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Date and Time of the Query: 2019-07-18 T11:17:52 PDT
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Diameter data point(s) for object IC 2472

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 K_s (2MASS isophotal)
20032MASX.C.......:
19.2 (a) arcsec ... ... 0.380 (b/a) ... ... ... 10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 38.40 ... 0.38 0.62 0.75 68 10
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
38.1 (a) arcsec ... ... 0.380 (b/a) ... ... ... 10
[J2000]
Diameter for "total" magnitude 1.38E+14 76.10 ... 0.38 0.62 0.75 68 10
[J2000]
3 r (SDSS Isophotal)
2007SDSS6.C...0000:
21.47 (a) arcsec 19.51 arcsec ... ... ... ... 168.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 42.94 ... 0.91 0.09 0.10 25 168
[J2000]
4 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.46 (a) arcsec ... ... ... 0.052 ... ... ... ... 4.77E+14 12.93 0.10 ... ... ... ... ...
5 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
8.5197 (a) arcsec ... ... 0.767 (b/a) 0.078 ... ... 8.2
[J2000]
... 4.77E+14 17.04 0.16 0.77 0.23 0.26 40 8
[J2000]
6 r (SDSS Exponential)
2007SDSS6.C...0000:
3.7517 (a) arcsec ... ... 0.753 (b/a) 0.020 ... ... 4.6
[J2000]
... 4.77E+14 7.50 0.04 0.75 0.25 0.28 41 5
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J09263370+2123063       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 19.2       arcsec               2a = 38.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 14.59 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.380                         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]      :   10   deg [J2000]                  10 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : 20.0 K-mag arcsec^-2^         
Frequency                     : 2.17         microns                1.38E+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          : 141.640472      21.385077    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J09263370+2123063 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 38.1 arcsec 2a = 76.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 28.92 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.380 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] : 10 deg [J2000] 10 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Diameter for "total" magnitude Frequency : 2.17 microns 1.38E+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 : 141.640472 21.385077 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092633.72+212306.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 21.47 arcsec 2a = 42.94 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 19.51 arcsec 2b = 39.02 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.91 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.09 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.10 Uncertainty : ... ... Cos-1(b/a) : ... 25 deg Position Angle [Equinox] : 168.4 deg [J2000] 168 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 : 141.6405007889 21.3850269074 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092633.72+212306.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.46 arcsec 2a = 12.93 arcsec Uncertainty : 0.052 arcsec 0.10 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 : 141.6405007889 21.3850269074 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092633.72+212306.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 8.5197 arcsec 2a = 17.04 arcsec Uncertainty : 0.078 arcsec 0.16 arcsec Minor Axis (2b) : ... 2b = 13.07 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.767 b/a = 0.77 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 8.2 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 : 141.6405007889 21.3850269074 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J092633.72+212306.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.7517 arcsec 2a = 7.50 arcsec Uncertainty : 0.020 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 5.65 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.753 b/a = 0.75 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 41 deg Position Angle [Equinox] : 4.6 deg [J2000] 5 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 : 141.6405007889 21.3850269074 (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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