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Date and Time of the Query: 2019-03-25 T07:11:52 PDT
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Diameter data point(s) for object IC 3422

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.......:
15.1 (a) arcsec ... ... 0.600 (b/a) ... ... ... 70
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 30.20 ... 0.60 0.40 0.47 53 70
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
28.1 (a) arcsec ... ... 0.600 (b/a) ... ... ... 70
[J2000]
Diameter for "total" magnitude 1.38E+14 56.20 ... 0.60 0.40 0.47 53 70
[J2000]
3 r (SDSS Isophotal)
2006SDSS5.C...0000:
20.53 (a) arcsec 15.68 arcsec ... ... ... ... 77.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 41.06 ... 0.76 0.24 0.26 40 78
[J2000]
4 r (SDSS Petrosian)
2006SDSS5.C...0000:
6.28 (a) arcsec ... ... ... 0.05 ... ... ... ... 4.77E+14 12.56 0.09 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
5.34 (a) arcsec ... ... 0.821 (b/a) 0.05 ... ... 83.1
[J2000]
... 4.77E+14 10.68 0.11 0.82 0.18 0.19 35 83
[J2000]
6 r (SDSS Exponential)
2006SDSS5.C...0000:
3.03 (a) arcsec ... ... 0.818 (b/a) 0.02 ... ... 80.5
[J2000]
... 4.77E+14 6.05 0.04 0.82 0.18 0.20 35 81
[J2000]
7 r (SDSS Isophotal)
2007SDSS6.C...0000:
20.53 (a) arcsec 15.68 arcsec ... ... ... ... 77.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 41.06 ... 0.76 0.24 0.26 40 78
[J2000]
8 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.28 (a) arcsec ... ... ... 0.046 ... ... ... ... 4.77E+14 12.56 0.09 ... ... ... ... ...
9 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.3385 (a) arcsec ... ... 0.821 (b/a) 0.054 ... ... 83.1
[J2000]
... 4.77E+14 10.68 0.11 0.82 0.18 0.19 35 83
[J2000]
10 r (SDSS Exponential)
2007SDSS6.C...0000:
3.0260 (a) arcsec ... ... 0.818 (b/a) 0.019 ... ... 80.5
[J2000]
... 4.77E+14 6.05 0.04 0.82 0.18 0.20 35 81
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12295460+1441182       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 15.1       arcsec               2a = 30.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 18.12 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]      :   70   deg [J2000]                  70 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          : 187.477509      14.688398    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12295460+1441182 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 28.1 arcsec 2a = 56.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 33.72 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] : 70 deg [J2000] 70 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 : 187.477509 14.688398 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J122954.62+144118.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 20.53 arcsec 2a = 41.06 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.68 arcsec 2b = 31.36 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.76 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 77.9 deg [J2000] 78 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 : 187.4775696 14.6883726 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122954.62+144118.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.28 arcsec 2a = 12.56 arcsec Uncertainty : 0.05 arcsec 0.09 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 : 187.4775696 14.6883726 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122954.62+144118.1 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 5.34 arcsec 2a = 10.68 arcsec Uncertainty : 0.05 arcsec 0.11 arcsec Minor Axis (2b) : ... 2b = 8.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.821 b/a = 0.82 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 35 deg Position Angle [Equinox] : 83.1 deg [J2000] 83 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 : 187.4775696 14.6883726 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122954.62+144118.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.03 arcsec 2a = 6.05 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 4.95 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.818 b/a = 0.82 Uncertainty : 0.006 0.01 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] : 80.5 deg [J2000] 81 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 : 187.4775696 14.6883726 (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 J122954.61+144118.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 20.53 arcsec 2a = 41.06 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 15.68 arcsec 2b = 31.36 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.76 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 77.9 deg [J2000] 78 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 : 187.4775607968 14.6883725033 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J122954.61+144118.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.28 arcsec 2a = 12.56 arcsec Uncertainty : 0.046 arcsec 0.09 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 : 187.4775607968 14.6883725033 (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 J122954.61+144118.1 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.3385 arcsec 2a = 10.68 arcsec Uncertainty : 0.054 arcsec 0.11 arcsec Minor Axis (2b) : ... 2b = 8.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.821 b/a = 0.82 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 35 deg Position Angle [Equinox] : 83.1 deg [J2000] 83 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 : 187.4775607968 14.6883725033 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 10 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J122954.61+144118.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.0260 arcsec 2a = 6.05 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 4.95 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.818 b/a = 0.82 Uncertainty : 0.006 0.01 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] : 80.5 deg [J2000] 81 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 : 187.4775607968 14.6883725033 (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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