I don't know what I did right this time but it came out great. This is a stack of about 25 frames from the middle of the pass. I hardly had to tweak the...
See the next message after that one- I forgot to change the group settings to (temporarily) allow attachments. That feature is usually turned off so viruses...
Someone left a red flashlight at PGO Sunday night. It was on one of the benches in front of the warming room, so it was probably lost late when we were...
Can any, or everyone, tell me the benefits and drawbacks of full aperture and off axis solar filters. Particularly related to a 12" scope. Visual observing...
... The sun is bright enough that you don't necessarily need the full 12" aperture. You are basically cutting down on the light permitted into the optics with...
... That would be true without a filter (if you were viewing via solar projection. Of course dark eyepiece filters sold as solar filters are very dangerous...
I have a glass solar filter cap for my 8" and it works great. Paid about $100 for it. I believe glass is preferred over film. Mine is full aperture, but I...
Reminder from the Calendar of pg-astro http://groups.yahoo.com/group/pg-astro/cal Wabash Valley Astronomical Society Meeting Saturday July 9, 2005 7:00 pm -...
pg-astro@yahoogroups....
Jul 7, 2005 11:56 pm
237
Reminder from the Calendar of pg-astro http://groups.yahoo.com/group/pg-astro/cal Indiana Astronomical Society General Meeting Saturday July 9, 2005 7:00 pm -...
pg-astro@yahoogroups....
Jul 7, 2005 11:56 pm
238
This month's meeting of the Wabash Valley Astronomical Society will be held at Camp Cullom (rather than in W. Laf.) at 7, before the PGO open house at 9. The...
Reminder from the Calendar of pg-astro http://groups.yahoo.com/group/pg-astro/cal PGO Open House Saturday July 9, 2005 9:00 pm - 12:00 am (This event does not...
pg-astro@yahoogroups....
Jul 8, 2005 1:57 am
240
Film seems to work just fine. In a test in S&T a couple years ago, the Baader film tested better than any of the glass fiters. An older favorite was "Solar...
When looking through a white light filter, whether film or reasonable quality glass, you're really not going to be able to see much in the way of fine detail,...
You can see fine detail, but there's not much to look at other than sunspots. You'll see fine detail in the spots (detailed shape of the boundary of the...
While I have been able to see lighter boundaries around the darker sun spots and some slight color variation on the face of the sun, I have not been able to...
Hard to say. The best white light solar viewing I've seen was with a 60mm dept store refractor I had mumble years ago, where the graininess was usually seen....
John, Very interesting. Several years ago I had a much smaller off-brand reflector. Although it was a true nightmare to use, I've found that under certain...
Glass isn't the problem - you look through glass all the time when you use multi-element eyepieces. The real limiting factor is atmospheric steadiness (and...
Baader film can be susceptible to pinpricks and tears if handled roughly, but I've found those are easily fixed by lightly gluing a new patch of film over the...
Aull
r.aull@...
Jul 8, 2005 6:01 pm
248
For pinholes in the coatings, a dot of black magic marker will work. -John...
Highway 38 is currently closed between Dayton and Mulberry. For those coming from the Lafayette area, I've added a detour to the map on our website ...
No, sear dumb luck. I've been using a 1000 Oaks glass filter for years. I've seen the spots (before my eyes... ;>) and there is a lot of detail to them even...
At Saturday's PGO open house, the camp ranger recommended a different detour around the SR-38 closure between Dayton and Mulberry: From SR-38, on the southeast...
I am considering a refractor to start dipping my toe into imaging. Nothing serious, just playing and having fun. At the same time I don't want to buy a piece...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
