Posts by hendric@astronomy.city
 (DIR) Post #AcWCkhurX2cVKT8ocq by hendric@astronomy.city
       2023-12-06T02:12:36Z
       
       0 likes, 0 repeats
       
       @BrodieOnLinux SMT? Is Smut off the table?
       
 (DIR) Post #Ad8hrPTgiw8Bog2vrs by hendric@astronomy.city
       2023-12-15T16:43:40Z
       
       0 likes, 0 repeats
       
       @alilly OK here is what I just ordered.  I didn't increase the overall contrast because that represents the modern UI tendency of light gray on dark gray that drives me nuts. Probably a poor artistic choice 😆
       
 (DIR) Post #Ad8hrQFXr0PcD6R9Si by hendric@astronomy.city
       2023-12-23T06:18:20Z
       
       0 likes, 1 repeats
       
       @alilly They actually came out pretty well!
       
 (DIR) Post #AhfGIMrh0BCL0qUy24 by hendric@astronomy.city
       2024-05-08T00:28:43Z
       
       0 likes, 0 repeats
       
       @futurebird Tulip: Though it may take a thousand years, we shall be _free_.
       
 (DIR) Post #AhpPd9TaomQijnoKFk by hendric@astronomy.city
       2024-05-03T21:35:01Z
       
       0 likes, 0 repeats
       
       "Oh yeah we expect you be domain expert in computer vision and imaging, and also a plumber." 😖
       
 (DIR) Post #Ahr2oey2ANDsxeUHy4 by hendric@astronomy.city
       2024-04-10T03:12:08Z
       
       0 likes, 0 repeats
       
       Not gonna lie, giggled a little when the stacked images came through. I wasn't sure what I was going to get with a such a wide-angle telescope on galaxies, normally targets that need magnification. But I am stunned that my moronic brain managed to get good enough data to make these pictures. Imagine me with my 90 mm/3.5" telescope with no guiding (admittedly an expensive HAE43EC mount) and old DSLR, taking pictures of galaxies that _don't even have a name_. Wow.
       
 (DIR) Post #AhszXf96L2Lh2smtHc by hendric@astronomy.city
       2024-05-04T18:08:30Z
       
       0 likes, 0 repeats
       
       @liliputing You've got a typo in the Mastodon address in your article footershttps://liliputing.com/lilbits-raspberry-pi-compute-module-4s-now-comes-with-up-to-8gb-ram-modular-laptop-maker-framework-to-expand-into-new-categories/
       
 (DIR) Post #Aht7CXeHofDPLVoWSu by hendric@astronomy.city
       2024-04-19T04:49:06Z
       
       0 likes, 0 repeats
       
       Well, it's the best I got, I guess"Art is never complete, only abandoned"https://hendric.smugmug.com/Hobbies/Astronomy/Solar-Pictures/20240408-Lampasas-Total-Solar-Eclipse#AmateurAstronomy #SolarEclipse2024
       
 (DIR) Post #AhwDHPJfPFN49Mki00 by hendric@astronomy.city
       2024-05-04T17:08:07Z
       
       0 likes, 0 repeats
       
       Solar Processing NotesUse 20% stack from AutoStakkert!4, drizzle 1p5xUse waveSharp,You will need to adjust for your image scale, mine is: .12/40.5, .12/21, .12/11Save as 16 bit tiffimport to GIMPI used this video to work out this flow, in case you need a visual aid: https://www.youtube.com/watch?v=KRHwyLcutyEuse 1/
       
 (DIR) Post #AhwDHQRVDbEVdxQTqq by hendric@astronomy.city
       2024-05-04T17:09:17Z
       
       0 likes, 0 repeats
       
       Select -> by Color Tool with Threshold set to ~30 to 60 to select outside the disk for prominences. Pick a black spot away from any data. Lower numbers means more of the disk will be unselected.  Higher numbers mean you will adjust the brightness deeper into the disk. When you select the spot, the selection crawlies will show up, they may show up in sunspots. Shift-Q to enter Quick Mask mode to use the brush to adjust the masked area. .  By default, the red area is what will be ignored.
       
 (DIR) Post #AhwDHRWVCUpIzklzHc by hendric@astronomy.city
       2024-05-04T17:09:41Z
       
       0 likes, 0 repeats
       
       Now select the brush tool with 100 hardness, and a size ~25. You want the Foreground (top left) color in the swap widget to be black.  Initially you want to mark additional areas to ignore, so fill in sunspots and other areas that should be marked red. To help see the mask clearer, on the right hand side select Channels and disable the R/G/B channels by clicking on the eye next to each one and just leave the quick mask.
       
 (DIR) Post #AhwDHTbtRQKLT3JJxo by hendric@astronomy.city
       2024-05-04T17:10:01Z
       
       0 likes, 0 repeats
       
       Now swap the foreground/background colors with the little angle arrow so that white is the foreground color. What you want to do now is erase the red outside the disk and on your proms, so that they can get adjusted. Zoom in and clean up the area so the prom is cleanly chosen.
       
 (DIR) Post #AhwDHVu2uu2IZvoqXI by hendric@astronomy.city
       2024-05-04T17:10:15Z
       
       0 likes, 0 repeats
       
       You may want to experiment with changing the hardness to ~50% and the size to 15 and brush the edge of the sun's disk so that the mask isn't razor sharp. This will feather your adjustments in to the edge of the sun so that the edge doesn't "float" above the surface. Still trying to get a good method here.Reactivate the RGB channels and deactivate Quick Mask with Shift-Q or by clicking the little red square outline at the bottom left of the image window.
       
 (DIR) Post #AhwDHYHA5viNwCeKqO by hendric@astronomy.city
       2024-05-04T17:10:49Z
       
       0 likes, 0 repeats
       
       Use Colors -> Curves to adjust the brightness of the proms. Here i usually grab the top right corner and drag it left to about the 60% position.Toggle the mask with CTRL-I. Use Colors->Curves to adjust the surface, adjust curves to give a bright plage area,lower white to 90 or 95? Don't raise black, it will make the edge darkening more obvious and separate the proms from the surface.
       
 (DIR) Post #AhwDHagl7jNXQAdo1I by hendric@astronomy.city
       2024-05-04T17:10:59Z
       
       0 likes, 0 repeats
       
       For colorizing (I know you know how to do it, just including for completeness), use Colors ->Levels. Change channel to Green, and to the right of the Clamp Output box, change the 100% to 75 or 85%. Change the channel to Blue, and set that to 50%. This gives a nice pleasing yellow color. I think that looks better than the actual far-red of H-Alpha.File -> Export As, change the file extension to JPG.
       
 (DIR) Post #Ai2UDsZxWvsTuy2INs by hendric@astronomy.city
       2024-04-16T00:55:55Z
       
       0 likes, 0 repeats
       
       Tired: Getting banned from a server.Wired: Banning yourself from all your single-player games.#VintageStory
       
 (DIR) Post #Ai2UDuFpIkxh76dFHU by hendric@astronomy.city
       2024-04-16T00:56:20Z
       
       0 likes, 0 repeats
       
       I laugh only because I could see myself do this. :D
       
 (DIR) Post #Aj5rOTF5AO9SIGF2oK by hendric@astronomy.city
       2024-06-19T18:19:00Z
       
       0 likes, 0 repeats
       
       @davidrevoy Does this Gelatinous Cube do a great exfoliation or what?? :blobcatinnocent:
       
 (DIR) Post #Ak7QSfTEMyPUOMcNpQ by hendric@astronomy.city
       2024-07-20T04:32:02Z
       
       0 likes, 0 repeats
       
       @OffTheBooks @futurebird Mastodon has a few tools to help with that.   You can put people in lists, and enable removing their posts from your timeline to enjoy when you want to dip in.You can hit the bell on a profile page and you'll get a notification for every post.And you can mute an account with a time limit, If they're hitting your timeline too much right now due to some event.
       
 (DIR) Post #AkauPKQqlV7WTzfMgK by hendric@astronomy.city
       2024-08-03T15:40:39Z
       
       0 likes, 0 repeats
       
       @futurebird Journey the Relentless.*goes off exploring in every video game*