Henry, Thanks for formatting things. It makes it so much easier to understand, test, and use! I've made a few changes. Read the comments to see. Most extensive were in oc_getstar_ucac2, where I checked and corrected the math to get from the UCAC2 fields to our standard star fields. I don't have sizey. I have sizex and guessed to get edit this to make a sizey so this would to run. Send me sizey or put it into hdoccul/idl/idlutils. Any chance you could do the commenting for TYC2 and HD? And for 2mass, that takes mailing them a hard drive, right? - Leslie