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Date and Time of the Query: 2019-06-20 T03:25:40 PDT
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Diameter data point(s) for object NGC 4539

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
3.00 arcmin 1.10 arcmin ... ... ... ... 95
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 180.00 ... 0.37 0.63 0.76 68 95
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
65.0 (a) arcsec ... ... 0.340 (b/a) ... ... ... -80
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 130.00 ... 0.34 0.66 0.79 70 100
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
113.7 (a) arcsec ... ... 0.340 (b/a) ... ... ... -80
[J2000]
Diameter for "total" magnitude 1.38E+14 227.40 ... 0.34 0.66 0.79 70 100
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.70 arcmin 0.30 arcmin ... ... ... ... ... High surface brightness 7.40E+14 42.00 ... 0.43 0.57 0.69 65 ...
5 POSS1 103a-O
1964MCG2..C...0000V
3.80 arcmin 1.80 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 228.00 ... 0.47 0.53 0.63 62 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.52 log(2a) + 1 ... ... 0.39
log(a/b)
0.02 ... ... 95
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 198.70 9.40 0.41 0.59 0.72 66 95
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.53 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 203.30 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
113.36 (a) arcsec 28.30 arcsec ... ... ... ... 95.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 226.73 ... 0.25 0.75 0.88 76 96
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
19.66 (a) arcsec ... ... ... 6.269 ... ... ... ... 4.77E+14 39.33 12.54 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7497 (a) arcsec ... ... 0.552 (b/a) 0.097 ... ... 95.9
[J2000]
... 4.77E+14 23.50 0.19 0.55 0.45 0.53 56 96
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
8.8040 (a) arcsec ... ... 0.372 (b/a) 0.047 ... ... 93.9
[J2000]
... 4.77E+14 17.61 0.10 0.37 0.63 0.76 68 94
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 07735                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 3.00       arcmin                   2a = 180.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.10      arcmin              2b = 66.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.37
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.63
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.76
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 68 deg
Position Angle [Equinox]      :  95    deg [B1950]                  95 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          : 123200.         +182800.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12343476+1812092 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 65.0 arcsec 2a = 130.00 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 44.20 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.340 b/a = 0.34 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.66 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.79 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : -80 deg [J2000] 100 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 : 188.644836 18.202606 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J12343476+1812092 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 113.7 arcsec 2a = 227.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 77.32 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.340 b/a = 0.34 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.66 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.79 Uncertainty : ... ... Cos-1(b/a) : ... 70 deg Position Angle [Equinox] : -80 deg [J2000] 100 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 : 188.644836 18.202606 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-32-071 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.70 arcmin 2a = 42.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.30 arcmin 2b = 18.00 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] : ... ... 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 : "Inner" diameter Coordinates Targeted : 123200 +1829 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +03-32-071 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 3.80 arcmin 2a = 228.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.80 arcmin 2b = 108.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.47 Uncertainty : ... ... 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] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 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 : 123200 +1829 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 07735 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.52 2a = 198.70 arcsec Uncertainty : 0.02 9.40 arcsec Minor Axis (2b) : ... 2b = 80.87 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.39 b/a = 0.41 Uncertainty : 0.04 0.04 Ellipticity : ... 1 - b/a = 0.59 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.72 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 95 deg [J2000] 95 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 : 123435.0 +181209. (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 07735 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.53 2a = 203.30 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 : 123435.0 +181209. (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 J123434.73+181209.6 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 113.36 arcsec 2a = 226.73 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 28.30 arcsec 2b = 56.60 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.25 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.75 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.88 Uncertainty : ... ... Cos-1(b/a) : ... 76 deg Position Angle [Equinox] : 95.5 deg [J2000] 96 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 : 188.6447475560 18.2026836874 (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 J123434.73+181209.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 19.66 arcsec 2a = 39.33 arcsec Uncertainty : 6.269 arcsec 12.54 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 : 188.6447475560 18.2026836874 (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 J123434.73+181209.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7497 arcsec 2a = 23.50 arcsec Uncertainty : 0.097 arcsec 0.19 arcsec Minor Axis (2b) : ... 2b = 12.97 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.552 b/a = 0.55 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.45 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.53 Uncertainty : ... ... Cos-1(b/a) : ... 56 deg Position Angle [Equinox] : 95.9 deg [J2000] 96 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 : 188.6447475560 18.2026836874 (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 J123434.73+181209.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 8.8040 arcsec 2a = 17.61 arcsec Uncertainty : 0.047 arcsec 0.10 arcsec Minor Axis (2b) : ... 2b = 6.55 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.372 b/a = 0.37 Uncertainty : 0.002 0.00 Ellipticity : ... 1 - b/a = 0.63 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.76 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : 93.9 deg [J2000] 94 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 : 188.6447475560 18.2026836874 (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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