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Date and Time of the Query: 2019-06-25 T14:39:59 PDT
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Diameter data point(s) for object IC 4054

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:
0.46 (a) arcsec ... ... ... 0.003 ... ... ... ... 4.77E+14 0.93 0.01 ... ... ... ... ...
2 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0098 (a) arcsec ... ... 0.937 (b/a) 0.008 ... ... 7.8
[J2000]
... 4.77E+14 0.02 0.01 0.94 0.06 0.06 20 8
[J2000]
3 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0118 (a) arcsec ... ... 0.949 (b/a) 0.008 ... ... 9.1
[J2000]
... 4.77E+14 0.02 0.02 0.95 0.05 0.05 18 9
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J130101.36+225418.0      
Frequency Targeted            : r (SDSS Petrosian)            
Major Axis (2a)               : a = 0.46       arcsec               2a = 0.93 arcsec
Uncertainty                   :      0.003  arcsec                  0.01 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          : 195.2556806736  22.9050206297    (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 J130101.36+225418.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0098 arcsec 2a = 0.02 arcsec Uncertainty : 0.008 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.937 b/a = 0.94 Uncertainty : 0.308 0.31 Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 20 deg Position Angle [Equinox] : 7.8 deg [J2000] 8 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 : 195.2556806736 22.9050206297 (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 J130101.36+225418.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0118 arcsec 2a = 0.02 arcsec Uncertainty : 0.008 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 0.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.949 b/a = 0.95 Uncertainty : 0.259 0.26 Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.05 Uncertainty : ... ... Cos-1(b/a) : ... 18 deg Position Angle [Equinox] : 9.1 deg [J2000] 9 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 : 195.2556806736 22.9050206297 (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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