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Possibly one of the last active regions of cycle 24? AR12757 ends january with decent activity for solar minimum. Taken by Marty Wise with his 8" SCT, Aries ERF and PST mod.

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 117 matches

by Rusted
Mon Jan 27, 2020 3:07 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

salvo lauricella wrote:
Mon Jan 27, 2020 10:45 am
Wonderful work! It is a dream!
Thank you Salvo.

Now I must produce some images worthy of the investment in time and materials.

I am at 55N. Which means the sun is very low at 12-15° maximum altitude in winter and there is a lot of atmosphere in the way.
by Rusted
Mon Jan 27, 2020 9:48 am
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

krakatoa1883 wrote:
Sun Jan 26, 2020 2:18 pm
Fine prom image and beautiful observatory indeed! Congrats!
Thank you very much Raf,

If I could ever compare my images to your fabulous results I would be deleriously happy!

I have just been admiring your superb website and your wonderful images.
by Rusted
Sun Jan 26, 2020 1:27 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

marktownley wrote:
Sun Jan 26, 2020 12:28 pm
Lovely thread Rusted! No danger of being banned here for speaking your mind ;)
Thank you Mark, but you really shouldn't encourage me! :mrgreen:
by Rusted
Sun Jan 26, 2020 9:39 am
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Hi Rusted, Well I was also banned from CN because of just saying that I would not recommend a Losmandy G11 mount after having owned two for more then 15 years :lol: :lol: :lol: :lol: :lol: If this is OT please delete it ... but this is real life :lol: :lol: :lol: Rainer Hi Rainer, Tut-tut! :mrgreen...
by Rusted
Sat Jan 25, 2020 7:10 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Hi Rainer, Thanks. I'm actually English but living in exile in rural Denmark. I believe I was close to having the longest thread on CN. Until I was banned for mentioning solar telescope mods. [Twice!] :oops: I think they were glad to see the back of me! I'll try not to outstay my welcome here. ;) I ...
by Rusted
Sat Jan 25, 2020 6:50 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Hi Robert, Good fun, isn't it? As Eric said earlier, ATM is a multi-skilled "Jack of all trades" sort of pastime. Most would probably add: "Master of none!" :mrgreen: Good luck if you think any of my blog worth is reading. I'd just look at the pictures and you'll see what I did. I think aloud, in te...
by Rusted
Sat Jan 25, 2020 10:15 am
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Many thanks again for all your positive comments and to Eric in particular. :D I have been an isolated ATM for nearly 60 years. Always on a shoestring. Buying secondhand accessories by post. Information sources were usually library books. Or magazines to be read only at the library. Far too many man...
by Rusted
Fri Jan 24, 2020 3:48 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

:D Thank you, all, for your kind words. :D The dome is now lined with black, weed suppressing, ladscaping material, spaced off the panels. Matt black paint didn't do well and develops white mould in our cool, damp climate. P1400669 rsz.JPG I have an overhead pulley system to help me lift heavy OTA's...
by Rusted
Fri Jan 24, 2020 9:55 am
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Many thanks to all who responded so positively. I thought it was a poor image even by my own standards. I discovered H-alpha solar only recently thanks to some familiar experts on SGL. Only to find that I couldn't often see the sun from the yard due to local trees and hedges. So I built a two storey...
by Rusted
Wed Jan 22, 2020 6:36 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

Re: 22.01.20202 Prom in very poor seeing.

Thank you Franco.
by Rusted
Wed Jan 22, 2020 3:36 pm
Forum: This is SolarChat !!
Topic: 22.01.20202 Prom in very poor seeing.
Replies: 30
Views: 294

22.01.20202 Prom in very poor seeing.

I hardly dare to share my "daubs" in these illustrious surroundings, but I managed to capture the tall prom today. This was despite a very low altitude sun at 55N [below 15°] fast moving, low cloud and heavy thermal shaking all day. 6" f/8, 90mm internal D-ERF, Baader 35nm, 1.125GPC, motorized PST e...
by Rusted
Sun Jan 19, 2020 8:44 pm
Forum: Solar Scope Modifications
Topic: Baader 1.25x GPC with PST Mod, How to Mount the GPC?
Replies: 12
Views: 254

Re: Baader 1.25x GPC with PST Mod, How to Mount the GPC?

Hi Marty,

You have added the filter precisely where I tried and found the etalon moved backwards by the thickness of the filter housing.
Not sure this matters but I just preferred a more stealthy filter setting which did not push the fittings apart.
by Rusted
Sun Jan 19, 2020 7:00 pm
Forum: Solar Scope Modifications
Topic: Baader 1.25x GPC with PST Mod, How to Mount the GPC?
Replies: 12
Views: 254

Re: Baader 1.25x GPC with PST Mod, How to Mount the GPC?

Marty I discovered only today that you can't screw a normal 2" filter into the front, AOK, etalon adapter. It fits, but not without displacing the etalon away from the objective by the thickness of the filter body. I was going to add a Baader 35nm filter to the AOK nose but had to move it forwards b...
by Rusted
Sat Jan 18, 2020 9:02 pm
Forum: Solar Scope Modifications
Topic: Baader 1.25x GPC with PST Mod, How to Mount the GPC?
Replies: 12
Views: 254

Re: Baader 1.25x GPC with PST Mod, How to Mount the GPC?

Hi Marty Assuming you are using the AOC Swiss adapters you can fit the 1.125 GPC directly in front of the etalon. The problem is having to turn the baffle in the front AOC to fit the GPC nose through it. The baffle hole is slightly too small. I used a lathe but you could file it with a large, coarse...
by Rusted
Sat Jan 18, 2020 7:07 pm
Forum: This is SolarChat !!
Topic: Solar Processing Tutorial (Rapid Workflow) for HA | Jan 16th 2020
Replies: 9
Views: 171

Re: Solar Processing Tutorial (Rapid Workflow) for HA | Jan 16th 2020

Thank you Marty. My hero! :D I went straight on to binge watch your other capture and processing videos. The more I watch the more I realise my ignorance of many of the settings in all the softwares I/we use regularly. Your tutorials will, hopefully, save me/us tremendous amounts of time not having ...
by Rusted
Wed Jan 15, 2020 8:46 am
Forum: Solar Scope Modifications
Topic: Motorized Etalon Tuners
Replies: 13
Views: 528

Re: Motorized Etalon Tuners

Thank you Rainer.

A belated Merry Christmas and Happy New Year to you too.

Sorry I missed your post.
by Rusted
Sat Dec 28, 2019 5:50 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Herschel Wedges
Replies: 11
Views: 284

Re: Herschel Wedges

I have the Lacerta 2" with the odd Brewster angle. It appears to be optically fine and the heat sink remains cool in my 7" f/12. It has a rotatable top stage which allows very easy dimming using a single polariser. It has a built in ND and I added a 1.25" Baader Solar Continuum. The third filter act...
by Rusted
Fri Dec 27, 2019 9:41 am
Forum: Solar Scope Modifications
Topic: A 6" f/8 PST mod? Are we kidding ourselves?
Replies: 30
Views: 1835

Re: A 6" f/8 PST mod? Are we kidding ourselves?

Thank you Marty. I now have a 150/10 objective on order to remove the GPC from the optical train. My lack of skill with image processing means I must make every attempt to optimise my results where I can. [Budget permitting.] I seemed to be getting more dust bunnies with the 1.125 GPC but can't be c...
by Rusted
Tue Dec 24, 2019 3:23 pm
Forum: Solar Scope Modifications
Topic: Skywatcher DC Motor drive for PST etalon.
Replies: 29
Views: 973

Re: Skywatcher DC Motor drive for PST etalon.

A small update: A slightly shorter 240mm timing belt arrived in the post. This meant I could have a lower profile on the etalon drive motor than with the 250mm belt. I had to use the heavier of the two motor support brackets supplied in the focuser motor kit. The bracket is too long and both the sup...
by Rusted
Sun Dec 22, 2019 7:06 am
Forum: Solar Scope Modifications
Topic: Motorized Etalon Tuners
Replies: 13
Views: 528

Re: Motorized Etalon Tuners

Thanks for the excellent images Rainer.

A very clever solution! I had imagined rotation was required.
by Rusted
Sat Dec 21, 2019 6:19 pm
Forum: Solar Scope Modifications
Topic: Motorized Etalon Tuners
Replies: 13
Views: 528

Re: Motorized Etalon Tuners

An incredibly neat solution and you are quite right about using stepper motors. Except for the greater complexity and expense for those not gifted in electronics. I agree about the gentle adjustment being a revelation in tuning. Remote, or otherwise. I'm struggling to see the actual drive interface ...
by Rusted
Wed Dec 18, 2019 6:17 pm
Forum: Solar Scope Modifications
Topic: Skywatcher DC Motor drive for PST etalon.
Replies: 29
Views: 973

Re: Skywatcher DC Motor drive for PST etalon.

The cloud was a real teaser today but I managed a few, short trials with the etalon tuning motor.

P1400455 rsz.JPG
P1400455 rsz.JPG (138.33 KiB) Viewed 133 times
by Rusted
Wed Dec 18, 2019 6:12 pm
Forum: This is SolarChat !!
Topic: my best pictures of 2019
Replies: 20
Views: 364

Re: my best pictures of 2019

Montana wrote:
Wed Dec 18, 2019 2:42 pm
Sorry Rusted, we aren't as rich as Stargazers Lounge :)
Alexandra
:D Thank goodness for smilies! :mrgreen:
by Rusted
Wed Dec 18, 2019 12:57 pm
Forum: This is SolarChat !!
Topic: my best pictures of 2019
Replies: 20
Views: 364

Re: my best pictures of 2019

Stunning images but there is no LIKE button on this forum. Is there?
by Rusted
Wed Dec 18, 2019 7:29 am
Forum: Solar Scope Modifications
Topic: Skywatcher DC Motor drive for PST etalon.
Replies: 29
Views: 973

Re: Skywatcher DC Motor drive for PST etalon.

Good result! Thank you Mark. Sorry it took so long to complete the project after my initial posts. I really thought it would only be a couple of days for the belts to arrive. But I was at the mercy of 18th Century European postal speeds! With regular stops for fresh draw horses for the 2mph narrow ...