NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T03:26:23 PDT
Help | Comment | NED Home

Diameter data point(s) for object NGC 6184

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.......:
20.0 (a) arcsec ... ... 0.580 (b/a) ... ... ... -40
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 40.00 ... 0.58 0.42 0.50 55 140
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
32.4 (a) arcsec ... ... 0.580 (b/a) ... ... ... -40
[J2000]
Diameter for "total" magnitude 1.38E+14 64.70 ... 0.58 0.42 0.50 55 140
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.50 arcmin 0.30 arcmin ... ... ... ... ... Moderate surface brightness 7.40E+14 30.00 ... 0.60 0.40 0.47 53 ...
4 r (SDSS Isophotal)
2004SDSS2.C...0000:
31.13 (a) arcsec 18.74 arcsec ... ... ... ... 114.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 62.26 ... 0.60 0.40 0.47 53 114
[J2000]
5 r (SDSS Petrosian)
2004SDSS2.C...0000:
6.26 (a) arcsec ... ... ... 0.20 ... ... ... ... 4.77E+14 12.52 0.40 ... ... ... ... ...
6 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
3.96 (a) arcsec ... ... 0.686 (b/a) 0.02 ... ... 120.5
[J2000]
... 4.77E+14 7.93 0.04 0.69 0.31 0.36 47 121
[J2000]
7 r (SDSS Exponential)
2004SDSS2.C...0000:
3.04 (a) arcsec ... ... 0.671 (b/a) 0.01 ... ... 124.8
[J2000]
... 4.77E+14 6.08 0.02 0.67 0.33 0.38 48 125
[J2000]
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
31.13 (a) arcsec 18.74 arcsec ... ... ... ... 114.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 62.26 ... 0.60 0.40 0.47 53 114
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.26 (a) arcsec ... ... ... 0.200 ... ... ... ... 4.77E+14 12.52 0.40 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.9649 (a) arcsec ... ... 0.686 (b/a) 0.020 ... ... 120.5
[J2000]
... 4.77E+14 7.93 0.04 0.69 0.31 0.36 47 121
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
3.0397 (a) arcsec ... ... 0.671 (b/a) 0.012 ... ... 124.8
[J2000]
... 4.77E+14 6.08 0.02 0.67 0.33 0.38 48 125
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J16313454+4033560       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 20.0       arcsec               2a = 40.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 23.20 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.580                         b/a = 0.58
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.42
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.50
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 55 deg
Position Angle [Equinox]      :  -40   deg [J2000]                  140 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          : 247.893890      40.565598    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J16313454+4033560 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 32.4 arcsec 2a = 64.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 37.53 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.580 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : -40 deg [J2000] 140 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 : 247.893890 40.565598 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-34-109 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.50 arcmin 2a = 30.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Moderate 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 : 162954 +4039 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J163134.53+403356.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.13 arcsec 2a = 62.26 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 18.74 arcsec 2b = 37.48 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : 114.2 deg [J2000] 114 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 : 247.8938751 40.5656013 (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 J163134.53+403356.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.26 arcsec 2a = 12.52 arcsec Uncertainty : 0.20 arcsec 0.40 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 : 247.8938751 40.5656013 (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 J163134.53+403356.2 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 3.96 arcsec 2a = 7.93 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 5.44 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.686 b/a = 0.69 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.36 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : 120.5 deg [J2000] 121 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 : 247.8938751 40.5656013 (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 J163134.53+403356.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.04 arcsec 2a = 6.08 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.671 b/a = 0.67 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 124.8 deg [J2000] 125 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 : 247.8938751 40.5656013 (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 J163134.53+403356.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 31.13 arcsec 2a = 62.26 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 18.74 arcsec 2b = 37.48 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.60 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : 114.2 deg [J2000] 114 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 : 247.8938797295 40.5655994036 (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 J163134.53+403356.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.26 arcsec 2a = 12.52 arcsec Uncertainty : 0.200 arcsec 0.40 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 : 247.8938797295 40.5655994036 (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 J163134.53+403356.1 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.9649 arcsec 2a = 7.93 arcsec Uncertainty : 0.020 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 5.44 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.686 b/a = 0.69 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.36 Uncertainty : ... ... Cos-1(b/a) : ... 47 deg Position Angle [Equinox] : 120.5 deg [J2000] 121 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 : 247.8938797295 40.5655994036 (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 J163134.53+403356.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.0397 arcsec 2a = 6.08 arcsec Uncertainty : 0.012 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 4.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.671 b/a = 0.67 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 124.8 deg [J2000] 125 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 : 247.8938797295 40.5655994036 (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