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Date and Time of the Query: 2019-06-19 T10:06:28 PDT
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Diameter data point(s) for object NGC 5056

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
1.90 arcmin 0.90 arcmin ... ... ... ... 0
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 114.00 ... 0.47 0.53 0.63 62 360
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
34.6 (a) arcsec ... ... 0.580 (b/a) ... ... ... 5
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 69.20 ... 0.58 0.42 0.50 55 5
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
67.2 (a) arcsec ... ... 0.580 (b/a) ... ... ... 5
[J2000]
Diameter for "total" magnitude 1.38E+14 134.50 ... 0.58 0.42 0.50 55 5
[J2000]
4 POSS1 103a-O
1964MCG2..C...0000V
0.60 arcmin 0.40 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 36.00 ... 0.67 0.33 0.38 48 ...
5 POSS1 103a-O
1964MCG2..C...0000V
1.60 arcmin 1.10 arcmin ... ... ... ... ... Low surface brightness 7.40E+14 96.00 ... 0.69 0.31 0.36 47 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.24 log(2a) + 1 ... ... 0.24
log(a/b)
0.03 ... ... 0
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 104.30 7.50 0.57 0.43 0.50 55 360
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.25 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 106.70 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2007SDSS6.C...0000:
53.93 (a) arcsec 25.03 arcsec ... ... ... ... 1.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 107.86 ... 0.46 0.54 0.65 62 1
[J2000]
9 r (SDSS Petrosian)
2007SDSS6.C...0000:
10.70 (a) arcsec ... ... ... 0.632 ... ... ... ... 4.77E+14 21.39 1.26 ... ... ... ... ...
10 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
9.9255 (a) arcsec ... ... 0.600 (b/a) 0.058 ... ... 1.1
[J2000]
... 4.77E+14 19.85 0.12 0.60 0.40 0.47 53 1
[J2000]
11 r (SDSS Exponential)
2007SDSS6.C...0000:
5.4804 (a) arcsec ... ... 0.573 (b/a) 0.019 ... ... 1.8
[J2000]
... 4.77E+14 10.96 0.04 0.57 0.43 0.51 55 2
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 08337                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 1.90       arcmin                   2a = 114.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  0.90      arcmin              2b = 54.00 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]      :   0    deg [B1950]                  360 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          : 131348.         +311200.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13161233+3057009 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 34.6 arcsec 2a = 69.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 40.14 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.580 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 5 deg [J2000] 5 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 : 199.051376 30.950289 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J13161233+3057009 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 67.2 arcsec 2a = 134.50 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 78.01 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.580 b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 5 deg [J2000] 5 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 : 199.051376 30.950289 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +05-31-166 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.60 arcmin 2a = 36.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.40 arcmin 2b = 24.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 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 : 131348 +3114 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1964MCG2..C...0000V Published Object Name : MCG +05-31-166 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 1.60 arcmin 2a = 96.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.10 arcmin 2b = 66.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.69 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.31 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.36 Uncertainty : ... ... Cos-1(b/a) : ... 47 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 : 131348 +3114 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 08337 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.24 2a = 104.30 arcsec Uncertainty : 0.03 7.50 arcsec Minor Axis (2b) : ... 2b = 59.97 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.24 b/a = 0.57 Uncertainty : 0.04 0.06 Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 0 deg [J2000] 360 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 : 131612.3 +305659. (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 08337 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.25 2a = 106.70 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 : 131612.3 +305659. (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 J131612.32+305701.1 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 53.93 arcsec 2a = 107.86 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 25.03 arcsec 2b = 50.06 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.46 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.54 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.65 Uncertainty : ... ... Cos-1(b/a) : ... 62 deg Position Angle [Equinox] : 1.0 deg [J2000] 1 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 : 199.0513439557 30.9503213926 (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 J131612.32+305701.1 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 10.70 arcsec 2a = 21.39 arcsec Uncertainty : 0.632 arcsec 1.26 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 : 199.0513439557 30.9503213926 (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 J131612.32+305701.1 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 9.9255 arcsec 2a = 19.85 arcsec Uncertainty : 0.058 arcsec 0.12 arcsec Minor Axis (2b) : ... 2b = 11.91 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.600 b/a = 0.60 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.40 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.47 Uncertainty : ... ... Cos-1(b/a) : ... 53 deg Position Angle [Equinox] : 1.1 deg [J2000] 1 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 : 199.0513439557 30.9503213926 (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 J131612.32+305701.1 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 5.4804 arcsec 2a = 10.96 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 6.28 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.573 b/a = 0.57 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.51 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 1.8 deg [J2000] 2 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 : 199.0513439557 30.9503213926 (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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