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Date and Time of the Query: 2019-06-17 T18:47:16 PDT
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Diameter data point(s) for object NGC 6987

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.......:
33.3 (a) arcsec ... ... 0.880 (b/a) ... ... ... -25
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 66.60 ... 0.88 0.12 0.13 28 155
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
49.7 (a) arcsec ... ... 0.880 (b/a) ... ... ... -25
[J2000]
Diameter for "total" magnitude 1.38E+14 99.40 ... 0.88 0.12 0.13 28 155
[J2000]
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
1.00 arcmin 1.00 arcmin ... ... ... ... ... About 25.5 B-mag arcsec^-2^ 6.81E+14 60.00 ... 1.00 0.00 0.00 0 ...
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
90.16 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 90.16 ... 0.81 0.19 0.21 36 123
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
133.35 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 133.35 ... 0.81 0.19 0.21 36 123
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
169.82 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 169.82 ... 0.81 0.19 0.21 36 123
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
58.21 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
70% total B light 6.81E+14 58.21 ... 0.81 0.19 0.21 36 123
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
81.28 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
80% total B light 6.81E+14 81.28 ... 0.81 0.19 0.21 36 123
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
118.85 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
90% total B light 6.81E+14 118.85 ... 0.81 0.19 0.21 36 123
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
31.26 arcsec ... ... 1.23 (a/b) ... ... ... 123.00
[B1950]
50% total B light, major dia. 6.81E+14 31.26 ... 0.81 0.19 0.21 36 123
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
28.51 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 28.51 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
9.53 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 9.53 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.08 arcsec ... ... 1.05 (a/b) ... ... ... 123.15
[B1950]
B exponential scale length 6.81E+14 0.08 ... 0.95 0.05 0.05 18 123
[J2000]
14 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.01 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.01 ... ... ... ... ... ...
15 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.16 log(2a) + 1 ... ... 0.08
log(a/b)
0.04 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 86.70 8.40 0.83 0.17 0.18 34 ...
16 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
0.85 log(2a) + 1 ... ... ... 0.03 ... ... ... ... 6.81E+14 42.50 3.00 ... ... ... ... ...
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.15 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 84.80 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J20581033-4837491       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 33.3       arcsec               2a = 66.60 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 58.61 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.880                         b/a = 0.88
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.12
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.13
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 28 deg
Position Angle [Equinox]      :  -25   deg [J2000]                  155 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          : 314.543182      -48.630302    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J20581033-4837491 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 49.7 arcsec 2a = 99.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 87.47 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.880 b/a = 0.88 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.12 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.13 Uncertainty : ... ... Cos-1(b/a) : ... 28 deg Position Angle [Equinox] : -25 deg [J2000] 155 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 : 314.543182 -48.630302 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 235- G 021 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 1.00 arcmin 2a = 60.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.00 arcmin 2b = 60.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 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 : 205442. -484924. (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 90.16 arcsec 2a = 90.16 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 111.17 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 133.35 arcsec 2a = 133.35 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 164.43 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 169.82 arcsec 2a = 169.82 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 209.40 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 58.21 arcsec 2a = 58.21 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 71.78 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 81.28 arcsec 2a = 81.28 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 100.22 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 118.85 arcsec 2a = 118.85 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 146.55 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 31.26 arcsec 2a = 31.26 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 38.55 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.23 b/a = 0.81 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.21 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 123.00 deg [B1950] 123 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 28.51 arcsec 2a = 28.51 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 9.53 arcsec 2a = 9.53 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 : 313.674988 -48.823334 (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 2350210 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.08 arcsec 2a = 0.08 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 0.08 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.05 b/a = 0.95 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.05 Uncertainty : ... ... Cos-1(b/a) : ... 18 deg Position Angle [Equinox] : 123.15 deg [B1950] 123 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 : 313.674988 -48.823334 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 14 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 2350210 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.01 arcsec 2a = 0.01 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 : 313.674988 -48.823334 (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 : 1991RC3.9.C...0000d Published Object Name : ESO 235- G 021 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.16 2a = 86.70 arcsec Uncertainty : 0.04 8.40 arcsec Minor Axis (2b) : ... 2b = 72.13 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.08 b/a = 0.83 Uncertainty : 0.03 0.06 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 : 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 : 205810.5 -483746. (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 235- G 021 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 0.85 2a = 42.50 arcsec Uncertainty : 0.03 3.00 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 : 205810.5 -483746. (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 235- G 021 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.15 2a = 84.80 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 : 205810.5 -483746. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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