NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T07:37:48 PDT
Help | Comment | NED Home

Diameter data point(s) for object NGC 0297

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.......:		 9.1 (a) arcsec ... ... 0.820 (b/a) ... ... ... 85
[J2000]		 20.0 K-mag arcsec^-2^ 1.38E+14 18.20 ... 0.82 0.18 0.20 35 85
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:		 18.1 (a) arcsec ... ... 0.820 (b/a) ... ... ... 85
[J2000]		 Diameter for "total" magnitude 1.38E+14 36.30 ... 0.82 0.18 0.20 35 85
[J2000]

Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J00545892-0720591       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 9.1        arcsec               2a = 18.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 14.92 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.820                         b/a = 0.82
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.18
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.20
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 35 deg
Position Angle [Equinox]      :   85   deg [J2000]                  85 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          : 13.745564       -7.349672    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         


 No. 2
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J00545892-0720591       
Frequency Targeted            : K_s (2MASS "total")           
Major Axis (2a)               : a = 18.1       arcsec               2a = 36.30 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 29.77 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.820                         b/a = 0.82
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.18
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.20
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 35 deg
Position Angle [Equinox]      :   85   deg [J2000]                  85 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          : 13.745564       -7.349672    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :

Back to NED Home