NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T02:06:27 PDT
Help | Comment | NED Home

Diameter data point(s) for object IC 0938

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.......:
9.7 (a) arcsec ... ... 0.600 (b/a) ... ... ... -15
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 19.40 ... 0.60 0.40 0.47 53 165
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
19.0 (a) arcsec ... ... 0.600 (b/a) ... ... ... -15
[J2000]
Diameter for "total" magnitude 1.38E+14 38.10 ... 0.60 0.40 0.47 53 165
[J2000]
3 r (SDSS Isophotal)
2004SDSS3.C...0000:
20.02 (a) arcsec 7.80 arcsec ... ... ... ... 152.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 40.03 ... 0.39 0.61 0.74 67 152
[J2000]
4 r (SDSS Petrosian)
2004SDSS3.C...0000:
3.53 (a) arcsec ... ... ... 0.37 ... ... ... ... 4.77E+14 7.06 0.74 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2004SDSS3.C...0000:
2.70 (a) arcsec ... ... 0.462 (b/a) 0.03 ... ... 162.5
[J2000]
... 4.77E+14 5.39 0.06 0.46 0.54 0.65 62 163
[J2000]
6 r (SDSS Exponential)
2004SDSS3.C...0000:
1.54 (a) arcsec ... ... 0.490 (b/a) 0.01 ... ... 162.9
[J2000]
... 4.77E+14 3.08 0.02 0.49 0.51 0.61 61 163
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J13443120+5537382       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 9.7        arcsec               2a = 19.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 11.64 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.600                         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]      :  -15   deg [J2000]                  165 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          : 206.130066      55.627316    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13443120+5537382 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 19.0 arcsec 2a = 38.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 22.86 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.600 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] : -15 deg [J2000] 165 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 : 206.130066 55.627316 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2004SDSS3.C...0000: Published Object Name : SDSS J134431.25+553738.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 20.02 arcsec 2a = 40.03 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 7.80 arcsec 2b = 15.60 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.39 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.74 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 152.2 deg [J2000] 152 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 : 206.1301880 55.6273842 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2004SDSS3.C...0000: Published Object Name : SDSS J134431.25+553738.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.53 arcsec 2a = 7.06 arcsec Uncertainty : 0.37 arcsec 0.74 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 : 206.1301880 55.6273842 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J134431.25+553738.6 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 2.70 arcsec 2a = 5.39 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 2.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.462 b/a = 0.46 Uncertainty : 0.005 0.01 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] : 162.5 deg [J2000] 163 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 : 206.1301880 55.6273842 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 6 Published Units: Homogenized Units: Reference Code : 2004SDSS3.C...0000: Published Object Name : SDSS J134431.25+553738.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.54 arcsec 2a = 3.08 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 1.51 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.490 b/a = 0.49 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.61 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 162.9 deg [J2000] 163 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 : 206.1301880 55.6273842 (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