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Date and Time of the Query: 2019-06-19 T09:53:46 PDT
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Diameter data point(s) for object IC 2839

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.......:
9.5 (a) arcsec ... ... 0.520 (b/a) ... ... ... 5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 19.00 ... 0.52 0.48 0.57 59 5
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
18.0 (a) arcsec ... ... 0.520 (b/a) ... ... ... 5
[J2000]
Diameter for "total" magnitude 1.38E+14 36.10 ... 0.52 0.48 0.57 59 5
[J2000]
3 r (SDSS Isophotal)
2004SDSS3.C...0000:
15.68 (a) arcsec 7.09 arcsec ... ... ... ... 177.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 31.36 ... 0.45 0.55 0.66 63 177
[J2000]
4 r (SDSS Petrosian)
2004SDSS3.C...0000:
3.04 (a) arcsec ... ... ... 0.33 ... ... ... ... 4.77E+14 6.07 0.66 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2004SDSS3.C...0000:
2.67 (a) arcsec ... ... 0.363 (b/a) 0.04 ... ... 179.5
[J2000]
... 4.77E+14 5.34 0.08 0.36 0.64 0.77 69 180
[J2000]
6 r (SDSS Exponential)
2004SDSS3.C...0000:
1.30 (a) arcsec ... ... 0.393 (b/a) 0.02 ... ... 179.6
[J2000]
... 4.77E+14 2.61 0.03 0.39 0.61 0.73 67 180
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
15.68 (a) arcsec 7.09 arcsec ... ... ... ... 177.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 31.36 ... 0.45 0.55 0.66 63 177
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
3.04 (a) arcsec ... ... ... 0.332 ... ... ... ... 4.77E+14 6.07 0.67 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
2.6690 (a) arcsec ... ... 0.363 (b/a) 0.042 ... ... 179.5
[J2000]
... 4.77E+14 5.34 0.08 0.36 0.64 0.77 69 180
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
1.3029 (a) arcsec ... ... 0.393 (b/a) 0.016 ... ... 179.6
[J2000]
... 4.77E+14 2.61 0.03 0.39 0.61 0.73 67 180
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J11274542+1049106       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 9.5        arcsec               2a = 19.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 9.88 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.520                         b/a = 0.52
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.48
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.57
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 59 deg
Position Angle [Equinox]      :    5   deg [J2000]                  5 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          : 171.939255      10.819659    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11274542+1049106 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 18.0 arcsec 2a = 36.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 18.77 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.520 b/a = 0.52 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.48 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.57 Uncertainty : ... ... Cos-1(b/a) : ... 59 deg Position Angle [Equinox] : 5 deg [J2000] 5 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 : 171.939255 10.819659 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2004SDSS3.C...0000: Published Object Name : SDSS J112745.42+104911.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 15.68 arcsec 2a = 31.36 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 7.09 arcsec 2b = 14.18 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.66 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : 177.3 deg [J2000] 177 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 : 171.9392700 10.8197412 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J112745.42+104911.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.04 arcsec 2a = 6.07 arcsec Uncertainty : 0.33 arcsec 0.66 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 : 171.9392700 10.8197412 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J112745.42+104911.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 2.67 arcsec 2a = 5.34 arcsec Uncertainty : 0.04 arcsec 0.08 arcsec Minor Axis (2b) : ... 2b = 1.94 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.363 b/a = 0.36 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.64 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.77 Uncertainty : ... ... Cos-1(b/a) : ... 69 deg Position Angle [Equinox] : 179.5 deg [J2000] 180 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 : 171.9392700 10.8197412 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J112745.42+104911.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.30 arcsec 2a = 2.61 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 1.03 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.393 b/a = 0.39 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 179.6 deg [J2000] 180 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 : 171.9392700 10.8197412 (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 J112745.42+104911.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 15.68 arcsec 2a = 31.36 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 7.09 arcsec 2b = 14.18 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.45 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.55 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.66 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : 177.3 deg [J2000] 177 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 : 171.9392619127 10.8197418688 (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 J112745.42+104911.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.04 arcsec 2a = 6.07 arcsec Uncertainty : 0.332 arcsec 0.67 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 : 171.9392619127 10.8197418688 (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 J112745.42+104911.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 2.6690 arcsec 2a = 5.34 arcsec Uncertainty : 0.042 arcsec 0.08 arcsec Minor Axis (2b) : ... 2b = 1.94 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.363 b/a = 0.36 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.64 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.77 Uncertainty : ... ... Cos-1(b/a) : ... 69 deg Position Angle [Equinox] : 179.5 deg [J2000] 180 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 : 171.9392619127 10.8197418688 (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 J112745.42+104911.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.3029 arcsec 2a = 2.61 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 1.02 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.393 b/a = 0.39 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 179.6 deg [J2000] 180 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 : 171.9392619127 10.8197418688 (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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