Hα and CaK animations, 90 mm and 200 mm aperture
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Hα and CaK animations, 90 mm and 200 mm aperture
On Sunday I had probably the last good session this season. Despite the Sun being quite low (25-27°) the seeing was good, and the scattered thin clouds and smeared contrails didn't seem to hurt (beside the slightly varying brightness).
Everything shot with FLIR Blackfly S (IMX273), stacked in AS!3 and processed with ImPPG.
RC8 + Aries ERF + Lunt 50 etalon; AR2891:
Animation (only some minor activity); even more good frames than before, I especially like the synchronous downward crawl of small features in the lower-mid (20-second intervals, 1:19 h total):
You'll notice the horizontal striping; it's something out of the sensor (in parts of the stack, every second line is darker). They only come out in the RC8 stacks, I suspect AS!3 latches onto them and brings them out due to general fuzziness of the raw frames. (They don't appear in Hα or CaK stacks from 90 mm). Pushing unsharp masking as I did here underlines them even more. The AS!3's function "Row Noise correction (horizontal lines e.g. IMX174 sensors)" didn't help (i.e. it removed them, but introduced another type of horizontal moiré). I'll see if I can do something about it in software (preferentially already in the stacked images).
Levitating prominence:
Animation (20-second intervals, 0:23 h total):
90 mm refractor, Lunt CaK module, PowerMate 2.5x:
Thanks to Blackfly's speed I could record a high-cadence animation (10 s videos of 1200 frames each, 5-second breaks); alas, no interesting activity (0:37 h total):
Everything shot with FLIR Blackfly S (IMX273), stacked in AS!3 and processed with ImPPG.
RC8 + Aries ERF + Lunt 50 etalon; AR2891:
Animation (only some minor activity); even more good frames than before, I especially like the synchronous downward crawl of small features in the lower-mid (20-second intervals, 1:19 h total):
You'll notice the horizontal striping; it's something out of the sensor (in parts of the stack, every second line is darker). They only come out in the RC8 stacks, I suspect AS!3 latches onto them and brings them out due to general fuzziness of the raw frames. (They don't appear in Hα or CaK stacks from 90 mm). Pushing unsharp masking as I did here underlines them even more. The AS!3's function "Row Noise correction (horizontal lines e.g. IMX174 sensors)" didn't help (i.e. it removed them, but introduced another type of horizontal moiré). I'll see if I can do something about it in software (preferentially already in the stacked images).
Levitating prominence:
Animation (20-second intervals, 0:23 h total):
90 mm refractor, Lunt CaK module, PowerMate 2.5x:
Thanks to Blackfly's speed I could record a high-cadence animation (10 s videos of 1200 frames each, 5-second breaks); alas, no interesting activity (0:37 h total):
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Wow!! what a lot of work, well done, I thoroughly enjoyed all of these I think the levitating prom is my favourite, how cool is that!!
Alexandra
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Excellent captures Filip and thanks vm for sharing
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Wonderful! Love the high res animations, quite a bit of fine detail movement is visible. Thanks for posting!
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Warren
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Orion ED80T CF
Meade ETX LS6
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Lunt WL Wedge
Baader Photographic Film
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Player One Saturn-M SQR
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
That’s a lot of work, Filip. Very nicely done.
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Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Thank you, everyone.
Thanks to Blackfly I've almost filled up my hard drive (goodbye Chameleon's 30-45 fps, here it was 90-120 fps), I think it's time to go 2 TB next season!
Another thing - for some reason lady beetles were swarming around my equipment (especially as it got warmer before noon); in the end I had maybe 20 of them at any given time crawling all over the mount and telescope. Including the ERF. For a few minutes I was blowing them off, but then realized it's like having a 7 mm obstruction (or two) on your 200 mm RC - probably doesn't matter much. Two specimens even found their way inside (through the small gaps on the underside of the ERF cell - I taped them shut once I noticed) and were occasionally crawling on the tube baffles or the ERF's underside.
Thanks to Blackfly I've almost filled up my hard drive (goodbye Chameleon's 30-45 fps, here it was 90-120 fps), I think it's time to go 2 TB next season!
Another thing - for some reason lady beetles were swarming around my equipment (especially as it got warmer before noon); in the end I had maybe 20 of them at any given time crawling all over the mount and telescope. Including the ERF. For a few minutes I was blowing them off, but then realized it's like having a 7 mm obstruction (or two) on your 200 mm RC - probably doesn't matter much. Two specimens even found their way inside (through the small gaps on the underside of the ERF cell - I taped them shut once I noticed) and were occasionally crawling on the tube baffles or the ERF's underside.
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
A very nice set of images Filip...well done
Are your lady beetles looking for a winter home? Lots of them (and other insects) massing on the exterior walls here looking for an entry points to overwinter.
Brian
Are your lady beetles looking for a winter home? Lots of them (and other insects) massing on the exterior walls here looking for an entry points to overwinter.
Brian
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Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Right, I've read up on it recently. But this was a field session, lots of grass next to a piece of woodland. Maybe they just liked all the warmed-up metal.
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
WoW, nice closeups!!
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Excellent set, Filip. I really like the CaK animation, I have not seen one before.
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Re: Hα and CaK animations, 90 mm and 200 mm aperture
Filip:
Beautiful images all of them, thanks for sharing.
Best regards.
Eric.
Beautiful images all of them, thanks for sharing.
Best regards.
Eric.