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Date and Time of the Query: 2019-05-21 T00:11:35 PDT
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Diameter data point(s) for object NGC 0253

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
6.00 arcmin 2.20 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 360.00 ... 0.37 0.63 0.76 68 ...
2 POSS1 103a-O
1968MCG4..C...0000V
25.00 arcmin 5.00 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 1500.00 ... 0.20 0.80 0.92 78 ...
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
32.00 arcmin 8.00 arcmin ... ... ... ... 52
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 1920.00 ... 0.25 0.75 0.88 76 52
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1798.87 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 1798.87 ... 0.25 0.75 0.88 76 52
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
2137.96 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 2137.96 ... 0.25 0.75 0.88 76 52
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
2371.37 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
27.0 B-mag arcsec^-2^ 6.81E+14 2371.37 ... 0.25 0.75 0.88 76 52
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1000.00 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
70% total B light 6.81E+14 1000.00 ... 0.25 0.75 0.88 76 52
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1202.26 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
80% total B light 6.81E+14 1202.26 ... 0.25 0.75 0.88 76 52
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1513.56 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
90% total B light 6.81E+14 1513.56 ... 0.25 0.75 0.88 76 52
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
724.44 arcsec ... ... 4.00 (a/b) ... ... ... 52.00
[B1950]
50% total B light, major dia. 6.81E+14 724.44 ... 0.25 0.75 0.88 76 52
[J2000]
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
473.15 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 473.15 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
181.35 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 181.35 ... ... ... ... ... ...
13 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
164.38 arcsec ... ... 4.74 (a/b) ... ... ... 52.36
[B1950]
B exponential scale length 6.81E+14 164.38 ... 0.21 0.79 0.91 78 52
[J2000]
14 ESO-LV IIIa-F
1989ESOLV.C...0000L
62.39 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 62.39 ... ... ... ... ... ...
15 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
2.44 log(2a) + 1 ... ... 0.61
log(a/b)
0.01 ... ... 52
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 1652.50 38.50 0.24 0.76 0.89 76 52
[J2000]
16 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.84 log(2a) + 1 ... ... ... 0.04 ... ... ... ... 6.81E+14 415.10 40.00 ... ... ... ... ...
17 RC3 D_0 (blue)
1991RC3.9.C...0000d
2.45 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 1691.00 ... ... ... ... ... ...
18 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
630.2 (a) arcsec ... ... 0.240 (b/a) ... ... ... 51.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 1260.40 ... 0.24 0.76 0.89 76 51
[J2000]
19 K_s (LGA/2MASS "total")
2003AJ....125..525J
921.8 (a) arcsec ... ... 0.240 (b/a) ... ... ... 51.0
[J2000]
Diameter for "total" magnitude 1.38E+14 1843.60 ... 0.24 0.76 0.89 76 51
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1968MCG4..C...0000V
Published Object Name         : MCG -04-03-009                
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 6.00       arcmin                   2a = 360.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  2.20      arcmin              2b = 132.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.37
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.63
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.76
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 68 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         : "Inner" diameter
Coordinates Targeted          : 004512          -2533    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -04-03-009 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 25.00 arcmin 2a = 1500.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 5.00 arcmin 2b = 300.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.20 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.80 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.92 Uncertainty : ... ... Cos-1(b/a) : ... 78 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 : "Outer" diameter Coordinates Targeted : 004512 -2533 (B1950) Qualifiers : Uncertain origin NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 474- G 029 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 32.00 arcmin 2a = 1920.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 8.00 arcmin 2b = 480.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52 deg [B1950] 52 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 : 004507. -253354. (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1798.87 arcsec 2a = 1798.87 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 7195.48 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 2137.96 arcsec 2a = 2137.96 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 8551.84 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 2371.37 arcsec 2a = 2371.37 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 9485.48 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1000.00 arcsec 2a = 1000.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 4000.00 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1202.26 arcsec 2a = 1202.26 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 4809.04 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1513.56 arcsec 2a = 1513.56 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 6054.24 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 724.44 arcsec 2a = 724.44 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 2897.76 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.00 b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52.00 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 473.15 arcsec 2a = 473.15 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 181.35 arcsec 2a = 181.35 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 164.38 arcsec 2a = 164.38 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 779.05 arcsec Uncertainty : ... ... Axis Ratio : a/b = 4.74 b/a = 0.21 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.79 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.91 Uncertainty : ... ... Cos-1(b/a) : ... 78 deg Position Angle [Equinox] : 52.36 deg [B1950] 52 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 : 11.279166 -25.565001 (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 4740290 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 62.39 arcsec 2a = 62.39 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 : 11.279166 -25.565001 (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 474- G 029 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 2.44 2a = 1652.50 arcsec Uncertainty : 0.01 38.50 arcsec Minor Axis (2b) : ... 2b = 404.86 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.61 b/a = 0.24 Uncertainty : 0.01 0.01 Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 52 deg [J2000] 52 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 : 004733.1 -251718. (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 474- G 029 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.84 2a = 415.10 arcsec Uncertainty : 0.04 40.00 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 : 004733.1 -251718. (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 474- G 029 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 2.45 2a = 1691.00 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 : 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 : 004733.1 -251718. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 18 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 0253 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 630.2 arcsec 2a = 1260.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 302.50 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.240 b/a = 0.24 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 51.0 deg [J2000] 51 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 : 11.888060 -25.288799 (J2000) Qualifiers : From new, raw data NED Comment :
No. 19 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 0253 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 921.8 arcsec 2a = 1843.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 442.46 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.240 b/a = 0.24 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 51.0 deg [J2000] 51 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 : 11.888060 -25.288799 (J2000) Qualifiers : From new, raw data NED Comment :

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