Re: PST and 40mm Solar telescope
- From: brian@xxxxxxx (Brian Tung)
- Date: Sat, 26 Jan 2008 10:45:11 -0800 (PST)
Dave Jessie wrote:
Hi Brian,
Here's a link to the Solar Max 40 on OPT's website:
http://www.optcorp.com/product.aspx?pid=3381&kw=Coronado&st=2
Hunh! I thought they discontinued that. My mistake.
In any event, I believe the differences are as follows:
1. The etalon in the PST is internal, and smaller (25 mm aperture).
But because the light cone envelope is smaller on the inside of
the scope, this isn't a huge issue.
2. The bandpass, as noted on the page, is < 0.7 A in the SM 40, and
< 1.0 A in the PST. This tends to make disc detail a bit harder
to see in the PST, though prominence detail off the limb is not
severely affected.
In short, the SM 40 performs noticeably better, though not tremendously
so. Still, at the PST's price, it's hard to say no to that kind of
introduction to H-alpha observing.
--
Brian Tung <brian@xxxxxxx>
The Astronomy Corner at http://astro.isi.edu/
Unofficial C5+ Home Page at http://astro.isi.edu/c5plus/
The PleiadAtlas Home Page at http://astro.isi.edu/pleiadatlas/
My Own Personal FAQ (SAA) at http://astro.isi.edu/reference/faq.html
.
- References:
- PST and 40mm Solar telescope
- From: TMA
- Re: PST and 40mm Solar telescope
- From: Brian Tung
- Re: PST and 40mm Solar telescope
- From: Dave Jessie
- PST and 40mm Solar telescope
- Prev by Date: Re: Question about telescope design.
- Next by Date: Re: Question about telescope design.
- Previous by thread: Re: PST and 40mm Solar telescope
- Next by thread: Re: PST and 40mm Solar telescope
- Index(es):
Relevant Pages
|
|
