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Date and Time of the Query: 2018-12-11 T20:04:56 PST
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Diameter data point(s) for object NGC 1879

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 POSS1 103a-O
1968MCG4..C...0000V
1.20 arcmin 0.40 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 72.00 ... 0.33 0.67 0.80 71 ...
2 POSS1 103a-O
1968MCG4..C...0000V
2.50 arcmin 2.00 arcmin ... ... ... ... ... Very low surface brightness 7.40E+14 150.00 ... 0.80 0.20 0.22 37 ...
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
3.00 arcmin 2.00 arcmin ... ... ... ... 60
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 180.00 ... 0.67 0.33 0.38 48 60
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
146.22 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 146.22 ... 0.67 0.33 0.38 48 60
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
175.79 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 175.79 ... 0.67 0.33 0.38 48 60
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
197.24 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 197.24 ... 0.67 0.33 0.38 48 60
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
98.86 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
70% total B light 6.81E+14 98.86 ... 0.67 0.33 0.38 48 60
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
116.14 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
80% total B light 6.81E+14 116.14 ... 0.67 0.33 0.38 48 60
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
142.89 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
90% total B light 6.81E+14 142.89 ... 0.67 0.33 0.38 48 60
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
72.44 arcsec ... ... 1.50 (a/b) ... ... ... 60.00
[B1950]
50% total B light, major dia. 6.81E+14 72.44 ... 0.67 0.33 0.38 48 60
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
60.95 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 60.95 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
28.17 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 28.17 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
16.33 arcsec ... ... 2.07 (a/b) ... ... ... 68.63
[B1950]
B exponential scale length 6.81E+14 16.33 ... 0.48 0.52 0.62 61 69
[J2000]
14 ESO-LV IIIa-F
1989ESOLV.C...0000L
10.56 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 10.56 ... ... ... ... ... ...
15 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.39 log(2a) + 1 ... ... 0.16
log(a/b)
0.02 ... ... 60
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 147.30 6.90 0.69 0.31 0.35 46 60
[J2000]
16 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.05 log(2a) + 1 ... ... ... 0.01 ... ... ... ... 6.81E+14 67.30 1.60 ... ... ... ... ...
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.39 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 147.30 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1968MCG4..C...0000V
Published Object Name         : MCG -05-13-016                
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.20       arcmin                   2a = 72.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.40      arcmin              2b = 24.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.33
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.67
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.80
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 71 deg
Position Angle [Equinox]      : ...                                 ...
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : Intermed. 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          : 051748          -3213    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -05-13-016 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.50 arcmin 2a = 150.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.00 arcmin 2b = 120.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very low 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 : 051748 -3213 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 423- G 006 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 3.00 arcmin 2a = 180.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.00 arcmin 2b = 120.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60 deg [B1950] 60 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 : 051756. -321130. (B1950) Qualifiers : From new, raw data NED Comment : Diameters flagged uncertain.
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 146.22 arcsec 2a = 146.22 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 219.22 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 175.79 arcsec 2a = 175.79 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 263.55 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 197.24 arcsec 2a = 197.24 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 295.71 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 98.86 arcsec 2a = 98.86 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 148.22 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 116.14 arcsec 2a = 116.14 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 174.12 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 142.89 arcsec 2a = 142.89 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 214.23 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 72.44 arcsec 2a = 72.44 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 108.61 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.50 b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 60.00 deg [B1950] 60 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 : 79.483330 -32.191666 (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 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 60.95 arcsec 2a = 60.95 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 : 79.483330 -32.191666 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 28.17 arcsec 2a = 28.17 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 : 79.483330 -32.191666 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4230060 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 16.33 arcsec 2a = 16.33 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 33.74 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.07 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.62 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 68.63 deg [B1950] 69 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 : 79.483330 -32.191666 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4230060 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 10.56 arcsec 2a = 10.56 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 : 79.483330 -32.191666 (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 : 1991RC3.9.C...0000d Published Object Name : ESO 423- G 006 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.39 2a = 147.30 arcsec Uncertainty : 0.02 6.90 arcsec Minor Axis (2b) : ... 2b = 101.93 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.16 b/a = 0.69 Uncertainty : 0.04 0.07 Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.35 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 60 deg [J2000] 60 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 : 051948.4 -320831. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 16 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 423- G 006 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.05 2a = 67.30 arcsec Uncertainty : 0.01 1.60 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 : 051948.4 -320831. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 17 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 423- G 006 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.39 2a = 147.30 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 : 051948.4 -320831. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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