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Date and Time of the Query: 2022-01-24 T19:18:45 PST
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Diameter data point(s) for object NGC 4565C

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
1.00 arcmin 0.10 arcmin ... ... ... ... 142
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 60.00 ... 0.10 0.90 0.98 84 142
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
15.7 (a) arcsec ... ... 0.260 (b/a) ... ... ... -40
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 31.40 ... 0.26 0.74 0.87 75 140
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
29.1 (a) arcsec ... ... 0.260 (b/a) ... ... ... -40
[J2000]
Diameter for "total" magnitude 1.38E+14 58.20 ... 0.26 0.74 0.87 75 140
[J2000]
4 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.99 log(2a) + 1 ... ... 0.95
log(a/b)
0.08 ... ... 142
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 58.60 11.90 0.11 0.89 0.98 84 142
[J2000]
5 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.99 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 58.60 ... ... ... ... ... ...
6 r (SDSS Isophotal)
2007SDSS6.C...0000:
41.54 (a) arcsec 6.39 arcsec ... ... ... ... 141.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 83.07 ... 0.15 0.85 0.95 81 141
[J2000]
7 r (SDSS Petrosian)
2007SDSS6.C...0000:
8.01 (a) arcsec ... ... ... 2.301 ... ... ... ... 4.77E+14 16.02 4.60 ... ... ... ... ...
8 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7496 (a) arcsec ... ... 0.234 (b/a) 0.242 ... ... 147.4
[J2000]
... 4.77E+14 23.50 0.48 0.23 0.77 0.90 76 147
[J2000]
9 r (SDSS Exponential)
2007SDSS6.C...0000:
5.4842 (a) arcsec ... ... 0.179 (b/a) 0.046 ... ... 146.4
[J2000]
... 4.77E+14 10.97 0.09 0.18 0.82 0.94 80 146
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07764                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.00       arcmin                   2a = 60.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.10      arcmin              2b = 6.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.10
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.90
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.98
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 84 deg
Position Angle [Equinox]      : 142    deg [B1950]                  142 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          : 123318.         +263300.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12354145+2617077 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 15.7 arcsec 2a = 31.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 8.16 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.260 b/a = 0.26 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.74 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.87 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : -40 deg [J2000] 140 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 : 188.922638 26.285551 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12354145+2617077 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 29.1 arcsec 2a = 58.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 15.13 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.260 b/a = 0.26 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.74 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.87 Uncertainty : ... ... Cos-1(b/a) : ... 75 deg Position Angle [Equinox] : -40 deg [J2000] 140 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 : 188.922638 26.285551 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07764 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.99 2a = 58.60 arcsec Uncertainty : 0.08 11.90 arcsec Minor Axis (2b) : ... 2b = 6.56 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.95 b/a = 0.11 Uncertainty : 0.06 0.02 Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 142 deg [J2000] 142 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 : 123536.0 +261700. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07764 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.99 2a = 58.60 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 : 123536.0 +261700. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123541.42+261708.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 41.54 arcsec 2a = 83.07 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 6.39 arcsec 2b = 12.78 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.15 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.85 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.95 Uncertainty : ... ... Cos-1(b/a) : ... 81 deg Position Angle [Equinox] : 141.2 deg [J2000] 141 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 : 188.9226022839 26.2858324477 (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 J123541.42+261708.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 8.01 arcsec 2a = 16.02 arcsec Uncertainty : 2.301 arcsec 4.60 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 : 188.9226022839 26.2858324477 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J123541.42+261708.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7496 arcsec 2a = 23.50 arcsec Uncertainty : 0.242 arcsec 0.48 arcsec Minor Axis (2b) : ... 2b = 5.50 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.234 b/a = 0.23 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 147.4 deg [J2000] 147 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 : 188.9226022839 26.2858324477 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 9 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J123541.42+261708.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.4842 arcsec 2a = 10.97 arcsec Uncertainty : 0.046 arcsec 0.09 arcsec Minor Axis (2b) : ... 2b = 1.96 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.179 b/a = 0.18 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.82 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.94 Uncertainty : ... ... Cos-1(b/a) : ... 80 deg Position Angle [Equinox] : 146.4 deg [J2000] 146 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 : 188.9226022839 26.2858324477 (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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