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Date and Time of the Query: 2019-04-18 T13:52:43 PDT
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Diameter data point(s) for object NGC 5486

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
1.50 arcmin 0.90 arcmin ... ... ... ... 80
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 90.00 ... 0.60 0.40 0.47 53 80
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
15.9 (a) arcsec ... ... 0.660 (b/a) ... ... ... 40
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 31.80 ... 0.66 0.34 0.39 49 40
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
24.3 (a) arcsec ... ... 0.660 (b/a) ... ... ... 40
[J2000]
Diameter for "total" magnitude 1.38E+14 48.60 ... 0.66 0.34 0.39 49 40
[J2000]
4 POSS1 103a-O
1962MCG1..C...0000V
0.30 arcmin 0.30 arcmin ... ... ... ... ... High surface brightness 7.40E+14 18.00 ... 1.00 0.00 0.00 0 ...
5 POSS1 103a-O
1962MCG1..C...0000V
1.50 arcmin 1.00 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 90.00 ... 0.67 0.33 0.38 48 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.27 log(2a) + 1 ... ... 0.20
log(a/b)
0.04 ... ... 80
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 111.70 10.80 0.63 0.37 0.43 51 80
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.27 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 111.70 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2005SDSS4.C...0000:
51.41 (a) arcsec 28.50 arcsec ... ... ... ... 71.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 102.82 ... 0.55 0.45 0.53 56 72
[J2000]
9 r (SDSS Petrosian)
2005SDSS4.C...0000:
16.02 (a) arcsec ... ... ... 1.07 ... ... ... ... 4.77E+14 32.04 2.14 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
11.75 (a) arcsec ... ... 0.998 (b/a) 0.14 ... ... 79.2
[J2000]
... 4.77E+14 23.50 0.29 1.00 0.00 0.00 4 79
[J2000]
11 r (SDSS Exponential)
2005SDSS4.C...0000:
7.10 (a) arcsec ... ... 0.669 (b/a) 0.04 ... ... 69.5
[J2000]
... 4.77E+14 14.20 0.07 0.67 0.33 0.38 48 70
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
51.41 (a) arcsec 28.50 arcsec ... ... ... ... 71.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 102.82 ... 0.55 0.45 0.53 56 72
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
16.02 (a) arcsec ... ... ... 1.070 ... ... ... ... 4.77E+14 32.04 2.14 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7502 (a) arcsec ... ... 0.998 (b/a) 0.144 ... ... 79.2
[J2000]
... 4.77E+14 23.50 0.29 1.00 0.00 0.00 4 79
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
7.0991 (a) arcsec ... ... 0.669 (b/a) 0.037 ... ... 69.5
[J2000]
... 4.77E+14 14.20 0.07 0.67 0.33 0.38 48 70
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 09036                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.50       arcmin                   2a = 90.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.90      arcmin              2b = 54.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 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]      :  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          : 140542.         +552000.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J14072502+5506105 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 15.9 arcsec 2a = 31.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 20.99 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.660 b/a = 0.66 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.34 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.39 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 40 deg [J2000] 40 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 : 211.854187 55.102966 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J14072502+5506105 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 24.3 arcsec 2a = 48.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 32.08 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.660 b/a = 0.66 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.34 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.39 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 40 deg [J2000] 40 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 : 211.854187 55.102966 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +09-23-038 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.30 arcmin 2a = 18.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 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 : 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 : 140542 +5522 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +09-23-038 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.50 arcmin 2a = 90.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.00 arcmin 2b = 60.00 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 : 140542 +5522 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 09036 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.27 2a = 111.70 arcsec Uncertainty : 0.04 10.80 arcsec Minor Axis (2b) : ... 2b = 70.48 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.20 b/a = 0.63 Uncertainty : 0.04 0.06 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] : 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 : 140725.7 +550612. (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 09036 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.27 2a = 111.70 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 : 140725.7 +550612. (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 J140724.97+550611.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 51.41 arcsec 2a = 102.82 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 28.50 arcsec 2b = 57.00 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] = 0.53 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 71.5 deg [J2000] 72 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 : 211.8540344 55.1030731 (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 J140724.97+550611.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.02 arcsec 2a = 32.04 arcsec Uncertainty : 1.07 arcsec 2.14 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 : 211.8540344 55.1030731 (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 J140724.97+550611.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.14 arcsec 0.29 arcsec Minor Axis (2b) : ... 2b = 23.45 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.998 b/a = 1.00 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 4 deg Position Angle [Equinox] : 79.2 deg [J2000] 79 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 : 211.8540344 55.1030731 (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 J140724.97+550611.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.10 arcsec 2a = 14.20 arcsec Uncertainty : 0.04 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 9.50 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.669 b/a = 0.67 Uncertainty : 0.004 0.00 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] : 69.5 deg [J2000] 70 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 : 211.8540344 55.1030731 (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 J140724.96+550611.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 51.41 arcsec 2a = 102.82 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 28.50 arcsec 2b = 57.00 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] = 0.53 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 71.5 deg [J2000] 72 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 : 211.8540205570 55.1030712327 (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 J140724.96+550611.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.02 arcsec 2a = 32.04 arcsec Uncertainty : 1.070 arcsec 2.14 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 : 211.8540205570 55.1030712327 (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 J140724.96+550611.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7502 arcsec 2a = 23.50 arcsec Uncertainty : 0.144 arcsec 0.29 arcsec Minor Axis (2b) : ... 2b = 23.45 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.998 b/a = 1.00 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 4 deg Position Angle [Equinox] : 79.2 deg [J2000] 79 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 : 211.8540205570 55.1030712327 (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 J140724.96+550611.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.0991 arcsec 2a = 14.20 arcsec Uncertainty : 0.037 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 9.50 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.669 b/a = 0.67 Uncertainty : 0.004 0.00 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] : 69.5 deg [J2000] 70 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 : 211.8540205570 55.1030712327 (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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