Affiliation
American Association of Variable Star Observers (AAVSO)
Fri, 05/31/2013 - 18:22
I've always used M67 or NGC 7790 as a standard field for determining color transforms. It seems we are currently in no-mans land for these two. Is there another field(s) that anyone could recommend for imaging these short days of summer (with VPHOT sequence available)?
Jim Roe [ROE]
Hi Jim,
The other cluster that I was calibrating was M11, where I had 6 UBVRI calibrated nights before I left Flagstaff. That data is probably in Seqplot. In addition, the field of SA110-503 and its neighbors is extremely well calibrated and is a good choice instead of a cluster. I have ~22 nights of data for it, also in Seqplot.
Arne