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Date and Time of the Query: 2019-06-24 T16:49:46 PDT
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Diameter data point(s) for object IC 2752

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.......:
10.6 (a) arcsec ... ... 0.400 (b/a) ... ... ... -80
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 21.20 ... 0.40 0.60 0.72 66 100
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
19.1 (a) arcsec ... ... 0.400 (b/a) ... ... ... -80
[J2000]
Diameter for "total" magnitude 1.38E+14 38.30 ... 0.40 0.60 0.72 66 100
[J2000]
3 r (SDSS Isophotal)
2006SDSS5.C...0000:
23.71 (a) arcsec 5.82 arcsec ... ... ... ... 100.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 47.42 ... 0.24 0.76 0.89 76 101
[J2000]
4 r (SDSS Petrosian)
2006SDSS5.C...0000:
3.92 (a) arcsec ... ... ... 0.60 ... ... ... ... 4.77E+14 7.85 1.21 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
6.08 (a) arcsec ... ... 0.253 (b/a) 0.10 ... ... 99.4
[J2000]
... 4.77E+14 12.16 0.19 0.25 0.75 0.88 75 99
[J2000]
6 r (SDSS Exponential)
2006SDSS5.C...0000:
2.76 (a) arcsec ... ... 0.254 (b/a) 0.02 ... ... 99.8
[J2000]
... 4.77E+14 5.53 0.04 0.25 0.75 0.88 75 100
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J11220194+1407279       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 10.6       arcsec               2a = 21.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 8.48 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]      :  -80   deg [J2000]                  100 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          : 170.508087      14.124499    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11220194+1407279 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 19.1 arcsec 2a = 38.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 15.32 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] : -80 deg [J2000] 100 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 : 170.508087 14.124499 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J112201.94+140728.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.71 arcsec 2a = 47.42 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 5.82 arcsec 2b = 11.64 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.24 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 100.8 deg [J2000] 101 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 : 170.5081024 14.1245031 (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 J112201.94+140728.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.92 arcsec 2a = 7.85 arcsec Uncertainty : 0.60 arcsec 1.21 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 : 170.5081024 14.1245031 (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 J112201.94+140728.2 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 6.08 arcsec 2a = 12.16 arcsec Uncertainty : 0.10 arcsec 0.19 arcsec Minor Axis (2b) : ... 2b = 3.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.253 b/a = 0.25 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : 99.4 deg [J2000] 99 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 : 170.5081024 14.1245031 (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 J112201.94+140728.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.76 arcsec 2a = 5.53 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 1.40 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.254 b/a = 0.25 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : 99.8 deg [J2000] 100 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 : 170.5081024 14.1245031 (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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