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Date and Time of the Query: 2019-04-24 T03:34:28 PDT
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Diameter data point(s) for object 2MASX J08211601+2128095

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.......:
5.2 (a) arcsec ... ... 0.460 (b/a) ... ... ... -10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 10.40 ... 0.46 0.54 0.65 63 170
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
7.9 (a) arcsec ... ... 0.460 (b/a) ... ... ... -10
[J2000]
Diameter for "total" magnitude 1.38E+14 15.90 ... 0.46 0.54 0.65 63 170
[J2000]
3 r (SDSS Isophotal)
2006SDSS5.C...0000:
13.50 (a) arcsec 12.17 arcsec ... ... ... ... 111.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 27.00 ... 0.90 0.10 0.10 26 112
[J2000]
4 r (SDSS Petrosian)
2006SDSS5.C...0000:
4.69 (a) arcsec ... ... ... 0.04 ... ... ... ... 4.77E+14 9.39 0.08 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
7.57 (a) arcsec ... ... 0.933 (b/a) 0.13 ... ... 80.0
[J2000]
... 4.77E+14 15.14 0.25 0.93 0.07 0.07 21 80
[J2000]
6 r (SDSS Exponential)
2006SDSS5.C...0000:
2.45 (a) arcsec ... ... 0.917 (b/a) 0.03 ... ... 83.1
[J2000]
... 4.77E+14 4.90 0.05 0.92 0.08 0.09 24 83
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
13.50 (a) arcsec 12.17 arcsec ... ... ... ... 111.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 27.00 ... 0.90 0.10 0.10 26 112
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
4.69 (a) arcsec ... ... ... 0.041 ... ... ... ... 4.77E+14 9.39 0.08 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
7.5712 (a) arcsec ... ... 0.933 (b/a) 0.125 ... ... 80.0
[J2000]
... 4.77E+14 15.14 0.25 0.93 0.07 0.07 21 80
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
2.4482 (a) arcsec ... ... 0.917 (b/a) 0.026 ... ... 83.1
[J2000]
... 4.77E+14 4.90 0.05 0.92 0.08 0.09 24 83
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J08211601+2128095       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 5.2        arcsec               2a = 10.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 4.78 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.460                         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)                    : ...                                 63 deg
Position Angle [Equinox]      :  -10   deg [J2000]                  170 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          : 125.316696      21.469439    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J08211601+2128095 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 7.9 arcsec 2a = 15.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 7.31 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.460 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) : ... 63 deg Position Angle [Equinox] : -10 deg [J2000] 170 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 : 125.316696 21.469439 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J082115.99+212811.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 13.50 arcsec 2a = 27.00 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 12.17 arcsec 2b = 24.34 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.90 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.10 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.10 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 111.7 deg [J2000] 112 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 : 125.3166199 21.4698582 (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 J082115.99+212811.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.69 arcsec 2a = 9.39 arcsec Uncertainty : 0.04 arcsec 0.08 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 : 125.3166199 21.4698582 (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 J082115.99+212811.5 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 7.57 arcsec 2a = 15.14 arcsec Uncertainty : 0.13 arcsec 0.25 arcsec Minor Axis (2b) : ... 2b = 14.13 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.933 b/a = 0.93 Uncertainty : 0.016 0.02 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 21 deg Position Angle [Equinox] : 80.0 deg [J2000] 80 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 : 125.3166199 21.4698582 (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 J082115.99+212811.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.45 arcsec 2a = 4.90 arcsec Uncertainty : 0.03 arcsec 0.05 arcsec Minor Axis (2b) : ... 2b = 4.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.917 b/a = 0.92 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : 83.1 deg [J2000] 83 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 : 125.3166199 21.4698582 (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 J082115.98+212811.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 13.50 arcsec 2a = 27.00 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 12.17 arcsec 2b = 24.34 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.90 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.10 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.10 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 111.7 deg [J2000] 112 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 : 125.3166234317 21.4698583368 (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 J082115.98+212811.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.69 arcsec 2a = 9.39 arcsec Uncertainty : 0.041 arcsec 0.08 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 : 125.3166234317 21.4698583368 (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 J082115.98+212811.4 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 7.5712 arcsec 2a = 15.14 arcsec Uncertainty : 0.125 arcsec 0.25 arcsec Minor Axis (2b) : ... 2b = 14.13 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.933 b/a = 0.93 Uncertainty : 0.016 0.02 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 21 deg Position Angle [Equinox] : 80.0 deg [J2000] 80 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 : 125.3166234317 21.4698583368 (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 J082115.98+212811.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.4482 arcsec 2a = 4.90 arcsec Uncertainty : 0.026 arcsec 0.05 arcsec Minor Axis (2b) : ... 2b = 4.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.917 b/a = 0.92 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : 83.1 deg [J2000] 83 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 : 125.3166234317 21.4698583368 (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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