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Date and Time of the Query: 2019-02-15 T22:40:48 PST
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Diameter data point(s) for object NGC 5311

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
2.20 arcmin 1.70 arcmin ... ... ... ... 110
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 132.00 ... 0.77 0.23 0.25 39 110
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
36.6 (a) arcsec ... ... 0.740 (b/a) ... ... ... -80
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 73.20 ... 0.74 0.26 0.29 42 100
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
54.1 (a) arcsec ... ... 0.740 (b/a) ... ... ... -80
[J2000]
Diameter for "total" magnitude 1.38E+14 108.20 ... 0.74 0.26 0.29 42 100
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.55 arcmin 0.40 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 33.00 ... 0.73 0.27 0.31 43 ...
5 POSS1 103a-O
1964MCG2..C...0000V
2.50 arcmin 2.30 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 150.00 ... 0.92 0.08 0.08 23 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.41 log(2a) + 1 ... ... 0.06
log(a/b)
0.05 ... ... 110
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 154.20 18.80 0.87 0.13 0.14 29 110
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.41 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 154.20 ... ... ... ... ... ...
8 r (SDSS Petrosian)
2005SDSS4.C...0000:
8.55 (a) arcsec ... ... ... 0.29 ... ... ... ... 4.77E+14 17.10 0.58 ... ... ... ... ...
9 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
4.97 (a) arcsec ... ... 0.731 (b/a) 0.02 ... ... 101.7
[J2000]
... 4.77E+14 9.93 0.04 0.73 0.27 0.30 43 102
[J2000]
10 r (SDSS Exponential)
2005SDSS4.C...0000:
3.67 (a) arcsec ... ... 0.719 (b/a) 0.01 ... ... 102.3
[J2000]
... 4.77E+14 7.34 0.02 0.72 0.28 0.32 44 102
[J2000]
11 r (SDSS Petrosian)
2007SDSS6.C...0000:
8.55 (a) arcsec ... ... ... 0.292 ... ... ... ... 4.77E+14 17.10 0.58 ... ... ... ... ...
12 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
4.9675 (a) arcsec ... ... 0.731 (b/a) 0.018 ... ... 101.7
[J2000]
... 4.77E+14 9.94 0.04 0.73 0.27 0.30 43 102
[J2000]
13 r (SDSS Exponential)
2007SDSS6.C...0000:
3.6698 (a) arcsec ... ... 0.719 (b/a) 0.011 ... ... 102.3
[J2000]
... 4.77E+14 7.34 0.02 0.72 0.28 0.32 44 102
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 08735                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.20       arcmin                   2a = 132.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.70      arcmin              2b = 102.00 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]      : 110    deg [B1950]                  110 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          : 134648.         +401400.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13485605+3959068 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 36.6 arcsec 2a = 73.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 54.17 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.740 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 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 : 207.233612 39.985199 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13485605+3959068 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 54.1 arcsec 2a = 108.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 80.07 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.740 b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 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 : 207.233612 39.985199 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-28-072 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.55 arcmin 2a = 33.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.73 Uncertainty : ... ... 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] : ... ... 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 : 134642 +4013 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +07-28-072 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.50 arcmin 2a = 150.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 2.30 arcmin 2b = 138.00 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 : 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 : 134642 +4013 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 08735 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.41 2a = 154.20 arcsec Uncertainty : 0.05 18.80 arcsec Minor Axis (2b) : ... 2b = 134.31 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.06 b/a = 0.87 Uncertainty : 0.06 0.13 Ellipticity : ... 1 - b/a = 0.13 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.14 Uncertainty : ... ... Cos-1(b/a) : ... 29 deg Position Angle [Equinox] : 110 deg [J2000] 110 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 : 134855.9 +395907. (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 08735 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.41 2a = 154.20 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 : 134855.9 +395907. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J134856.07+395906.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 8.55 arcsec 2a = 17.10 arcsec Uncertainty : 0.29 arcsec 0.58 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 : 207.2336121 39.9851837 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J134856.07+395906.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 4.97 arcsec 2a = 9.93 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 7.26 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.731 b/a = 0.73 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.30 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 101.7 deg [J2000] 102 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 : 207.2336121 39.9851837 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 10 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J134856.07+395906.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.67 arcsec 2a = 7.34 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 5.28 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.719 b/a = 0.72 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 102.3 deg [J2000] 102 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 : 207.2336121 39.9851837 (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 J134856.07+395906.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 8.55 arcsec 2a = 17.10 arcsec Uncertainty : 0.292 arcsec 0.58 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 : 207.2336313903 39.9851852757 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J134856.07+395906.6 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 4.9675 arcsec 2a = 9.94 arcsec Uncertainty : 0.018 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 7.26 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.731 b/a = 0.73 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.27 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.30 Uncertainty : ... ... Cos-1(b/a) : ... 43 deg Position Angle [Equinox] : 101.7 deg [J2000] 102 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 : 207.2336313903 39.9851852757 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J134856.07+395906.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 3.6698 arcsec 2a = 7.34 arcsec Uncertainty : 0.011 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 5.28 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.719 b/a = 0.72 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.28 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.32 Uncertainty : ... ... Cos-1(b/a) : ... 44 deg Position Angle [Equinox] : 102.3 deg [J2000] 102 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 : 207.2336313903 39.9851852757 (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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