Good point, Will. Who is running the TAMU group right now? I don't recall if there was a name for contact or not. I thought it was someone on the faculty of...
5338
wsager02
Apr 26, 2012 3:47 pm
Karl, I don't know whom to contact in astronomy. You have gotten some speakers there, so ask one of those profs whom you should talk with. It would be a good...
5339
Don E. Bray
debclltx
Apr 26, 2012 3:50 pm
On the filters, the one used for solar viewing is Hobart Weldit Part number 770406. It is for a welding helmet, but fits in the goggles that I described. I...
5340
Karl Aufderheide
kauf482001
Apr 26, 2012 5:34 pm
Critical feature, Don. Keep most of the light out of the scope in the first place, and you have less to worry about with inside additional filters. On the...
5341
Don E. Bray
debclltx
Apr 26, 2012 8:19 pm
Karl, This is just for eyeball viewing, I have a tight fitting solar filter for the scope. Don ... *************************************** Images of Venus &...
5342
Karl Aufderheide
kauf482001
Apr 26, 2012 8:30 pm
Karl, This is just for eyeball viewing, I have a tight fitting solar filter for the scope. Don Ah. That wasn't clear earlier. I feared that you were trying to...
5343
Kelsey Golden
oldmanklc
Apr 26, 2012 9:29 pm
Are there really "eyepiece solar filters" that are marketed as stand-alone solar filters? I understand having an objective filter in combination with an...
5344
Karl Aufderheide
kauf482001
Apr 26, 2012 10:05 pm
These eyepiece filters are never mentioned with anything other than disdain, and they're reported as coming with the accessories of a cheap scope of...
5345
Don E. Bray
debclltx
Apr 26, 2012 10:56 pm
Just to be sure that we have covered the safe ways for solar viewing, the welding goggles that I use are at ...
5346
Kevmedic
kevmedic513
Apr 27, 2012 2:53 am
Had one with my old Jason refractor when I was a kid. Didn't know any better, just got lucky I guess Sent from my iPad ... Had one with my old Jason refractor...
5347
Judy Culver
judy.culver
Apr 27, 2012 2:20 pm
Are any of you planning on helping with Bioblitz tonight? Judy Sent from my iPad...
5348
Mark Spearman
brazosastro
Apr 27, 2012 3:00 pm
I had an eyepiece filter on my 4.5 in Tasco reflector. It has a “doughnut” to block some light but I could see where the sun had almost come to focus on...
5349
Karl Aufderheide
kauf482001
Apr 28, 2012 6:43 am
I had an eyepiece filter on my 4.5 in Tasco reflector. It has a “doughnut” to block some light but I could see where the sun had almost come to focus on...
5350
anjal_sharma@...
anjal_sharma
Apr 28, 2012 6:48 am
The only safe way to view the sun in white light WITHOUT having an objective filter is to use a high quality Herschel wedge. BUT it can only be used on...
5351
Karl Aufderheide
kauf482001
Apr 28, 2012 7:30 pm
Exactly, Anjal. Here’s a nice, brief Wikipedia article on the Herschel Wedge: http://en.wikipedia.org/wiki/Herschel_wedge ...
5352
Clayton Jeter
scopebloke48
May 2, 2012 12:48 pm
Looking for a 20" (or larger) glass blank. Any material. Thanks... -- Clayton L. Jeter cell: 713-569-7529...
5353
Karl Aufderheide
kauf482001
May 4, 2012 5:29 pm
Pertinent to our recent discussion thread about solar filters, here's an informative video from Astronomy magazine. ...
5354
Don E. Bray
debclltx
May 4, 2012 6:57 pm
Karl, Very good, thanks for sending it. I had not thought about UV, but found the following on the Hobart welding products page about their filters LCD lens...
5355
Karl Aufderheide
kauf482001
May 4, 2012 7:04 pm
Don- I'm no expert on filters, but the general advice on that video was pertinent: make sure that the filter is in front of the objective lens of the...
5356
kevmedic513
May 5, 2012 1:28 am
Well there's still 24 hrs to go and the moon is incredible tonight. That figures too, all my telescope stuff is still at the old house so I can't go out...
5357
Derek
dpkuhl
May 5, 2012 8:42 pm
To build enthusiasm for tonight's supermoon I have posted a quickie moon shot to photos section. It sure was pretty night before last. Derek...
5358
Derek
dpkuhl
May 5, 2012 8:49 pm
To build enthusiasm for the Venus transit, I have posted some early attempts of white light photos of the sun. They are unprocessed or stacked. They are...
5359
Judy Culver
judy.culver
May 5, 2012 10:53 pm
Beautiful moon image, Derek, and I think the sun looks good in green. What scope did you use? Judy Sent from my iPad ... Beautiful moon image, Derek, and I...
5360
Judy Culver
judy.culver
May 5, 2012 11:06 pm
While you are out admiring the full moon tonight don't forget to look for Hubble. At 9:13 it will be traveling from W to ESE at a max alt of 58 degrees. At...
5361
Derek Kuhl
dpkuhl
May 5, 2012 11:09 pm
Thank you Judy. You think the sun should be made of cheese or something... ;-) I won't be so lazy and I will make it a normal color next time. I used a Sky 90...
5362
Derek Kuhl
dpkuhl
May 5, 2012 11:12 pm
That should be a really pretty pass Judy! Derek Kuhl The Retina Center Bryan, TX ... That should be a really pretty pass Judy! Derek Kuhl The Retina Center...
5363
wsager02
May 9, 2012 5:50 pm
News of a giant sunspot group. Will http://lightyears.blogs.cnn.com/2012/05/09/monster-sunspot-spitting-out-flares/?hpt=hp_t2...
5364
Judy Culver
judy.culver
May 9, 2012 6:53 pm
Thanks, Will. I've been looking between the clouds. There are some great proms! Judy ... Thanks, Will. I've been looking between the clouds. There are...
5365
Kevmedic
kevmedic513
May 10, 2012 4:15 am
What do you guys think about maybe getting some of these to give to some schools or even hand out at an outreach event? Maybe we could even find a sponsor(s)...
5366
Don E. Bray
debclltx
May 10, 2012 1:57 pm
Kevin, As long as they are looking direct, they will be fine, in my opinion. But, what is the possibility that they would bend their head down and then move...
