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Date and Time of the Query: 2019-05-21 T10:29:15 PDT
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Diameter data point(s) for object IC 0639

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.......:
22.5 (a) arcsec ... ... 0.320 (b/a) ... ... ... 0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 45.00 ... 0.32 0.68 0.81 71 0
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
35.8 (a) arcsec ... ... 0.320 (b/a) ... ... ... 0
[J2000]
Diameter for "total" magnitude 1.38E+14 71.60 ... 0.32 0.68 0.81 71 0
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.70 arcmin 0.20 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 42.00 ... 0.29 0.71 0.85 73 ...
4 r (SDSS Isophotal)
2007SDSS6.C...0000:
34.58 (a) arcsec 11.42 arcsec ... ... ... ... 1.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 69.16 ... 0.33 0.67 0.80 71 1
[J2000]
5 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.84 (a) arcsec ... ... ... 1.012 ... ... ... ... 4.77E+14 13.69 2.02 ... ... ... ... ...
6 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
9.4335 (a) arcsec ... ... 0.346 (b/a) 0.073 ... ... 177.6
[J2000]
... 4.77E+14 18.87 0.15 0.35 0.65 0.79 70 178
[J2000]
7 r (SDSS Exponential)
2007SDSS6.C...0000:
4.5185 (a) arcsec ... ... 0.282 (b/a) 0.016 ... ... 178.2
[J2000]
... 4.77E+14 9.04 0.03 0.28 0.72 0.85 74 178
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J10455200+1655498       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 22.5       arcsec               2a = 45.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 14.40 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.320                         b/a = 0.32
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.68
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.81
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 71 deg
Position Angle [Equinox]      :    0   deg [J2000]                  0 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          : 161.466751      16.930498    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J10455200+1655498 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 35.8 arcsec 2a = 71.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 22.91 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.320 b/a = 0.32 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.68 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 0 deg [J2000] 0 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 : 161.466751 16.930498 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-28-007 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.70 arcmin 2a = 42.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.29 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.71 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.85 Uncertainty : ... ... Cos-1(b/a) : ... 73 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very high surface brightness Frequency : 4050 A 7.40E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : "Outer" diameter Coordinates Targeted : 104312 +1712 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J104552.02+165549.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 34.58 arcsec 2a = 69.16 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 11.42 arcsec 2b = 22.84 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.67 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.80 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : 1.2 deg [J2000] 1 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 : 161.4667564264 16.9304494479 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J104552.02+165549.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.84 arcsec 2a = 13.69 arcsec Uncertainty : 1.012 arcsec 2.02 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 : 161.4667564264 16.9304494479 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J104552.02+165549.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 9.4335 arcsec 2a = 18.87 arcsec Uncertainty : 0.073 arcsec 0.15 arcsec Minor Axis (2b) : ... 2b = 6.53 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.346 b/a = 0.35 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.65 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.79 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : 177.6 deg [J2000] 178 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 : 161.4667564264 16.9304494479 (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 J104552.02+165549.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.5185 arcsec 2a = 9.04 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 2.55 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.282 b/a = 0.28 Uncertainty : 0.001 0.00 Ellipticity : ... 1 - b/a = 0.72 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.85 Uncertainty : ... ... Cos-1(b/a) : ... 74 deg Position Angle [Equinox] : 178.2 deg [J2000] 178 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 : 161.4667564264 16.9304494479 (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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