Jet Proms and Coronal Rain - 18th april

[marktownley]

The sun was in and out today, with varying degrees of seeing and transparency so I spent some time playing with some kit, trying to get the computer faster and the scope getting more light through. The seeing was not playing ball for the HaT today, so instead I trued a setup i'm trialing on the 100mm Tal100R refractor, with the double stack quark at 3m focal length and the PGR Chameleon 3 with 2x2 binning. I should have done a flat, there's dancing bunnies.

First off AR12650 (has since be declassified) over 10 minutes, 4 frames per minute.

depart-ar-bw-original by Mark Townley, on Flickr

depart-ar-colour-640l by Mark Townley, on Flickr

Next, the reemerging active regions from a couple of weeks ago, over 5 minutes, 4 frames per minute.

limb-ar-bw-640 by Mark Townley, on Flickr

limb-ar-colour-640 by Mark Townley, on Flickr

Running at 1-2ms exposure seems to cut through the worst of the seeing. Not sure what the weather for the next couple of days will hold, each forecast is different...

Hope you like.

Mark

[Derek Klepp]

Good set Mark especially the animation

[ffellah]

I like, Mark.

Franco

[PDB]

Looks good Mark.

Rgrds,

Paul

[mattwastell]

Looking good - there appeared to be a big spew & loop proms according to GONG - I hope others had a chance at them!

[Montana]

Some lovely dancing spicules there Mark lovely to see this AR returning, hopefully with lots of activity over the next week or so
Double stack Quark, is that 2 quarks? you mean you have 2 that work.
Alexandra

[JohnW]

Nice stuff Mark - I like the coloured ones. Cheers, John W.

[Valery]

Nice, really nice animations, Mark!

I see you finally is close to the point where you will use this aperture at full potential.

BTW. How do you do so short exposure at DS? And what is the DS configuration?


Valery

[eroel]

Mark:
Very nice images.
Best wishes,
Eric.

[robert]

I love animations, beautifully static, nicely done... shame about the bunnies!
Robert

[MapleRidge]

Hi Mark...

The animations are superb...bunnies and all

Well done!!!

Brian

[marktownley]

Thanks all for your kind words, I wish i'd bothered to flat the image now

I see you finally is close to the point where you will use this aperture at full potential.

BTW. How do you do so short exposure at DS? And what is the DS configuration?


Valery

Hi Valery, this is only the 100mm Tal Scope. Daystar Quark, Naked PST etalon, Baader 0.7x telecompressor.

To get such short exposure is simple; I use the PGR Chameleon 3 (2048x1536px) with 2x2 binning to give me a 1024x768 frame with effective 6.9um pixels, this makes the image slightly undersampled for the fl used, but it means the exposure time is 1/768s (1-2ms), I can get about 70fps with this, which for my coal powered laptop is fast!

[Valery]

Thanks a lot, Mark!

Do you use the Quark and PST etalon with Fred's telecentric or with a native Quark's telecentric?

Also, does the PST etalon seats in front of Quark or behind it?


Thanks,

Valery

[marktownley]

Do you use the Quark and PST etalon with Fred's telecentric or with a native Quark's telecentric?

Also, does the PST etalon seats in front of Quark or behind it?

In this case i'm using the Quarks telecentric with the PST etalon behind the quark (camera side) and the telecompressor after the PST etalon.

I must confess i'm very keen to try the new Baader 0.4x solar telecompressor and their new TZ3 telecentric.

[Carbon60]

Hi Mark,

I've been travelling and missed this one. Very nice animations there, mate. There are some interesting dynamics going on which have been beautifully captured.

Stu.