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Date and Time of the Query: 2019-05-18 T23:29:53 PDT
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Diameter data point(s) for object NGC 7722

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
2.20 arcmin 1.90 arcmin ... ... ... ... 150
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 132.00 ... 0.86 0.14 0.15 30 150
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
45.7 (a) arcsec ... ... 0.800 (b/a) ... ... ... -30
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 91.40 ... 0.80 0.20 0.22 37 150
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
65.8 (a) arcsec ... ... 0.800 (b/a) ... ... ... -30
[J2000]
Diameter for "total" magnitude 1.38E+14 131.70 ... 0.80 0.20 0.22 37 150
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
1.50 arcmin 1.20 arcmin ... ... ... ... ... Very low surface brightness 7.40E+14 90.00 ... 0.80 0.20 0.22 37 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.24 log(2a) + 1 ... ... 0.09
log(a/b)
0.06 ... ... 150
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 104.30 15.40 0.81 0.19 0.20 36 150
[J2000]
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.25 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 106.70 ... ... ... ... ... ...
7 r (SDSS Isophotal)
2004SDSS2.C...0000:
56.89 (a) arcsec 39.75 arcsec ... ... ... ... 145.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 113.79 ... 0.70 0.30 0.34 46 146
[J2000]
8 r (SDSS Petrosian)
2004SDSS2.C...0000:
12.79 (a) arcsec ... ... ... 0.26 ... ... ... ... 4.77E+14 25.58 0.52 ... ... ... ... ...
9 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
7.25 (a) arcsec ... ... 0.726 (b/a) 0.04 ... ... 142.2
[J2000]
... 4.77E+14 14.50 0.07 0.73 0.27 0.31 43 142
[J2000]
10 r (SDSS Exponential)
2004SDSS2.C...0000:
5.42 (a) arcsec ... ... 0.817 (b/a) 0.01 ... ... 141.8
[J2000]
... 4.77E+14 10.84 0.03 0.82 0.18 0.20 35 142
[J2000]
11 r (SDSS Isophotal)
2007SDSS6.C...0000:
56.89 (a) arcsec 39.75 arcsec ... ... ... ... 145.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 113.79 ... 0.70 0.30 0.34 46 146
[J2000]
12 r (SDSS Petrosian)
2007SDSS6.C...0000:
12.79 (a) arcsec ... ... ... 0.259 ... ... ... ... 4.77E+14 25.58 0.52 ... ... ... ... ...
13 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
7.2518 (a) arcsec ... ... 0.726 (b/a) 0.036 ... ... 142.2
[J2000]
... 4.77E+14 14.50 0.07 0.73 0.27 0.31 43 142
[J2000]
14 r (SDSS Exponential)
2007SDSS6.C...0000:
5.4192 (a) arcsec ... ... 0.817 (b/a) 0.015 ... ... 141.8
[J2000]
... 4.77E+14 10.84 0.03 0.82 0.18 0.20 35 142
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 12718                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.20       arcmin                   2a = 132.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.90      arcmin              2b = 114.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.86
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.14
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.15
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 30 deg
Position Angle [Equinox]      : 150    deg [B1950]                  150 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          : 233612.         +154100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23384119+1557174 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 45.7 arcsec 2a = 91.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 73.12 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.800 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : -30 deg [J2000] 150 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 : 354.671661 15.954789 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23384119+1557174 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 65.8 arcsec 2a = 131.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 105.36 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.800 b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : -30 deg [J2000] 150 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 : 354.671661 15.954789 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-60-017 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.50 arcmin 2a = 90.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.20 arcmin 2b = 72.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.80 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.20 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.22 Uncertainty : ... ... Cos-1(b/a) : ... 37 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very 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 : 233606 +1540 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12718 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.24 2a = 104.30 arcsec Uncertainty : 0.06 15.40 arcsec Minor Axis (2b) : ... 2b = 84.80 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.09 b/a = 0.81 Uncertainty : 0.06 0.12 Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 150 deg [J2000] 150 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 : 233841.3 +155715. (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 12718 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.25 2a = 106.70 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 : 233841.3 +155715. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 7 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J233841.21+155716.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 56.89 arcsec 2a = 113.79 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 39.75 arcsec 2b = 79.51 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 145.9 deg [J2000] 146 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 : 354.6716919 15.9546356 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J233841.21+155716.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 12.79 arcsec 2a = 25.58 arcsec Uncertainty : 0.26 arcsec 0.52 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 : 354.6716919 15.9546356 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J233841.21+155716.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 7.25 arcsec 2a = 14.50 arcsec Uncertainty : 0.04 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 10.53 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.726 b/a = 0.73 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 142.2 deg [J2000] 142 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 : 354.6716919 15.9546356 (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 : 2004SDSS2.C...0000: Published Object Name : SDSS J233841.21+155716.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.42 arcsec 2a = 10.84 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 8.86 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.817 b/a = 0.82 Uncertainty : 0.003 0.00 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] : 141.8 deg [J2000] 142 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 : 354.6716919 15.9546356 (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 J233841.20+155716.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 56.89 arcsec 2a = 113.79 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 39.75 arcsec 2b = 79.51 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.70 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.30 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.34 Uncertainty : ... ... Cos-1(b/a) : ... 46 deg Position Angle [Equinox] : 145.9 deg [J2000] 146 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 : 354.6716859320 15.9546353098 (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 J233841.20+155716.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 12.79 arcsec 2a = 25.58 arcsec Uncertainty : 0.259 arcsec 0.52 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 : 354.6716859320 15.9546353098 (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 J233841.20+155716.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 7.2518 arcsec 2a = 14.50 arcsec Uncertainty : 0.036 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 10.53 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.726 b/a = 0.73 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.31 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 142.2 deg [J2000] 142 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 : 354.6716859320 15.9546353098 (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 J233841.20+155716.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.4192 arcsec 2a = 10.84 arcsec Uncertainty : 0.015 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 8.85 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.817 b/a = 0.82 Uncertainty : 0.003 0.00 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] : 141.8 deg [J2000] 142 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 : 354.6716859320 15.9546353098 (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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