Updated Hipparcos catalogue

General physics and astronomy discussions not directly related to Celestia
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ajtribick
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Updated Hipparcos catalogue

Post #1by ajtribick » 27.09.2007, 23:00

The Hipparcos data has been rereduced to produce a more accurate catalogue.

Printed version released today, online data to come in early 2008

Topic author
ajtribick
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Re: Updated Hipparcos catalogue

Post #2by ajtribick » 12.07.2008, 15:38


symaski62
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Re: Updated Hipparcos catalogue

Post #3by symaski62 » 12.07.2008, 16:51

:D yes !

The file is too big, maximum allowed size is 256 KiB. <= 8O LOL

HIP2.DAT
http://images.imagehotel.net/?9o0y743l10.jpg
windows 10 directX 12 version
celestia 1.7.0 64 bits
with a general handicap of 80% and it makes much d' efforts for the community and s' expimer, thank you d' to be understanding.

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ajtribick
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Re: Updated Hipparcos catalogue

Post #4by ajtribick » 12.07.2008, 16:56

Don't know what you mean about it being too big... it opens fine in Notepad++ on my computer.

As for implementing this in Celestia, I am working on it.

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Re: Updated Hipparcos catalogue

Post #5by ajtribick » 15.07.2008, 20:27

I decided to take a look at the host star of the habitable zone gas giant, HD 28185b.

Using the apparent magnitude of 7.81 from SIMBAD...

Old parallax = 25.28 ± 1.08 mas which translates to a luminosity of 1.01 ± 0.09 times solar
New parallax = 21.97 ± 0.87 mas which translates to a luminosity of 1.33 ± 0.11 times solar

From inner and outer habitable zone boundaries in our solar system of 0.95 and 1.15 AU respectively (from here), the habitable zone boundaries become:

Old luminosity: 0.95 ± 0.09 AU to 1.16 ± 0.10 AU
New luminosity: 1.10 ± 0.09 AU to 1.33 ± 0.11 AU

The planet orbits at 1.031 ± 0.060 AU according to the Catalog of Nearby Exoplanets...

It looks like it might be a bit humid on any "Earthlike" moons...


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