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Date and Time of the Query: 2022-01-17 T23:15:10 PST
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Diameter data point(s) for object NGC 7479

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
4.40 arcmin 3.40 arcmin ... ... ... ... 25
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 264.00 ... 0.77 0.23 0.25 39 25
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
87.9 (a) arcsec ... ... 0.300 (b/a) ... ... ... 10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 175.80 ... 0.30 0.70 0.83 73 10
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
120.8 (a) arcsec ... ... 0.300 (b/a) ... ... ... 10
[J2000]
Diameter for "total" magnitude 1.38E+14 241.60 ... 0.30 0.70 0.83 73 10
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
2.30 arcmin 0.70 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 138.00 ... 0.30 0.70 0.83 72 ...
5 POSS1 103a-O
1963MCG3..C...0000V
4.00 arcmin 3.30 arcmin ... ... ... ... ... High surface brightness 7.40E+14 240.00 ... 0.82 0.18 0.19 34 ...
6 B (Johnson)
1994A&AS..106..451D
109.0 (a) arcsec ... ... ... 2.2 ... ... ... 25 B-mag arcsec^-2^ 6.81E+14 218.00 4.40 ... ... ... ... ...
7 R (Kron-Cousins)
1994A&AS..106..451D
113.5 (a) arcsec ... ... 0.77 (b/a) 4.0 ... ... 40.5
[J2000]
23.5 R-mag arcsec^-2^ 4.68E+14 227.00 8.00 0.77 0.23 0.26 40 41
[J2000]
8 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.61 log(2a) + 1 ... ... 0.12
log(a/b)
0.02 ... ... 25
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 244.40 11.50 0.76 0.24 0.27 41 25
[J2000]
9 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
1.28 log(2a) + 1 ... ... ... 0.02 ... ... ... ... 6.81E+14 114.30 5.40 ... ... ... ... ...
10 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.63 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 255.90 ... ... ... ... ... ...
11 0.5-7 keV Chandra
2020CSC...C2..0000:
0.46553371 arcsec 0.46553371 arcsec ... 0.17779865 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 0.47 0.18 0.47 0.53 0.64 62 0
[J2000]
12 0.2-0.5 keV Chandra
2020CSC...C2..0000:
0.53390121 arcsec 0.53390121 arcsec ... 0.19584319 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.67E+16 0.53 0.20 0.53 0.47 0.56 58 0
[J2000]
13 1.2-2 keV Chandra
2020CSC...C2..0000:
4.94577897 arcsec 4.94577897 arcsec ... 0.70541831 ... ... 0.0
[J2000]
extent deconvolved with PSF 3.77E+17 4.95 0.71 4.95 -3.95 0.92 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 12343                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 4.40       arcmin                   2a = 264.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  3.40      arcmin              2b = 204.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.77
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.23
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.25
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 39 deg
Position Angle [Equinox]      :  25    deg [B1950]                  25 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          : 230224.         +120300.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23045666+1219223 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 87.9 arcsec 2a = 175.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 52.74 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] : 10 deg [J2000] 10 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 : 346.236053 12.322888 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23045666+1219223 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 120.8 arcsec 2a = 241.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 72.48 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] : 10 deg [J2000] 10 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 : 346.236053 12.322888 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-58-060 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.30 arcmin 2a = 138.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.70 arcmin 2b = 42.00 arcsec Uncertainty : ... ... Axis Ratio : ... 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) : ... 72 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 : 230224 +1203 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-58-060 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 4.00 arcmin 2a = 240.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 3.30 arcmin 2b = 198.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.82 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.18 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : 230224 +1203 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 12343 Frequency Targeted : B (Johnson) Major Axis (2a) : a = 109.0 arcsec 2a = 218.00 arcsec Uncertainty : 2.2 arcsec 4.40 arcsec Minor Axis (2b) : ... 2b = -217782.00 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. 7 Published Units: Homogenized Units: Reference Code : 1994A&AS..106..451D Published Object Name : UGC 12343 Frequency Targeted : R (Kron-Cousins) Major Axis (2a) : a = 113.5 arcsec 2a = 227.00 arcsec Uncertainty : 4.0 arcsec 8.00 arcsec Minor Axis (2b) : ... 2b = 174.79 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.77 b/a = 0.77 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 40.5 deg [J2000] 41 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. 8 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12343 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.61 2a = 244.40 arcsec Uncertainty : 0.02 11.50 arcsec Minor Axis (2b) : ... 2b = 185.50 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.12 b/a = 0.76 Uncertainty : 0.02 0.04 Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.27 Uncertainty : ... ... Cos-1(b/a) : ... 41 deg Position Angle [Equinox] : 25 deg [J2000] 25 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 : 230457.1 +121918. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12343 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 1.28 2a = 114.30 arcsec Uncertainty : 0.02 5.40 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : ... 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 : 230457.1 +121918. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 10 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12343 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.63 2a = 255.90 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 : 230457.1 +121918. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 11 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-7 keV Chandra Major Axis (2a) : 0.46553371 arcsec 2a = 0.47 arcsec Uncertainty : 0.17779865 arcsec 0.18 arcsec Minor Axis (2b) : 2b = 0.46553371 arcsec 2b = 0.47 arcsec Uncertainty : 0.17779865 0.18 Axis Ratio : ... b/a = 0.47 Uncertainty : ... 0.18 Ellipticity : ... 1 - b/a = 0.53 Uncertainty : ... 0.18 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.64 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 2.3 keV 5.56E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 12 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.2-0.5 keV Chandra Major Axis (2a) : 0.53390121 arcsec 2a = 0.53 arcsec Uncertainty : 0.19584319 arcsec 0.20 arcsec Minor Axis (2b) : 2b = 0.53390121 arcsec 2b = 0.53 arcsec Uncertainty : 0.19584319 0.20 Axis Ratio : ... b/a = 0.53 Uncertainty : ... 0.20 Ellipticity : ... 1 - b/a = 0.47 Uncertainty : ... 0.20 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.56 Uncertainty : ... ... Cos-1(b/a) : ... 58 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.4 keV 9.67E+16 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 1.2-2 keV Chandra Major Axis (2a) : 4.94577897 arcsec 2a = 4.95 arcsec Uncertainty : 0.70541831 arcsec 0.71 arcsec Minor Axis (2b) : 2b = 4.94577897 arcsec 2b = 4.95 arcsec Uncertainty : 0.70541831 0.71 Axis Ratio : ... b/a = 4.95 Uncertainty : ... 0.71 Ellipticity : ... 1 - b/a = -3.95 Uncertainty : ... 0.71 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.92 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 1.56 keV 3.77E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :

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