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Date and Time of the Query: 2019-02-15 T12:13:44 PST
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Diameter data point(s) for object NGC 7287A

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
... ... ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
25.0 B-mag arcsec^-2^ 6.81E+14 ... ... 0.11 0.89 0.98 84 3
[J2000]
2 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
25.12 arcsec ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
70% total B light 6.81E+14 25.12 ... 0.11 0.89 0.98 84 3
[J2000]
3 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
29.17 arcsec ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
80% total B light 6.81E+14 29.17 ... 0.11 0.89 0.98 84 3
[J2000]
4 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
34.28 arcsec ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
90% total B light 6.81E+14 34.28 ... 0.11 0.89 0.98 84 3
[J2000]
5 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
18.20 arcsec ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
50% total B light, major dia. 6.81E+14 18.20 ... 0.11 0.89 0.98 84 3
[J2000]
6 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
10.72 arcsec ... ... ... ... ... ... ... 50% total B light, aperture 6.81E+14 10.72 ... ... ... ... ... ...
7 ESO-LV "Quick Blue" IIa-O
1989ESOLV.C...0000L
2.81 arcsec ... ... 9.35 (a/b) ... ... ... 3.53
[B1950]
B exponential scale length 6.81E+14 2.81 ... 0.11 0.89 0.98 84 3
[J2000]
8 ESO-LV IIIa-F
1989ESOLV.C...0000L
5.45 arcsec ... ... ... ... ... ... ... R exponential scale length 4.68E+14 5.45 ... ... ... ... ... ...
9 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
0.78 log(2a) + 1 ... ... 0.23
log(a/b)
0.07 ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 36.20 6.30 0.59 0.41 0.48 54 ...
10 RC3 D_0 (blue)
1991RC3.9.C...0000d
0.76 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 34.50 ... ... ... ... ... ...


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1989ESOLV.C...0000L
Published Object Name         : ESO-LV 6020200                
Frequency Targeted            : ESO-LV "Quick Blue" IIa-O     
Major Axis                    : ...                                 ... 
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = -9336.45 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : a/b =     9.35                      b/a = 0.11
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.89
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.98
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 84 deg
Position Angle [Equinox]      :   3.53 deg [B1950]                  3 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          : 336.516663      -22.458334    (B1950)
Qualifiers                    : From new, raw data; Corrected for contaminating sources
NED Comment                   : Elliptical isophote; no diameter given  

No. 2 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 25.12 arcsec 2a = 25.12 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 234.77 arcsec Uncertainty : ... ... Axis Ratio : a/b = 9.35 b/a = 0.11 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 3.53 deg [B1950] 3 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 : 336.516663 -22.458334 (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 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 29.17 arcsec 2a = 29.17 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 272.62 arcsec Uncertainty : ... ... Axis Ratio : a/b = 9.35 b/a = 0.11 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 3.53 deg [B1950] 3 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 : 336.516663 -22.458334 (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 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 34.28 arcsec 2a = 34.28 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 320.37 arcsec Uncertainty : ... ... Axis Ratio : a/b = 9.35 b/a = 0.11 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 3.53 deg [B1950] 3 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 : 336.516663 -22.458334 (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 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 18.20 arcsec 2a = 18.20 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 170.09 arcsec Uncertainty : ... ... Axis Ratio : a/b = 9.35 b/a = 0.11 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 3.53 deg [B1950] 3 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 : 336.516663 -22.458334 (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 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 10.72 arcsec 2a = 10.72 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 : 336.516663 -22.458334 (B1950) Qualifiers : From new, raw data; Corrected for contaminating sources NED Comment : Circular aperture
No. 7 Published Units: Homogenized Units: Reference Code : 1989ESOLV.C...0000L Published Object Name : ESO-LV 6020200 Frequency Targeted : ESO-LV "Quick Blue" IIa-O Major Axis (2a) : 2.81 arcsec 2a = 2.81 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 26.26 arcsec Uncertainty : ... ... Axis Ratio : a/b = 9.35 b/a = 0.11 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.89 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.98 Uncertainty : ... ... Cos-1(b/a) : ... 84 deg Position Angle [Equinox] : 3.53 deg [B1950] 3 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 : 336.516663 -22.458334 (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 6020200 Frequency Targeted : ESO-LV IIIa-F Major Axis (2a) : 5.45 arcsec 2a = 5.45 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 : 336.516663 -22.458334 (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 : 1991RC3.9.C...0000d Published Object Name : ESO 602- G 020 NED01 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 0.78 2a = 36.20 arcsec Uncertainty : 0.07 6.30 arcsec Minor Axis (2b) : ... 2b = 21.32 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.23 b/a = 0.59 Uncertainty : 0.06 0.09 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] : ... ... 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 : 222848.6 -221208. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : ESO 602- G 020 NED01 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 0.76 2a = 34.50 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 : 222848.6 -221208. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.

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