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Date and Time of the Query: 2019-06-25 T03:54:44 PDT
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Diameter data point(s) for object IC 1946

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.......:
22.8 (a) arcsec ... ... 0.520 (b/a) ... ... ... 75
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 45.60 ... 0.52 0.48 0.57 59 75
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
40.1 (a) arcsec ... ... 0.520 (b/a) ... ... ... 75
[J2000]
Diameter for "total" magnitude 1.38E+14 80.20 ... 0.52 0.48 0.57 59 75
[J2000]
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
1.00 arcmin 0.50 arcmin ... ... ... ... 62
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 60.00 ... 0.50 0.50 0.60 60 62
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
51.88 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 51.88 ... 0.51 0.49 0.58 59 66
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
63.83 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 63.83 ... 0.51 0.49 0.58 59 66
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
75.0 arcsec ... ... 1.953 (a/b) ... ... ... 65.31
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 75.00 ... 0.51 0.49 0.58 59 65
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
74.99 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 74.99 ... 0.51 0.49 0.58 59 66
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
31.26 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
70% total B light 6.81E+14 31.26 ... 0.51 0.49 0.58 59 66
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
38.46 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
80% total B light 6.81E+14 38.46 ... 0.51 0.49 0.58 59 66
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
49.55 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
90% total B light 6.81E+14 49.55 ... 0.51 0.49 0.58 59 66
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
19.72 arcsec ... ... 1.95 (a/b) ... ... ... 65.31
[B1950]
50% total B light, major dia. 6.81E+14 19.72 ... 0.51 0.49 0.58 59 66
[J2000]
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
15.49 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 15.49 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
8.52 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 8.52 ... ... ... ... ... ...
14 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.16 arcsec ... ... 1.89 (a/b) ... ... ... 68.27
[B1950]
B exponential scale length 6.81E+14 0.16 ... 0.53 0.47 0.56 58 69
[J2000]
15 ESO-LV IIIa-F
1989ESOLV.C...0000L
0.02 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 0.02 ... ... ... ... ... ...
16 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.95 log(2a) + 1 ... ... 0.30
log(a/b)
0.06 ... ... 62
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 53.50 7.90 0.50 0.50 0.60 60 62
[J2000]
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.90 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 47.70 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J03292219-5237094       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 22.8       arcsec               2a = 45.60 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 23.71 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.520                         b/a = 0.52
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.48
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.57
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 59 deg
Position Angle [Equinox]      :   75   deg [J2000]                  75 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          : 52.342464       -52.619343    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J03292219-5237094 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 40.1 arcsec 2a = 80.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 41.70 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.520 b/a = 0.52 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.48 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.57 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 75 deg [J2000] 75 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 : 52.342464 -52.619343 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 155- G 039 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 1.00 arcmin 2a = 60.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.50 arcmin 2b = 30.00 arcsec Uncertainty : ... ... Axis Ratio : ... 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] : 62 deg [B1950] 62 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 : 032758. -524724. (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 51.88 arcsec 2a = 51.88 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 101.33 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 63.83 arcsec 2a = 63.83 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 124.67 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 75.0 arcsec 2a = 75.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 146.48 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.953 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 65 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 : 51.99166 -52.79000 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 74.99 arcsec 2a = 74.99 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 146.46 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 31.26 arcsec 2a = 31.26 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 61.05 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 38.46 arcsec 2a = 38.46 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 75.12 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 49.55 arcsec 2a = 49.55 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 96.78 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 19.72 arcsec 2a = 19.72 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 38.52 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.95 b/a = 0.51 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 65.31 deg [B1950] 66 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 15.49 arcsec 2a = 15.49 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 8.52 arcsec 2a = 8.52 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.16 arcsec 2a = 0.16 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 0.30 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.89 b/a = 0.53 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 68.27 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 : 51.991665 -52.790001 (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 1550390 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 0.02 arcsec 2a = 0.02 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 : 51.991665 -52.790001 (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 155- G 039 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.95 2a = 53.50 arcsec Uncertainty : 0.06 7.90 arcsec Minor Axis (2b) : ... 2b = 26.80 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.30 b/a = 0.50 Uncertainty : 0.03 0.04 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] : 62 deg [J2000] 62 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 : 032922.5 -523709. (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 155- G 039 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.90 2a = 47.70 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 : 032922.5 -523709. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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