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Date and Time of the Query: 2019-03-25 T07:39:47 PDT
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Diameter data point(s) for object IC 0901

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.......:
15.4 (a) arcsec ... ... 0.700 (b/a) ... ... ... 65
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 30.80 ... 0.70 0.30 0.34 46 65
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
26.6 (a) arcsec ... ... 0.700 (b/a) ... ... ... 65
[J2000]
Diameter for "total" magnitude 1.38E+14 53.20 ... 0.70 0.30 0.34 46 65
[J2000]
3 POSS1 103a-O
1963MCG3..C...0000V
0.30 arcmin 0.10 arcmin ... ... ... ... ... High surface brightness 7.40E+14 18.00 ... 0.33 0.67 0.80 71 ...
4 POSS1 103a-O
1963MCG3..C...0000V
1.50 arcmin 0.40 arcmin ... ... ... ... ... Very low surface brightness 7.40E+14 90.00 ... 0.27 0.73 0.87 75 ...
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
22.86 (a) arcsec 18.32 arcsec ... ... ... ... 99.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 45.72 ... 0.80 0.20 0.22 37 100
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
5.62 (a) arcsec ... ... ... 0.208 ... ... ... ... 4.77E+14 11.24 0.42 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.5803 (a) arcsec ... ... 0.740 (b/a) 0.038 ... ... 73.1
[J2000]
... 4.77E+14 9.16 0.07 0.74 0.26 0.29 42 73
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
2.5343 (a) arcsec ... ... 0.725 (b/a) 0.014 ... ... 75.3
[J2000]
... 4.77E+14 5.07 0.03 0.72 0.28 0.31 44 75
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J13354238+1319514       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 15.4       arcsec               2a = 30.80 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 21.56 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.700                         b/a = 0.70
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.30
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.34
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 46 deg
Position Angle [Equinox]      :   65   deg [J2000]                  65 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          : 203.926636      13.330942    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13354238+1319514 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 26.6 arcsec 2a = 53.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 37.24 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.700 b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 65 deg [J2000] 65 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 : 203.926636 13.330942 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-35-011 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.30 arcmin 2a = 18.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.10 arcmin 2b = 6.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.33 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.67 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.80 Uncertainty : ... ... Cos-1(b/a) : ... 71 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : 133318 +1335 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-35-011 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.50 arcmin 2a = 90.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.27 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.73 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.87 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very low 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 : 133318 +1335 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J133542.39+131951.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 22.86 arcsec 2a = 45.72 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 18.32 arcsec 2b = 36.64 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] : 99.5 deg [J2000] 100 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 : 203.9266618373 13.3309079392 (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 J133542.39+131951.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 5.62 arcsec 2a = 11.24 arcsec Uncertainty : 0.208 arcsec 0.42 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 : 203.9266618373 13.3309079392 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J133542.39+131951.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.5803 arcsec 2a = 9.16 arcsec Uncertainty : 0.038 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 6.78 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.740 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] : 73.1 deg [J2000] 73 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 : 203.9266618373 13.3309079392 (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 J133542.39+131951.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.5343 arcsec 2a = 5.07 arcsec Uncertainty : 0.014 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.68 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.725 b/a = 0.72 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 75.3 deg [J2000] 75 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 : 203.9266618373 13.3309079392 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

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