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Date and Time of the Query: 2019-06-26 T15:43:49 PDT
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Diameter data point(s) for object NGC 6398

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.......:
39.5 (a) arcsec ... ... 0.560 (b/a) ... ... ... -40
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 79.00 ... 0.56 0.44 0.52 56 140
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
57.8 (a) arcsec ... ... 0.560 (b/a) ... ... ... -40
[J2000]
Diameter for "total" magnitude 1.38E+14 115.60 ... 0.56 0.44 0.52 56 140
[J2000]
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
2.60 arcmin 2.20 arcmin ... ... ... ... 6
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 156.00 ... 0.85 0.15 0.17 32 5
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
118.85 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 118.85 ... 0.85 0.15 0.17 32 5
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
158.49 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 158.49 ... 0.85 0.15 0.17 32 5
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
194.98 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 194.98 ... 0.85 0.15 0.17 32 5
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
93.33 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
70% total B light 6.81E+14 93.33 ... 0.85 0.15 0.17 32 5
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
114.82 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
80% total B light 6.81E+14 114.82 ... 0.85 0.15 0.17 32 5
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
147.91 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
90% total B light 6.81E+14 147.91 ... 0.85 0.15 0.17 32 5
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
57.54 arcsec ... ... 1.18 (a/b) ... ... ... 6.00
[B1950]
50% total B light, major dia. 6.81E+14 57.54 ... 0.85 0.15 0.17 32 5
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
52.48 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 52.48 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
18.81 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 18.81 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.07 arcsec ... ... 1.19 (a/b) ... ... ... 132.24
[B1950]
B exponential scale length 6.81E+14 0.07 ... 0.84 0.16 0.17 33 132
[J2000]
14 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.00 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.00 ... ... ... ... ... ...
15 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.31 log(2a) + 1 ... ... 0.08
log(a/b)
0.04 ... ... 6
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 122.50 11.80 0.83 0.17 0.18 34 5
[J2000]
16 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.34 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 131.30 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J17424370-6141395       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 39.5       arcsec               2a = 79.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 44.24 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.560                         b/a = 0.56
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.44
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.52
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 56 deg
Position Angle [Equinox]      :  -40   deg [J2000]                  140 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          : 265.682251      -61.694275    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J17424370-6141395 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 57.8 arcsec 2a = 115.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 64.74 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.560 b/a = 0.56 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : -40 deg [J2000] 140 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 : 265.682251 -61.694275 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 139- G 018 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 2.60 arcmin 2a = 156.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.20 arcmin 2b = 132.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6 deg [B1950] 5 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 : 173806. -614006. (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 118.85 arcsec 2a = 118.85 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 140.48 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 158.49 arcsec 2a = 158.49 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 187.34 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 194.98 arcsec 2a = 194.98 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 230.47 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 93.33 arcsec 2a = 93.33 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 110.32 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 114.82 arcsec 2a = 114.82 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 135.72 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 147.91 arcsec 2a = 147.91 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 174.83 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 57.54 arcsec 2a = 57.54 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 68.01 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 6.00 deg [B1950] 5 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 52.48 arcsec 2a = 52.48 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 : 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 18.81 arcsec 2a = 18.81 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.07 arcsec 2a = 0.07 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 0.08 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.19 b/a = 0.84 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.16 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 33 deg Position Angle [Equinox] : 132.24 deg [B1950] 132 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 : 264.524994 -61.668335 (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 1390180 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.00 arcsec 2a = 0.00 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 : 264.524994 -61.668335 (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 139- G 018 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.31 2a = 122.50 arcsec Uncertainty : 0.04 11.80 arcsec Minor Axis (2b) : ... 2b = 101.92 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.08 b/a = 0.83 Uncertainty : 0.05 0.10 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] : 6 deg [J2000] 5 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 : 174243.4 -614131. (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 139- G 018 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.34 2a = 131.30 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 : 174243.4 -614131. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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