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Date and Time of the Query: 2019-08-24 T20:56:59 PDT
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Diameter data point(s) for object IC 2873 NED02

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.......:
13.4 (a) arcsec ... ... 0.620 (b/a) ... ... ... -20
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 26.80 ... 0.62 0.38 0.44 52 160
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
29.0 (a) arcsec ... ... 0.620 (b/a) ... ... ... -20
[J2000]
Diameter for "total" magnitude 1.38E+14 58.00 ... 0.62 0.38 0.44 52 160
[J2000]
3 r (SDSS Isophotal)
2006SDSS5.C...0000:
22.36 (a) arcsec 15.08 arcsec ... ... ... ... 4.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 44.71 ... 0.67 0.33 0.38 48 5
[J2000]
4 r (SDSS Petrosian)
2006SDSS5.C...0000:
6.02 (a) arcsec ... ... ... 0.37 ... ... ... ... 4.77E+14 12.04 0.74 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
5.97 (a) arcsec ... ... 0.550 (b/a) 0.07 ... ... 176.6
[J2000]
... 4.77E+14 11.94 0.13 0.55 0.45 0.54 57 177
[J2000]
6 r (SDSS Exponential)
2006SDSS5.C...0000:
2.92 (a) arcsec ... ... 0.543 (b/a) 0.02 ... ... 176.3
[J2000]
... 4.77E+14 5.83 0.03 0.54 0.46 0.54 57 176
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
22.36 (a) arcsec 15.08 arcsec ... ... ... ... 4.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 44.71 ... 0.67 0.33 0.38 48 5
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.02 (a) arcsec ... ... ... 0.368 ... ... ... ... 4.77E+14 12.04 0.74 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.9708 (a) arcsec ... ... 0.550 (b/a) 0.066 ... ... 176.6
[J2000]
... 4.77E+14 11.94 0.13 0.55 0.45 0.54 57 177
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
2.9159 (a) arcsec ... ... 0.543 (b/a) 0.016 ... ... 176.3
[J2000]
... 4.77E+14 5.83 0.03 0.54 0.46 0.54 57 176
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J11292762+1313121       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 13.4       arcsec               2a = 26.80 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 16.62 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.620                         b/a = 0.62
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.38
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.44
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 52 deg
Position Angle [Equinox]      :  -20   deg [J2000]                  160 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          : 172.365158      13.220096    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11292762+1313121 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 29.0 arcsec 2a = 58.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 35.96 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.620 b/a = 0.62 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.38 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.44 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : -20 deg [J2000] 160 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 : 172.365158 13.220096 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J112927.64+131312.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 22.36 arcsec 2a = 44.71 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.08 arcsec 2b = 30.15 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 4.7 deg [J2000] 5 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 : 172.3651581 13.2201157 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J112927.64+131312.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.02 arcsec 2a = 12.04 arcsec Uncertainty : 0.37 arcsec 0.74 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 : 172.3651581 13.2201157 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J112927.64+131312.4 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 5.97 arcsec 2a = 11.94 arcsec Uncertainty : 0.07 arcsec 0.13 arcsec Minor Axis (2b) : ... 2b = 6.57 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.550 b/a = 0.55 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 176.6 deg [J2000] 177 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 : 172.3651581 13.2201157 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J112927.64+131312.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.92 arcsec 2a = 5.83 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.17 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.543 b/a = 0.54 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 176.3 deg [J2000] 176 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 : 172.3651581 13.2201157 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J112927.63+131312.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 22.36 arcsec 2a = 44.71 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.08 arcsec 2b = 30.15 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 4.7 deg [J2000] 5 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 : 172.3651653282 13.2201158663 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J112927.63+131312.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.02 arcsec 2a = 12.04 arcsec Uncertainty : 0.368 arcsec 0.74 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 : 172.3651653282 13.2201158663 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J112927.63+131312.4 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.9708 arcsec 2a = 11.94 arcsec Uncertainty : 0.066 arcsec 0.13 arcsec Minor Axis (2b) : ... 2b = 6.57 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.550 b/a = 0.55 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 176.6 deg [J2000] 177 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 : 172.3651653282 13.2201158663 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 10 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J112927.63+131312.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.9159 arcsec 2a = 5.83 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.17 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.543 b/a = 0.54 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 176.3 deg [J2000] 176 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 : 172.3651653282 13.2201158663 (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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