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Date and Time of the Query: 2019-05-25 T06:53:54 PDT
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Diameter data point(s) for object NGC 7301

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.......:
24.1 (a) arcsec ... ... 0.580 (b/a) ... ... ... 5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 48.20 ... 0.58 0.42 0.50 55 5
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
37.9 (a) arcsec ... ... 0.580 (b/a) ... ... ... 5
[J2000]
Diameter for "total" magnitude 1.38E+14 75.90 ... 0.58 0.42 0.50 55 5
[J2000]
3 POSS1 103a-O
1968MCG4..C...0000V
0.80 arcmin 0.40 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 48.00 ... 0.50 0.50 0.60 60 ...
4 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
1.00 arcmin 0.50 arcmin ... ... ... ... 1
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 60.00 ... 0.50 0.50 0.60 60 1
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
71.61 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 71.61 ... 0.50 0.50 0.60 60 1
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
91.20 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 91.20 ... 0.50 0.50 0.60 60 1
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
117.49 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 117.49 ... 0.50 0.50 0.60 60 1
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
39.35 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
70% total B light 6.81E+14 39.35 ... 0.50 0.50 0.60 60 1
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
47.32 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
80% total B light 6.81E+14 47.32 ... 0.50 0.50 0.60 60 1
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
65.31 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
90% total B light 6.81E+14 65.31 ... 0.50 0.50 0.60 60 1
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
29.85 arcsec ... ... 2.00 (a/b) ... ... ... 1.00
[B1950]
50% total B light, major dia. 6.81E+14 29.85 ... 0.50 0.50 0.60 60 1
[J2000]
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
22.13 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 22.13 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
10.00 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 10.00 ... ... ... ... ... ...
14 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
14.01 arcsec ... ... 1.73 (a/b) ... ... ... 177.46
[B1950]
B exponential scale length 6.81E+14 14.01 ... 0.58 0.42 0.50 55 177
[J2000]
15 ESO-LV IIIa-F
1989ESOLV.C...0000L
7.83 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 7.83 ... ... ... ... ... ...
16 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.01 log(2a) + 1 ... ... 0.29
log(a/b)
0.04 ... ... 1
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 61.40 5.90 0.51 0.49 0.58 59 1
[J2000]
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.02 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 62.80 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J22303473-1734254       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 24.1       arcsec               2a = 48.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 27.96 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.580                         b/a = 0.58
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.42
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.50
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 55 deg
Position Angle [Equinox]      :    5   deg [J2000]                  5 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          : 337.644684      -17.573778    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J22303473-1734254 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 37.9 arcsec 2a = 75.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 44.02 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.580 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 5 deg [J2000] 5 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 : 337.644684 -17.573778 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -03-57-015 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.80 arcmin 2a = 48.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 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] : ... ... 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 : "Outer" diameter Coordinates Targeted : 222754 -1750 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 602- G 023 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] : 1 deg [B1950] 1 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 : 222753. -174948. (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 71.61 arcsec 2a = 71.61 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 143.22 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 91.20 arcsec 2a = 91.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 182.40 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 117.49 arcsec 2a = 117.49 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 234.98 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 39.35 arcsec 2a = 39.35 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 78.70 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 47.32 arcsec 2a = 47.32 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 94.64 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 65.31 arcsec 2a = 65.31 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 130.62 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 29.85 arcsec 2a = 29.85 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 59.70 arcsec Uncertainty : ... ... Axis Ratio : a/b = 2.00 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] : 1.00 deg [B1950] 1 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 22.13 arcsec 2a = 22.13 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 10.00 arcsec 2a = 10.00 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 : 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 : 336.970825 -17.830000 (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 6020230 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 14.01 arcsec 2a = 14.01 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 24.28 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.73 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 177.46 deg [B1950] 177 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 : 336.970825 -17.830000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 15 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 6020230 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 7.83 arcsec 2a = 7.83 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 : 336.970825 -17.830000 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 16 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 602- G 023 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.01 2a = 61.40 arcsec Uncertainty : 0.04 5.90 arcsec Minor Axis (2b) : ... 2b = 31.50 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.29 b/a = 0.51 Uncertainty : 0.03 0.04 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] : 1 deg [J2000] 1 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 : 223035.0 -173423. (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 602- G 023 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.02 2a = 62.80 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 : 223035.0 -173423. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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