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Date and Time of the Query: 2019-04-20 T15:13:37 PDT
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Diameter data point(s) for object NGC 4002

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.......:
27.4 (a) arcsec ... ... 0.500 (b/a) ... ... ... -70
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 54.80 ... 0.50 0.50 0.60 60 110
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
42.2 (a) arcsec ... ... 0.500 (b/a) ... ... ... -70
[J2000]
Diameter for "total" magnitude 1.38E+14 84.50 ... 0.50 0.50 0.60 60 110
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.60 arcmin 0.30 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 36.00 ... 0.50 0.50 0.60 60 ...
4 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.90 log(2a) + 1 ... ... 0.27
log(a/b)
0.17 ... ... 75
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 47.70 22.80 0.54 0.46 0.55 58 75
[J2000]
5 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.86 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 43.50 ... ... ... ... ... ...
6 r (SDSS Isophotal)
2007SDSS6.C...0000:
50.30 (a) arcsec 23.25 arcsec ... ... ... ... 108.8
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 100.60 ... 0.46 0.54 0.65 62 109
[J2000]
7 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.46 (a) arcsec ... ... ... 0.532 ... ... ... ... 4.77E+14 12.93 1.06 ... ... ... ... ...
8 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.3458 (a) arcsec ... ... 0.531 (b/a) 0.021 ... ... 110.0
[J2000]
... 4.77E+14 8.69 0.04 0.53 0.47 0.56 58 110
[J2000]
9 r (SDSS Exponential)
2007SDSS6.C...0000:
2.9170 (a) arcsec ... ... 0.572 (b/a) 0.010 ... ... 109.2
[J2000]
... 4.77E+14 5.83 0.02 0.57 0.43 0.51 55 109
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J11575931+2312070       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 27.4       arcsec               2a = 54.80 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 27.40 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.500                         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]      :  -70   deg [J2000]                  110 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          : 179.497101      23.201996    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J11575931+2312070 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 42.2 arcsec 2a = 84.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 42.25 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.500 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] : -70 deg [J2000] 110 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 : 179.497101 23.201996 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +04-28-104 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.60 arcmin 2a = 36.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 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 : Intermed. 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 : 115518 +2328 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +04-28-104 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.90 2a = 47.70 arcsec Uncertainty : 0.17 22.80 arcsec Minor Axis (2b) : ... 2b = 25.61 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.27 b/a = 0.54 Uncertainty : 0.07 0.09 Ellipticity : ... 1 - b/a = 0.46 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.55 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 75 deg [J2000] 75 deg [J2000] 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 : 115748.0 +231100. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : MCG +04-28-104 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.86 2a = 43.50 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 : 115748.0 +231100. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J115759.29+231207.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 50.30 arcsec 2a = 100.60 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.25 arcsec 2b = 46.50 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 108.8 deg [J2000] 109 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 : 179.4970798803 23.2020418657 (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 J115759.29+231207.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.46 arcsec 2a = 12.93 arcsec Uncertainty : 0.532 arcsec 1.06 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 : 179.4970798803 23.2020418657 (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 J115759.29+231207.3 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.3458 arcsec 2a = 8.69 arcsec Uncertainty : 0.021 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 4.62 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.531 b/a = 0.53 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 110.0 deg [J2000] 110 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 : 179.4970798803 23.2020418657 (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 J115759.29+231207.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.9170 arcsec 2a = 5.83 arcsec Uncertainty : 0.010 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 3.34 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.572 b/a = 0.57 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.51 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 109.2 deg [J2000] 109 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 : 179.4970798803 23.2020418657 (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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