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Last week I recorded a calcium limb surge. Later that night I discovered another user in the world on astrobin (Warren Spreng) who had captured the same event in hydrogen alpha at nearly the same focal length. The was an incredibly rare occurrence.
I merged our two captures together, and this is the result. Red is the hydrogen alpha data, blue is the calcium data.
I do believe this has a "one in a billion" capture odds, and few(if any) amateurs have ever been able to share and merge this type of time-lapse data.
this little active region put on quite a show and i captured till i ran out of drive space.
160 frames x 40ms delay. (220 frames in each stack) (8 seconds per video capture) (160 captures)
Animated with https://gifmaker.org/
Cropped with avidub. Logo applied with avidub . Levels adjusted with avidub.
Files converted with PIPP and registax 5.1
Three pass Processing done in ImPPG (.xml files attached)
127mm x 1200mm explore scientific first-light achromat with Meade 2x tele-negative barlow. Basler aca720-520um camera.
Baader planetarium 36mm B-BCCD filter for energy rejection
1 angstrom calcium filter from Apollo Lasky @ http://calcium.solar
Thanks for watching!
1.xml 2.xml 3.xml
I have been really inactive here, so apologies.
Here are a few images of the Solar Eclipse, happened on 21 June 2020. It was annular, but partial from Mumbai region (around 60% covered). Maximum phase of the eclipse was at around 11:30 a.m. IST.
This is actually onset of our 4-5 months of monsoon season, so getting decent skies was a tough part. Luckily got decent cleared patches here and there with occasional rains.
I had to use whatever I had to make a comfortable view of the eclipse, thanks to the lockdown.
I simply took a box, made a whole of the size of the eyepiece on one end, cut the opposite side and attached a paper. I had to do little bit here and there attachments for perfect angle. But was really happy with the results.
One of the best experience was when I was seeing the Sun while it was drizzling at the same time.
I finally made the leap and purchased the Sky-Watcher SolarQuest Mount from FLO. I was a little sceptical about a perceived "one trick pony" but it does it well. and is such a simple set-up. I've not seen an awful lot of information on these so though I would share my initial thoughts and an unboxing video in the link below.
Tracks the sun for hours and stays in the centre of view the whole time. The 8 way slider is for fine adjustment if required with quite a slow slew rate. It takes 8 x AA batteries which I was a little nervous about how long they would last but as its only making slight adjustments, seem to be lasting although there is the option of a 12v external supply.
It's a very compact set up for storage and travel and a cinch to set up. Place on level ground using the built in bubble and turn on. Its surprisingly quick to level, get a GPS fix and track, tracks through the thinner clouds and if you do get thicker clouds you get a warning LED light up. Simplicity is genius.
I know my setup might look like a cardboard box painted back inside ( I call it the command centre) but hey, it works.
Happy for any questions you have.