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Date and Time of the Query: 2019-06-17 T20:55:20 PDT
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Diameter data point(s) for object IC 3719

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 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.61 log(2a) + 1 ... ... 0.24
log(a/b)
0.17 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 24.40 11.70 0.57 0.43 0.50 55 ...
2 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.61 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 24.40 ... ... ... ... ... ...
3 r (SDSS Isophotal)
2007SDSS6.C...0000:
21.03 (a) arcsec 15.59 arcsec ... ... ... ... 88.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 42.07 ... 0.74 0.26 0.29 42 89
[J2000]
4 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.43 (a) arcsec ... ... ... 0.097 ... ... ... ... 4.77E+14 12.86 0.19 ... ... ... ... ...
5 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7496 (a) arcsec ... ... 0.838 (b/a) 0.221 ... ... 75.3
[J2000]
... 4.77E+14 23.50 0.44 0.84 0.16 0.17 33 75
[J2000]
6 r (SDSS Exponential)
2007SDSS6.C...0000:
3.5625 (a) arcsec ... ... 0.795 (b/a) 0.030 ... ... 77.5
[J2000]
... 4.77E+14 7.12 0.06 0.80 0.20 0.23 37 78
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1991RC3.9.C...0000d
Published Object Name         : CGCG 043-016                  
Frequency Targeted            : RC3 D_25, R_25 (blue)         
Major Axis (2a)               : log(2a) + 1 = 0.61                  2a = 24.40 arcsec
Uncertainty                   :   0.17                              11.70 arcsec              
Minor Axis (2b)               : ...                                 2b = 14.03 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : log(a/b) =  0.24                    b/a = 0.57
Uncertainty                   :   0.08                              0.12
Ellipticity                   : ...                                 1 - b/a = 0.43
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.50
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 55 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          : 124447.6        +080630.    (J2000)
Qualifiers                    : Homogenized from previously published data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : CGCG 043-016 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.61 2a = 24.40 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 : 124447.6 +080630. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J124447.50+080624.8 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 21.03 arcsec 2a = 42.07 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.59 arcsec 2b = 31.18 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 88.8 deg [J2000] 89 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 : 191.1979194712 8.1069055353 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J124447.50+080624.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.43 arcsec 2a = 12.86 arcsec Uncertainty : 0.097 arcsec 0.19 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 : 191.1979194712 8.1069055353 (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 J124447.50+080624.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7496 arcsec 2a = 23.50 arcsec Uncertainty : 0.221 arcsec 0.44 arcsec Minor Axis (2b) : ... 2b = 19.69 arcsec Uncertainty : ... 0.01 Axis Ratio : b/a = 0.838 b/a = 0.84 Uncertainty : 0.012 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] : 75.3 deg [J2000] 75 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 : 191.1979194712 8.1069055353 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J124447.50+080624.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.5625 arcsec 2a = 7.12 arcsec Uncertainty : 0.030 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 5.66 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.795 b/a = 0.80 Uncertainty : 0.009 0.01 Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 77.5 deg [J2000] 78 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 : 191.1979194712 8.1069055353 (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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