Hello. I am Seiichi Yoshida working on the MISAO project. In [vsnet-chat 1381], Brian shows us the rules of code for each star in the USNO-A1.0 catalog. I have two questions on USNO stars and one on GSC stars. | -> <USNO-A1.0 1425.09823278> N=1 First question is: Do we have to write it as it is above? The characters < and > at the beginning and end, and a space after USNO-A1.0, are required? Second question is: | >> USNO 1425.09823278. | -> <USNO-A1.0 1425.09823278> N=1 Which does it means, (a) Although we were calling it "USNO 1425.09823278" until A2.0 was released, we must call it "USNO-A1.0 1425.09823278" after this. (b) We can write "USNO 1425.09823278" or "USNO-A1.0 1425.09823278" to point out the same star (of course, the latter is recommended). Another question is on GSC stars. Is there a rule to distinguish GSC 1.1 stars and GSC 1.2 stars? In my own case, I usually write a 5.40-mag star at R.A.=00 24 47.55 Decl.=+61 49 51.6 as GSC4015.3523 using GSC 1.1 CD-ROMs. How is it written if using GSC 1.2 data? Thanks in advance, -- Seiichi Yoshida Muraoka Lab., Waseda University, Japan seiichi@muraoka.info.waseda.ac.jp http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/index.html