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Date and Time of the Query: 2022-01-17 T12:17:28 PST
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Diameter data point(s) for object NGC 1553

Diameter Data --- Published and Homogenized (arcsec) Units

  Published UnitsHomogenized Units
No.Observed Passband
REFCODE
Major Axis
(2a)
Major Axis UnitsMinor Axis
(2b)
Minor Axis UnitsAxis Ratio (b/a)Major Axis Unc.Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
Position Angle
(deg)
[published]
Reference LevelFrequency (Hz)Major Axis
(2a)
(arcsec)
Major Axis Unc.Axis Ratio (b/a)Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
cos-1(b/a)
(deg)
Position Angle
(deg)
[J2000]
1 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
6.00 arcmin 3.20 arcmin ... ... ... ... 150
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 360.00 ... 0.53 0.47 0.56 58 150
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
380.19 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 380.19 ... 0.74 0.26 0.29 42 155
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
530.88 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 530.88 ... 0.74 0.26 0.29 42 155
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
767.36 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 767.36 ... 0.74 0.26 0.29 42 155
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
234.42 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
70% total B light 6.81E+14 234.42 ... 0.74 0.26 0.29 42 155
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
363.08 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
80% total B light 6.81E+14 363.08 ... 0.74 0.26 0.29 42 155
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
707.95 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
90% total B light 6.81E+14 707.95 ... 0.74 0.26 0.29 42 155
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
112.20 arcsec ... ... 1.34 (a/b) ... ... ... 154.92
[B1950]
50% total B light, major dia. 6.81E+14 112.20 ... 0.74 0.26 0.29 42 155
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
100.00 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 100.00 ... ... ... ... ... ...
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
27.30 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 27.30 ... ... ... ... ... ...
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.95 arcsec ... ... 1.53 (a/b) ... ... ... 150.25
[B1950]
B exponential scale length 6.81E+14 0.95 ... 0.65 0.35 0.40 49 151
[J2000]
12 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.98 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.98 ... ... ... ... ... ...
13 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.65 log(2a) + 1 ... ... 0.20
log(a/b)
0.02 ... ... 150
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 268.00 12.60 0.63 0.37 0.43 51 150
[J2000]
14 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.34 log(2a) + 1 ... ... ... 0.02 ... ... ... ... 6.81E+14 131.30 6.20 ... ... ... ... ...
15 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.62 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 250.10 ... ... ... ... ... ...
16 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
116.4 (a) arcsec ... ... 0.720 (b/a) ... ... ... -30.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 232.80 ... 0.72 0.28 0.32 44 150
[J2000]
17 K_s (LGA/2MASS "total")
2003AJ....125..525J
174.5 (a) arcsec ... ... 0.720 (b/a) ... ... ... -30.0
[J2000]
Diameter for "total" magnitude 1.38E+14 349.00 ... 0.72 0.28 0.32 44 150
[J2000]
18 0.5-7 keV Chandra
2020CSC...C2..0000:
6.36497701 arcsec 6.36497701 arcsec ... 1.52804035 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 6.36 1.53 6.36 -5.36 0.95 0 0
[J2000]
19 0.2-0.5 keV Chandra
2020CSC...C2..0000:
11.7985504 arcsec 11.7985504 arcsec ... 1.95141292 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.67E+16 11.80 1.95 11.80 -10.80 0.99 0 0
[J2000]
20 0.5-1.2 keV Chandra
2020CSC...C2..0000:
11.9807473 arcsec 11.9807473 arcsec ... 1.74934430 ... ... 0.0
[J2000]
extent deconvolved with PSF 2.22E+17 11.98 1.75 11.98 -10.98 0.99 0 0
[J2000]
21 1.2-2 keV Chandra
2020CSC...C2..0000:
102.399413 arcsec 102.399413 arcsec ... 4.09311966 ... ... 0.0
[J2000]
extent deconvolved with PSF 3.77E+17 102.40 4.09 102.40 -101.40 1.00 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1982ESOU..C...0000L
Published Object Name         : ESO 157- G 017                
Frequency Targeted            : ESO-Uppsala "Quick Blue" IIa-O
Major Axis (2a)               : 6.00       arcmin                   2a = 360.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =   3.20     arcmin              2b = 192.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.53
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.47
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.56
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 58 deg
Position Angle [Equinox]      : 150    deg [B1950]                  150 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : About 25.5 B-mag arcsec^-2^   
Frequency                     : 4400         A                      6.81E+14 Hz
Frequency Mode                : Broad-band detector (e.g. photographic plate)

Measurement Mode               
    Detector Type             : Photographic plate, print, or film
    Fitting Technique         : Eye estimate
    Measured Quantity         : "Outer" diameter
Coordinates Targeted          : 041505.         -555412.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 380.19 arcsec 2a = 380.19 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 510.32 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 3 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 530.88 arcsec 2a = 530.88 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 712.59 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 26.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 767.36 arcsec 2a = 767.36 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1030.01 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 27.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 234.42 arcsec 2a = 234.42 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 314.66 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 70% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 6 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 363.08 arcsec 2a = 363.08 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 487.36 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 80% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 7 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 707.95 arcsec 2a = 707.95 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 950.27 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 90% total B light Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 8 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 112.20 arcsec 2a = 112.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 150.60 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.34 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 154.92 deg [B1950] 155 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, major dia. Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 9 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 100.00 arcsec 2a = 100.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, aperture Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 27.30 arcsec 2a = 27.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B disk exp. scale length Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.95 arcsec 2a = 0.95 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1.45 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.53 b/a = 0.65 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.40 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 150.25 deg [B1950] 151 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B exponential scale length Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1570170 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.98 arcsec 2a = 0.98 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : R exponential scale length Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 63.770832 -55.903332 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 13 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 157- G 017 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.65 2a = 268.00 arcsec Uncertainty : 0.02 12.60 arcsec Minor Axis (2b) : ... 2b = 169.11 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.20 b/a = 0.63 Uncertainty : 0.02 0.03 Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 150 deg [J2000] 150 deg [J2000] Uncertainty : ... ... Significance : Mean error Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 041610.4 -554651. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 157- G 017 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.34 2a = 131.30 arcsec Uncertainty : 0.02 6.20 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : ... Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 041610.4 -554651. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 15 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 157- G 017 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.62 2a = 250.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 041610.4 -554651. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 16 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 1553 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 116.4 arcsec 2a = 232.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 167.62 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.720 b/a = 0.72 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : -30.0 deg [J2000] 150 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 20.0 K-mag arcsec^-2^ Frequency : 2.17 microns 1.38E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 64.043610 -55.780140 (J2000) Qualifiers : From new, raw data NED Comment :
No. 17 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 1553 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 174.5 arcsec 2a = 349.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 251.28 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.720 b/a = 0.72 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : -30.0 deg [J2000] 150 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Diameter for "total" magnitude Frequency : 2.17 microns 1.38E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 64.043610 -55.780140 (J2000) Qualifiers : From new, raw data NED Comment :
No. 18 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-7 keV Chandra Major Axis (2a) : 6.36497701 arcsec 2a = 6.36 arcsec Uncertainty : 1.52804035 arcsec 1.53 arcsec Minor Axis (2b) : 2b = 6.36497701 arcsec 2b = 6.36 arcsec Uncertainty : 1.52804035 1.53 Axis Ratio : ... b/a = 6.36 Uncertainty : ... 1.53 Ellipticity : ... 1 - b/a = -5.36 Uncertainty : ... 1.53 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.95 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 2.3 keV 5.56E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 19 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.2-0.5 keV Chandra Major Axis (2a) : 11.7985504 arcsec 2a = 11.80 arcsec Uncertainty : 1.95141292 arcsec 1.95 arcsec Minor Axis (2b) : 2b = 11.7985504 arcsec 2b = 11.80 arcsec Uncertainty : 1.95141292 1.95 Axis Ratio : ... b/a = 11.80 Uncertainty : ... 1.95 Ellipticity : ... 1 - b/a = -10.80 Uncertainty : ... 1.95 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.99 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.4 keV 9.67E+16 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 20 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-1.2 keV Chandra Major Axis (2a) : 11.9807473 arcsec 2a = 11.98 arcsec Uncertainty : 1.74934430 arcsec 1.75 arcsec Minor Axis (2b) : 2b = 11.9807473 arcsec 2b = 11.98 arcsec Uncertainty : 1.74934430 1.75 Axis Ratio : ... b/a = 11.98 Uncertainty : ... 1.75 Ellipticity : ... 1 - b/a = -10.98 Uncertainty : ... 1.75 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.99 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.92 keV 2.22E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 21 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 1.2-2 keV Chandra Major Axis (2a) : 102.399413 arcsec 2a = 102.40 arcsec Uncertainty : 4.09311966 arcsec 4.09 arcsec Minor Axis (2b) : 2b = 102.399413 arcsec 2b = 102.40 arcsec Uncertainty : 4.09311966 4.09 Axis Ratio : ... b/a = 102.40 Uncertainty : ... 4.09 Ellipticity : ... 1 - b/a = -101.40 Uncertainty : ... 4.09 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 1.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 1.56 keV 3.77E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :

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