From jop at astro.columbia.edu Mon Jun 19 09:56:27 2023 From: jop at astro.columbia.edu (Joe Patterson) Date: Mon, 19 Jun 2023 09:56:27 -0400 Subject: (cba:news) V1674 Her, prime season Message-ID: <64b7697f-e2d5-df18-2679-45651fba5566@astro.columbia.edu> Hi CBAers, With the dark of the Moon, it's an excellent time to get LONG runs on V1674 Her. At mag 17.7, it would normally be a challenge for us. And the 8-minute spin signal is quite strong, appearing even in short or mediocre runs. But the 3.6 hour orbital signal is weak, requiring long runs in fair-to-good conditions. Most of all, the orbital signal requires long runs, since it's weak and has no sharp features (like a true WD eclipse) Now, with the star transiting near midnight, is an excellent time to get such runs, assuming weather cooperates. We're also re-awakening "Nova Sco 1437", which we dropped a few years ago after another bauble (I think "Maxi") caught our eye. I'm not sure what the variable-star name is. Can someone supply it? I had hoped to attend this week's SAS convention in California. My health has been subpar (not in the golfing sense), so a long trip seems ill-advised. Write! joe ____________________________________________________________ Center for Backyard Astrophysics (CBA) mailing lists https://cbastro.org/communications/mailing-lists/