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Date and Time of the Query: 2019-07-22 T05:36:14 PDT
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Diameter data point(s) for object NGC 4029

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
1.20 arcmin 0.70 arcmin ... ... ... ... 150
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 72.00 ... 0.58 0.42 0.49 54 150
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
24.1 (a) arcsec ... ... 0.600 (b/a) ... ... ... 0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 48.20 ... 0.60 0.40 0.47 53 0
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
45.7 (a) arcsec ... ... 0.600 (b/a) ... ... ... 0
[J2000]
Diameter for "total" magnitude 1.38E+14 91.30 ... 0.60 0.40 0.47 53 0
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
0.40 arcmin 0.20 arcmin ... ... ... ... ... High surface brightness 7.40E+14 24.00 ... 0.50 0.50 0.60 60 ...
5 POSS1 103a-O
1963MCG3..C...0000V
1.20 arcmin 0.80 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 72.00 ... 0.67 0.33 0.38 48 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.08 log(2a) + 1 ... ... 0.20
log(a/b)
0.06 ... ... 150
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 72.10 10.70 0.63 0.37 0.43 51 150
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.08 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 72.10 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2005SDSS4.C...0000:
41.26 (a) arcsec 25.39 arcsec ... ... ... ... 146.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 82.52 ... 0.61 0.39 0.45 52 147
[J2000]
9 r (SDSS Petrosian)
2005SDSS4.C...0000:
12.81 (a) arcsec ... ... ... 0.75 ... ... ... ... 4.77E+14 25.62 1.50 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
3.45 (a) arcsec ... ... 0.615 (b/a) 0.02 ... ... 166.0
[J2000]
... 4.77E+14 6.90 0.04 0.61 0.39 0.45 52 166
[J2000]
11 r (SDSS Exponential)
2005SDSS4.C...0000:
3.41 (a) arcsec ... ... 0.517 (b/a) 0.01 ... ... 168.0
[J2000]
... 4.77E+14 6.82 0.03 0.52 0.48 0.58 59 168
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
41.26 (a) arcsec 25.39 arcsec ... ... ... ... 146.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 82.52 ... 0.61 0.39 0.45 52 147
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
12.81 (a) arcsec ... ... ... 0.752 ... ... ... ... 4.77E+14 25.62 1.50 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.4514 (a) arcsec ... ... 0.615 (b/a) 0.019 ... ... 166.0
[J2000]
... 4.77E+14 6.90 0.04 0.61 0.39 0.45 52 166
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
3.4107 (a) arcsec ... ... 0.517 (b/a) 0.013 ... ... 168.0
[J2000]
... 4.77E+14 6.82 0.03 0.52 0.48 0.58 59 168
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 06990                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.20       arcmin                   2a = 72.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.70      arcmin              2b = 42.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.58
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.42
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.49
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 54 deg
Position Angle [Equinox]      : 150    deg [B1950]                  150 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          : 115730.         +082800.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12000318+0810536 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 24.1 arcsec 2a = 48.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 28.92 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.600 b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : 0 deg [J2000] 0 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 : 180.013245 8.181646 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12000318+0810536 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 45.7 arcsec 2a = 91.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 54.78 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.600 b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : 0 deg [J2000] 0 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 : 180.013245 8.181646 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-31-008 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 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 : 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 : 115730 +0828 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-31-008 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.20 arcmin 2a = 72.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.80 arcmin 2b = 48.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Moderate 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 : 115730 +0828 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 06990 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.08 2a = 72.10 arcsec Uncertainty : 0.06 10.70 arcsec Minor Axis (2b) : ... 2b = 45.50 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.20 b/a = 0.63 Uncertainty : 0.05 0.08 Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 150 deg [J2000] 150 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 : 120000.0 +081100. (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 06990 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.08 2a = 72.10 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 : 120000.0 +081100. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J120003.17+081054.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 41.26 arcsec 2a = 82.52 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 25.39 arcsec 2b = 50.78 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.61 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.39 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.45 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : 146.7 deg [J2000] 147 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 : 180.0131989 8.1817217 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J120003.17+081054.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 12.81 arcsec 2a = 25.62 arcsec Uncertainty : 0.75 arcsec 1.50 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 : 180.0131989 8.1817217 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J120003.17+081054.2 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 3.45 arcsec 2a = 6.90 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 4.24 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.615 b/a = 0.61 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.39 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.45 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : 166.0 deg [J2000] 166 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 : 180.0131989 8.1817217 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J120003.17+081054.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.41 arcsec 2a = 6.82 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.53 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.517 b/a = 0.52 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.48 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 168.0 deg [J2000] 168 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 : 180.0131989 8.1817217 (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 J120003.16+081054.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 41.26 arcsec 2a = 82.52 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 25.39 arcsec 2b = 50.78 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.61 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.39 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.45 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : 146.7 deg [J2000] 147 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 : 180.0131958065 8.1817217615 (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 J120003.16+081054.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 12.81 arcsec 2a = 25.62 arcsec Uncertainty : 0.752 arcsec 1.50 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 : 180.0131958065 8.1817217615 (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 J120003.16+081054.1 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.4514 arcsec 2a = 6.90 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 4.25 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.615 b/a = 0.61 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.39 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.45 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : 166.0 deg [J2000] 166 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 : 180.0131958065 8.1817217615 (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 J120003.16+081054.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.4107 arcsec 2a = 6.82 arcsec Uncertainty : 0.013 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.53 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.517 b/a = 0.52 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.48 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.58 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 168.0 deg [J2000] 168 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 : 180.0131958065 8.1817217615 (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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