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Date and Time of the Query: 2019-05-20 T02:00:35 PDT
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Diameter data point(s) for object NGC 2522

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 POSS1 103a-O
1973UGC...C...0000N
1.10 arcmin 0.35 arcmin ... ... ... ... 32
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 66.00 ... 0.32 0.68 0.82 71 32
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
38.9 (a) arcsec ... ... 0.300 (b/a) ... ... ... 35
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 77.80 ... 0.30 0.70 0.83 73 35
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
57.1 (a) arcsec ... ... 0.300 (b/a) ... ... ... 35
[J2000]
Diameter for "total" magnitude 1.38E+14 114.20 ... 0.30 0.70 0.83 73 35
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.90 arcmin 0.30 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 54.00 ... 0.33 0.67 0.80 71 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.99 log(2a) + 1 ... ... 0.47
log(a/b)
0.06 ... ... 32
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 58.60 8.70 0.34 0.66 0.79 70 32
[J2000]
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.98 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 57.30 ... ... ... ... ... ...
7 r (SDSS Isophotal)
2006SDSS5.C...0000:
46.93 (a) arcsec 23.20 arcsec ... ... ... ... 34.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 93.87 ... 0.49 0.51 0.61 60 34
[J2000]
8 r (SDSS Petrosian)
2006SDSS5.C...0000:
6.47 (a) arcsec ... ... ... 1.74 ... ... ... ... 4.77E+14 12.93 3.48 ... ... ... ... ...
9 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
3.94 (a) arcsec ... ... 0.391 (b/a) 0.02 ... ... 31.3
[J2000]
... 4.77E+14 7.88 0.03 0.39 0.61 0.73 67 31
[J2000]
10 r (SDSS Exponential)
2006SDSS5.C...0000:
2.81 (a) arcsec ... ... 0.383 (b/a) 0.01 ... ... 31.3
[J2000]
... 4.77E+14 5.62 0.02 0.38 0.62 0.74 67 31
[J2000]
11 r (SDSS Isophotal)
2007SDSS6.C...0000:
46.93 (a) arcsec 23.20 arcsec ... ... ... ... 34.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 93.87 ... 0.49 0.51 0.61 60 34
[J2000]
12 r (SDSS Petrosian)
2007SDSS6.C...0000:
6.47 (a) arcsec ... ... ... 1.741 ... ... ... ... 4.77E+14 12.93 3.48 ... ... ... ... ...
13 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.9396 (a) arcsec ... ... 0.391 (b/a) 0.016 ... ... 31.3
[J2000]
... 4.77E+14 7.88 0.03 0.39 0.61 0.73 67 31
[J2000]
14 r (SDSS Exponential)
2007SDSS6.C...0000:
2.8088 (a) arcsec ... ... 0.383 (b/a) 0.009 ... ... 31.3
[J2000]
... 4.77E+14 5.62 0.02 0.38 0.62 0.74 67 31
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 04218                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.10       arcmin                   2a = 66.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.35      arcmin              2b = 21.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.32
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.68
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.82
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 71 deg
Position Angle [Equinox]      :  32    deg [B1950]                  32 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : About 25.0 B-mag arcsec^-2^   
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          : 080318.         +175100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J08061345+1742231 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 38.9 arcsec 2a = 77.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 23.34 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.300 b/a = 0.30 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.70 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.83 Uncertainty : ... ... Cos-1(b/a) : ... 73 deg Position Angle [Equinox] : 35 deg [J2000] 35 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 : 121.556030 17.706505 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J08061345+1742231 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 57.1 arcsec 2a = 114.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 34.26 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.300 b/a = 0.30 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.70 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.83 Uncertainty : ... ... Cos-1(b/a) : ... 73 deg Position Angle [Equinox] : 35 deg [J2000] 35 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 : 121.556030 17.706505 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-21-014 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.90 arcmin 2a = 54.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 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 : 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 : 080324 +1751 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 04218 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.99 2a = 58.60 arcsec Uncertainty : 0.06 8.70 arcsec Minor Axis (2b) : ... 2b = 19.87 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.47 b/a = 0.34 Uncertainty : 0.05 0.04 Ellipticity : ... 1 - b/a = 0.66 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.79 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : 32 deg [J2000] 32 deg [J2000] Uncertainty : ... ... Significance : Mean error Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+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 : Isophotal diameter Coordinates Targeted : 080613.6 +174226. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 04218 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.98 2a = 57.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+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 : Isophotal diameter Coordinates Targeted : 080613.6 +174226. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 7 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J080613.45+174223.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 46.93 arcsec 2a = 93.87 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.20 arcsec 2b = 46.40 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.49 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.61 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 34.3 deg [J2000] 34 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 : 121.5560226 17.7065773 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J080613.45+174223.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.47 arcsec 2a = 12.93 arcsec Uncertainty : 1.74 arcsec 3.48 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 : 121.5560226 17.7065773 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J080613.45+174223.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 3.94 arcsec 2a = 7.88 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.391 b/a = 0.39 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 31.3 deg [J2000] 31 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 : 121.5560226 17.7065773 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J080613.45+174223.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.81 arcsec 2a = 5.62 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 2.15 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.383 b/a = 0.38 Uncertainty : 0.001 0.00 Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.74 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 31.3 deg [J2000] 31 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 : 121.5560226 17.7065773 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080613.44+174223.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 46.93 arcsec 2a = 93.87 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 23.20 arcsec 2b = 46.40 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.49 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.61 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 34.3 deg [J2000] 34 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 : 121.5560152654 17.7065783835 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080613.44+174223.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 6.47 arcsec 2a = 12.93 arcsec Uncertainty : 1.741 arcsec 3.48 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 : 121.5560152654 17.7065783835 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080613.44+174223.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.9396 arcsec 2a = 7.88 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 3.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.391 b/a = 0.39 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.73 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 31.3 deg [J2000] 31 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 : 121.5560152654 17.7065783835 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 14 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080613.44+174223.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.8088 arcsec 2a = 5.62 arcsec Uncertainty : 0.009 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 2.15 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.383 b/a = 0.38 Uncertainty : 0.001 0.00 Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.74 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 31.3 deg [J2000] 31 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 : 121.5560152654 17.7065783835 (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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