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Date and Time of the Query: 2019-03-23 T04:05:15 PDT
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Diameter data point(s) for object NGC 2566

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 K_s (2MASS isophotal)
20032MASX.C.......:
90.2 (a) arcsec ... ... 0.500 (b/a) ... ... ... 72
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 180.40 ... 0.50 0.50 0.60 60 72
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
162.5 (a) arcsec ... ... 0.500 (b/a) ... ... ... 72
[J2000]
Diameter for "total" magnitude 1.38E+14 325.00 ... 0.50 0.50 0.60 60 72
[J2000]
3 POSS1 103a-O
1968MCG4..C...0000V
1.80 arcmin 0.30 arcmin ... ... ... ... ... High surface brightness 7.40E+14 108.00 ... 0.17 0.83 0.95 80 ...
4 POSS1 103a-O
1968MCG4..C...0000V
3.00 arcmin 1.80 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 180.00 ... 0.60 0.40 0.47 53 ...
5 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
5.50 arcmin 4.00 arcmin ... ... ... ... 110
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 330.00 ... 0.73 0.27 0.31 43 110
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
242.66 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 242.66 ... 0.73 0.27 0.31 43 110
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
305.49 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 305.49 ... 0.73 0.27 0.31 43 110
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
375.84 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 375.84 ... 0.73 0.27 0.31 43 110
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
167.88 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
70% total B light 6.81E+14 167.88 ... 0.73 0.27 0.31 43 110
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
206.54 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
80% total B light 6.81E+14 206.54 ... 0.73 0.27 0.31 43 110
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
275.42 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
90% total B light 6.81E+14 275.42 ... 0.73 0.27 0.31 43 110
[J2000]
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
110.92 arcsec ... ... 1.38 (a/b) ... ... ... 110.00
[B1950]
50% total B light, major dia. 6.81E+14 110.92 ... 0.73 0.27 0.31 43 110
[J2000]
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
92.26 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 92.26 ... ... ... ... ... ...
14 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
44.48 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 44.48 ... ... ... ... ... ...
15 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1.31 arcsec ... ... 2.65 (a/b) ... ... ... 57.02
[B1950]
B exponential scale length 6.81E+14 1.31 ... 0.38 0.62 0.75 68 57
[J2000]
16 ESO-LV IIIa-F
1989ESOLV.C...0000L
2.64 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 2.64 ... ... ... ... ... ...
17 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.53 log(2a) + 1 ... ... 0.17
log(a/b)
0.02 ... ... 110
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 203.30 9.60 0.68 0.32 0.37 47 110
[J2000]
18 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.14 log(2a) + 1 ... ... ... 0.03 ... ... ... ... 6.81E+14 82.80 5.90 ... ... ... ... ...
19 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.67 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 280.60 ... ... ... ... ... ...
20 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
90.2 (a) arcsec ... ... 0.500 (b/a) ... ... ... 72.5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 180.40 ... 0.50 0.50 0.60 60 73
[J2000]
21 K_s (LGA/2MASS "total")
2003AJ....125..525J
162.5 (a) arcsec ... ... 0.500 (b/a) ... ... ... 72.5
[J2000]
Diameter for "total" magnitude 1.38E+14 325.00 ... 0.50 0.50 0.60 60 73
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J08184560-2529582       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 90.2       arcsec               2a = 180.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 90.20 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.500                         b/a = 0.50
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.50
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.60
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 60 deg
Position Angle [Equinox]      :   72   deg [J2000]                  72 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          : 124.690033      -25.499519    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J08184560-2529582 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 162.5 arcsec 2a = 325.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 162.50 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.500 b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 72 deg [J2000] 72 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 : 124.690033 -25.499519 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -04-20-008 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.80 arcmin 2a = 108.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.17 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.83 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.95 Uncertainty : ... ... Cos-1(b/a) : ... 80 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : High surface brightness Frequency : 4050 A 7.40E+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 : "Inner" diameter Coordinates Targeted : 081642 -2519 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -04-20-008 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 3.00 arcmin 2a = 180.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.80 arcmin 2b = 108.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Moderate surface brightness Frequency : 4050 A 7.40E+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 : 081642 -2519 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 495- G 003 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 5.50 arcmin 2a = 330.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 4.00 arcmin 2b = 240.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110 deg [B1950] 110 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 : 081638. -252024. (B1950) Qualifiers : From new, raw data NED Comment : Diameters and PA flagged uncertain.
No. 6 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 242.66 arcsec 2a = 242.66 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 333.78 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (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 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 305.49 arcsec 2a = 305.49 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 420.21 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (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 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 375.84 arcsec 2a = 375.84 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 516.97 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (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 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 167.88 arcsec 2a = 167.88 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 230.92 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 206.54 arcsec 2a = 206.54 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 284.10 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 275.42 arcsec 2a = 275.42 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 378.84 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 110.92 arcsec 2a = 110.92 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 152.57 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.38 b/a = 0.73 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 110.00 deg [B1950] 110 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 92.26 arcsec 2a = 92.26 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 44.48 arcsec 2a = 44.48 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 15 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1.31 arcsec 2a = 1.31 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 3.47 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.65 b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : 57.02 deg [B1950] 57 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 16 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4950030 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 2.64 arcsec 2a = 2.64 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 : 124.158333 -25.340000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 17 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 495- G 003 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.53 2a = 203.30 arcsec Uncertainty : 0.02 9.60 arcsec Minor Axis (2b) : ... 2b = 137.43 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.17 b/a = 0.68 Uncertainty : 0.04 0.07 Ellipticity : ... 1 - b/a = 0.32 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.37 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : 110 deg [J2000] 110 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 : 081845.6 -252951. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 18 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 495- G 003 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.14 2a = 82.80 arcsec Uncertainty : 0.03 5.90 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 : 081845.6 -252951. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 19 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 495- G 003 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.67 2a = 280.60 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 : 081845.6 -252951. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 20 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 2566 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 90.2 arcsec 2a = 180.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 90.20 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.500 b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 72.5 deg [J2000] 73 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 : 124.690033 -25.499519 (J2000) Qualifiers : From new, raw data NED Comment :
No. 21 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 2566 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 162.5 arcsec 2a = 325.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 162.50 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.500 b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 72.5 deg [J2000] 73 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 : 124.690033 -25.499519 (J2000) Qualifiers : From new, raw data NED Comment :

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