NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-21 T08:53:47 PDT
Help | Comment | NED Home

Diameter data point(s) for object SDSS J123708.67+091618.2

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 r (SDSS Isophotal)
2007SDSS6.C...0000:
2.19 (a) arcsec 1.59 arcsec ... ... ... ... 127.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 4.38 ... 0.73 0.27 0.31 43 128
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.67 (a) arcsec ... ... ... 0.087 ... ... ... ... 4.77E+14 1.34 0.17 ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0237 (a) arcsec ... ... 0.393 (b/a) 0.227 ... ... 133.6
[J2000]
... 4.77E+14 0.05 0.45 0.39 0.61 0.73 67 134
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0347 (a) arcsec ... ... 0.382 (b/a) 1.763 ... ... 133.6
[J2000]
... 4.77E+14 0.07 3.53 0.38 0.62 0.75 68 134
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J123708.67+091618.2      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 2.19       arcsec               2a = 4.38 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       1.59 arcsec               2b = 3.18 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.73
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.27
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.31
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 43 deg
Position Angle [Equinox]      :  127.9 deg [J2000]                  128 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          : 189.2861356268  9.2717463969    (J2000)
Qualifiers                    : From new, raw data; DIA_MAJ or DIA_MIN modified from
                               published data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123708.67+091618.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.67 arcsec 2a = 1.34 arcsec Uncertainty : 0.087 arcsec 0.17 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 : 189.2861356268 9.2717463969 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123708.67+091618.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0237 arcsec 2a = 0.05 arcsec Uncertainty : 0.227 arcsec 0.45 arcsec Minor Axis (2b) : ... 2b = 0.02 arcsec Uncertainty : ... 29.49 Axis Ratio : b/a = 0.393 b/a = 0.39 Uncertainty : 64.946 64.95 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 133.6 deg [J2000] 134 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 : 189.2861356268 9.2717463969 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123708.67+091618.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0347 arcsec 2a = 0.07 arcsec Uncertainty : 1.763 arcsec 3.53 arcsec Minor Axis (2b) : ... 2b = 0.03 arcsec Uncertainty : ... 215.74 Axis Ratio : b/a = 0.382 b/a = 0.38 Uncertainty : 61.169 61.17 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] : 133.6 deg [J2000] 134 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 : 189.2861356268 9.2717463969 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

Back to NED Home