As prep for building MIT/SCSK Curl 2-D path star charts, I have stripped the hygxyz.cvs file to 100K rows for the stars North of -50 Dec. Please excuse my northern hemisphere bias.
I have made these CVS HipparcosYale+ files avail at http://www.aule-browser.com/astro/stars/hygxyz_northofminus50.csv with alternates in three parts as hygxyz_PART_1_northofSouth50.csv and hygxyz_PART_2_northofSouth50.csv etc.
For UTF-8 versions of any of these files, add _ucs before the .cvs extension.
Please let me know if you see issues.
The regex used to drop rows was:
^[0-9]+,[0-9]+,([0-9]+,|,)([0-9]+,|,)([A-Za-z0-9\s^,]+,|,)([A-Za-z0-9\s^,]+,|,)[0-9]+\.[A-Za-z0-9^,]+,-[5-8][0-9][\.].*$
The CVS header is
StarID,HIP,HD,HR,Gliese,BayerFlamsteed,ProperName,RA,Dec,Distance,PMRA,PMDec,RV,Mag,AbsMag,Spectrum,ColorIndex,X,Y,Z,VX,VY,VZ
A listing is given by the HYG author David Nash at https://github.com/astronexus/HYG-Databaseand he has a web page at http://www.astronexus.com/hyg
^[^,]+,([,]|[^,]+,)([,]|[^,]+,)([,]|[^,]+,)([,]|[^,]+,)([,]|[^,]+,)([,]|[^,]+,)[^,]+,-[5-8][0-9].*$
ReplyDeleteproved to be much simpler even if largely non-validating
2-D Rendering in MIT/SCSK Curl web content language:
ReplyDeleteCurl 2-D