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Date and Time of the Query: 2019-03-25 T23:06:05 PDT
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Diameter data point(s) for object IC 3709

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.......:
13.5 (a) arcsec ... ... 0.820 (b/a) ... ... ... 35
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 27.00 ... 0.82 0.18 0.20 35 35
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
24.9 (a) arcsec ... ... 0.820 (b/a) ... ... ... 35
[J2000]
Diameter for "total" magnitude 1.38E+14 49.70 ... 0.82 0.18 0.20 35 35
[J2000]
3 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.83 log(2a) + 1 ... ... 0.12
log(a/b)
0.12 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 40.60 12.90 0.76 0.24 0.27 41 ...
4 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.83 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 40.60 ... ... ... ... ... ...
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
21.01 (a) arcsec 18.22 arcsec ... ... ... ... 7.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 42.03 ... 0.87 0.13 0.14 30 7
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.20 (a) arcsec ... ... ... 0.087 ... ... ... ... 4.77E+14 12.41 0.17 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
7.5721 (a) arcsec ... ... 0.843 (b/a) 0.063 ... ... 4.8
[J2000]
... 4.77E+14 15.14 0.13 0.84 0.16 0.17 33 5
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
3.2612 (a) arcsec ... ... 0.824 (b/a) 0.014 ... ... 9.1
[J2000]
... 4.77E+14 6.52 0.03 0.82 0.18 0.19 35 9
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12440405+0903482       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 13.5       arcsec               2a = 27.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 22.14 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.820                         b/a = 0.82
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.18
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.20
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 35 deg
Position Angle [Equinox]      :   35   deg [J2000]                  35 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          : 191.016846      9.063360    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12440405+0903482 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 24.9 arcsec 2a = 49.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 40.75 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.820 b/a = 0.82 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 35 deg Position Angle [Equinox] : 35 deg [J2000] 35 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 : 191.016846 9.063360 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : CGCG 071-020 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.83 2a = 40.60 arcsec Uncertainty : 0.12 12.90 arcsec Minor Axis (2b) : ... 2b = 30.82 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.12 b/a = 0.76 Uncertainty : 0.08 0.15 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] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+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 : Isophotal diameter Coordinates Targeted : 124404.2 +090348. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : CGCG 071-020 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.83 2a = 40.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+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 : Isophotal diameter Coordinates Targeted : 124404.2 +090348. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J124404.03+090347.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 21.01 arcsec 2a = 42.03 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 18.22 arcsec 2b = 36.45 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.87 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.13 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.14 Uncertainty : ... ... Cos-1(b/a) : ... 30 deg Position Angle [Equinox] : 7.4 deg [J2000] 7 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 : 191.0168027791 9.0633260578 (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 J124404.03+090347.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.20 arcsec 2a = 12.41 arcsec Uncertainty : 0.087 arcsec 0.17 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 : 191.0168027791 9.0633260578 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J124404.03+090347.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 7.5721 arcsec 2a = 15.14 arcsec Uncertainty : 0.063 arcsec 0.13 arcsec Minor Axis (2b) : ... 2b = 12.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.843 b/a = 0.84 Uncertainty : 0.008 0.01 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] : 4.8 deg [J2000] 5 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 : 191.0168027791 9.0633260578 (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 J124404.03+090347.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.2612 arcsec 2a = 6.52 arcsec Uncertainty : 0.014 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 5.37 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.824 b/a = 0.82 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 35 deg Position Angle [Equinox] : 9.1 deg [J2000] 9 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 : 191.0168027791 9.0633260578 (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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