International Occultation Timing Association
European Section
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International Occultation Timing Association European Section |
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Occultations by |
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Moon |
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Asteroid |
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Planet |
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Pluto, TNOs |
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Astrometry |
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Sol.Eclipse |
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Contact us :
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In order to test equipment, telescope, positioning etc. A few test stars have been selected. The stars have for certain times the same altitude, azimuth, magnitude and color as the star to be occulted. In the following table the observing time, UCAC number, RA, Dec, spectral type UCAC magnitude, J, H, and K mag are given.
The first 3 stars are easy to find, they are only a little more than 1 degree away from Sirius. For a rough check for these observing time, Sirius may be a good choice, if anybody wants to see, what the horizon is etc.
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m/d hh mm |
UCAC # |
RA |
Dec |
Spec Type |
UCACmag |
Jmag |
Hmag |
Kmag |
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1/30 18h20 |
25023103 |
6 49 39.18 |
-17 30 10.9 |
M6 |
10m60 |
7m346 |
6m378 |
6m085 |
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1/30 18h20 |
24775642 |
6 45 47,49 |
-18 02 39.0 |
M2 |
10m80 |
7m883 |
6m948 |
6m652 |
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1/30 18h20 |
24775522 |
6 45 22.30 |
-18 05 40.3 |
M0 |
10m32 |
7m720 |
6m889 |
6m629 |
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1/30 20h00 |
24572423 |
8 30 38.22 |
-18 34 7.5 |
M0 |
10m23 |
7m656 |
6m861 |
6m580 |
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1/30 20h00 |
24819457 |
8 34 37.87 |
-18 08 51.6 |
M0 |
10m92 |
7m728 |
6m835 |
6m518 |
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1/30 20h00 |
24572586 |
8 31 21.43 |
-18 49 15.9 |
M0 |
10m33 |
7m305 |
6m464 |
6m202 |
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1/30 23h15 |
24839049 |
11 46 15 |
-18 13 18 |
M0 |
10m36 |
8m059 |
7m017 |
7m264 |
The same altitude and azimuth is valid on the 15th of January 1h later and on the 14th of February 1h earlier.
The times are only approximate times for the same altitude and azimuth, calculate it exact for your circumstances.
The data have been extracted from UCAC2 catalog as well as from 2MASS catalog.
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