Friday, 7/31, 10pm - 11:30pm local time.
Transparency was less than normal for me .. I could see 3 stars in Ursa Minor, which is the norm, but the moon was bright. The seeing conditions were Good, but not better than Good. Stars were twinkling quite a bit, and my Dob at 171x was not resolving brighter stars sharply.
Still, it was the first clear night in over a week, and I would not be deterred!
I went hunting doubles with my 80mm APO.
-- Beta Scorpii: Also known as Graffias, which is a really cool name to me that means "the claws" in Italian. This was easily split, and looked nice at 102x in my new E.S. 82 Series 4.7mm EP. The brightest is significantly brighter than its companion.
-- Nu Scorpii: This was the "Cool Find" of the night for me. The AL Double Star observing list shows Nu Scorpii as a double with separation 41.4 arc-seconds. Well, that was easy-peasy to split at 102x with my new EP. But then, I noticed something "interesting" about the smaller companion ... was there a 3rd star right on the edge of that one?? At 137x I could just pick it out. At 204x in the APO the image was not good enough to discern any better. So I went to my 8" Dob and looked at 171x just to prove it to myself, and there I clearly saw separation in what I would later learn is "Nu Scorpii CD" in a system of at least 7 members. I would like to learn what the separation is on this one, but have not been able to find it. I am pretty happy that my eye picked up on it at 102x when it wasn't expected.
-- Xi Scorpii & Struve 1999: At first I thought Xi Scorpii was a double-double, but later realized I was seeing both of these doubles in the same FOV. The brightest star was definitely yellow in color, while the others were dimmer and difficult to see the colors. These are easy to separate and looked best to me at 137x.
-- Rho Ophiuchi: This was the "Bonus Find" of the night. Yes, I know it is not in Scorpius, but while I was attempting to find M80 in Scorpius, I changed EP's down to 68x and moved to this close-by star to re-focus. "Oh, WOW!" I exclaimed, "What is THIS star???" 3 stars in a triangle (like a 3-star flying V), and the point star is a double. At 137x this was a great view.
New EP impressions:
This was my first light with the ES 82 Series 4.7mm. This EP perfectly fills a gap, providing 102x. It also allows 204x with the barlow, if seeing is good. The large FOV looks good across, and I really enjoyed using it. It is surprisingly small. I have the same complaint as others, the 13.6mm eye relief doesn't feel like it. In order to see the entire large FOV, my eyelashes touch, and then "look around" the FOV. I found after a while, the "sweet spot" of not quite seeing the entire FOV and still being comfortable. (Note that the 4.7mm EP has the lowest ER of the set.) This is still a keeper for now since it was on sale for $100 less than the 5mm DeLite ... a great EP for that price.
That's about it! Cheers everyone!