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Date and Time of the Query: 2019-05-24 T10:15:06 PDT
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Diameter data point(s) for object MESSIER 083

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
1968MCG4..C...0000V
2.00 arcmin 1.50 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 120.00 ... 0.75 0.25 0.28 41 ...
2 POSS1 103a-O
1968MCG4..C...0000V
10.50 arcmin 10.50 arcmin ... ... ... ... ... High surface brightness 7.40E+14 630.00 ... 1.00 0.00 0.00 0 ...
3 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
18.00 arcmin 18.00 arcmin ... ... ... ... ... About 25.5 B-mag arcsec^-2^ 6.81E+14 1080.00 ... 1.00 0.00 0.00 0 ...
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
922.57 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 922.57 ... 0.85 0.15 0.16 32 45
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
1148.15 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 1148.15 ... 0.85 0.15 0.16 32 45
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
537.03 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
70% total B light 6.81E+14 537.03 ... 0.85 0.15 0.16 32 45
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
645.65 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
80% total B light 6.81E+14 645.65 ... 0.85 0.15 0.16 32 45
[J2000]
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
841.40 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
90% total B light 6.81E+14 841.40 ... 0.85 0.15 0.16 32 45
[J2000]
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
393.55 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
50% total B light, major dia. 6.81E+14 393.55 ... 0.85 0.15 0.16 32 45
[J2000]
10 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
367.28 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 367.28 ... ... ... ... ... ...
11 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
104.93 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 104.93 ... ... ... ... ... ...
12 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
199.39 arcsec ... ... 1.18 (a/b) ... ... ... 44.86
[B1950]
B exponential scale length 6.81E+14 199.39 ... 0.85 0.15 0.16 32 45
[J2000]
13 ESO-LV IIIa-F
1989ESOLV.C...0000L
129.49 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 129.49 ... ... ... ... ... ...
14 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
2.11 log(2a) + 1 ... ... 0.05
log(a/b)
0.01 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 772.90 18.00 0.89 0.11 0.11 27 ...
15 RC3 D_0 (blue)
1991RC3.9.C...0000d
2.12 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 791.00 ... ... ... ... ... ...
16 K_s (LGA/2MASS isophotal)
2003AJ....125..525J
312.4 (a) arcsec ... ... 0.770 (b/a) ... ... ... 45.0
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 624.80 ... 0.77 0.23 0.26 40 45
[J2000]
17 K_s (LGA/2MASS "total")
2003AJ....125..525J
511.3 (a) arcsec ... ... 0.770 (b/a) ... ... ... 45.0
[J2000]
Diameter for "total" magnitude 1.38E+14 1022.60 ... 0.77 0.23 0.26 40 45
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1968MCG4..C...0000V
Published Object Name         : MCG -05-32-050                
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.00       arcmin                   2a = 120.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.50      arcmin              2b = 90.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.75
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.25
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.28
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 41 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          : 133412          -2936    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 1968MCG4..C...0000V Published Object Name : MCG -05-32-050 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 10.50 arcmin 2a = 630.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 10.50 arcmin 2b = 630.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 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 : "Outer" diameter Coordinates Targeted : 133412 -2936 (B1950) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 1982ESOU..C...0000L Published Object Name : ESO 444- G 081 Frequency Targeted : ESO-Uppsala "Quick Blue" IIa-O Major Axis (2a) : 18.00 arcmin 2a = 1080.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 18.00 arcmin 2b = 1080.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 1.00 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.00 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : About 25.5 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 : "Outer" diameter Coordinates Targeted : 133411. -293648. (B1950) Qualifiers : From new, raw data NED Comment : Diameters flagged uncertain.
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 922.57 arcsec 2a = 922.57 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1085.38 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 5 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 1148.15 arcsec 2a = 1148.15 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1350.76 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 26.0 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 6 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 537.03 arcsec 2a = 537.03 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 631.80 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 70% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 7 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 645.65 arcsec 2a = 645.65 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 759.59 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 80% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 8 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 841.40 arcsec 2a = 841.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 989.88 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 90% total B light 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 : Microphotometer scan of photographic plate or film Measured Quantity : Isophotal diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 9 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 393.55 arcsec 2a = 393.55 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 463.00 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 50% total B light, major dia. 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 : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 367.28 arcsec 2a = 367.28 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 : 50% total B light, aperture 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 : Microphotometer scan of photographic plate or film Measured Quantity : Half-light ("effective") diameter Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 11 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 104.93 arcsec 2a = 104.93 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 : B disk exp. scale length 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 : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 12 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 199.39 arcsec 2a = 199.39 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 234.58 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.18 b/a = 0.85 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.15 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.16 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 44.86 deg [B1950] 45 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : B exponential scale length 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 : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 13 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 4440810 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 129.49 arcsec 2a = 129.49 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 : R exponential scale length Frequency : 6400 A 4.68E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Microphotometer scan of photographic plate or film Measured Quantity : Scale length Coordinates Targeted : 203.545837 -29.613333 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 14 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 444- G 081 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 2.11 2a = 772.90 arcsec Uncertainty : 0.01 18.00 arcsec Minor Axis (2b) : ... 2b = 688.65 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.05 b/a = 0.89 Uncertainty : 0.02 0.04 Ellipticity : ... 1 - b/a = 0.11 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.11 Uncertainty : ... ... Cos-1(b/a) : ... 27 deg Position Angle [Equinox] : ... ... 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 : 133700.3 -295204. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 15 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 444- G 081 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 2.12 2a = 791.00 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 : 133700.3 -295204. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 16 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : MESSIER 083 Frequency Targeted : K_s (LGA/2MASS isophotal) Major Axis (2a) : a = 312.4 arcsec 2a = 624.80 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 481.10 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.770 b/a = 0.77 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 45.0 deg [J2000] 45 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 : 204.253830 -29.865761 (J2000) Qualifiers : From new, raw data NED Comment :
No. 17 Published Units: Homogenized Units: Reference Code : 2003AJ....125..525J Published Object Name : MESSIER 083 Frequency Targeted : K_s (LGA/2MASS "total") Major Axis (2a) : a = 511.3 arcsec 2a = 1022.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 787.40 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.770 b/a = 0.77 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.26 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 45.0 deg [J2000] 45 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 : 204.253830 -29.865761 (J2000) Qualifiers : From new, raw data NED Comment :

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