Testing the instruments:

At the moment, the stars to be occulted are difficult to observe for testing purposes.

Therefore:
For testing your camera system as well as the filter for the observations, stars have been selected, which are very close in magnitude and color to the stars to be occulted.

In order to find the star very easy, stars near Vega have been selected. The stars are according to the SIMBAD database:

For testing the first star event:

Basic data : HIP 92114 -- Star

ICRS 2000.0 coordinates
18 46 24.1853 +38 19 17.822 [8.77 8.12 103] A 1997A&A...323L..49P
FK5 2000.0/2000.0 coordinates
18 46 24.19 +38 19 17.8 [8.77 8.12 103]
FK4 1950.0/1950.0 coordinates
18 44 42.11 +38 16 00.0 [51.02 46.78 106]
Galactic coordinates
67.68 +17.34
Proper motion (mas/yr) [error ellipse]
1.16 -2.11 [ 1.00 .92 109] A 1997A&A...323L..49P
B magn, V magn, Peculiarities 9.62, 8.64
Spectral type   K0
Parallaxes (mas)
2.26 [.92] A 1997A&A...323L..49P


For testing the second star event:

Basic data : GSC 03118-01150  1

ICRS 2000.0 coordinates
18 46 08.265 +38 15 04.10 [117.27 39.79 0] B 1998A&A...335L..65H
FK5 2000.0/2000.0 coordinates
18 46 08.27 +38 15 04.1 [117.27 39.79 0]
FK4 1950.0/1950.0 coordinates
18 44 26.08 +38 11 47.9 [407.36 108.52 179]
Galactic coordinates
67.59 +17.37
Proper motion (mas/yr) [error ellipse]
.00 -11.10 [ 7.80 1.60 0] B 1998A&A...335L..65H
B magn, V magn, Peculiarities 11.7, 10.4

And very close to the first star is a G5 star with approximate the brightness of Titan such as:

Basic data : HD 173950 = HIP 92122 -- Double or multiple star

ICRS 2000.0 coordinates
18 46 34.6296 +38 21 03.348 [11.85 10.98 156] A 1997A&A...323L..49P
FK5 2000.0/2000.0 coordinates
18 46 34.63 +38 21 03.3 [11.85 10.98 156]
FK4 1950.0/1950.0 coordinates
18 44 52.54 +38 17 48.6 [69.02 62.47 147]
Galactic coordinates
67.72 +17.32
Proper motion (mas/yr) [error ellipse]
17.16 -77.75 [ 1.36 1.23 148] A 1997A&A...323L..49P
B magn, V magn, Peculiarities 8.91, 8.09
Spectral type  G5
Radial velocity (v:Km/s) or Redshift (z)
v +6.71 [ .19] D 2002A&A...382..118T
Parallaxes (mas)
27.01 [.93] A 1997A&A...323L..49P


A chart with the stars and with Vega can be seen here.

For observers in the far South (South Africa, Namibia) you have to observe that star early in the evening!

Test your cameras with these stars! Test your filters. More infos for the filters will soon be available on this Website.


Last changed on 12th of September 2003


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