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Date and Time of the Query: 2019-04-25 T19:02:39 PDT
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Diameter data point(s) for object NGC 6854B

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-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
117.49 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 117.49 ... 0.64 0.36 0.42 50 156
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
186.21 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
26.0 B-mag arcsec^-2^ 6.81E+14 186.21 ... 0.64 0.36 0.42 50 156
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
96.61 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
70% total B light 6.81E+14 96.61 ... 0.64 0.36 0.42 50 156
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
131.83 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
80% total B light 6.81E+14 131.83 ... 0.64 0.36 0.42 50 156
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
184.08 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
90% total B light 6.81E+14 184.08 ... 0.64 0.36 0.42 50 156
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
52.48 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
50% total B light, major dia. 6.81E+14 52.48 ... 0.64 0.36 0.42 50 156
[J2000]
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
43.15 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 43.15 ... ... ... ... ... ...
8 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
13.11 arcsec ... ... ... ... ... ... ... B disk exp. scale length 6.81E+14 13.11 ... ... ... ... ... ...
9 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
0.65 arcsec ... ... 1.56 (a/b) ... ... ... 155.96
[B1950]
B exponential scale length 6.81E+14 0.65 ... 0.64 0.36 0.42 50 156
[J2000]
10 ESO-LV IIIa-F
1989ESOLV.C...0000L
1.43 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 1.43 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1989ESOLV.C...0000L
Published Object Name         : ESO-LV 1850611                
Frequency Targeted            : ESO-LV "Quick Blue" IIa-O     
Major Axis (2a)               : 117.49     arcsec                   2a = 117.49 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 183.87 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : a/b =     1.56                      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)                    : ...                                 50 deg
Position Angle [Equinox]      : 155.96 deg [B1950]                  156 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          : 300.436218      -54.518349    (B1950)
Qualifiers                    : From new, raw data; Corrected for contaminating sources
NED Comment                   : Elliptical isophote                     

No. 2 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 186.21 arcsec 2a = 186.21 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 291.41 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 3 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 96.61 arcsec 2a = 96.61 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 151.19 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Elliptical isophote
No. 4 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 131.83 arcsec 2a = 131.83 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 206.31 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (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 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 184.08 arcsec 2a = 184.08 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 288.08 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (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 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 52.48 arcsec 2a = 52.48 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 82.13 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (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 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 43.15 arcsec 2a = 43.15 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 8 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 13.11 arcsec 2a = 13.11 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : From fits to surf. brightness in octants
No. 9 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 0.65 arcsec 2a = 0.65 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 1.02 arcsec Uncertainty : ... ... Axis Ratio : a/b = 1.56 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) : ... 50 deg Position Angle [Equinox] : 155.96 deg [B1950] 156 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF
No. 10 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 1850611 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 1.43 arcsec 2a = 1.43 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 : 300.436218 -54.518349 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Derived scale length < 2" mean ESO-B PSF

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