NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T10:22:18 PDT
Help | Comment | NED Home

Diameter data point(s) for object NGC 4187B

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.......:
8.7 (a) arcsec ... ... 0.780 (b/a) ... ... ... 45
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 17.40 ... 0.78 0.22 0.24 39 45
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
20.8 (a) arcsec ... ... 0.780 (b/a) ... ... ... 45
[J2000]
Diameter for "total" magnitude 1.38E+14 41.50 ... 0.78 0.22 0.24 39 45
[J2000]
3 POSS1 103a-O
1962MCG1..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 r (SDSS Isophotal)
2004SDSS2.C...0000:
15.94 (a) arcsec 12.72 arcsec ... ... ... ... 175.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 31.88 ... 0.80 0.20 0.22 37 176
[J2000]
5 r (SDSS Petrosian)
2004SDSS2.C...0000:
3.29 (a) arcsec ... ... ... 0.13 ... ... ... ... 4.77E+14 6.57 0.26 ... ... ... ... ...
6 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
1.61 (a) arcsec ... ... 0.778 (b/a) 0.02 ... ... 11.2
[J2000]
... 4.77E+14 3.23 0.04 0.78 0.22 0.25 39 11
[J2000]
7 r (SDSS Exponential)
2004SDSS2.C...0000:
1.10 (a) arcsec ... ... 0.742 (b/a) 0.01 ... ... 12.5
[J2000]
... 4.77E+14 2.20 0.01 0.74 0.26 0.29 42 13
[J2000]
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
15.94 (a) arcsec 12.72 arcsec ... ... ... ... 175.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 31.88 ... 0.80 0.20 0.22 37 176
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
3.29 (a) arcsec ... ... ... 0.132 ... ... ... ... 4.77E+14 6.57 0.26 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
1.6139 (a) arcsec ... ... 0.778 (b/a) 0.019 ... ... 11.2
[J2000]
... 4.77E+14 3.23 0.04 0.78 0.22 0.25 39 11
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
1.1015 (a) arcsec ... ... 0.742 (b/a) 0.005 ... ... 12.5
[J2000]
... 4.77E+14 2.20 0.01 0.74 0.26 0.29 42 13
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12132890+5045252       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 8.7        arcsec               2a = 17.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 13.57 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.780                         b/a = 0.78
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.22
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.24
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 39 deg
Position Angle [Equinox]      :   45   deg [J2000]                  45 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          : 183.370331      50.756954    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12132890+5045252 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 20.8 arcsec 2a = 41.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 32.37 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.780 b/a = 0.78 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.24 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 45 deg [J2000] 45 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 : 183.370331 50.756954 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1962MCG1..C...0000V Published Object Name : MCG +09-20-116 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 : "Outer" diameter Coordinates Targeted : 121100 +5101 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J121328.85+504524.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 15.94 arcsec 2a = 31.88 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 12.72 arcsec 2b = 25.44 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 175.7 deg [J2000] 176 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 : 183.3702087 50.7568550 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J121328.85+504524.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.29 arcsec 2a = 6.57 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 : 183.3702087 50.7568550 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J121328.85+504524.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 1.61 arcsec 2a = 3.23 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 2.51 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.778 b/a = 0.78 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 11.2 deg [J2000] 11 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 : 183.3702087 50.7568550 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J121328.85+504524.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.10 arcsec 2a = 2.20 arcsec Uncertainty : 0.01 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 1.63 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.742 b/a = 0.74 Uncertainty : 0.005 0.01 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] : 12.5 deg [J2000] 13 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 : 183.3702087 50.7568550 (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 J121328.85+504524.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 15.94 arcsec 2a = 31.88 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 12.72 arcsec 2b = 25.44 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : 175.7 deg [J2000] 176 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 : 183.3702093898 50.7568544994 (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 J121328.85+504524.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.29 arcsec 2a = 6.57 arcsec Uncertainty : 0.132 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 : 183.3702093898 50.7568544994 (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 J121328.85+504524.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 1.6139 arcsec 2a = 3.23 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 2.51 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.778 b/a = 0.78 Uncertainty : 0.006 0.01 Ellipticity : ... 1 - b/a = 0.22 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 39 deg Position Angle [Equinox] : 11.2 deg [J2000] 11 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 : 183.3702093898 50.7568544994 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J121328.85+504524.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.1015 arcsec 2a = 2.20 arcsec Uncertainty : 0.005 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 1.63 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.742 b/a = 0.74 Uncertainty : 0.005 0.01 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] : 12.5 deg [J2000] 13 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 : 183.3702093898 50.7568544994 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

Back to NED Home