NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T09:08:08 PDT
Help | Comment | NED Home

Diameter data point(s) for object IC 3436

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.......:
17.7 (a) arcsec ... ... 0.480 (b/a) ... ... ... -50
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 35.40 ... 0.48 0.52 0.63 61 130
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
29.3 (a) arcsec ... ... 0.480 (b/a) ... ... ... -50
[J2000]
Diameter for "total" magnitude 1.38E+14 58.70 ... 0.48 0.52 0.63 61 130
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.35 arcmin 0.20 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 21.00 ... 0.57 0.43 0.51 55 ...
4 r (SDSS Isophotal)
2007SDSS6.C...0000:
23.50 (a) arcsec 21.36 arcsec ... ... ... ... 178.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 47.00 ... 0.91 0.09 0.10 25 179
[J2000]
5 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.36 (a) arcsec ... ... ... 0.309 ... ... ... ... 4.77E+14 10.72 0.62 ... ... ... ... ...
6 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.4830 (a) arcsec ... ... 0.708 (b/a) 0.036 ... ... 130.7
[J2000]
... 4.77E+14 8.97 0.07 0.71 0.29 0.33 45 131
[J2000]
7 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8266 (a) arcsec ... ... 0.564 (b/a) 0.010 ... ... 130.3
[J2000]
... 4.77E+14 5.65 0.02 0.56 0.44 0.52 56 130
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12302995+1940233       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 17.7       arcsec               2a = 35.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 16.99 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.480                         b/a = 0.48
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.52
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.63
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 61 deg
Position Angle [Equinox]      :  -50   deg [J2000]                  130 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          : 187.624786      19.673115    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12302995+1940233 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 29.3 arcsec 2a = 58.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 28.18 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.480 b/a = 0.48 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.52 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : -50 deg [J2000] 130 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 : 187.624786 19.673115 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-32-052 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.35 arcmin 2a = 21.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.57 Uncertainty : ... ... 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] : ... ... 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 : "Inner" diameter Coordinates Targeted : 122800 +1956 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123029.93+194022.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.50 arcsec 2a = 47.00 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 21.36 arcsec 2b = 42.72 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.91 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.09 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.10 Uncertainty : ... ... Cos-1(b/a) : ... 25 deg Position Angle [Equinox] : 178.9 deg [J2000] 179 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 : 187.6247230283 19.6730403790 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J123029.93+194022.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.36 arcsec 2a = 10.72 arcsec Uncertainty : 0.309 arcsec 0.62 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 : 187.6247230283 19.6730403790 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J123029.93+194022.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.4830 arcsec 2a = 8.97 arcsec Uncertainty : 0.036 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 6.35 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.708 b/a = 0.71 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.29 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.33 Uncertainty : ... ... Cos-1(b/a) : ... 45 deg Position Angle [Equinox] : 130.7 deg [J2000] 131 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 : 187.6247230283 19.6730403790 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J123029.93+194022.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8266 arcsec 2a = 5.65 arcsec Uncertainty : 0.010 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 3.19 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.564 b/a = 0.56 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.52 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 130.3 deg [J2000] 130 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 : 187.6247230283 19.6730403790 (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