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Date and Time of the Query: 2019-03-24 T00:25:00 PDT
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Diameter data point(s) for object IC 3509

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.......:
12.0 (a) arcsec ... ... 0.840 (b/a) ... ... ... 65
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 24.00 ... 0.84 0.16 0.17 33 65
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
22.2 (a) arcsec ... ... 0.840 (b/a) ... ... ... 65
[J2000]
Diameter for "total" magnitude 1.38E+14 44.40 ... 0.84 0.16 0.17 33 65
[J2000]
3 r (SDSS Isophotal)
2005SDSS4.C...0000:
31.08 (a) arcsec 20.19 arcsec ... ... ... ... 68.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 62.16 ... 0.65 0.35 0.41 49 68
[J2000]
4 r (SDSS Petrosian)
2005SDSS4.C...0000:
6.98 (a) arcsec ... ... ... 0.13 ... ... ... ... 4.77E+14 13.96 0.26 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
6.08 (a) arcsec ... ... 0.774 (b/a) 0.04 ... ... 67.9
[J2000]
... 4.77E+14 12.16 0.08 0.77 0.23 0.25 39 68
[J2000]
6 r (SDSS Exponential)
2005SDSS4.C...0000:
2.82 (a) arcsec ... ... 0.772 (b/a) 0.01 ... ... 67.4
[J2000]
... 4.77E+14 5.64 0.02 0.77 0.23 0.25 39 67
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
31.08 (a) arcsec 20.19 arcsec ... ... ... ... 68.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 62.16 ... 0.65 0.35 0.41 49 68
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.98 (a) arcsec ... ... ... 0.131 ... ... ... ... 4.77E+14 13.96 0.26 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
6.0791 (a) arcsec ... ... 0.774 (b/a) 0.040 ... ... 67.9
[J2000]
... 4.77E+14 12.16 0.08 0.77 0.23 0.25 39 68
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8211 (a) arcsec ... ... 0.772 (b/a) 0.012 ... ... 67.4
[J2000]
... 4.77E+14 5.64 0.02 0.77 0.23 0.25 39 67
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12341156+1202558       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 12.0       arcsec               2a = 24.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 20.16 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.840                         b/a = 0.84
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.16
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.17
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 33 deg
Position Angle [Equinox]      :   65   deg [J2000]                  65 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          : 188.548111      12.048873    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12341156+1202558 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 22.2 arcsec 2a = 44.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 37.30 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.840 b/a = 0.84 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.16 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 33 deg Position Angle [Equinox] : 65 deg [J2000] 65 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 : 188.548111 12.048873 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J123411.54+120256.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.08 arcsec 2a = 62.16 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.19 arcsec 2b = 40.38 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.65 Uncertainty : ... ... 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] : 68.4 deg [J2000] 68 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 : 188.5480652 12.0489645 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J123411.54+120256.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.98 arcsec 2a = 13.96 arcsec Uncertainty : 0.13 arcsec 0.26 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 : 188.5480652 12.0489645 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J123411.54+120256.3 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 6.08 arcsec 2a = 12.16 arcsec Uncertainty : 0.04 arcsec 0.08 arcsec Minor Axis (2b) : ... 2b = 9.41 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.774 b/a = 0.77 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 67.9 deg [J2000] 68 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 : 188.5480652 12.0489645 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J123411.54+120256.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.82 arcsec 2a = 5.64 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.35 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.772 b/a = 0.77 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 67.4 deg [J2000] 67 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 : 188.5480652 12.0489645 (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 J123411.53+120256.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.08 arcsec 2a = 62.16 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 20.19 arcsec 2b = 40.38 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.65 Uncertainty : ... ... 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] : 68.4 deg [J2000] 68 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 : 188.5480598242 12.0489640828 (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 J123411.53+120256.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.98 arcsec 2a = 13.96 arcsec Uncertainty : 0.131 arcsec 0.26 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 : 188.5480598242 12.0489640828 (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 J123411.53+120256.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 6.0791 arcsec 2a = 12.16 arcsec Uncertainty : 0.040 arcsec 0.08 arcsec Minor Axis (2b) : ... 2b = 9.41 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.774 b/a = 0.77 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 67.9 deg [J2000] 68 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 : 188.5480598242 12.0489640828 (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 J123411.53+120256.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8211 arcsec 2a = 5.64 arcsec Uncertainty : 0.012 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.36 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.772 b/a = 0.77 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 67.4 deg [J2000] 67 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 : 188.5480598242 12.0489640828 (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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