How High the Moon? Stupid High!
Posted 22 October 2012 - 08:20 PM
Watching sunrise over Alphonsus is a favorite for me. As the shadows of the terracing developed and the floor slowly revealed, I suddenly got a bit giddy.
Being a perfectly lovely night out - very good to excellent seeing (a solid 200x night) and astoundingly comfortable needing only a light jacket - I dug out an old Orion Epic ED 3.7mm. I don't remember why I bought it or what its original purpose was, but I'd put it away several years ago and nearly forgotten it.
At any rate, in it goes for 270x on the C-102, a bit more than the manufacturer recommends. I now remember why I'd put it aside: Black out and kidney-beaning. But nevertheless the image holds together when I can stay still enough and there's surprisingly next to no CA.
OK, so let's have fun. In goes a 2x Barlow for about 540x (crazy high). The old girl is holding her own.
Alright, let's get stupid! In goes an Orion Tri-Mag 3x Barlow for a whopping 800+!! It took a bit of twiddling to get a focus and my own pulse caused tremors, but it was working. That's an absurd 200x per inch. Not the best I'd ever done, but very respectable for a 4" achromat.
Now,to all newcomers reading along, I don't recommend anyone run out and dump a lot of money to get these magnifications. This is just something Lunartics do on good nights when they already own a bucket full of eyepieces.
But what a great night to get stupid! Anybody else been stupid high lately?
Posted 22 October 2012 - 09:16 PM
Again my apologies for magnification conservatism.
Posted 22 October 2012 - 10:49 PM
My stupid highs come from viewing at the highest magnifications possible, when weather cooperates to bring such plans to fruition.
Opportunities to enjoy the heavens have been scarce this year, and Sunday night's sky was pretty steady in our Northeast corner of the nation. When I then maxed out at 231x with my 6" rack and pinion Dob, spending a great deal of time with such features as Crater Maurolycus and Rima Ariadaeus, I had no desire to break the spell and go for magnifications that were not going to be achieved.
Posted 23 October 2012 - 08:03 AM
Posted 03 November 2012 - 09:18 PM
Posted 04 November 2012 - 12:18 AM
Same with the moon, gone up to 100x per inch just to look. Not bad, really. A bit dim and less sharp, but doable. Features were still well within the realm of being discernible.
Try stupid power on Ganymede, you might be surprised to see albedo features. I have at upwards of 70 to 80x per inch during great seeing. No distinct craters, unfortunately, just brighter and darker regions.
Oh, sketched it!
Posted 04 November 2012 - 09:07 AM
Posted 04 November 2012 - 04:26 PM
Posted 04 November 2012 - 10:00 PM