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Date and Time of the Query: 2019-08-25 T10:49:15 PDT
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Diameter data point(s) for object NGC 7603

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
1.40 arcmin 0.90 arcmin ... ... ... ... 165
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 84.00 ... 0.64 0.36 0.41 50 165
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
31.2 (a) arcsec ... ... 0.700 (b/a) ... ... ... -10
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 62.40 ... 0.70 0.30 0.34 46 170
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
46.9 (a) arcsec ... ... 0.700 (b/a) ... ... ... -10
[J2000]
Diameter for "total" magnitude 1.38E+14 93.70 ... 0.70 0.30 0.34 46 170
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
0.40 arcmin 0.30 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 24.00 ... 0.75 0.25 0.28 41 ...
5 POSS1 103a-O
1963MCG3..C...0000V
1.60 arcmin 1.00 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 96.00 ... 0.62 0.38 0.44 51 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.19 log(2a) + 1 ... ... 0.18
log(a/b)
0.04 ... ... 165
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 92.90 9.00 0.66 0.34 0.39 49 165
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.20 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 95.10 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
50.37 (a) arcsec 29.69 arcsec ... ... ... ... 151.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 100.74 ... 0.59 0.41 0.48 54 152
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
9.24 (a) arcsec ... ... ... 0.218 ... ... ... ... 4.77E+14 18.48 0.44 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.3153 (a) arcsec ... ... 0.621 (b/a) 0.068 ... ... 156.6
[J2000]
... 4.77E+14 8.63 0.14 0.62 0.38 0.44 52 157
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
5.2740 (a) arcsec ... ... 0.727 (b/a) 0.046 ... ... 157.8
[J2000]
... 4.77E+14 10.55 0.09 0.73 0.27 0.31 43 158
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 12493                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.40       arcmin                   2a = 84.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.90      arcmin              2b = 54.00 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] = 0.41
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 50 deg
Position Angle [Equinox]      : 165    deg [B1950]                  165 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          : 231624.         -000100.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23185663+0014376 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 31.2 arcsec 2a = 62.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 43.68 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] : -10 deg [J2000] 170 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 : 349.736053 0.243835 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J23185663+0014376 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 46.9 arcsec 2a = 93.70 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 65.59 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] : -10 deg [J2000] 170 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 : 349.736053 0.243835 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +00-59-021 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.40 arcmin 2a = 24.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.75 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.25 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.28 Uncertainty : ... ... Cos-1(b/a) : ... 41 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 : 231624 -0002 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +00-59-021 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.60 arcmin 2a = 96.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.00 arcmin 2b = 60.00 arcsec Uncertainty : ... ... Axis Ratio : ... 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) : ... 51 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Intermed. 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 : 231624 -0002 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12493 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.19 2a = 92.90 arcsec Uncertainty : 0.04 9.00 arcsec Minor Axis (2b) : ... 2b = 61.41 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.18 b/a = 0.66 Uncertainty : 0.04 0.06 Ellipticity : ... 1 - b/a = 0.34 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.39 Uncertainty : ... ... Cos-1(b/a) : ... 49 deg Position Angle [Equinox] : 165 deg [J2000] 165 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 : 231856.5 +001437. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 12493 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.20 2a = 95.10 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 : 231856.5 +001437. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J231856.65+001437.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 50.37 arcsec 2a = 100.74 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 29.69 arcsec 2b = 59.38 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.59 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.41 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.48 Uncertainty : ... ... Cos-1(b/a) : ... 54 deg Position Angle [Equinox] : 151.5 deg [J2000] 152 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 : 349.7360566086 0.2438715036 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J231856.65+001437.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 9.24 arcsec 2a = 18.48 arcsec Uncertainty : 0.218 arcsec 0.44 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 : 349.7360566086 0.2438715036 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J231856.65+001437.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.3153 arcsec 2a = 8.63 arcsec Uncertainty : 0.068 arcsec 0.14 arcsec Minor Axis (2b) : ... 2b = 5.36 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.621 b/a = 0.62 Uncertainty : 0.010 0.01 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] : 156.6 deg [J2000] 157 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 : 349.7360566086 0.2438715036 (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 J231856.65+001437.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.2740 arcsec 2a = 10.55 arcsec Uncertainty : 0.046 arcsec 0.09 arcsec Minor Axis (2b) : ... 2b = 7.67 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.727 b/a = 0.73 Uncertainty : 0.009 0.01 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] : 157.8 deg [J2000] 158 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 : 349.7360566086 0.2438715036 (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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