Veil & North American Nebula with an ST80
Posted 20 November 2012 - 02:25 PM
Posted 22 November 2012 - 08:10 PM
Was able to pick up the Veil and North American Nebula with my Orion ST80 using a 32mm Plossl (12.5X magnification) and a Thousand Oaks OIII filter at an orange zone site (Malibu). For the Veil, I was able to get both ends and Pickering's Wisp in the same FOV. The OTA is mounted on a Vixen Mini-Porta alt-azimuth mount (only 6.5 lbs).
Good job! The first time I saw the Veil and North America Nebula was also through an ST80 and an OIII filter. I saw all three main sections of the Veil in one FOV. Nice, isn't it?
Posted 29 November 2012 - 10:31 PM
Posted 30 November 2012 - 11:39 AM
Posted 30 November 2012 - 03:55 PM
What maximum field you get with eyepiece of 2" in the ST80/400?
Get to focus with 2 "diagonal + eyepiece of 2"?
Have a picture of the whole?
Posted 30 November 2012 - 07:00 PM
I've never had a problem with eyepieces not coming to focus in my ST80. Remember, though, that I've upgraded the original focuser to a 2" Crayford.
Posted 01 December 2012 - 02:32 PM
However, I agree that an ST80 can be an absolute JOY to use. In fact, for someone like myself for whom binoculars are not an option, an ST80 is a set of binoculars in overdrive! Wonderful wide vistas, very stable even on the flimsy EQ-1 mount, a mount unworthy to use with almost any telescope, but sufficient for the uber-light weight ST80. Very stable and providing breathtaking, sweeping gasps of the heavens. In a pinch, can do wonders even on Jupiter if nothing better is handy. I've since stepped up to 80mm and 102mm ED scopes, significant investments (especially the latter!) that I only justified after being serious about visual amateur astronomy for a decade.
I agree with David that going up to 100mm is very rewarding, but there is also a fairly significant loss of portability. That EQ-1, e.g., demostrates its incapacity with 100mm+ optics (90mm, really, but 100+ for sure). So you've got a beefier mount and heavier tube to deal with. Of course everything is relative, and the 100-class optics are a real joy to use compared to 120mm+ refractors -- excepting the ST120. That one is no more work than a 100mm ED for sure, but it's the only one. All other 120mm+ refractors make the 100mm class look downright portable and an order of magnitude easier to manipulate. I agree with David this is a better place to be, overall, but we must walk before we run, and the ST80 is a wonderful way to get a good visual understanding of the sky, with its easy to find things wide field of view, it's hard to beat, and about as easy as it gets, portable telescope wise. If you don't want to bother or don't have room to pack the 100mm class scope, the ST80 can provide hours of enjoyment and easy celestial education, not to mention just plain ole fun.
Posted 01 December 2012 - 08:02 PM
But, nevertheless, I did have the ST80 mounted on an EQ-1 (CG3) for awhile. Notice the upgraded wooden-legs for stability.
Posted 02 December 2012 - 02:10 AM