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Date and Time of the Query: 2022-01-27 T01:49:30 PST
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Diameter data point(s) for object NGC 4480

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
1973UGC...C...0000N
2.50 arcmin 1.20 arcmin ... ... ... ... 175
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 150.00 ... 0.48 0.52 0.63 61 175
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
36.6 (a) arcsec ... ... 0.680 (b/a) ... ... ... -5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 73.20 ... 0.68 0.32 0.37 47 175
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
59.9 (a) arcsec ... ... 0.680 (b/a) ... ... ... -5
[J2000]
Diameter for "total" magnitude 1.38E+14 119.80 ... 0.68 0.32 0.37 47 175
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
1.20 arcmin 0.60 arcmin ... ... ... ... ... ... 7.40E+14 72.00 ... 0.50 0.50 0.60 60 ...
5 POSS1 103a-O
1963MCG3..C...0000V
2.40 arcmin 1.00 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 144.00 ... 0.42 0.58 0.70 65 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.36 log(2a) + 1 ... ... 0.29
log(a/b)
0.03 ... ... 175
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 137.50 9.80 0.51 0.49 0.58 59 175
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.36 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 137.50 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2004SDSS2.C...0000:
65.92 (a) arcsec 29.40 arcsec ... ... ... ... 177.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 131.84 ... 0.45 0.55 0.67 64 178
[J2000]
9 r (SDSS Petrosian)
2004SDSS2.C...0000:
14.84 (a) arcsec ... ... ... 0.48 ... ... ... ... 4.77E+14 29.69 0.96 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
11.75 (a) arcsec ... ... 0.639 (b/a) 0.04 ... ... 175.9
[J2000]
... 4.77E+14 23.50 0.07 0.64 0.36 0.42 50 176
[J2000]
11 r (SDSS Exponential)
2004SDSS2.C...0000:
8.36 (a) arcsec ... ... 0.526 (b/a) 0.03 ... ... 176.3
[J2000]
... 4.77E+14 16.72 0.06 0.53 0.47 0.57 58 176
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
65.92 (a) arcsec 29.40 arcsec ... ... ... ... 177.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 131.84 ... 0.45 0.55 0.67 64 178
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
14.84 (a) arcsec ... ... ... 0.478 ... ... ... ... 4.77E+14 29.69 0.96 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7506 (a) arcsec ... ... 0.639 (b/a) 0.037 ... ... 175.9
[J2000]
... 4.77E+14 23.50 0.07 0.64 0.36 0.42 50 176
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
8.3605 (a) arcsec ... ... 0.526 (b/a) 0.031 ... ... 176.3
[J2000]
... 4.77E+14 16.72 0.06 0.53 0.47 0.57 58 176
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07647                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.50       arcmin                   2a = 150.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.20      arcmin              2b = 72.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.48
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.52
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.63
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 61 deg
Position Angle [Equinox]      : 175    deg [B1950]                  175 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : About 25.0 B-mag arcsec^-2^   
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          : 122754.         +043100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12302678+0414472 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 36.6 arcsec 2a = 73.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 49.78 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.680 b/a = 0.68 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.32 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.37 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : -5 deg [J2000] 175 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 : 187.611603 4.246505 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12302678+0414472 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 59.9 arcsec 2a = 119.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 81.46 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.680 b/a = 0.68 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.32 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.37 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : -5 deg [J2000] 175 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 : 187.611603 4.246505 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-087 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.20 arcmin 2a = 72.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.60 arcmin 2b = 36.00 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 : ... 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 : 122754 +0431 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-087 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.40 arcmin 2a = 144.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.00 arcmin 2b = 60.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.42 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.58 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.70 Uncertainty : ... ... Cos-1(b/a) : ... 65 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 : 122754 +0431 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07647 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.36 2a = 137.50 arcsec Uncertainty : 0.03 9.80 arcsec Minor Axis (2b) : ... 2b = 70.54 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] : 175 deg [J2000] 175 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 : 123026.5 +041453. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07647 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.36 2a = 137.50 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 : 123026.5 +041453. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J123026.78+041447.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 65.92 arcsec 2a = 131.84 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 29.40 arcsec 2b = 58.80 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.67 Uncertainty : ... ... Cos-1(b/a) : ... 64 deg Position Angle [Equinox] : 177.6 deg [J2000] 178 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 mag arcsec^-2^ Frequency : 6290 A 4.77E+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 : 187.6115875 4.2465701 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J123026.78+041447.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 14.84 arcsec 2a = 29.69 arcsec Uncertainty : 0.48 arcsec 0.96 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Profile fitting to image Measured Quantity : See comments Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115875 4.2465701 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J123026.78+041447.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.04 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 15.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.639 b/a = 0.64 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.36 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.42 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 175.9 deg [J2000] 176 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115875 4.2465701 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J123026.78+041447.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.36 arcsec 2a = 16.72 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 8.79 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.526 b/a = 0.53 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.57 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 176.3 deg [J2000] 176 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115875 4.2465701 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123026.78+041447.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 65.92 arcsec 2a = 131.84 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 29.40 arcsec 2b = 58.80 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.67 Uncertainty : ... ... Cos-1(b/a) : ... 64 deg Position Angle [Equinox] : 177.6 deg [J2000] 178 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 mag arcsec^-2^ Frequency : 6290 A 4.77E+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 : 187.6115938722 4.2465701822 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123026.78+041447.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 14.84 arcsec 2a = 29.69 arcsec Uncertainty : 0.478 arcsec 0.96 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Profile fitting to image Measured Quantity : See comments Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115938722 4.2465701822 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123026.78+041447.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7506 arcsec 2a = 23.50 arcsec Uncertainty : 0.037 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 15.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.639 b/a = 0.64 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.36 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.42 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 175.9 deg [J2000] 176 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115938722 4.2465701822 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 15 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123026.78+041447.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.3605 arcsec 2a = 16.72 arcsec Uncertainty : 0.031 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 8.80 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.526 b/a = 0.53 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.57 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 176.3 deg [J2000] 176 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+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 : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 187.6115938722 4.2465701822 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

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