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Date and Time of the Query: 2019-03-21 T07:07:34 PDT
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Diameter data point(s) for object NGC 1546

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
3.70 arcmin 2.00 arcmin ... ... ... ... 147
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 222.00 ... 0.54 0.46 0.55 57 147
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
204.17 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 204.17 ... 0.54 0.46 0.55 57 147
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
269.15 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 269.15 ... 0.54 0.46 0.55 57 147
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
334.97 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 334.97 ... 0.54 0.46 0.55 57 147
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
128.82 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
70% total B light 6.81E+14 128.82 ... 0.54 0.46 0.55 57 147
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
165.96 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
80% total B light 6.81E+14 165.96 ... 0.54 0.46 0.55 57 147
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
231.74 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
90% total B light 6.81E+14 231.74 ... 0.54 0.46 0.55 57 147
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
73.28 arcsec ... ... 1.85 (a/b) ... ... ... 147.00
[B1950]
50% total B light, major dia. 6.81E+14 73.28 ... 0.54 0.46 0.55 57 147
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
57.54 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 57.54 ... ... ... ... ... ...
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
19.89 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 19.89 ... ... ... ... ... ...
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.32 arcsec ... ... 2.04 (a/b) ... ... ... 147.17
[B1950]
B exponential scale length 6.81E+14 0.32 ... 0.49 0.51 0.61 61 148
[J2000]
12 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.08 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.08 ... ... ... ... ... ...
13 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.48 log(2a) + 1 ... ... 0.26
log(a/b)
0.03 ... ... 147
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 181.20 13.00 0.55 0.45 0.54 57 147
[J2000]
14 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.27 log(2a) + 1 ... ... ... 0.03 ... ... ... ... 6.81E+14 111.70 8.00 ... ... ... ... ...
15 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.44 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 165.30 ... ... ... ... ... ...
16 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
70.6 (a) arcsec ... ... 0.530 (b/a) ... ... ... -33.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 141.20 ... 0.53 0.47 0.56 58 147
[J2000]
17 K_s (LGA/2MASS "total")
2003AJ....125..525J
116.5 (a) arcsec ... ... 0.530 (b/a) ... ... ... -33.0
[J2000]
Diameter for "total" magnitude 1.38E+14 233.00 ... 0.53 0.47 0.56 58 147
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1982ESOU..C...0000L
Published Object Name         : ESO 157- G 012                
Frequency Targeted            : ESO-Uppsala "Quick Blue" IIa-O
Major Axis (2a)               : 3.70       arcmin                   2a = 222.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =   2.00     arcmin              2b = 120.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.54
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.46
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.55
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 57 deg
Position Angle [Equinox]      : 147    deg [B1950]                  147 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          : 041332.         -561106.    (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 204.17 arcsec 2a = 204.17 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 377.39 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 269.15 arcsec 2a = 269.15 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 497.50 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 334.97 arcsec 2a = 334.97 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 619.17 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 128.82 arcsec 2a = 128.82 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 238.11 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 165.96 arcsec 2a = 165.96 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 306.77 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 231.74 arcsec 2a = 231.74 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 428.35 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 73.28 arcsec 2a = 73.28 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 135.45 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.85 b/a = 0.54 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147.00 deg [B1950] 147 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 57.54 arcsec 2a = 57.54 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 19.89 arcsec 2a = 19.89 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.32 arcsec 2a = 0.32 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 0.65 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.04 b/a = 0.49 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.61 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 147.17 deg [B1950] 148 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 : 63.383335 -56.185001 (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 1570120 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.08 arcsec 2a = 0.08 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 : 63.383335 -56.185001 (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 012 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.48 2a = 181.20 arcsec Uncertainty : 0.03 13.00 arcsec Minor Axis (2b) : ... 2b = 99.66 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.26 b/a = 0.55 Uncertainty : 0.03 0.04 Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 147 deg [J2000] 147 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 : 041436.7 -560339. (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 012 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.27 2a = 111.70 arcsec Uncertainty : 0.03 8.00 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 : 041436.7 -560339. (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 012 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.44 2a = 165.30 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 : 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 : 041436.7 -560339. (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 1546 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 70.6 arcsec 2a = 141.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 74.84 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.530 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] : -33.0 deg [J2000] 147 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 : 63.652260 -56.060810 (J2000) Qualifiers : From new, raw data NED Comment :
No. 17 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 1546 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 116.5 arcsec 2a = 233.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 123.49 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.530 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] : -33.0 deg [J2000] 147 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 : 63.652260 -56.060810 (J2000) Qualifiers : From new, raw data NED Comment :

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