NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-25 T01:42:24 PDT
Help | Comment | NED Home

Diameter data point(s) for object SDSS J111656.72+180441.5

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 Petrosian)
2007SDSS6.C...0000:
17.33 (a) arcsec ... ... ... ... ... ... ... ... 4.77E+14 34.67 ... ... ... ... ... ...
2 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7481 (a) arcsec ... ... 0.260 (b/a) 2.539 ... ... 115.9
[J2000]
... 4.77E+14 23.50 5.08 0.26 0.74 0.87 75 116
[J2000]
3 r (SDSS Exponential)
2007SDSS6.C...0000:
12.1497 (a) arcsec ... ... 0.217 (b/a) 3.723 ... ... 113.8
[J2000]
... 4.77E+14 24.30 7.45 0.22 0.78 0.91 77 114
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J111656.72+180441.5      
Frequency Targeted            : r (SDSS Petrosian)            
Major Axis (2a)               : a = 17.33      arcsec               2a = 34.67 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          : 169.2363700898  18.0781986547    (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 J111656.72+180441.5 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7481 arcsec 2a = 23.50 arcsec Uncertainty : 2.539 arcsec 5.08 arcsec Minor Axis (2b) : ... 2b = 6.11 arcsec Uncertainty : ... 0.59 Axis Ratio : b/a = 0.260 b/a = 0.26 Uncertainty : 0.116 0.12 Ellipticity : ... 1 - b/a = 0.74 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.87 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : 115.9 deg [J2000] 116 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 : 169.2363700898 18.0781986547 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J111656.72+180441.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 12.1497 arcsec 2a = 24.30 arcsec Uncertainty : 3.723 arcsec 7.45 arcsec Minor Axis (2b) : ... 2b = 5.27 arcsec Uncertainty : ... 0.54 Axis Ratio : b/a = 0.217 b/a = 0.22 Uncertainty : 0.072 0.07 Ellipticity : ... 1 - b/a = 0.78 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.91 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 113.8 deg [J2000] 114 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 : 169.2363700898 18.0781986547 (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