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Capture.PNG (46,643 bytes) |
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There is no standard for the constellation figure. Almost every book or author use it's own variant. Only the constellation boundaries are standardized by IAU and Skychart use them. In Skychart you can already switch between three variants, the default one I not remember the exact origin, the one from Rey book and the one from Tirion atlas. Use the menu Setup/Display/Lines to select the file you want: https://www.ap-i.net/skychart/en/documentation/display#lines The Tirion variant is probably the nearest to what you want because the wikipedia image is from Sky&Telescope, the editor of Tirion. But I not set the Tirion variant as the default in Skychart because I only have the points defined with J2000 coordinates, this make the lines to not follow the stars proper motion for other epoch. The preferred file format use HD star number to define the lines, this way the proper motion is computed with the Hipparcos catalog data. See the files DefaultConstL.cln and ReyConstL.cln in Ciel\data\constellation folder. So you can make such a file to reproduce the wikipedia figures (original source here: https://www.iau.org/public/themes/constellations/ ) Process as follow: - display the gif image of the constellation as reference. - in Skychart click on each star pair that define a line. - in the detail information window take note of the HR number - record the number in a file using the same format as in DefaultConstL.cln For example the line from alpha to gamma ceti: CET 911 804 |
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Thank you, as usual, you are a step ahead of me. Great program. |
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Thanks to a contribution in the forum the IAU constellation lines will be available in the next beta version. https://github.com/pchev/skychart/commit/af5f57af34b7ed35e4037c4468d7b11e77875311 |
- Anonymous
