Search found 93 matches

by EdAstle
Sun Jul 21, 2024 1:56 pm
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Sun FD in Halpha with SHG, 2024-07-20
Replies: 4
Views: 166

Re: Sun FD in Halpha with SHG, 2024-07-20

Thank you Douglas - you've confirmed what I supposed, but wasn't sure of my supposition.

That mosaic is brilliant! Added to my favourites for reference.
I'll be studying that later.

Regards, Ed.
by EdAstle
Sun Jul 21, 2024 3:11 am
Forum: This is SolarChat !!
Topic: 2024 07 19 - M Class Flare at 18:05 UTC
Replies: 7
Views: 297

Re: 2024 07 19 - M Class Flare at 18:05 UTC

UV? What's that? Everyone in UK is pasty white, unless they've been abroad or stumbled into cow poo :-)
by EdAstle
Sun Jul 21, 2024 1:47 am
Forum: This is SolarChat !!
Topic: RGB WL - harder than I'd supposed
Replies: 10
Views: 324

Re: RGB WL - harder than I'd supposed

Hi Rainer, The main impetus was seeing amber colour around sunspots (visually) through my C9.25 with Baader OD5 film. I want to capture that pleasing "real eye view" view in an image I suppose. It's a purely personal quest, not science. My R filter gives about 50% compared to the GB in the...
by EdAstle
Sat Jul 20, 2024 8:29 pm
Forum: This is SolarChat !!
Topic: RGB WL - harder than I'd supposed
Replies: 10
Views: 324

Re: RGB WL - harder than I'd supposed

Hi Ed, I must apologize for my simple answer which does not help at all. It did help - I wasn't aware parfocal sets of RGB were available because I've never shopped for "RGB" until recently. A whim of a purchase on eBay. Visual focusing is hard in recent rowdy UK seeing. I've built my own...
by EdAstle
Sat Jul 20, 2024 8:18 pm
Forum: This is SolarChat !!
Topic: RGB WL - harder than I'd supposed
Replies: 10
Views: 324

Re: RGB WL - harder than I'd supposed

Fabulous image :bow :hamster: why not stick to black and white :) Alexandra Thank you Alexandra. Why? Because I like a challenge that's above my technical expertise I suppose :) What's that phrase - "I'd rather fail and fall flat on my face than have a nice face", or something :D Cheers, ...
by EdAstle
Sat Jul 20, 2024 8:07 pm
Forum: This is SolarChat !!
Topic: 1 hour 54 minutes timelapse of AR13738 in G-Band (430nm) 12th of July 2024
Replies: 10
Views: 446

Re: 1 hour 54 minutes timelapse of AR13738 in G-Band (430nm) 12th of July 2024

Amazing details and many thanks for the equipment/processing details - it's good to share both. I have the Altair G-Band + Baader "photographic" wedge so I'll be playing copycat if the shy Sun ever reappears from behind the clouds. Not for timelapse though - just to bag a single decent gra...
by EdAstle
Sat Jul 20, 2024 12:33 pm
Forum: This is SolarChat !!
Topic: 2024 07 19 - M Class Flare at 18:05 UTC
Replies: 7
Views: 297

Re: 2024 07 19 - M Class Flare at 18:05 UTC

Good grab! I've made reflective "hats and scarves" from an £8 car windscreen sun reflector + velcro strips. A hat for the black strainwave box. A cape to wrap around the black pier extension and black tripod legs parts. Scarves for anything else to use up my £8 investment. I need to make a...
by EdAstle
Sat Jul 20, 2024 12:05 pm
Forum: This is SolarChat !!
Topic: RGB WL - harder than I'd supposed
Replies: 10
Views: 324

Re: RGB WL - harder than I'd supposed

Hi, Well done. Parfocal filters in this case and for DSO imaging is a good help. Thanks for the advice - would parfocal filters help on an achromat? Well, every little helps I suppose. I bought a set of used "True Technology Ltd" RGB from eBay just to dip my toe in the water. Realized aft...
by EdAstle
Sat Jul 20, 2024 11:46 am
Forum: Solar Radio, Magnetometry and Spectroscopy
Topic: Sun FD in Halpha with SHG, 2024-07-20
Replies: 4
Views: 166

Re: Sun FD in Halpha with SHG, 2024-07-20

Very nice! I can't get FD out of my gear so love to see the high quality produced by others. Would an SHG @ Ha be "defacto standard" which those with tunable etalons should strive to achieve, to be "on band"? I realize live-view for etalon users wont match SHG final images. After...
by EdAstle
Sat Jul 20, 2024 1:34 am
Forum: This is SolarChat !!
Topic: RGB WL - harder than I'd supposed
Replies: 10
Views: 324

RGB WL - harder than I'd supposed

Schorchio 28C in south UK today. Blue sky. Thought I'd try R/G/B imaging through a Baader Herschel into a mono cam. I thought it'd be easy. Nope. Had to add a 2x PowerMate because the filter wheel chewed up the last of my focus rack. Had to refocus my achromat for each RGB filter. Nearly 6 hours in ...
by EdAstle
Sat Jul 20, 2024 12:56 am
Forum: This is SolarChat !!
Topic: reminders
Replies: 9
Views: 523

Re: reminders

I see the brief "checking you're a human" thing from cloudflare.
Lasts about 2 seconds. No big deal Stephen!
I'm relieved to have confirmation.
I'm in UK btw.
by EdAstle
Wed Jul 17, 2024 8:17 pm
Forum: Sunlit Earth
Topic: Nice rain yesterday ...
Replies: 6
Views: 182

Re: Nice rain yesterday ...

65535 shades of Grey? We only get 256 in UK.
We're far more hard done by :D

What a beautiful spray of yellow - never seen that before and probably never would have.
Thanks for sharing!
by EdAstle
Wed Jul 17, 2024 8:05 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Coronado & MEADE/Orion has closed down
Replies: 4
Views: 667

Re: Coronado & MEADE/Orion has closed down

I had no idea this Meade/Orion thing was so "legally sour". I like watching this guys vids now and then (Dylan O'Donnell), but there's a comment from an ex-lawyer (jongroubert4203) that raised my eyebrows: "Celestron and Meade were ABSOLUTELY colluding to squeeze Orion out of the mark...
by EdAstle
Tue Jul 16, 2024 9:23 pm
Forum: This is SolarChat !!
Topic: AR3738 in white light from the 11th of July (and attempt of animation)
Replies: 13
Views: 559

Re: AR3738 in white light from the 11th of July (and attempt of animation)

Thank you Ed! I seldom check for the Jetstream because whenever I have the opportunity to have a astrophotography session (which doesn't happen so often) it's worth a try! By the way, do you know if there is a website that gives the Jetstream as it was in a previous date? (And nice about UK in the ...
by EdAstle
Fri Jul 12, 2024 11:42 pm
Forum: Sunlit Earth
Topic: seestar m31 and friends
Replies: 4
Views: 229

Re: seestar m31 and friends

£500 is "nothing" these days. Although that attitude develops with age. I see Seestar and their ilk as the new "Polaroid" in the astro world. Instant gratification, and hopefully breadcrumbs for the new generation to pursue further. Our brave new world is forever advancing. Hurrah!
by EdAstle
Fri Jul 12, 2024 10:26 pm
Forum: This is SolarChat !!
Topic: Ha images taken on Jult 9 with the Mewlon 250
Replies: 11
Views: 826

Re: Ha images taken on Jult 9 with the Mewlon 250

I meant to add my thumbs up comment yesterday night but cloudflare said SC was down, or something. Each of those 3 images is a master class in contrast, focus, and perhaps skill ;) The "nice small filament" is beautiful. If a dark cloud looming over terawatts of ugly nuclear physics can be...
by EdAstle
Fri Jul 12, 2024 9:59 pm
Forum: This is SolarChat !!
Topic: AR3738 in white light from the 11th of July (and attempt of animation)
Replies: 13
Views: 559

Re: AR3738 in white light from the 11th of July (and attempt of animation)

Nice! And congratulations on SPOD! And well done anyone from Europe/UK managing to image anything at all. We're being sliced and diced will horrible jet stream activity. Daniele is from northern Italy and has this "seeing". A groovy rotatable view from netweather.tv: https://www.netweather...
by EdAstle
Fri Jul 12, 2024 9:31 pm
Forum: Sunlit Earth
Topic: seestar m31 and friends
Replies: 4
Views: 229

Re: seestar m31 and friends

Nice. In fact amazing what Seestar tech can achieve. M31 is what I christened my C9.25 on, on what must be nearly 20 years ago now. I saw a fuzzy blob with shape. But not much different to the shapeless fuzzy blob in my "beginners" TAL1. But I stared for ages pondering if any astronomers i...
by EdAstle
Fri Jul 12, 2024 9:03 pm
Forum: Solar Software
Topic: ImPPG version 1.9.2-beta
Replies: 1
Views: 824

Re: ImPPG version 1.9.2-beta

Thank you Filip. I've used IMPPG many times but I've only just read your tutorial and scripting guide. For others who also haven't yet RTFM: IMPPG tutorial IMPPG scripting The "Adaptive unsharp masking" is now more clear to me and will try it, if I ever see the Sun again. UK + Europe are b...
by EdAstle
Sat Jul 06, 2024 10:52 pm
Forum: Sunlit Earth
Topic: Thieves at the apricots.....
Replies: 3
Views: 518

Re: Thieves at the apricots.....

What a magnificent guest to have Kevin. It's nice when the locals pop in for a snack. There's an old gray rat that has recently appeared in my back garden. The local cats watch but leave him/her alone. Perhaps there is honour among thieves after all. I think my little thieves would all scarper if a ...
by EdAstle
Fri Jul 05, 2024 9:09 pm
Forum: SPoD Archive
Topic: Flare outburst along equatorial eastern limb, July 4th
Replies: 20
Views: 897

Re: Flare outburst along equatorial eastern limb, July 4th

I particularly like the glint in the 16:04 interior line about to connect. Well, I particularly love all of them! I swear blind my 32mm Svbony Plossl gave me the exact same views :D This was such a Jack-In-The-Box event. There was nothing there but 2 proms on the SE. Then a brightening. Then stuff a...
by EdAstle
Fri Jul 05, 2024 9:09 pm
Forum: This is SolarChat !!
Topic: Flare outburst along equatorial eastern limb, July 4th
Replies: 17
Views: 1029

Re: Flare outburst along equatorial eastern limb, July 4th

I particularly like the glint in the 16:04 interior line about to connect. Well, I particularly love all of them! I swear blind my 32mm Svbony Plossl gave me the exact same views :D This was such a Jack-In-The-Box event. There was nothing there but 2 proms on the SE. Then a brightening. Then stuff a...
by EdAstle
Fri Jul 05, 2024 8:36 pm
Forum: This is SolarChat !!
Topic: Today I was astonished
Replies: 8
Views: 850

Re: Today I was astonished

I am so glad you witnessed this, how exciting! I bet you were running about in happiness afterwards, I know I would have been :hamster: Jim caught some beautiful images of the event for you :) https://solarchatforum.com/viewtopic.php?t=45924 Alexandra Happiness, joy, wonderment, overly exuberant ex...
by EdAstle
Fri Jul 05, 2024 9:44 am
Forum: This is SolarChat !!
Topic: 2024 July 4th - Fireworks
Replies: 16
Views: 967

Re: 2024 July 4th - Fireworks

Yes! Bravo!!
It was amazing to watch through an eyepiece.
Now I can watch it again, and again...thanks for sharing these excellent images Simon.
by EdAstle
Fri Jul 05, 2024 9:44 am
Forum: SPoD Archive
Topic: 2024 July 4th - Fireworks
Replies: 20
Views: 1059

Re: 2024 July 4th - Fireworks

Yes! Bravo!!
It was amazing to watch through an eyepiece.
Now I can watch it again, and again...thanks for sharing these excellent images Simon.
by EdAstle
Fri Jul 05, 2024 9:33 am
Forum: This is SolarChat !!
Topic: Today I was astonished
Replies: 8
Views: 850

Re: Today I was astonished

I bet that was really something to see!! I would have been glued to the eyepiece! I was and glad I did! Wish I'd had the Baader Binos on but it wasn't even supposed to be a visual session - just tinkering with components and problem solving while the weather and seeing was bad. Then a lucky hole in...
by EdAstle
Fri Jul 05, 2024 9:20 am
Forum: This is SolarChat !!
Topic: Today I was astonished
Replies: 8
Views: 850

Re: Today I was astonished

Nice Ed! I saw an animation of the event on the Lunt Solar Scope Users FB page by Bo Edwards. Thank you Warren. I'm not on FB. If you saw my face you'd understand why :D It was hard to nail good focus in windy poor conditions on my 55" telly (indoors!) which is 10 feet away. Bigger isn't bette...
by EdAstle
Fri Jul 05, 2024 12:11 am
Forum: This is SolarChat !!
Topic: Today I was astonished
Replies: 8
Views: 850

Today I was astonished

I witnessed today the most magnificent solar eruption in my life. From a curious bright flat pancake to a ginormous eruption in 20 minutes. Images from GONG because I was gawping through the eyepiece when this kicked off: 15:30 https://gong2.nso.edu/HA/hag/202407/20240704/20240704153002Bh.jpg 15:40 ...
by EdAstle
Tue Jul 02, 2024 12:25 pm
Forum: This is SolarChat !!
Topic: What forces act upon material drawn back down in the Sun.
Replies: 5
Views: 391

Re: What forces act upon material drawn back down in the Sun.

The irony is I got sunburn reading Lucie's book on a hot Greek beach last year :oops:
Very absorbing. Both the book and my skin with not enough UV/IR filters scattered upon me.
by EdAstle
Tue Jul 02, 2024 3:13 am
Forum: This is SolarChat !!
Topic: What forces act upon material drawn back down in the Sun.
Replies: 5
Views: 391

Re: What forces act upon material drawn back down in the Sun.

Amazing isn't it, that "something from nothing" solar rain. I highly recommend Lucie Green's book "15 Million Degrees" - light enough to take on holiday, heavy enough to be of intellectual benefit. It covers the topic "how does stuff float away less than escape velocity?&quo...
by EdAstle
Fri Jun 28, 2024 10:15 pm
Forum: Solar Software
Topic: AutoStakkert; align multisession images
Replies: 4
Views: 505

Re: AutoStakkert; align multisession images

You've not heard of IMPPG? :shock:
Glad to have introduced you to each other - IMPPG is a brilliant and fast box of tricks.

GIMP is another free software which can create animated GIFs from aligned images...
by EdAstle
Fri Jun 28, 2024 2:16 am
Forum: This is SolarChat !!
Topic: Morning sun with ISTAR 228/F36 - 26.06.
Replies: 8
Views: 573

Re: Morning sun with ISTAR 228/F36 - 26.06.

The first image made me swear out loud - a verbal exclamation mark! That bizarre behemoth is astonishing. I'll need to check the "classification" topic to understand what class it is. I wish there were a more restrained "thumbs up" icon - us Brits do like to feign decorum - but t...
by EdAstle
Fri Jun 28, 2024 1:45 am
Forum: This is SolarChat !!
Topic: Near-UV and Ca K FD images taken on June 16
Replies: 9
Views: 490

Re: Near-UV and Ca K FD images taken on June 16

The 3rd image is particularly enthralling Christian.
I meant to have a quick look (it's 2am - I should be asleep) and 20 minutes later I'm still browsing the crisp details.
Fantastic.

If only Tak sold the central 70mm part of the lens to keep the cost down :-)
by EdAstle
Fri Jun 28, 2024 12:41 am
Forum: Solar Scope Modifications
Topic: Newton Rings phase change thru clocking
Replies: 0
Views: 544

Newton Rings phase change thru clocking

Using a £49.99 "LED Video Light Panel" in instead of a Ha lamp. I have banding issues in images. DERF -> scope -> TZ4S -> Lunt40 -> Circular Polarizer -> Lunt40 -> cam [Apollo M-MAX] Neither of the 2x rear Lunt40 etalons are tilted. So sweet spots / sweet rings shouldn't have much impact h...
by EdAstle
Thu Jun 27, 2024 1:07 am
Forum: This is SolarChat !!
Topic: Spain 2024-06-26
Replies: 27
Views: 869

Re: Spain 2024-06-26

Incredible Alexandra! Or, with perhaps better punctuation... Incredible, Alexandra! Both you and the images + animation are ;) That 11x mosaic is glorious. That's a very peculiar cheesy wotsit ejaculated into space. Just "odd". While all this was going on I was in the office having a lovel...
by EdAstle
Thu Jun 27, 2024 12:15 am
Forum: This is SolarChat !!
Topic: Observing with Quark Prominence
Replies: 3
Views: 376

Re: Observing with Quark Prominence

Hi Andrew - we've certainly been spoilt for choice with proms recently. Is it the USB socket on the Quark which needs replacing? When I got my Quark last year I thought it looked susceptible to accidental cable yanks etc. There's no strain relief available for it, unless you make your own (cable tie...
by EdAstle
Wed Jun 26, 2024 10:59 pm
Forum: Solar Software
Topic: AutoStakkert; align multisession images
Replies: 4
Views: 505

Re: AutoStakkert; align multisession images

Not that I know of. Perhaps using "expand" instead of "crop" might help produce more easily stackable frames. IMPPG (free - thanks Filip!) has an "Align Image Sequence" option. Not tried it yet, but sounds like what you're after. There are some animation gurus here who ...
by EdAstle
Tue Jun 25, 2024 9:05 pm
Forum: Sunlit Earth
Topic: My tiny friends have returned ....
Replies: 2
Views: 279

Re: My tiny friends have returned ....

Never heard of Scissor Bees - presume they cut leaves but will have to search engine the little critters!
Thanks for posting - I learnt (or will...) something new today.
Cheers, Ed.
by EdAstle
Tue Jun 25, 2024 12:43 pm
Forum: This is SolarChat !!
Topic: It nearly didnt fit - ar3712 @ f64
Replies: 5
Views: 338

Re: It nearly didnt fit - ar3712 @ f64

Thank you all for your kind words! Looks good on my 55" OLED telly :D (doubles as my PC "monitor" in my lounge). Though seeing it for real through an eyepiece, being the only entity in the Universe capturing those specific photons...something special about that. The ones on the monito...
by EdAstle
Tue Jun 25, 2024 12:23 am
Forum: Solar Scope Modifications
Topic: Can you boost a telecentric with a PowerMate? Seems so...
Replies: 13
Views: 635

Re: Can you boost a telecentric with a PowerMate? Seems so...

I feel I cheated on the pudding and didn't add enough sweat and tears. Neither of Lunt40s are tilted. They don't seem to need it. That's great! But if they did need some tilting, a better alternative would be peripheral pressure as described here . Yep I read that thread a few times! You don't leav...
by EdAstle
Mon Jun 24, 2024 11:48 pm
Forum: This is SolarChat !!
Topic: It nearly didnt fit - ar3712 @ f64
Replies: 5
Views: 338

It nearly didnt fit - ar3712 @ f64

I transplanted my "long tube of solar stuff" from my Vixen M80 to the Skywatcher 150 today. I was browsing the limb and caught this now very famous AR3712 loop. I've never seen one of these with my own eyes before. It's bloody incredible to view through an EP! Truly awesome. Panic stations...
by EdAstle
Mon Jun 24, 2024 11:08 pm
Forum: This is SolarChat !!
Topic: A three hour look at the M1 flare structure
Replies: 8
Views: 774

Re: A three hour look at the M1 flare structure

That is thoroughly captivating. Amazing watching these vids you guys n gals do.
Keep 'em coming!
by EdAstle
Mon Jun 24, 2024 1:28 pm
Forum: Solar Scope Modifications
Topic: Can you boost a telecentric with a PowerMate? Seems so...
Replies: 13
Views: 635

Re: Can you boost a telecentric with a PowerMate? Seems so...

Great image! Seems to be working as it should at that high an f ratio. I'd been studying Chistians informative charts regarding mica vs air spaced vs collimated vs telecentrics before I bought that pricey EO 0.5nm. They showed "more is more" for Lunts behind a TZ4S. Ideally f40-ish. I alr...
by EdAstle
Mon Jun 24, 2024 1:18 pm
Forum: Solar Scope Modifications
Topic: Can you boost a telecentric with a PowerMate? Seems so...
Replies: 13
Views: 635

Re: Can you boost a telecentric with a PowerMate? Seems so...

Interesting.. wouldnt it be cheaper / easier to go with a Quark + Lunt40 ds setup? I bought a Quark at the start of 2023. It was awful. 1/3 of the image was "white light only", as if an internal filter had snapped or something. Returned it and bought a Lunt40 with the refund. I bought ano...
by EdAstle
Sun Jun 23, 2024 11:44 pm
Forum: Solar Scope Modifications
Topic: Can you boost a telecentric with a PowerMate? Seems so...
Replies: 13
Views: 635

Re: Can you boost a telecentric with a PowerMate? Seems so...

I feel I cheated on the pudding and didn't add enough sweat and tears. Neither of Lunt40s are tilted. They don't seem to need it. I also moved the EO 0.5nm Ha blocker from the nose of the TZ4S to the nose of the camera. I thought it might work better there, in "less convergent light rays"....
by EdAstle
Sun Jun 23, 2024 8:54 pm
Forum: Solar Scope Modifications
Topic: Can you boost a telecentric with a PowerMate? Seems so...
Replies: 13
Views: 635

Can you boost a telecentric with a PowerMate? Seems so...

I put a 2x PowerMate before the TZ4S. Seems to work ok. Altair "152" DERF + Adapter -> Vixen M80 f/11 -> Televue 2x PowerMate -> TZ4S -> Lunt40 -> B+W Circular Polarizer -> Lunt40 -> EO 656.3 0.5nm blocking filter -> Player One Apollo M-MAX I reasoned putting the 2x there would simply make...
by EdAstle
Sun Jun 23, 2024 2:18 am
Forum: This is SolarChat !!
Topic: The Kosovo National Planetarium and Observatory is open!
Replies: 15
Views: 668

Re: The Kosovo National Planetarium and Observatory is open!

Well done Pranvera. Well done Stephen. Between you and many others (and much wrangled funding + donations) you got it done! A nice article about it here: https://news.ucsc.edu/2024/06/kosovo-observatory.html It's hard to believe the "space age" has been here since 1957, yet there are parts...
by EdAstle
Sat Jun 22, 2024 9:10 pm
Forum: This is SolarChat !!
Topic: Late afternoon Close-up selection in Whitelight 22nd June 2024.
Replies: 8
Views: 471

Re: Late afternoon Close-up selection in Whitelight 22nd June 2024.

That's awesome x2 !
Sod Netflix - I'm going to watch that a few times more!
by EdAstle
Sat Jun 22, 2024 2:26 pm
Forum: This is SolarChat !!
Topic: Faintest prom on 21 June
Replies: 5
Views: 349

Re: Faintest prom on 21 June

Thanks Mark. All this solar stuff on the back of the SW150 "yard canon" has made it ridiculously long. Noon viewing means lying on the ground, or digging a pit for me to stand in. I'm not complaining! It's proving to be a nice system. Another faint fuzzy "pillar" from the 21st. h...
by EdAstle
Sat Jun 22, 2024 1:58 am
Forum: Solar Astronomy Shop and Swap
Topic: Baader - AstroSolar Photo Film OD 3.8
Replies: 11
Views: 2071

Re: Baader - AstroSolar Photo Film OD 3.8

OD3.8 rolls are still unobtanium from Baader. And most likely always will be. https://www.baader-planetarium.com/en/astrosolar-photo-film-od-3.8.html Select "Version" = 100x50 "3.8 is only available in sheets of 200x290 mm. Other sizes are not available". You can buy ready made A...