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Date and Time of the Query: 2019-03-22 T11:55:11 PDT
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Diameter data point(s) for object NGC 2841 UB01

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)
2004SDSS2.C...0000:
2.09 (a) arcsec 1.97 arcsec ... ... ... ... 113.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 4.18 ... 0.94 0.06 0.06 19 114
[J2000]
2 r (SDSS Petrosian)
2004SDSS2.C...0000:
0.51 (a) arcsec ... ... ... 0.01 ... ... ... ... 4.77E+14 1.02 0.02 ... ... ... ... ...
3 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
0.00 (a) arcsec ... ... 0.578 (b/a) 0.01 ... ... 34.1
[J2000]
... 4.77E+14 0.00 0.02 0.58 0.42 0.50 55 34
[J2000]
4 r (SDSS Exponential)
2004SDSS2.C...0000:
0.00 (a) arcsec ... ... 0.559 (b/a) 0.02 ... ... 34.2
[J2000]
... 4.77E+14 0.00 0.04 0.56 0.44 0.52 56 34
[J2000]
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
2.09 (a) arcsec 1.97 arcsec ... ... ... ... 113.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 4.18 ... 0.94 0.06 0.06 19 114
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.51 (a) arcsec ... ... ... 0.012 ... ... ... ... 4.77E+14 1.02 0.02 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0000 (a) arcsec ... ... 0.578 (b/a) 0.008 ... ... 34.1
[J2000]
... 4.77E+14 0.00 0.01 0.58 0.42 0.50 55 34
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0002 (a) arcsec ... ... 0.559 (b/a) 0.019 ... ... 34.2
[J2000]
... 4.77E+14 0.00 0.04 0.56 0.44 0.52 56 34
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2004SDSS2.C...0000:
Published Object Name         : SDSS J092011.84+510957.1      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 2.09       arcsec               2a = 4.18 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =    1.97    arcsec               2b = 3.94 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.94
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.06
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.06
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 19 deg
Position Angle [Equinox]      :  113.7 deg [J2000]                  114 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          : 140.0493164     51.1658516    (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J092011.84+510957.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.51 arcsec 2a = 1.02 arcsec Uncertainty : 0.01 arcsec 0.02 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 : 140.0493164 51.1658516 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J092011.84+510957.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 0.00 arcsec 2a = 0.00 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 0.00 arcsec Uncertainty : ... 0.27 Axis Ratio : b/a = 0.578 b/a = 0.58 Uncertainty : 13.415 13.41 Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 34.1 deg [J2000] 34 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 : 140.0493164 51.1658516 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J092011.84+510957.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.00 arcsec 2a = 0.00 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 0.00 arcsec Uncertainty : ... 0.57 Axis Ratio : b/a = 0.559 b/a = 0.56 Uncertainty : 14.256 14.26 Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 34.2 deg [J2000] 34 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 : 140.0493164 51.1658516 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092011.83+510957.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 2.09 arcsec 2a = 4.18 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 1.97 arcsec 2b = 3.94 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.94 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 19 deg Position Angle [Equinox] : 113.7 deg [J2000] 114 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 : 140.0493143273 51.1658502766 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092011.83+510957.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.51 arcsec 2a = 1.02 arcsec Uncertainty : 0.012 arcsec 0.02 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 : 140.0493143273 51.1658502766 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092011.83+510957.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0000 arcsec 2a = 0.00 arcsec Uncertainty : 0.008 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.00 arcsec Uncertainty : ... 0.20 Axis Ratio : b/a = 0.578 b/a = 0.58 Uncertainty : 13.415 13.41 Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 34.1 deg [J2000] 34 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 : 140.0493143273 51.1658502766 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092011.83+510957.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0002 arcsec 2a = 0.00 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 0.00 arcsec Uncertainty : ... 0.56 Axis Ratio : b/a = 0.559 b/a = 0.56 Uncertainty : 14.256 14.26 Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 34.2 deg [J2000] 34 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 : 140.0493143273 51.1658502766 (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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