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Date and Time of the Query: 2019-06-24 T17:39:15 PDT
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Diameter data point(s) for object NGC 1979

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.......:
39.1 (a) arcsec ... ... 0.980 (b/a) ... ... ... -35
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 78.20 ... 0.98 0.02 0.02 11 145
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
57.3 (a) arcsec ... ... 0.980 (b/a) ... ... ... -35
[J2000]
Diameter for "total" magnitude 1.38E+14 114.50 ... 0.98 0.02 0.02 11 145
[J2000]
3 POSS1 103a-O
1968MCG4..C...0000V
0.60 arcmin 0.45 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 36.00 ... 0.75 0.25 0.28 41 ...
4 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
2.40 arcmin 2.00 arcmin ... ... ... ... ... About 25.5 B-mag arcsec^-2^ 6.81E+14 144.00 ... 0.83 0.17 0.18 34 ...
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
121.62 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 121.62 ... 0.79 0.21 0.23 38 8
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
173.78 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 173.78 ... 0.79 0.21 0.23 38 8
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
234.42 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 234.42 ... 0.79 0.21 0.23 38 8
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
78.52 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
70% total B light 6.81E+14 78.52 ... 0.79 0.21 0.23 38 8
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
107.15 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
80% total B light 6.81E+14 107.15 ... 0.79 0.21 0.23 38 8
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
164.06 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
90% total B light 6.81E+14 164.06 ... 0.79 0.21 0.23 38 8
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
41.21 arcsec ... ... 1.26 (a/b) ... ... ... 7.70
[B1950]
50% total B light, major dia. 6.81E+14 41.21 ... 0.79 0.21 0.23 38 8
[J2000]
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
37.15 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 37.15 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
12.72 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 12.72 ... ... ... ... ... ...
14 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.11 arcsec ... ... 1.21 (a/b) ... ... ... 3.16
[B1950]
B exponential scale length 6.81E+14 0.11 ... 0.82 0.18 0.19 34 3
[J2000]
15 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.05 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.05 ... ... ... ... ... ...
16 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.34 log(2a) + 1 ... ... 0.09
log(a/b)
0.05 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 131.30 16.00 0.81 0.19 0.20 36 ...
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.33 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 128.30 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J05340112-2318361       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 39.1       arcsec               2a = 78.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 76.64 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.980                         b/a = 0.98
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.02
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.02
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 11 deg
Position Angle [Equinox]      :  -35   deg [J2000]                  145 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          : 83.504616       -23.310078    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J05340112-2318361 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 57.3 arcsec 2a = 114.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 112.21 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.980 b/a = 0.98 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.02 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.02 Uncertainty : ... ... Cos-1(b/a) : ... 11 deg Position Angle [Equinox] : -35 deg [J2000] 145 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 : 83.504616 -23.310078 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -04-14-004 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.60 arcmin 2a = 36.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.45 arcmin 2b = 27.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.75 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 41 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very 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 : 053148 -2321 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 487- G 024 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 2.40 arcmin 2a = 144.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.00 arcmin 2b = 120.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.83 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.17 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.18 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : ... ... 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 : 053156. -232030. (B1950) Qualifiers : From new, raw data NED Comment : Diameters flagged uncertain.
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 121.62 arcsec 2a = 121.62 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 153.37 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 173.78 arcsec 2a = 173.78 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 219.14 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 234.42 arcsec 2a = 234.42 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 295.61 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 78.52 arcsec 2a = 78.52 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 99.02 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 107.15 arcsec 2a = 107.15 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 135.12 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 164.06 arcsec 2a = 164.06 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 206.89 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 41.21 arcsec 2a = 41.21 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 51.97 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.26 b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 7.70 deg [B1950] 8 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 : 82.983330 -23.341667 (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 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 37.15 arcsec 2a = 37.15 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 : 82.983330 -23.341667 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 12.72 arcsec 2a = 12.72 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 : 82.983330 -23.341667 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4870240 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.11 arcsec 2a = 0.11 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 0.13 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.21 b/a = 0.82 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : 3.16 deg [B1950] 3 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 : 82.983330 -23.341667 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 15 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4870240 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.05 arcsec 2a = 0.05 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 : 82.983330 -23.341667 (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 : 1991RC3.9.C...0000d Published Object Name : ESO 487- G 024 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.34 2a = 131.30 arcsec Uncertainty : 0.05 16.00 arcsec Minor Axis (2b) : ... 2b = 106.75 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.09 b/a = 0.81 Uncertainty : 0.04 0.08 Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : ... ... 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 : 053401.2 -231832. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 17 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 487- G 024 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.33 2a = 128.30 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 : 053401.2 -231832. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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