NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-11-15 T11:10:24 PST
Help | Comment | NED Home

Diameter data point(s) for object NGC 5645

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
3.20 arcmin 1.70 arcmin ... ... ... ... 80
[B1950]
About 25.0 B-mag arcsec^-2^ 7.40E+14 192.00 ... 0.53 0.47 0.56 58 80
[J2000]
2 K_s (2MASS isophotal)
20032MASX.C.......:
42.3 (a) arcsec ... ... 0.700 (b/a) ... ... ... -70
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 84.60 ... 0.70 0.30 0.34 46 110
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
75.2 (a) arcsec ... ... 0.700 (b/a) ... ... ... -70
[J2000]
Diameter for "total" magnitude 1.38E+14 150.40 ... 0.70 0.30 0.34 46 110
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
0.90 arcmin 0.50 arcmin ... ... ... ... ... High surface brightness 7.40E+14 54.00 ... 0.56 0.44 0.53 56 ...
5 POSS1 103a-O
1963MCG3..C...0000V
2.20 arcmin 1.40 arcmin ... ... ... ... ... Intermed. surface brightness 7.40E+14 132.00 ... 0.64 0.36 0.42 51 ...
6 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.38 log(2a) + 1 ... ... 0.20
log(a/b)
0.03 ... ... 80
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 143.90 10.30 0.63 0.37 0.43 51 80
[J2000]
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.38 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 143.90 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2006SDSS5.C...0000:
86.18 (a) arcsec 32.49 arcsec ... ... ... ... 78.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 172.35 ... 0.38 0.62 0.75 68 78
[J2000]
9 r (SDSS Petrosian)
2006SDSS5.C...0000:
14.96 (a) arcsec ... ... ... 0.50 ... ... ... ... 4.77E+14 29.93 0.99 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
11.75 (a) arcsec ... ... 0.763 (b/a) 0.07 ... ... 103.1
[J2000]
... 4.77E+14 23.50 0.14 0.76 0.24 0.26 40 103
[J2000]
11 r (SDSS Exponential)
2006SDSS5.C...0000:
7.41 (a) arcsec ... ... 0.592 (b/a) 0.03 ... ... 96.3
[J2000]
... 4.77E+14 14.82 0.06 0.59 0.41 0.48 54 96
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
86.18 (a) arcsec 32.49 arcsec ... ... ... ... 78.2
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 172.35 ... 0.38 0.62 0.75 68 78
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
14.96 (a) arcsec ... ... ... 0.496 ... ... ... ... 4.77E+14 29.93 0.99 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
11.7484 (a) arcsec ... ... 0.763 (b/a) 0.069 ... ... 103.1
[J2000]
... 4.77E+14 23.50 0.14 0.76 0.24 0.26 40 103
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
7.4112 (a) arcsec ... ... 0.592 (b/a) 0.032 ... ... 96.3
[J2000]
... 4.77E+14 14.82 0.07 0.59 0.41 0.48 54 96
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 09328                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 3.20       arcmin                   2a = 192.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.70      arcmin              2b = 102.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.53
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.47
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.56
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 58 deg
Position Angle [Equinox]      :  80    deg [B1950]                  80 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          : 142812.         +073000.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Major diameter flagged uncertain.       

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J14303940+0716300 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 42.3 arcsec 2a = 84.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 59.22 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] : -70 deg [J2000] 110 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 : 217.664169 7.274972 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J14303940+0716300 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 75.2 arcsec 2a = 150.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 105.28 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] : -70 deg [J2000] 110 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 : 217.664169 7.274972 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-37-019 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.90 arcmin 2a = 54.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.50 arcmin 2b = 30.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.56 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.44 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.53 Uncertainty : ... ... Cos-1(b/a) : ... 56 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 : 142812 +0730 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +01-37-019 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 2.20 arcmin 2a = 132.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 1.40 arcmin 2b = 84.00 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] = 0.42 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 : 142812 +0730 (B1950) Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 09328 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.38 2a = 143.90 arcsec Uncertainty : 0.03 10.30 arcsec Minor Axis (2b) : ... 2b = 90.80 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.20 b/a = 0.63 Uncertainty : 0.04 0.06 Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 80 deg [J2000] 80 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 : 143039.3 +071633. (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 09328 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.38 2a = 143.90 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 : 143039.3 +071633. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2006SDSS5.C...0000: Published Object Name : SDSS J143039.35+071630.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 86.18 arcsec 2a = 172.35 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 32.49 arcsec 2b = 64.98 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 217.6639557 7.2750945 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J143039.35+071630.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 14.96 arcsec 2a = 29.93 arcsec Uncertainty : 0.50 arcsec 0.99 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 : 217.6639557 7.2750945 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J143039.35+071630.3 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 11.75 arcsec 2a = 23.50 arcsec Uncertainty : 0.07 arcsec 0.14 arcsec Minor Axis (2b) : ... 2b = 17.93 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.763 b/a = 0.76 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 103.1 deg [J2000] 103 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 : 217.6639557 7.2750945 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J143039.35+071630.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.41 arcsec 2a = 14.82 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 8.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.592 b/a = 0.59 Uncertainty : 0.003 0.00 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] : 96.3 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 : 217.6639557 7.2750945 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J143039.34+071630.3 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 86.18 arcsec 2a = 172.35 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 32.49 arcsec 2b = 64.98 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 217.6639487497 7.2750942808 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J143039.34+071630.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 14.96 arcsec 2a = 29.93 arcsec Uncertainty : 0.496 arcsec 0.99 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 : 217.6639487497 7.2750942808 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J143039.34+071630.3 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 11.7484 arcsec 2a = 23.50 arcsec Uncertainty : 0.069 arcsec 0.14 arcsec Minor Axis (2b) : ... 2b = 17.93 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.763 b/a = 0.76 Uncertainty : 0.004 0.00 Ellipticity : ... 1 - b/a = 0.24 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 103.1 deg [J2000] 103 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 : 217.6639487497 7.2750942808 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 15 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J143039.34+071630.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 7.4112 arcsec 2a = 14.82 arcsec Uncertainty : 0.032 arcsec 0.07 arcsec Minor Axis (2b) : ... 2b = 8.77 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.592 b/a = 0.59 Uncertainty : 0.003 0.00 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] : 96.3 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 : 217.6639487497 7.2750942808 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

Back to NED Home