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Date and Time of the Query: 2019-06-16 T00:34:12 PDT
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Diameter data point(s) for object NGC 4430

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
2.90 arcmin 2.30 arcmin ... ... ... ... 80
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 174.00 ... 0.79 0.21 0.23 38 80
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
44.1 (a) arcsec ... ... 0.560 (b/a) ... ... ... -65
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 88.20 ... 0.56 0.44 0.52 56 115
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
110.3 (a) arcsec ... ... 0.560 (b/a) ... ... ... -65
[J2000]
Diameter for "total" magnitude 1.38E+14 220.70 ... 0.56 0.44 0.52 56 115
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
1.00 arcmin 0.80 arcmin ... ... ... ... ... High surface brightness 7.40E+14 60.00 ... 0.80 0.20 0.22 37 ...
5 POSS1 103a-O
1963MCG3..C...0000V
2.00 arcmin 2.00 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 120.00 ... 1.00 0.00 0.00 0 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.36 log(2a) + 1 ... ... 0.05
log(a/b)
0.03 ... ... 80
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 137.50 9.80 0.89 0.11 0.11 27 80
[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)
2006SDSS5.C...0000:
57.80 (a) arcsec 40.41 arcsec ... ... ... ... 61.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 115.60 ... 0.70 0.30 0.34 46 61
[J2000]
9 r (SDSS Petrosian)
2006SDSS5.C...0000:
16.35 (a) arcsec ... ... ... 0.53 ... ... ... ... 4.77E+14 32.71 1.05 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
11.75 (a) arcsec ... ... 0.930 (b/a) 0.10 ... ... 108.8
[J2000]
... 4.77E+14 23.50 0.21 0.93 0.07 0.07 22 109
[J2000]
11 r (SDSS Exponential)
2006SDSS5.C...0000:
7.47 (a) arcsec ... ... 0.706 (b/a) 0.03 ... ... 108.1
[J2000]
... 4.77E+14 14.95 0.07 0.71 0.29 0.33 45 108
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
57.80 (a) arcsec 40.41 arcsec ... ... ... ... 61.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 115.60 ... 0.70 0.30 0.34 46 61
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
16.35 (a) arcsec ... ... ... 0.527 ... ... ... ... 4.77E+14 32.71 1.05 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7479 (a) arcsec ... ... 0.930 (b/a) 0.104 ... ... 108.8
[J2000]
... 4.77E+14 23.50 0.21 0.93 0.07 0.07 22 109
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
7.4732 (a) arcsec ... ... 0.706 (b/a) 0.033 ... ... 108.1
[J2000]
... 4.77E+14 14.95 0.07 0.71 0.29 0.33 45 108
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07566                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.90       arcmin                   2a = 174.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  2.30      arcmin              2b = 138.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.79
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.21
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.23
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 38 deg
Position Angle [Equinox]      :  80    deg [B1950]                  80 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          : 122454.         +063200.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12272638+0615455 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 44.1 arcsec 2a = 88.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 49.39 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.560 b/a = 0.56 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : -65 deg [J2000] 115 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 : 186.859924 6.262666 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12272638+0615455 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 110.3 arcsec 2a = 220.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 123.59 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.560 b/a = 0.56 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : -65 deg [J2000] 115 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 : 186.859924 6.262666 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-067 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.00 arcmin 2a = 60.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.80 arcmin 2b = 48.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 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 : 122454 +0632 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-067 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.00 arcmin 2a = 120.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.00 arcmin 2b = 120.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 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 : 122454 +0632 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07566 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 = 122.51 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.05 b/a = 0.89 Uncertainty : 0.04 0.09 Ellipticity : ... 1 - b/a = 0.11 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 27 deg Position Angle [Equinox] : 80 deg [J2000] 80 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 : 122726.5 +061547. (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 07566 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 : 122726.5 +061547. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J122726.41+061546.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 57.80 arcsec 2a = 115.60 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 40.41 arcsec 2b = 80.82 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 61.0 deg [J2000] 61 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 : 186.8600311 6.2627707 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122726.41+061546.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.35 arcsec 2a = 32.71 arcsec Uncertainty : 0.53 arcsec 1.05 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 : 186.8600311 6.2627707 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122726.41+061546.0 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.10 arcsec 0.21 arcsec Minor Axis (2b) : ... 2b = 21.86 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.930 b/a = 0.93 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 108.8 deg [J2000] 109 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 : 186.8600311 6.2627707 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122726.41+061546.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.47 arcsec 2a = 14.95 arcsec Uncertainty : 0.03 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 10.55 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.706 b/a = 0.71 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.29 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.33 Uncertainty : ... ... Cos-1(b/a) : ... 45 deg Position Angle [Equinox] : 108.1 deg [J2000] 108 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 : 186.8600311 6.2627707 (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 J122726.40+061545.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 57.80 arcsec 2a = 115.60 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 40.41 arcsec 2b = 80.82 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 61.0 deg [J2000] 61 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 : 186.8600324576 6.2627706575 (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 J122726.40+061545.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.35 arcsec 2a = 32.71 arcsec Uncertainty : 0.527 arcsec 1.05 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 : 186.8600324576 6.2627706575 (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 J122726.40+061545.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7479 arcsec 2a = 23.50 arcsec Uncertainty : 0.104 arcsec 0.21 arcsec Minor Axis (2b) : ... 2b = 21.85 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.930 b/a = 0.93 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 108.8 deg [J2000] 109 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 : 186.8600324576 6.2627706575 (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 J122726.40+061545.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.4732 arcsec 2a = 14.95 arcsec Uncertainty : 0.033 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 10.55 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.706 b/a = 0.71 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.29 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.33 Uncertainty : ... ... Cos-1(b/a) : ... 45 deg Position Angle [Equinox] : 108.1 deg [J2000] 108 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 : 186.8600324576 6.2627706575 (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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