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Date and Time of the Query: 2019-04-18 T06:28:01 PDT
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Diameter data point(s) for object NGC 4774 NED02

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.......:
19.7 (a) arcsec ... ... 0.500 (b/a) ... ... ... -65
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 39.40 ... 0.50 0.50 0.60 60 115
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
32.1 (a) arcsec ... ... 0.500 (b/a) ... ... ... -65
[J2000]
Diameter for "total" magnitude 1.38E+14 64.20 ... 0.50 0.50 0.60 60 115
[J2000]
3 r (SDSS Isophotal)
2007SDSS6.C...0000:
23.82 (a) arcsec 13.06 arcsec ... ... ... ... 105.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 47.64 ... 0.55 0.45 0.54 57 105
[J2000]
4 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.08 (a) arcsec ... ... ... 0.371 ... ... ... ... 4.77E+14 12.15 0.74 ... ... ... ... ...
5 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
6.7910 (a) arcsec ... ... 0.600 (b/a) 0.061 ... ... 99.5
[J2000]
... 4.77E+14 13.58 0.12 0.60 0.40 0.47 53 100
[J2000]
6 r (SDSS Exponential)
2007SDSS6.C...0000:
3.4833 (a) arcsec ... ... 0.504 (b/a) 0.016 ... ... 97.5
[J2000]
... 4.77E+14 6.97 0.03 0.50 0.50 0.59 60 98
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J12530651+3649109       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 19.7       arcsec               2a = 39.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 19.70 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]      :  -65   deg [J2000]                  115 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          : 193.277130      36.819599    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12530651+3649109 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 32.1 arcsec 2a = 64.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 32.10 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] : -65 deg [J2000] 115 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 : 193.277130 36.819599 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J125306.58+364908.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 23.82 arcsec 2a = 47.64 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 13.06 arcsec 2b = 26.12 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.55 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.54 Uncertainty : ... ... Cos-1(b/a) : ... 57 deg Position Angle [Equinox] : 105.4 deg [J2000] 105 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 : 193.2774499535 36.8190643023 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J125306.58+364908.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.08 arcsec 2a = 12.15 arcsec Uncertainty : 0.371 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 : 193.2774499535 36.8190643023 (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 J125306.58+364908.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 6.7910 arcsec 2a = 13.58 arcsec Uncertainty : 0.061 arcsec 0.12 arcsec Minor Axis (2b) : ... 2b = 8.15 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.600 b/a = 0.60 Uncertainty : 0.005 0.01 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] : 99.5 deg [J2000] 100 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 : 193.2774499535 36.8190643023 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J125306.58+364908.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.4833 arcsec 2a = 6.97 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.51 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.504 b/a = 0.50 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.59 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 97.5 deg [J2000] 98 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 : 193.2774499535 36.8190643023 (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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