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Date and Time of the Query: 2019-04-20 T17:42:44 PDT
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Diameter data point(s) for object 2MASX J08211902+2126485

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.......:
13.6 (a) arcsec ... ... 0.400 (b/a) ... ... ... 40
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 27.20 ... 0.40 0.60 0.72 66 40
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
33.0 (a) arcsec ... ... 0.400 (b/a) ... ... ... 40
[J2000]
Diameter for "total" magnitude 1.38E+14 66.00 ... 0.40 0.60 0.72 66 40
[J2000]
3 r (SDSS Isophotal)
2006SDSS5.C...0000:
20.13 (a) arcsec 9.33 arcsec ... ... ... ... 41.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 40.27 ... 0.46 0.54 0.65 62 42
[J2000]
4 r (SDSS Petrosian)
2006SDSS5.C...0000:
4.43 (a) arcsec ... ... ... 0.35 ... ... ... ... 4.77E+14 8.86 0.71 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
6.77 (a) arcsec ... ... 0.392 (b/a) 0.09 ... ... 40.5
[J2000]
... 4.77E+14 13.55 0.18 0.39 0.61 0.73 67 41
[J2000]
6 r (SDSS Exponential)
2006SDSS5.C...0000:
2.84 (a) arcsec ... ... 0.378 (b/a) 0.02 ... ... 40.0
[J2000]
... 4.77E+14 5.68 0.03 0.38 0.62 0.75 68 40
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
20.13 (a) arcsec 9.33 arcsec ... ... ... ... 41.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 40.27 ... 0.46 0.54 0.65 62 42
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
4.43 (a) arcsec ... ... ... 0.355 ... ... ... ... 4.77E+14 8.86 0.71 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
6.7749 (a) arcsec ... ... 0.392 (b/a) 0.089 ... ... 40.5
[J2000]
... 4.77E+14 13.55 0.18 0.39 0.61 0.73 67 41
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8412 (a) arcsec ... ... 0.378 (b/a) 0.016 ... ... 40.0
[J2000]
... 4.77E+14 5.68 0.03 0.38 0.62 0.75 68 40
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J08211902+2126485       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 13.6       arcsec               2a = 27.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 10.88 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.400                         b/a = 0.40
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.60
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.72
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 66 deg
Position Angle [Equinox]      :   40   deg [J2000]                  40 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          : 125.329193      21.446827    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J08211902+2126485 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 33.0 arcsec 2a = 66.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 26.40 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.400 b/a = 0.40 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.60 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.72 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 40 deg [J2000] 40 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 : 125.329193 21.446827 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J082118.99+212648.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 20.13 arcsec 2a = 40.27 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 9.33 arcsec 2b = 18.66 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 41.6 deg [J2000] 42 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 : 125.3291397 21.4468746 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.43 arcsec 2a = 8.86 arcsec Uncertainty : 0.35 arcsec 0.71 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 : 125.3291397 21.4468746 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 6.77 arcsec 2a = 13.55 arcsec Uncertainty : 0.09 arcsec 0.18 arcsec Minor Axis (2b) : ... 2b = 5.31 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.392 b/a = 0.39 Uncertainty : 0.005 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] : 40.5 deg [J2000] 41 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 : 125.3291397 21.4468746 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.84 arcsec 2a = 5.68 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 2.15 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.378 b/a = 0.38 Uncertainty : 0.003 0.00 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] : 40.0 deg [J2000] 40 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 : 125.3291397 21.4468746 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 20.13 arcsec 2a = 40.27 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 9.33 arcsec 2b = 18.66 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 41.6 deg [J2000] 42 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 : 125.3291312205 21.4468748054 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.43 arcsec 2a = 8.86 arcsec Uncertainty : 0.355 arcsec 0.71 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 : 125.3291312205 21.4468748054 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 6.7749 arcsec 2a = 13.55 arcsec Uncertainty : 0.089 arcsec 0.18 arcsec Minor Axis (2b) : ... 2b = 5.31 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.392 b/a = 0.39 Uncertainty : 0.005 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] : 40.5 deg [J2000] 41 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 : 125.3291312205 21.4468748054 (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 J082118.99+212648.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8412 arcsec 2a = 5.68 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 2.15 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.378 b/a = 0.38 Uncertainty : 0.003 0.00 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] : 40.0 deg [J2000] 40 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 : 125.3291312205 21.4468748054 (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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