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Date and Time of the Query: 2019-04-25 T14:50:23 PDT
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Diameter data point(s) for object IC 0621

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.......:
13.1 (a) arcsec ... ... 0.820 (b/a) ... ... ... -10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 26.20 ... 0.82 0.18 0.20 35 170
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
36.4 (a) arcsec ... ... 0.820 (b/a) ... ... ... -10
[J2000]
Diameter for "total" magnitude 1.38E+14 72.80 ... 0.82 0.18 0.20 35 170
[J2000]
3 r (SDSS Isophotal)
2004SDSS2.C...0000:
23.89 (a) arcsec 16.75 arcsec ... ... ... ... 71.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 47.79 ... 0.70 0.30 0.34 45 71
[J2000]
4 r (SDSS Petrosian)
2004SDSS2.C...0000:
5.41 (a) arcsec ... ... ... 0.11 ... ... ... ... 4.77E+14 10.81 0.22 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
4.16 (a) arcsec ... ... 0.779 (b/a) 0.03 ... ... 89.8
[J2000]
... 4.77E+14 8.33 0.06 0.78 0.22 0.24 39 90
[J2000]
6 r (SDSS Exponential)
2004SDSS2.C...0000:
2.46 (a) arcsec ... ... 0.787 (b/a) 0.01 ... ... 91.8
[J2000]
... 4.77E+14 4.91 0.03 0.79 0.21 0.24 38 92
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
23.89 (a) arcsec 16.75 arcsec ... ... ... ... 71.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 47.79 ... 0.70 0.30 0.34 45 71
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.41 (a) arcsec ... ... ... 0.108 ... ... ... ... 4.77E+14 10.81 0.22 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.1643 (a) arcsec ... ... 0.779 (b/a) 0.032 ... ... 89.8
[J2000]
... 4.77E+14 8.33 0.06 0.78 0.22 0.24 39 90
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
2.4574 (a) arcsec ... ... 0.787 (b/a) 0.013 ... ... 91.8
[J2000]
... 4.77E+14 4.92 0.03 0.79 0.21 0.24 38 92
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J10332103+0236582       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 13.1       arcsec               2a = 26.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 21.48 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.820                         b/a = 0.82
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.18
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.20
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 35 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          : 158.337662      2.616161    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J10332103+0236582 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 36.4 arcsec 2a = 72.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 59.70 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.820 b/a = 0.82 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 35 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 : 158.337662 2.616161 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J103321.04+023658.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.89 arcsec 2a = 47.79 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 16.75 arcsec 2b = 33.51 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 45 deg Position Angle [Equinox] : 71.2 deg [J2000] 71 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 : 158.3376617 2.6161253 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J103321.04+023658.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.41 arcsec 2a = 10.81 arcsec Uncertainty : 0.11 arcsec 0.22 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 : 158.3376617 2.6161253 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J103321.04+023658.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 4.16 arcsec 2a = 8.33 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 6.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.779 b/a = 0.78 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 89.8 deg [J2000] 90 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 : 158.3376617 2.6161253 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J103321.04+023658.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.46 arcsec 2a = 4.91 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.86 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.787 b/a = 0.79 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 91.8 deg [J2000] 92 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 : 158.3376617 2.6161253 (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 J103321.04+023658.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.89 arcsec 2a = 47.79 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 16.75 arcsec 2b = 33.50 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 45 deg Position Angle [Equinox] : 71.2 deg [J2000] 71 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 : 158.3376674877 2.6161252413 (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 J103321.04+023658.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.41 arcsec 2a = 10.81 arcsec Uncertainty : 0.108 arcsec 0.22 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 : 158.3376674877 2.6161252413 (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 J103321.04+023658.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.1643 arcsec 2a = 8.33 arcsec Uncertainty : 0.032 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 6.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.779 b/a = 0.78 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 89.8 deg [J2000] 90 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 : 158.3376674877 2.6161252413 (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 J103321.04+023658.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.4574 arcsec 2a = 4.92 arcsec Uncertainty : 0.013 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.87 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.787 b/a = 0.79 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 91.8 deg [J2000] 92 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 : 158.3376674877 2.6161252413 (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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