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Date and Time of the Query: 2018-12-16 T01:17:48 PST
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Diameter data point(s) for object NGC 4102

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
3.20 arcmin 1.90 arcmin ... ... ... ... 38
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 192.00 ... 0.59 0.41 0.48 54 38
[J2000]
2 POSS1 103a-O
1962MCG1..C...0000V
2.00 arcmin 1.10 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 120.00 ... 0.55 0.45 0.54 57 ...
3 POSS1 103a-O
1962MCG1..C...0000V
3.00 arcmin 1.50 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 180.00 ... 0.50 0.50 0.60 60 ...
4 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.48 log(2a) + 1 ... ... 0.24
log(a/b)
0.03 ... ... 38
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 181.20 13.00 0.57 0.43 0.50 55 38
[J2000]
5 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.48 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 181.20 ... ... ... ... ... ...
6 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
68.6 (a) arcsec ... ... 0.550 (b/a) ... ... ... 38.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 137.20 ... 0.55 0.45 0.54 57 38
[J2000]
7 K_s (LGA/2MASS "total")
2003AJ....125..525J
105.8 (a) arcsec ... ... 0.550 (b/a) ... ... ... 38.0
[J2000]
Diameter for "total" magnitude 1.38E+14 211.60 ... 0.55 0.45 0.54 57 38
[J2000]
8 r (SDSS Isophotal)
2004SDSS2.C...0000:
88.20 (a) arcsec 31.75 arcsec ... ... ... ... 39.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 176.40 ... 0.36 0.64 0.77 69 39
[J2000]
9 r (SDSS Petrosian)
2004SDSS2.C...0000:
20.32 (a) arcsec ... ... ... 1.38 ... ... ... ... 4.77E+14 40.65 2.76 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
11.75 (a) arcsec ... ... 0.940 (b/a) 0.07 ... ... 95.8
[J2000]
... 4.77E+14 23.50 0.15 0.94 0.06 0.06 20 96
[J2000]
11 r (SDSS Exponential)
2004SDSS2.C...0000:
15.77 (a) arcsec ... ... 0.307 (b/a) 0.07 ... ... 96.4
[J2000]
... 4.77E+14 31.53 0.14 0.31 0.69 0.83 72 96
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
97.43 (a) arcsec 36.69 arcsec ... ... ... ... 38.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 194.86 ... 0.38 0.62 0.75 68 39
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
15.81 (a) arcsec ... ... ... 1.136 ... ... ... ... 4.77E+14 31.62 2.27 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.8082 (a) arcsec ... ... 0.600 (b/a) 0.019 ... ... 46.5
[J2000]
... 4.77E+14 9.62 0.04 0.60 0.40 0.47 53 47
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
4.2073 (a) arcsec ... ... 0.569 (b/a) 0.010 ... ... 54.0
[J2000]
... 4.77E+14 8.41 0.02 0.57 0.43 0.51 55 54
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07096                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 3.20       arcmin                   2a = 192.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.90      arcmin              2b = 114.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.59
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.41
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.48
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 54 deg
Position Angle [Equinox]      :  38    deg [B1950]                  38 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          : 120348.         +530000.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +09-20-094 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.00 arcmin 2a = 120.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.10 arcmin 2b = 66.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.55 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 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 : 120354 +5259 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +09-20-094 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 3.00 arcmin 2a = 180.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.50 arcmin 2b = 90.00 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 : Low 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 : 120354 +5259 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07096 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.48 2a = 181.20 arcsec Uncertainty : 0.03 13.00 arcsec Minor Axis (2b) : ... 2b = 104.19 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.24 b/a = 0.57 Uncertainty : 0.03 0.04 Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 38 deg [J2000] 38 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 : 120623.4 +524241. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07096 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.48 2a = 181.20 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 : 120623.4 +524241. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 6 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 4102 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 68.6 arcsec 2a = 137.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 75.46 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.550 b/a = 0.55 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 38.0 deg [J2000] 38 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 : 181.596313 52.710949 (J2000) Qualifiers : From new, raw data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : NGC 4102 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 105.8 arcsec 2a = 211.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 116.38 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.550 b/a = 0.55 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 38.0 deg [J2000] 38 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 : 181.596313 52.710949 (J2000) Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J120623.74+524237.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 88.20 arcsec 2a = 176.40 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 31.75 arcsec 2b = 63.50 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.36 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.64 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.77 Uncertainty : ... ... Cos-1(b/a) : ... 69 deg Position Angle [Equinox] : 39.2 deg [J2000] 39 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 : 181.5989075 52.7105293 (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 J120623.74+524237.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 20.32 arcsec 2a = 40.65 arcsec Uncertainty : 1.38 arcsec 2.76 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 : 181.5989075 52.7105293 (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 J120623.74+524237.9 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.07 arcsec 0.15 arcsec Minor Axis (2b) : ... 2b = 22.09 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.940 b/a = 0.94 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 20 deg Position Angle [Equinox] : 95.8 deg [J2000] 96 deg [J2000] Uncertainty : 0.0 0 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 : 181.5989075 52.7105293 (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 J120623.74+524237.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 15.77 arcsec 2a = 31.53 arcsec Uncertainty : 0.07 arcsec 0.14 arcsec Minor Axis (2b) : ... 2b = 9.68 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.307 b/a = 0.31 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.69 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.83 Uncertainty : ... ... Cos-1(b/a) : ... 72 deg Position Angle [Equinox] : 96.4 deg [J2000] 96 deg [J2000] Uncertainty : 0.0 0 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 : 181.5989075 52.7105293 (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 J120623.00+524239.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 97.43 arcsec 2a = 194.86 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 36.69 arcsec 2b = 73.38 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : 38.8 deg [J2000] 39 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 : 181.5958540121 52.7110403161 (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 J120623.00+524239.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 15.81 arcsec 2a = 31.62 arcsec Uncertainty : 1.136 arcsec 2.27 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 : 181.5958540121 52.7110403161 (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 J120623.00+524239.7 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.8082 arcsec 2a = 9.62 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 5.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.600 b/a = 0.60 Uncertainty : 0.002 0.00 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] : 46.5 deg [J2000] 47 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 : 181.5958540121 52.7110403161 (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 J120623.00+524239.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.2073 arcsec 2a = 8.41 arcsec Uncertainty : 0.010 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.79 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.569 b/a = 0.57 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.51 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 54.0 deg [J2000] 54 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 : 181.5958540121 52.7110403161 (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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