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Date and Time of the Query: 2019-05-24 T08:27:59 PDT
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Diameter data point(s) for object Large Magellanic Cloud

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 ESO-Uppsala "Quick Blue" IIa-O
1982ESOU..C...0000L
2.40 arcmin 2.40 arcmin ... ... ... ... 170
[B1950]
About 25.5 B-mag arcsec^-2^ 6.81E+14 144.00 ... 1.00 0.00 0.00 0 171
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
... ... ... ... 1.18 (a/b) ... ... ... 134.97
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 ... ... 0.85 0.15 0.17 32 136
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
193.21 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 193.21 ... ... ... ... ... ...
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
... ... ... ... 1.18 (a/b) ... ... ... 134.97
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 ... ... 0.85 0.15 0.17 32 136
[J2000]
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
3.81 log(2a) + 1 ... ... 0.07
log(a/b)
0.05 ... ... 170
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 38739.20 4726.90 0.85 0.15 0.16 32 171
[J2000]
6 RC3 D_0 (blue)
1991RC3.9.C...0000d
3.84 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 41509.80 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1982ESOU..C...0000L
Published Object Name         : ESO 056- G 115                
Frequency Targeted            : ESO-Uppsala "Quick Blue" IIa-O
Major Axis (2a)               : 2.40       arcmin                   2a = 144.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =   2.40     arcmin              2b = 144.00 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]      : 170    deg [B1950]                  171 deg [J2000]
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          : 052400.         -694800.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : PA flagged uncertain.                   

No. 2 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 0561150 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis : ... ... Uncertainty : ... ... Minor Axis (2b) : ... 2b = -1180.85 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] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 134.97 deg [B1950] 136 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 : 81.000000 -69.800003 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote; no diameter given
No. 3 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 0561150 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 193.21 arcsec 2a = 193.21 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 : 81.000000 -69.800003 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 0561150 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis : ... ... Uncertainty : ... ... Minor Axis (2b) : ... 2b = -1180.85 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] = 0.17 Uncertainty : ... ... Cos-1(b/a) : ... 32 deg Position Angle [Equinox] : 134.97 deg [B1950] 136 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 : Scale length Coordinates Targeted : 81.000000 -69.800003 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : a/b from fits to octant data
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 056- G 115 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 3.81 2a = 38739.20 arcsec Uncertainty : 0.05 4726.90 arcsec Minor Axis (2b) : ... 2b = 32967.06 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.07 b/a = 0.85 Uncertainty : 0.04 0.08 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] : 170 deg [J2000] 171 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 : 052334.7 -694522. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 056- G 115 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 3.84 2a = 41509.80 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 : 052334.7 -694522. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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