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Re: Solar Scope
Tristan Young
¿ªÔÆÌåÓýYes, you can do that.? But the etalon and blocking filters are the most expensive part of the setup, and there's not much money to save from buying the parts.? Retrofitting to an existing refractor is not necessarily the best way to go.? Lunt no longer offers adapters for various lens cells, so you'd have to commission a machinist to make one for you, unless you're lucky enough to have a compatible lens cell.? You also need to correctly size the blocking filter for the particular scope and for the intended purpose (eg larger blocking filter is required when doing photography).I recommend buying a full Ha scope. - Tristan - On 9/18/2022 9:55 AM,
gregz12@... wrote:
I watched the video on the Lunt solar scope.? What's confusing is it can be converted to a regular refractor by removing the etalon?and changing the diagonal.? Is it possible to add an Ha diagonal and etalon to a regular refractor? |
Fw: [RASC Ottawa Council] Re: Frank Bayerl obit
One of our OAFs passed away recently Jim ----- Forwarded Message ----- From: Michael Wilson <mickwilson20@...> To: Chris Teron <chris@...>; Art Fraser <a-fraser@...>; Membership Department <mempub@...> Cc: RASC Council <rascottawacouncil@...> Sent: Saturday, September 17, 2022 at 06:37:09 p.m. EDT Subject: [RASC Ottawa Council] Re: Frank Bayerl obit Thanks, Chris. Will you or anyone else wish to do a remembrance for Frank?
Cheers.
Get
From: rascottawacouncil@... <rascottawacouncil@...> on behalf of Chris Teron <chris@...>
Sent: Saturday, September 17, 2022 6:18:28 PM To: Art Fraser <a-fraser@...>; Membership Department <mempub@...> Cc: RASC Council <rascottawacouncil@...> Subject: [RASC Ottawa Council] Frank Bayerl obit ?
Hi
I noticed in the Ottawa Citizen that one of our long-time members passed away a few days ago - Frank Bayerl. ?The database shows that he has been a member since 1998. ?I worked with him in the early days of SmartScope and he regularly attended
our monthly meetings at CASM.
Chris
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Re: Solar Scope
Tristan Young
¿ªÔÆÌåÓýDefinitely go with Lunt.I used to sell both, and a problem that can happen to either is a degraded filter in the blocking filter assembly (oxidation of one of the metal films).? Meade doesn't sell or send out replacement filters, requiring a trip back to California and unknown wait time for replacement.? The last time I sent in a blocking filter to Meade, we didn't receive a replacement for about 2 years, and failed to receive one at all before the shop close down.? Lunt will ship you the filter glass, and it's dead-easy to replace. Point for Lunt. On September 17, 2022 8:35:17 p.m. EDT, R WAGNER <rick.wagner@...> wrote:
-- Music is the art of thinking with sounds |
Re: Solar Scope
¿ªÔÆÌåÓýI'm seriously considering the Lunt 50mm.? Andrea Girones showed a
few images taken with the 40mm that absolutely blew my socks off.?
I wanted to go with the 50mm since it has the pressure tuning
which I think is better than the tilt tuning.? I was told by someone whose opinion I respect that you can get a
really good Coronado - if you're lucky, but that you will always
get a really good Lunt.? The Quark has the problem that you have
to buy both the prominence version and the disk version if you
want to observe both and there have been quality complaints. Rick On 2022-09-17 22:07, James Sofia wrote:
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Re: Solar Scope
Hi folks: I have a Lunt 60mm h alpha solar scope and I am very pleased with it.? I got it with a double stack (add on) which really brings out the detail on the sun's surface.? The prominences are also amazing.? I have created a shield that blocks extraneous light getting into your eyes as you view the solar image.? All this stuff is expensive.? I now supplement visual solar observing with capturing the solar diskc and flares using a camera connected to a laptop. I can save some of images if I want.? Cheers, Jim
On Saturday, September 17, 2022 at 05:41:40 p.m. EDT, ALbert <alboodie@...> wrote:
Well that's pretty depressing. At least I saved myself from disappointment thanks to the group's expert responses.? On Sat, Sep 17, 2022, 5:12 PM Richard Harding <r.elleray.harding@...> wrote: I had a Lunt 50, and it was underwhelming! Sold it¡ |
Re: Solar Scope
Well that's pretty depressing. At least I saved myself from disappointment thanks to the group's expert responses.? On Sat, Sep 17, 2022, 5:12 PM Richard Harding <r.elleray.harding@...> wrote: I had a Lunt 50, and it was underwhelming! Sold it¡ |
Re: Solar Scope
I had a Lunt 50, and it was underwhelming! Sold it¡
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Richard ? On Sep 17, 2022, at 4:24 PM, Attilla Danko <danko@...> wrote: |
Re: Solar Scope
There is no such thing as budget h-apha.
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The two cheapest: the PST and the Quark both has terrible reputations for poor quality control. If you buy one, be prepared to send it back -- a few times -- untill you get a decent one. attilla danko, , danko@..., attilladanko@... On Sat, Sep 17, 2022 at 3:45 PM ALbert <alboodie@...> wrote:
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Re: Solar Scope
Dude.....I said budget friendly.?? The 40mm looks decent no? On Sat, Sep 17, 2022 at 3:22 PM Mike Wirths <mikewirths1@...> wrote:
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Re: Solar Scope
This one I think!! On Sat, Sep 17, 2022 at 10:10 AM ALbert <alboodie@...> wrote:
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Re: Nirvana site visit
Thanks for the report Attilla. We saw that sign too, I expect that its about cleaning up all the felled trees from the direcho storm that we had in the spring. The road itself looked freshly graveled so I don't see what else it needed...? Did you also check out the area behind the Front obs platform which belongs to the airstrip at Tomvale? On Tue, Sep 13, 2022 at 10:13 PM Matt Weeks <northern.stargazer@...> wrote: Let¡¯s hope we get decent weather. I¡¯d love to observe out there again.? |
Re: Nirvana site visit
Great review Attilla!
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Richard ? On Sep 13, 2022, at 5:35 PM, Attilla Danko <danko@...> wrote: |
Nirvana site visit
Visted Nirvana Sept 12 during the day. The most important observation
is the sign at the front entrance. Fuzzy picture attached warning us of road-delaying construction. It's unclear if the construction they're warning us about will block the road. But the date range they're warning us about covers the dark-of-the-moon for September. I'm guessing the real reason for the sign is that the construction guys will be pissed at anyone else use the road while they are tearing it up. In tiny letters at the bottom of the sign was "Ron Nowell Construction inc" 613 484 5134 which may be of interest for those who want to ask them for details. I later looked up their website: <> Also for those who havent been to Nirvana before: The right turn off the entry road, that rises steeply up to the runway is completely impassible. Which is probably there is a new and completely passible road forked off the impassible one about 30 degrees counter clockwise. It doesnt look it, but it also leads to the runway. It has a washout along the south edge but that didn't cause a problem for a comfy passenger car. NMR says we should not setup on the runway. Most of the non-runway areas are covered in 4 foot tall vegetation. However, we saw two patches were one might setup scopes withut having to mow. One along the last bit of road that leads to the runway where the gass was sparse and only a foot tall. Another is rectangular patch a few hundred meters south of the access road along the west side of the runway where someone has planted low vegetation (only a couple of inches high) and added a fire-place ring. The second looked like a comfortable place to setup telescopes -- assuming who ever gardened that place doesnt feel violently territorial about it. Also about not setting up on the runway: at the north end of the runway perhaps a 50 meter west, there is remains of a taxiway. It's parallel to the runway and separated from it by grass. I expect NMR cannot complain if people part RVs there. It's paved with asphalt, so i'd still prefer not to setup on it because of the bad ground-seeing it will produce as it releases it's daytime heat at night. Oh, and there were still a few mosquitos. Finally, for those who want to know where Nirvana is, The "road map" link on the Nirvana clear sky chart is accurate: <>, but turn on satellite view. -ad |
Re: nice detail on jupiter now
In the north equatorial band there is a white oval with a blue festoon inside.
On Fri, Sep 9, 2022, 23:23 Attilla Danko <attilladanko@...> wrote:
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Re: August 27th, observing at FLO
Not that I am entitled to visit FLO, but there is a detail about laptop users that is missing from the proposal.? Not everyone with a computer is doing astrophotography. Some people use laptops and pads for guidance from live star charts and for logging observations. (E.g., I have used SkyTools for nearly 20 years now for my star maps and logging. I'm building a push-to system for my LightBridge reflector that accepts targets from SkyTools and shows where the scope is pointed on the sky.)
The rules might need to be clear that anyone with a laptop must segregate from those who are preserving their peak night vision.? |
Re: August 27th, observing at FLO
On Thu, Sep 1, 2022 at 05:42 PM, Stephen J McIntyre wrote:
I think that might be something worth seriously considering.? Maybe the idea could be put out there as a general etiquette suggestion in the FLO guidelines.? However, I've only had one night there, which is a meager sample size.? Maybe its really only an issue on busy nights.? I'm heading out there tonight to see if I can work a few more kinks out of my "system"..ha.? We will see how it goes. Matt |