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Date and Time of the Query: 2019-03-23 T20:03:15 PDT
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Diameter data point(s) for object NGC 4297

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.......:
16.0 (a) arcsec ... ... 0.500 (b/a) ... ... ... -5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 32.00 ... 0.50 0.50 0.60 60 175
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
25.4 (a) arcsec ... ... 0.500 (b/a) ... ... ... -5
[J2000]
Diameter for "total" magnitude 1.38E+14 50.90 ... 0.50 0.50 0.60 60 175
[J2000]
3 POSS1 103a-O
1963MCG3..C...0000V
0.15 arcmin 0.10 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 9.00 ... 0.67 0.33 0.38 48 ...
4 POSS1 103a-O
1963MCG3..C...0000V
0.40 arcmin 0.20 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 24.00 ... 0.50 0.50 0.60 60 ...
5 r (SDSS Isophotal)
2006SDSS5.C...0000:
54.10 (a) arcsec 11.33 arcsec ... ... ... ... 158.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 108.21 ... 0.21 0.79 0.92 78 159
[J2000]
6 r (SDSS Petrosian)
2006SDSS5.C...0000:
16.40 (a) arcsec ... ... ... 5.92 ... ... ... ... 4.77E+14 32.79 11.83 ... ... ... ... ...
7 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
2.31 (a) arcsec ... ... 0.465 (b/a) 0.02 ... ... 169.6
[J2000]
... 4.77E+14 4.61 0.04 0.47 0.53 0.64 62 170
[J2000]
8 r (SDSS Exponential)
2006SDSS5.C...0000:
1.72 (a) arcsec ... ... 0.458 (b/a) 0.01 ... ... 170.5
[J2000]
... 4.77E+14 3.44 0.01 0.46 0.54 0.65 63 171
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12212737+0640159       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 16.0       arcsec               2a = 32.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 16.00 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.500                         b/a = 0.50
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.50
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.60
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 60 deg
Position Angle [Equinox]      :   -5   deg [J2000]                  175 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          : 185.364151      6.671167    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12212737+0640159 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 25.4 arcsec 2a = 50.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 25.45 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.500 b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : -5 deg [J2000] 175 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 : 185.364151 6.671167 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-018 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.15 arcmin 2a = 9.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.10 arcmin 2b = 6.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 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 : 121854 +0656 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-32-018 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.20 arcmin 2b = 12.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : 121854 +0656 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J122127.41+064016.4 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 54.10 arcsec 2a = 108.21 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 11.33 arcsec 2b = 22.66 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.21 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.79 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.92 Uncertainty : ... ... Cos-1(b/a) : ... 78 deg Position Angle [Equinox] : 158.5 deg [J2000] 159 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 : 185.3641968 6.6712203 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122127.41+064016.4 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 16.40 arcsec 2a = 32.79 arcsec Uncertainty : 5.92 arcsec 11.83 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 : 185.3641968 6.6712203 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122127.41+064016.4 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 2.31 arcsec 2a = 4.61 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 2.14 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.465 b/a = 0.47 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.53 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.64 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 169.6 deg [J2000] 170 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 : 185.3641968 6.6712203 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J122127.41+064016.4 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.72 arcsec 2a = 3.44 arcsec Uncertainty : 0.01 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 1.58 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.458 b/a = 0.46 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 63 deg Position Angle [Equinox] : 170.5 deg [J2000] 171 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 : 185.3641968 6.6712203 (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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