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Date and Time of the Query: 2019-05-27 T05:37:12 PDT
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Diameter data point(s) for object NGC 0879

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.......:
11.7 (a) arcsec ... ... 0.760 (b/a) ... ... ... 60
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 23.40 ... 0.76 0.24 0.27 41 60
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
21.5 (a) arcsec ... ... 0.760 (b/a) ... ... ... 60
[J2000]
Diameter for "total" magnitude 1.38E+14 43.10 ... 0.76 0.24 0.27 41 60
[J2000]
3 r (SDSS Isophotal)
2004SDSS2.C...0000:
23.06 (a) arcsec 20.70 arcsec ... ... ... ... 174.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 46.12 ... 0.90 0.10 0.11 26 174
[J2000]
4 r (SDSS Petrosian)
2004SDSS2.C...0000:
7.25 (a) arcsec ... ... ... 0.06 ... ... ... ... 4.77E+14 14.50 0.11 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
11.75 (a) arcsec ... ... 0.922 (b/a) 0.19 ... ... 31.8
[J2000]
... 4.77E+14 23.50 0.38 0.92 0.08 0.08 23 32
[J2000]
6 r (SDSS Exponential)
2004SDSS2.C...0000:
3.80 (a) arcsec ... ... 0.946 (b/a) 0.03 ... ... 30.0
[J2000]
... 4.77E+14 7.59 0.06 0.95 0.05 0.06 19 30
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
23.06 (a) arcsec 20.70 arcsec ... ... ... ... 174.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 46.12 ... 0.90 0.10 0.11 26 174
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
7.25 (a) arcsec ... ... ... 0.057 ... ... ... ... 4.77E+14 14.50 0.12 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7496 (a) arcsec ... ... 0.922 (b/a) 0.192 ... ... 31.8
[J2000]
... 4.77E+14 23.50 0.38 0.92 0.08 0.08 23 32
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
3.7957 (a) arcsec ... ... 0.946 (b/a) 0.028 ... ... 30.0
[J2000]
... 4.77E+14 7.59 0.06 0.95 0.05 0.06 19 30
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J02165120-0857504       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 11.7       arcsec               2a = 23.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 17.78 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.760                         b/a = 0.76
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.24
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.27
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 41 deg
Position Angle [Equinox]      :   60   deg [J2000]                  60 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          : 34.213341       -8.963963    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J02165120-0857504 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 21.5 arcsec 2a = 43.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 32.76 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.760 b/a = 0.76 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.27 Uncertainty : ... ... Cos-1(b/a) : ... 41 deg Position Angle [Equinox] : 60 deg [J2000] 60 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 : 34.213341 -8.963963 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J021651.20-085750.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.06 arcsec 2a = 46.12 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.70 arcsec 2b = 41.40 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] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 174.2 deg [J2000] 174 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 : 34.2133369 -8.9640141 (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 J021651.20-085750.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 7.25 arcsec 2a = 14.50 arcsec Uncertainty : 0.06 arcsec 0.11 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 : 34.2133369 -8.9640141 (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 J021651.20-085750.5 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.19 arcsec 0.38 arcsec Minor Axis (2b) : ... 2b = 21.67 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.922 b/a = 0.92 Uncertainty : 0.011 0.01 Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.08 Uncertainty : ... ... Cos-1(b/a) : ... 23 deg Position Angle [Equinox] : 31.8 deg [J2000] 32 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 : 34.2133369 -8.9640141 (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 J021651.20-085750.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.80 arcsec 2a = 7.59 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 7.18 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.946 b/a = 0.95 Uncertainty : 0.009 0.01 Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 19 deg Position Angle [Equinox] : 30.0 deg [J2000] 30 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 : 34.2133369 -8.9640141 (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 J021651.20-085750.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.06 arcsec 2a = 46.12 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.70 arcsec 2b = 41.40 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] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 26 deg Position Angle [Equinox] : 174.2 deg [J2000] 174 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 : 34.2133355979 -8.9640144256 (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 J021651.20-085750.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 7.25 arcsec 2a = 14.50 arcsec Uncertainty : 0.057 arcsec 0.12 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 : 34.2133355979 -8.9640144256 (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 J021651.20-085750.4 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7496 arcsec 2a = 23.50 arcsec Uncertainty : 0.192 arcsec 0.38 arcsec Minor Axis (2b) : ... 2b = 21.67 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.922 b/a = 0.92 Uncertainty : 0.011 0.01 Ellipticity : ... 1 - b/a = 0.08 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.08 Uncertainty : ... ... Cos-1(b/a) : ... 23 deg Position Angle [Equinox] : 31.8 deg [J2000] 32 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 : 34.2133355979 -8.9640144256 (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 J021651.20-085750.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.7957 arcsec 2a = 7.59 arcsec Uncertainty : 0.028 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 7.18 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.946 b/a = 0.95 Uncertainty : 0.009 0.01 Ellipticity : ... 1 - b/a = 0.05 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 19 deg Position Angle [Equinox] : 30.0 deg [J2000] 30 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 : 34.2133355979 -8.9640144256 (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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