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Date and Time of the Query: 2019-02-23 T06:41:12 PST
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Diameter data point(s) for object NGC 4959

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.......:
14.4 (a) arcsec ... ... 0.980 (b/a) ... ... ... 90
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 28.80 ... 0.98 0.02 0.02 11 90
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
29.7 (a) arcsec ... ... 0.980 (b/a) ... ... ... 90
[J2000]
Diameter for "total" magnitude 1.38E+14 59.30 ... 0.98 0.02 0.02 11 90
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.20 arcmin 0.20 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 12.00 ... 1.00 0.00 0.00 0 ...
4 POSS1 103a-O
1964MCG2..C...0000V
0.70 arcmin 0.70 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 42.00 ... 1.00 0.00 0.00 0 ...
5 r (SDSS Isophotal)
2006SDSS5.C...0000:
25.84 (a) arcsec 23.98 arcsec ... ... ... ... 2.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 51.69 ... 0.93 0.07 0.07 22 3
[J2000]
6 r (SDSS Petrosian)
2006SDSS5.C...0000:
5.15 (a) arcsec ... ... ... 0.04 ... ... ... ... 4.77E+14 10.29 0.08 ... ... ... ... ...
7 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
1.98 (a) arcsec ... ... 0.933 (b/a) 0.01 ... ... 175.3
[J2000]
... 4.77E+14 3.95 0.03 0.93 0.07 0.07 21 175
[J2000]
8 r (SDSS Exponential)
2006SDSS5.C...0000:
1.81 (a) arcsec ... ... 0.890 (b/a) 0.01 ... ... 2.9
[J2000]
... 4.77E+14 3.62 0.01 0.89 0.11 0.12 27 3
[J2000]
9 r (SDSS Isophotal)
2007SDSS6.C...0000:
25.84 (a) arcsec 23.98 arcsec ... ... ... ... 2.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 51.69 ... 0.93 0.07 0.07 22 3
[J2000]
10 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.15 (a) arcsec ... ... ... 0.038 ... ... ... ... 4.77E+14 10.29 0.08 ... ... ... ... ...
11 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
1.9751 (a) arcsec ... ... 0.933 (b/a) 0.014 ... ... 175.3
[J2000]
... 4.77E+14 3.95 0.03 0.93 0.07 0.07 21 175
[J2000]
12 r (SDSS Exponential)
2007SDSS6.C...0000:
1.8096 (a) arcsec ... ... 0.890 (b/a) 0.006 ... ... 2.9
[J2000]
... 4.77E+14 3.62 0.01 0.89 0.11 0.12 27 3
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J13054103+3310440       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 14.4       arcsec               2a = 28.80 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 28.22 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.980                         b/a = 0.98
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.02
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.02
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 11 deg
Position Angle [Equinox]      :   90   deg [J2000]                  90 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          : 196.420944      33.178890    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13054103+3310440 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 29.7 arcsec 2a = 59.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 58.11 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.980 b/a = 0.98 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.02 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.02 Uncertainty : ... ... Cos-1(b/a) : ... 11 deg Position Angle [Equinox] : 90 deg [J2000] 90 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 : 196.420944 33.178890 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +06-29-029 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.20 arcmin 2a = 12.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very 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 : "Inner" diameter Coordinates Targeted : 130318 +3326 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +06-29-029 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.70 arcmin 2a = 42.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.70 arcmin 2b = 42.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Low 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 : 130318 +3326 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J130541.03+331044.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 25.84 arcsec 2a = 51.69 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.98 arcsec 2b = 47.97 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.93 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 2.8 deg [J2000] 3 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 : 196.4209442 33.1789055 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J130541.03+331044.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.15 arcsec 2a = 10.29 arcsec Uncertainty : 0.04 arcsec 0.08 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 : 196.4209442 33.1789055 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J130541.03+331044.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 1.98 arcsec 2a = 3.95 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.69 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.933 b/a = 0.93 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 21 deg Position Angle [Equinox] : 175.3 deg [J2000] 175 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 : 196.4209442 33.1789055 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J130541.03+331044.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.81 arcsec 2a = 3.62 arcsec Uncertainty : 0.01 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 3.22 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.890 b/a = 0.89 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.11 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.12 Uncertainty : ... ... Cos-1(b/a) : ... 27 deg Position Angle [Equinox] : 2.9 deg [J2000] 3 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 : 196.4209442 33.1789055 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 9 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130541.02+331044.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 25.84 arcsec 2a = 51.69 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.98 arcsec 2b = 47.96 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.93 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 2.8 deg [J2000] 3 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 : 196.4209471710 33.1789048120 (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 J130541.02+331044.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.15 arcsec 2a = 10.29 arcsec Uncertainty : 0.038 arcsec 0.08 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 : 196.4209471710 33.1789048120 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130541.02+331044.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 1.9751 arcsec 2a = 3.95 arcsec Uncertainty : 0.014 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.69 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.933 b/a = 0.93 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 21 deg Position Angle [Equinox] : 175.3 deg [J2000] 175 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 : 196.4209471710 33.1789048120 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J130541.02+331044.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.8096 arcsec 2a = 3.62 arcsec Uncertainty : 0.006 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 3.22 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.890 b/a = 0.89 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.11 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.12 Uncertainty : ... ... Cos-1(b/a) : ... 27 deg Position Angle [Equinox] : 2.9 deg [J2000] 3 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 : 196.4209471710 33.1789048120 (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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