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Date and Time of the Query: 2019-06-26 T17:11:59 PDT
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Diameter data point(s) for object IC 0731

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.......:
10.1 (a) arcsec ... ... 0.680 (b/a) ... ... ... -85
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 20.20 ... 0.68 0.32 0.37 47 95
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
18.6 (a) arcsec ... ... 0.680 (b/a) ... ... ... -85
[J2000]
Diameter for "total" magnitude 1.38E+14 37.20 ... 0.68 0.32 0.37 47 95
[J2000]
3 POSS1 103a-O
1962MCG1..C...0000V
0.50 arcmin 0.25 arcmin ... ... ... ... ... High surface brightness 7.40E+14 30.00 ... 0.50 0.50 0.60 60 ...
4 r (SDSS Isophotal)
2004SDSS3.C...0000:
18.54 (a) arcsec 10.68 arcsec ... ... ... ... 88.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 37.07 ... 0.58 0.42 0.50 55 88
[J2000]
5 r (SDSS Petrosian)
2004SDSS3.C...0000:
4.94 (a) arcsec ... ... ... 0.23 ... ... ... ... 4.77E+14 9.88 0.46 ... ... ... ... ...
6 r (SDSS de Vaucouleurs)
2004SDSS3.C...0000:
6.09 (a) arcsec ... ... 0.727 (b/a) 0.06 ... ... 90.7
[J2000]
... 4.77E+14 12.19 0.12 0.73 0.27 0.31 43 91
[J2000]
7 r (SDSS Exponential)
2004SDSS3.C...0000:
2.81 (a) arcsec ... ... 0.650 (b/a) 0.02 ... ... 87.6
[J2000]
... 4.77E+14 5.61 0.03 0.65 0.35 0.41 49 88
[J2000]
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
18.54 (a) arcsec 10.68 arcsec ... ... ... ... 88.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 37.07 ... 0.58 0.42 0.50 55 88
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
4.94 (a) arcsec ... ... ... 0.232 ... ... ... ... 4.77E+14 9.88 0.46 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
6.0935 (a) arcsec ... ... 0.727 (b/a) 0.062 ... ... 90.7
[J2000]
... 4.77E+14 12.19 0.12 0.73 0.27 0.31 43 91
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8059 (a) arcsec ... ... 0.650 (b/a) 0.017 ... ... 87.6
[J2000]
... 4.77E+14 5.61 0.04 0.65 0.35 0.41 49 88
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J11451810+4934130       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 10.1       arcsec               2a = 20.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 13.74 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.680                         b/a = 0.68
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.32
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.37
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 47 deg
Position Angle [Equinox]      :  -85   deg [J2000]                  95 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          : 176.325439      49.570366    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11451810+4934130 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 18.6 arcsec 2a = 37.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 25.30 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.680 b/a = 0.68 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.32 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.37 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : -85 deg [J2000] 95 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 : 176.325439 49.570366 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +08-21-096 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.50 arcmin 2a = 30.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.25 arcmin 2b = 15.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : 114236 +4949 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2004SDSS3.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 18.54 arcsec 2a = 37.07 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 10.68 arcsec 2b = 21.35 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 88.2 deg [J2000] 88 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 : 176.3253479 49.5704231 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.94 arcsec 2a = 9.88 arcsec Uncertainty : 0.23 arcsec 0.46 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 : 176.3253479 49.5704231 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 6.09 arcsec 2a = 12.19 arcsec Uncertainty : 0.06 arcsec 0.12 arcsec Minor Axis (2b) : ... 2b = 8.86 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.727 b/a = 0.73 Uncertainty : 0.008 0.01 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 90.7 deg [J2000] 91 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 : 176.3253479 49.5704231 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.81 arcsec 2a = 5.61 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.65 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.650 b/a = 0.65 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 87.6 deg [J2000] 88 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 : 176.3253479 49.5704231 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 18.54 arcsec 2a = 37.07 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 10.68 arcsec 2b = 21.36 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 88.2 deg [J2000] 88 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 : 176.3253507687 49.5704231178 (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 J114518.08+493413.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.94 arcsec 2a = 9.88 arcsec Uncertainty : 0.232 arcsec 0.46 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 : 176.3253507687 49.5704231178 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 6.0935 arcsec 2a = 12.19 arcsec Uncertainty : 0.062 arcsec 0.12 arcsec Minor Axis (2b) : ... 2b = 8.86 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.727 b/a = 0.73 Uncertainty : 0.008 0.01 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 90.7 deg [J2000] 91 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 : 176.3253507687 49.5704231178 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J114518.08+493413.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8059 arcsec 2a = 5.61 arcsec Uncertainty : 0.017 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 3.65 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.650 b/a = 0.65 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 87.6 deg [J2000] 88 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 : 176.3253507687 49.5704231178 (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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