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Date and Time of the Query: 2019-03-20 T15:03:01 PDT
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Diameter data point(s) for object NGC 4237

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 1.40 arcmin ... ... ... ... 108
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 132.00 ... 0.64 0.36 0.42 51 108
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
51.9 (a) arcsec ... ... 0.620 (b/a) ... ... ... -75
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 103.80 ... 0.62 0.38 0.44 52 105
[J2000]
3 K_s (2MASS isophotal)
20032MASX.C.......:
30.2 (a) arcsec ... ... 0.700 (b/a) ... ... ... -45
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 60.40 ... 0.70 0.30 0.34 46 135
[J2000]
4 K_s (2MASS "total")
20032MASX.C.......:
73.7 (a) arcsec ... ... 0.620 (b/a) ... ... ... -75
[J2000]
Diameter for "total" magnitude 1.38E+14 147.50 ... 0.62 0.38 0.44 52 105
[J2000]
5 K_s (2MASS "total")
20032MASX.C.......:
47.6 (a) arcsec ... ... 0.700 (b/a) ... ... ... -45
[J2000]
Diameter for "total" magnitude 1.38E+14 95.10 ... 0.70 0.30 0.34 46 135
[J2000]
6 POSS1 103a-O
1964MCG2..C...0000V
1.30 arcmin 0.90 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 78.00 ... 0.69 0.31 0.35 46 ...
7 POSS1 103a-O
1964MCG2..C...0000V
2.30 arcmin 1.50 arcmin ... ... ... ... ... Very low surface brightness 7.40E+14 138.00 ... 0.65 0.35 0.40 49 ...
8 B (Johnson)
1994A&AS..106..451D
64.5 (a) arcsec ... ... ... 2.7 ... ... ... 25 B-mag arcsec^-2^ 6.81E+14 129.00 5.40 ... ... ... ... ...
9 R (Kron-Cousins)
1994A&AS..106..451D
63.0 (a) arcsec ... ... 0.67 (b/a) 1.6 ... ... 104.3
[J2000]
23.5 R-mag arcsec^-2^ 4.68E+14 126.00 3.20 0.67 0.33 0.38 48 104
[J2000]
10 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.32 log(2a) + 1 ... ... 0.19
log(a/b)
0.03 ... ... 108
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 125.40 9.00 0.65 0.35 0.41 50 108
[J2000]
11 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.32 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 125.40 ... ... ... ... ... ...
12 r (SDSS Isophotal)
2006SDSS5.C...0000:
78.34 (a) arcsec 33.64 arcsec ... ... ... ... 101.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 156.69 ... 0.43 0.57 0.69 65 101
[J2000]
13 r (SDSS Petrosian)
2006SDSS5.C...0000:
15.10 (a) arcsec ... ... ... 0.46 ... ... ... ... 4.77E+14 30.19 0.92 ... ... ... ... ...
14 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
11.75 (a) arcsec ... ... 0.737 (b/a) 0.12 ... ... 105.1
[J2000]
... 4.77E+14 23.50 0.25 0.74 0.26 0.30 43 105
[J2000]
15 r (SDSS Exponential)
2006SDSS5.C...0000:
8.63 (a) arcsec ... ... 0.532 (b/a) 0.04 ... ... 105.0
[J2000]
... 4.77E+14 17.26 0.07 0.53 0.47 0.56 58 105
[J2000]
16 r (SDSS Isophotal)
2007SDSS6.C...0000:
78.34 (a) arcsec 33.64 arcsec ... ... ... ... 101.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 156.69 ... 0.43 0.57 0.69 65 101
[J2000]
17 r (SDSS Petrosian)
2007SDSS6.C...0000:
15.10 (a) arcsec ... ... ... 0.460 ... ... ... ... 4.77E+14 30.19 0.92 ... ... ... ... ...
18 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7492 (a) arcsec ... ... 0.737 (b/a) 0.125 ... ... 105.1
[J2000]
... 4.77E+14 23.50 0.25 0.74 0.26 0.30 43 105
[J2000]
19 r (SDSS Exponential)
2007SDSS6.C...0000:
8.6315 (a) arcsec ... ... 0.532 (b/a) 0.037 ... ... 105.0
[J2000]
... 4.77E+14 17.26 0.07 0.53 0.47 0.56 58 105
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07315                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.20       arcmin                   2a = 132.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.40      arcmin              2b = 84.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.64
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.36
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.42
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 51 deg
Position Angle [Equinox]      : 108    deg [B1950]                  108 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          : 121442.         +153600.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12171141+1519262 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 51.9 arcsec 2a = 103.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 64.36 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.620 b/a = 0.62 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.38 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.44 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : -75 deg [J2000] 105 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 : 184.297577 15.323986 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12170941+1519330 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 30.2 arcsec 2a = 60.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 42.28 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.700 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] : -45 deg [J2000] 135 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 : 184.289291 15.325816 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12171141+1519262 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 73.7 arcsec 2a = 147.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 91.45 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.620 b/a = 0.62 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.38 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.44 Uncertainty : ... ... Cos-1(b/a) : ... 52 deg Position Angle [Equinox] : -75 deg [J2000] 105 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 : 184.297577 15.323986 (J2000) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12170941+1519330 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 47.6 arcsec 2a = 95.10 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 66.57 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.700 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] : -45 deg [J2000] 135 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 : 184.289291 15.325816 (J2000) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-31-091 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.30 arcmin 2a = 78.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.90 arcmin 2b = 54.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.69 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.35 Uncertainty : ... ... Cos-1(b/a) : ... 46 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 : 121430 +1535 (B1950) Qualifiers : From new, raw data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-31-091 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.30 arcmin 2a = 138.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.50 arcmin 2b = 90.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.65 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.40 Uncertainty : ... ... Cos-1(b/a) : ... 49 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 : 121430 +1535 (B1950) Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 07315 Frequency Targeted : B (Johnson) Major Axis (2a) : a = 64.5 arcsec 2a = 129.00 arcsec Uncertainty : 2.7 arcsec 5.40 arcsec Minor Axis (2b) : ... 2b = -128871.00 arcsec Uncertainty : ... ... Axis Ratio : b/a = b/a = -999.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 1000.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 1.00 Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : rms noise Diameter Reference Level : 25 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Calibrated CCD image Fitting Technique : Profile fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 07315 Frequency Targeted : R (Kron-Cousins) Major Axis (2a) : a = 63.0 arcsec 2a = 126.00 arcsec Uncertainty : 1.6 arcsec 3.20 arcsec Minor Axis (2b) : ... 2b = 84.42 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.67 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] : 104.3 deg [J2000] 104 deg [J2000] Uncertainty : 10 10 Significance : rms noise Diameter Reference Level : 23.5 R-mag arcsec^-2^ Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Calibrated CCD image Fitting Technique : Profile fitting to image Measured Quantity : Isophotal diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07315 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.32 2a = 125.40 arcsec Uncertainty : 0.03 9.00 arcsec Minor Axis (2b) : ... 2b = 81.01 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.19 b/a = 0.65 Uncertainty : 0.03 0.05 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 108 deg [J2000] 108 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 : 121710.7 +151928. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 11 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07315 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.32 2a = 125.40 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 : 121710.7 +151928. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 12 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J121711.42+151926.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 78.34 arcsec 2a = 156.69 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 33.64 arcsec 2b = 67.28 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.43 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.57 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.69 Uncertainty : ... ... Cos-1(b/a) : ... 65 deg Position Angle [Equinox] : 101.4 deg [J2000] 101 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 : 184.2975922 15.3239832 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J121711.42+151926.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 15.10 arcsec 2a = 30.19 arcsec Uncertainty : 0.46 arcsec 0.92 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 : 184.2975922 15.3239832 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J121711.42+151926.3 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.12 arcsec 0.25 arcsec Minor Axis (2b) : ... 2b = 17.32 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.737 b/a = 0.74 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.30 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 105.1 deg [J2000] 105 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 : 184.2975922 15.3239832 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 15 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J121711.42+151926.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.63 arcsec 2a = 17.26 arcsec Uncertainty : 0.04 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 9.18 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.532 b/a = 0.53 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 105.0 deg [J2000] 105 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 : 184.2975922 15.3239832 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 16 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J121711.41+151926.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 78.34 arcsec 2a = 156.69 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 33.64 arcsec 2b = 67.28 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.43 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.57 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.69 Uncertainty : ... ... Cos-1(b/a) : ... 65 deg Position Angle [Equinox] : 101.4 deg [J2000] 101 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 : 184.2975815450 15.3239833998 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 17 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J121711.41+151926.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 15.10 arcsec 2a = 30.19 arcsec Uncertainty : 0.460 arcsec 0.92 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 : 184.2975815450 15.3239833998 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 18 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J121711.41+151926.3 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7492 arcsec 2a = 23.50 arcsec Uncertainty : 0.125 arcsec 0.25 arcsec Minor Axis (2b) : ... 2b = 17.32 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.737 b/a = 0.74 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.30 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 105.1 deg [J2000] 105 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 : 184.2975815450 15.3239833998 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 19 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J121711.41+151926.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.6315 arcsec 2a = 17.26 arcsec Uncertainty : 0.037 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 9.18 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.532 b/a = 0.53 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 105.0 deg [J2000] 105 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 : 184.2975815450 15.3239833998 (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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