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Date and Time of the Query: 2019-06-24 T21:50:42 PDT
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Diameter data point(s) for object NGC 7559A

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
1.30 arcmin 1.20 arcmin ... ... ... ... ... About 25.0 B-mag arcsec^-2^ 7.40E+14 78.00 ... 0.92 0.08 0.08 23 ...
2 POSS1 103a-O
1963MCG3..C...0000V
0.20 arcmin 0.10 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 12.00 ... 0.50 0.50 0.60 60 ...
3 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.11 log(2a) + 1 ... ... 0.03
log(a/b)
0.08 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 77.30 15.60 0.93 0.07 0.07 21 ...
4 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.12 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 79.10 ... ... ... ... ... ...
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
15.16 (a) arcsec 12.85 arcsec ... ... ... ... 38.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 30.32 ... 0.85 0.15 0.16 32 38
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
4.52 (a) arcsec ... ... ... 0.208 ... ... ... ... 4.77E+14 9.03 0.42 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.0562 (a) arcsec ... ... 0.506 (b/a) 0.064 ... ... 33.6
[J2000]
... 4.77E+14 10.11 0.13 0.51 0.49 0.59 60 34
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
2.0128 (a) arcsec ... ... 0.474 (b/a) 0.019 ... ... 33.8
[J2000]
... 4.77E+14 4.03 0.04 0.47 0.53 0.63 62 34
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 12463                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.30       arcmin                   2a = 78.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.20      arcmin              2b = 72.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.92
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.08
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.08
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 23 deg
Position Angle [Equinox]      : ...                                 ...
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          : 231318.         +130100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +02-59-014 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.20 arcmin 2a = 12.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.10 arcmin 2b = 6.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.50 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.50 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.60 Uncertainty : ... ... Cos-1(b/a) : ... 60 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 : 231312 +1300 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12463 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.11 2a = 77.30 arcsec Uncertainty : 0.08 15.60 arcsec Minor Axis (2b) : ... 2b = 72.12 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.03 b/a = 0.93 Uncertainty : 0.04 0.09 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 21 deg Position Angle [Equinox] : ... ... 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 : 231548.0 +131700. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12463 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.12 2a = 79.10 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 : 231548.0 +131700. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 5 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J231545.99+131749.0 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 15.16 arcsec 2a = 30.32 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 12.85 arcsec 2b = 25.70 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 38.0 deg [J2000] 38 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 : 348.9416395913 13.2969520196 (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 J231545.99+131749.0 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.52 arcsec 2a = 9.03 arcsec Uncertainty : 0.208 arcsec 0.42 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 : 348.9416395913 13.2969520196 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J231545.99+131749.0 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.0562 arcsec 2a = 10.11 arcsec Uncertainty : 0.064 arcsec 0.13 arcsec Minor Axis (2b) : ... 2b = 5.12 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.506 b/a = 0.51 Uncertainty : 0.007 0.01 Ellipticity : ... 1 - b/a = 0.49 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.59 Uncertainty : ... ... Cos-1(b/a) : ... 60 deg Position Angle [Equinox] : 33.6 deg [J2000] 34 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 : 348.9416395913 13.2969520196 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J231545.99+131749.0 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.0128 arcsec 2a = 4.03 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 1.91 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.474 b/a = 0.47 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.53 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.63 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 33.8 deg [J2000] 34 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 : 348.9416395913 13.2969520196 (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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