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Date and Time of the Query: 2019-04-20 T07:48:59 PDT
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Diameter data point(s) for object NGC 3006

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.......:
19.1 (a) arcsec ... ... 0.280 (b/a) ... ... ... 80
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 38.20 ... 0.28 0.72 0.85 74 80
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
32.0 (a) arcsec ... ... 0.280 (b/a) ... ... ... 80
[J2000]
Diameter for "total" magnitude 1.38E+14 64.00 ... 0.28 0.72 0.85 74 80
[J2000]
3 POSS1 103a-O
1964MCG2..C...0000V
0.65 arcmin 0.15 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 39.00 ... 0.23 0.77 0.90 77 ...
4 r (SDSS Isophotal)
2007SDSS6.C...0000:
26.63 (a) arcsec 10.62 arcsec ... ... ... ... 84.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 53.27 ... 0.40 0.60 0.73 66 84
[J2000]
5 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.50 (a) arcsec ... ... ... 1.016 ... ... ... ... 4.77E+14 13.00 2.03 ... ... ... ... ...
6 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.7640 (a) arcsec ... ... 0.294 (b/a) 0.056 ... ... 85.6
[J2000]
... 4.77E+14 11.53 0.11 0.29 0.71 0.84 73 86
[J2000]
7 r (SDSS Exponential)
2007SDSS6.C...0000:
3.6739 (a) arcsec ... ... 0.241 (b/a) 0.015 ... ... 86.3
[J2000]
... 4.77E+14 7.35 0.03 0.24 0.76 0.89 76 86
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J09491734+4401328       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 19.1       arcsec               2a = 38.20 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 10.70 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.280                         b/a = 0.28
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.72
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.85
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 74 deg
Position Angle [Equinox]      :   80   deg [J2000]                  80 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          : 147.322220      44.025841    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J09491734+4401328 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 32.0 arcsec 2a = 64.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 17.92 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.280 b/a = 0.28 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.72 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.85 Uncertainty : ... ... Cos-1(b/a) : ... 74 deg Position Angle [Equinox] : 80 deg [J2000] 80 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 : 147.322220 44.025841 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-20-055 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.65 arcmin 2a = 39.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.15 arcmin 2b = 9.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.23 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 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 : "Outer" diameter Coordinates Targeted : 094600 +4416 (B1950) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J094917.34+440132.8 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 26.63 arcsec 2a = 53.27 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 10.62 arcsec 2b = 21.24 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.40 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.60 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 84.3 deg [J2000] 84 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 : 147.3222663903 44.0258047693 (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 J094917.34+440132.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.50 arcsec 2a = 13.00 arcsec Uncertainty : 1.016 arcsec 2.03 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 : 147.3222663903 44.0258047693 (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 J094917.34+440132.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.7640 arcsec 2a = 11.53 arcsec Uncertainty : 0.056 arcsec 0.11 arcsec Minor Axis (2b) : ... 2b = 3.39 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.294 b/a = 0.29 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.71 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.84 Uncertainty : ... ... Cos-1(b/a) : ... 73 deg Position Angle [Equinox] : 85.6 deg [J2000] 86 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 : 147.3222663903 44.0258047693 (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 J094917.34+440132.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.6739 arcsec 2a = 7.35 arcsec Uncertainty : 0.015 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 1.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.241 b/a = 0.24 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.76 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.89 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 86.3 deg [J2000] 86 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 : 147.3222663903 44.0258047693 (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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