NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-25 T15:30:24 PDT
Help | Comment | NED Home

Diameter data point(s) for object SDSS J104030.20+313101.8

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:
2.20 (a) arcsec 0.84 arcsec ... ... ... ... 176.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 4.40 ... 0.38 0.62 0.75 68 177
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
1.18 (a) arcsec ... ... ... ... ... ... ... ... 4.77E+14 2.35 ... ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.9211 (a) arcsec ... ... 0.550 (b/a) 1.257 ... ... 17.8
[J2000]
... 4.77E+14 1.84 2.52 0.55 0.45 0.54 57 18
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.4932 (a) arcsec ... ... 0.493 (b/a) 0.330 ... ... 18.6
[J2000]
... 4.77E+14 0.99 0.66 0.49 0.51 0.61 60 19
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J104030.20+313101.8      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 2.20       arcsec               2a = 4.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       0.84 arcsec               2b = 1.68 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]      :  176.7 deg [J2000]                  177 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          : 160.1258625679  31.5171862136    (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 J104030.20+313101.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 1.18 arcsec 2a = 2.35 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 : ... 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 : 160.1258625679 31.5171862136 (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 J104030.20+313101.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.9211 arcsec 2a = 1.84 arcsec Uncertainty : 1.257 arcsec 2.52 arcsec Minor Axis (2b) : ... 2b = 1.01 arcsec Uncertainty : ... 2.07 Axis Ratio : b/a = 0.550 b/a = 0.55 Uncertainty : 0.825 0.82 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] : 17.8 deg [J2000] 18 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 : 160.1258625679 31.5171862136 (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 J104030.20+313101.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.4932 arcsec 2a = 0.99 arcsec Uncertainty : 0.330 arcsec 0.66 arcsec Minor Axis (2b) : ... 2b = 0.49 arcsec Uncertainty : ... 0.41 Axis Ratio : b/a = 0.493 b/a = 0.49 Uncertainty : 0.621 0.62 Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.61 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 18.6 deg [J2000] 19 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 : 160.1258625679 31.5171862136 (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