May 15 H alpha and May 10 CaK
- p_zetner
- Way More Fun to Share It!!
- Posts: 1644
- Joined: Sun Mar 18, 2012 4:59 pm
- Location: Winnipeg, Manitoba, Canada
- Has thanked: 166 times
- Been thanked: 719 times
May 15 H alpha and May 10 CaK
Hi Everyone.
I should have paid more attention to the weather forecast. The day began with beautiful clear skies (not a cloud in sight) so I began the process of gearing up for an imaging session. I set up the C8 scope and, as the Daystar came to temperature and the Sun cleared the neighbour's tree, started to focus and prepare for recording. I noticed the exposure settings had to be continually nudged up and, removing my head from the shroud (cardboard box), discovered a huge bank of high cirrus rolling in. I quickly managed two videos of AR12741 before the cloud cover became too dense and here is the result. I have to admit, it's not bad considering the haze I had to shoot through. All in all, it was a morning session consisting mostly of setting up, then two quick videos and then taking down!
Equipment: Aries ERF, Celestron C8 Edge, Moonlite CHL focuser, ~f/46 Telecentric, Daystar QPE 0.6A, ~ f/35 FR, PGR USB3 Grasshopper IMX174.
Here is a CaK panorama of ARs 12741/12740 from May 10. I had taken a number of H alpha videos with the C8 then switched to the Stellarvue refractor for the CaK. By this time the seeing was seriously degrading but I shot a number of videos anyway. The big difficulty with the resulting images was stitching them together for a 3-pane mosaic. Both Autostitch and Photomerge balked at the assignment but, ultimately, I managed some success with stitching 2/3 panes in Photomerge and compositing the remaining one by hand.
Equipment: Stellarvue 115mm f7. Chroma 380/ IDAS UV-IR cut, Omega CaK 0.2nm, Lunt CaK B1800 Etalon. (Sys.~f37) PGR USB3 Grasshopper IMX174.
Cheers.
Peter
I should have paid more attention to the weather forecast. The day began with beautiful clear skies (not a cloud in sight) so I began the process of gearing up for an imaging session. I set up the C8 scope and, as the Daystar came to temperature and the Sun cleared the neighbour's tree, started to focus and prepare for recording. I noticed the exposure settings had to be continually nudged up and, removing my head from the shroud (cardboard box), discovered a huge bank of high cirrus rolling in. I quickly managed two videos of AR12741 before the cloud cover became too dense and here is the result. I have to admit, it's not bad considering the haze I had to shoot through. All in all, it was a morning session consisting mostly of setting up, then two quick videos and then taking down!
Equipment: Aries ERF, Celestron C8 Edge, Moonlite CHL focuser, ~f/46 Telecentric, Daystar QPE 0.6A, ~ f/35 FR, PGR USB3 Grasshopper IMX174.
Here is a CaK panorama of ARs 12741/12740 from May 10. I had taken a number of H alpha videos with the C8 then switched to the Stellarvue refractor for the CaK. By this time the seeing was seriously degrading but I shot a number of videos anyway. The big difficulty with the resulting images was stitching them together for a 3-pane mosaic. Both Autostitch and Photomerge balked at the assignment but, ultimately, I managed some success with stitching 2/3 panes in Photomerge and compositing the remaining one by hand.
Equipment: Stellarvue 115mm f7. Chroma 380/ IDAS UV-IR cut, Omega CaK 0.2nm, Lunt CaK B1800 Etalon. (Sys.~f37) PGR USB3 Grasshopper IMX174.
Cheers.
Peter
Last edited by p_zetner on Fri May 17, 2019 1:30 am, edited 2 times in total.
- ffellah
- Way More Fun to Share It!!
- Posts: 11172
- Joined: Mon Oct 27, 2014 6:46 pm
- Location: Westport, CT USA
- Has thanked: 9145 times
- Been thanked: 6026 times
- MalVeauX
- Way More Fun to Share It!!
- Posts: 1858
- Joined: Tue May 09, 2017 7:58 pm
- Location: Florida
- Has thanked: 1171 times
- Been thanked: 1360 times
- marktownley
- Librarian
- Posts: 42274
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20442 times
- Been thanked: 10248 times
- Contact:
Re: May 15 H alpha and May 10 CaK
Two excellent images there Peter!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
- Carbon60
- Way More Fun to Share It!!
- Posts: 14209
- Joined: Wed Mar 07, 2012 12:33 pm
- Location: Lancashire, UK
- Has thanked: 8418 times
- Been thanked: 8165 times
Re: May 15 H alpha and May 10 CaK
Very nice images, Peter, even if the session was short and sweet. Worth the pain to get the gain.
I've lost count of the times I've set up only to be disappointed with the conditions; blue sky one minute and clouds the next, so it seems.
Stu.
I've lost count of the times I've set up only to be disappointed with the conditions; blue sky one minute and clouds the next, so it seems.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Re: May 15 H alpha and May 10 CaK
Nice shots Peter. Even in less than ideal conditions, larger aperture images have a characteristic quality that is appealing. I had to laugh thinking about the many times I had to bump up the exposure. I too had my head in the shrouds.
Phil
Phil
- Montana
- Librarian
- Posts: 34563
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17672 times
- Been thanked: 8793 times
Re: May 15 H alpha and May 10 CaK
Sounds like the story of 90% of my sessions
However, you got some pics to die for, so that must have made you smile
Alexandra
However, you got some pics to die for, so that must have made you smile
Alexandra
- MAURITS
- Way More Fun to Share It!!
- Posts: 8507
- Joined: Tue Nov 27, 2018 4:37 pm
- Location: Belgium
- Has thanked: 2412 times
- Been thanked: 4787 times
- Contact:
-
- Almost There...
- Posts: 1160
- Joined: Tue Jan 03, 2012 3:32 pm
- Location: Begues, Barcelona, Spain
- p_zetner
- Way More Fun to Share It!!
- Posts: 1644
- Joined: Sun Mar 18, 2012 4:59 pm
- Location: Winnipeg, Manitoba, Canada
- Has thanked: 166 times
- Been thanked: 719 times
Re: May 15 H alpha and May 10 CaK
Thanks everyone.
Here I thought the gods of meteorology were just picking on me! A hazard of the hobby, clearly! (Hmmm....”clearly”...)
Bart: I’ve been very lazy about recording my exposure settings lately. The CaK shots are probably around 5ms. I try to keep it as short as possible without boosting camera gain too much. I’ll check next time.
Cheers.
Peter
Here I thought the gods of meteorology were just picking on me! A hazard of the hobby, clearly! (Hmmm....”clearly”...)
Bart: I’ve been very lazy about recording my exposure settings lately. The CaK shots are probably around 5ms. I try to keep it as short as possible without boosting camera gain too much. I’ll check next time.
Cheers.
Peter
- eroel
- Way More Fun to Share It!!
- Posts: 9408
- Joined: Mon Dec 19, 2011 10:45 pm
- Location: México D.F.
- Been thanked: 4904 times