NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-17 T16:58:29 PDT
Help | Comment | NED Home

Diameter data point(s) for object SDSS J093455.61+170252.4

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:
1.68 (a) arcsec 1.20 arcsec ... ... ... ... 102.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 3.36 ... 0.71 0.29 0.32 44 102
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.46 (a) arcsec ... ... ... 0.271 ... ... ... ... 4.77E+14 0.93 0.54 ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0271 (a) arcsec ... ... 0.342 (b/a) 0.034 ... ... 148.6
[J2000]
... 4.77E+14 0.05 0.07 0.34 0.66 0.79 70 149
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0418 (a) arcsec ... ... 0.437 (b/a) 0.431 ... ... 148.6
[J2000]
... 4.77E+14 0.08 0.86 0.44 0.56 0.68 64 149
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J093455.61+170252.4      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 1.68       arcsec               2a = 3.36 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       1.20 arcsec               2b = 2.40 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.71
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.29
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.32
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 44 deg
Position Angle [Equinox]      :  102.3 deg [J2000]                  102 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          : 143.7317274813  17.0478983442    (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 J093455.61+170252.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.46 arcsec 2a = 0.93 arcsec Uncertainty : 0.271 arcsec 0.54 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 : 143.7317274813 17.0478983442 (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 J093455.61+170252.4 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0271 arcsec 2a = 0.05 arcsec Uncertainty : 0.034 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 0.02 arcsec Uncertainty : ... 4.58 Axis Ratio : b/a = 0.342 b/a = 0.34 Uncertainty : 66.344 66.34 Ellipticity : ... 1 - b/a = 0.66 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.79 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : 148.6 deg [J2000] 149 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 : 143.7317274813 17.0478983442 (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 J093455.61+170252.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0418 arcsec 2a = 0.08 arcsec Uncertainty : 0.431 arcsec 0.86 arcsec Minor Axis (2b) : ... 2b = 0.04 arcsec Uncertainty : ... 23.77 Axis Ratio : b/a = 0.437 b/a = 0.44 Uncertainty : 27.545 27.55 Ellipticity : ... 1 - b/a = 0.56 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.68 Uncertainty : ... ... Cos-1(b/a) : ... 64 deg Position Angle [Equinox] : 148.6 deg [J2000] 149 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 : 143.7317274813 17.0478983442 (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