H-alpha full disk 19 March

[sheri_barri]

Missed the eruption earlier today but managed to catch the remaining disk features. The prominence activity was certainly interesting with several fascinating structures.

Thank you for looking.

Sheri

[Cordulegaster]

Nice image. Thanks for sharing.

[msinclairinork]

Fascinating that they are!

Love the big one at the north/12oClock limb.

Great image Sheri!

Michael

[RikM]

Magic.

[Rossco72]

Nice image Sheri

Another for the Lunt site??

[astroimpulse]

Stunning

[gost]

Really lovely image with nice details. Keep up the good work!

[RogerTheDodger]

Lovely image

[The Sailor]

Great, nice to this, thanks

Jim

[Dreamsphere]

Seriously impressive and a very professional, stunning image.

[sheri_barri]

Thank you for the kind comments. Still working on the colouration to best enhance the features and always pleased to hear feedback or suggestions.

Cheers,

Sheri

[Merlin66]

Sheri,

How are you getting on with the tuning of the double stack??

[sheri_barri]

The tuning seems to be okay. Hope the images show this. It is just a matter of tuning the single stack so that it is evenly enhanced then tuning it double stacked the same so it is even. There seems to be a sweet spot balance between the two but will never be 'perfectly' enhanced evenly across the image from what I have found so far. I try to keep the poorer area out of the main activity to draw the eye away. If you have any suggestions or observations, I am always interested.

Cheers,

Sheri

[Merlin66]

Based on the work I'm currently doing with a SM60/ PST double stack, I think you could get even more surface resolution. Your full disk images don't give you the opportunity to "show off" the maximum detail I think you could achieve. A couple of close-ups at f25-f30 would be nice. I've mentioned before the methods I use to detune each etalon to give minimum bandwidth, so it's really a matter of trial and error with your set-up.

[ollypenrice]

Great image. I just - only just - caught the previous freworks and remember this phase very clearly. It looks darned good to me.

Olly

[RobH]

You raelly have got this solar stuff nailed Sheri

Very impressive image.

Cheers

Rob

[Rossco72]

Sheri,

Are these pics mosaics or full disc images? Which of your cameras are you using?

[sheri_barri]

I've tried the detuning method for enhancing certain regions and it does seem to work well. For the full disk though, as close to overall 'evenness' of the filtering remains the goal although it is at the expense of sharpness of individual features. Hope to try a bit more of the close ups when there is more consistent cloud free weather. Been a bit iffy this early in the spring for long stretches of clear skies to experiment with. Thanks for the reminder to keep working on it!

The full disks are one shot. The skynyx 2.1 has a chip that just fits the full disk which is a nice combination on the Lunt60.

[WhiteShiva]

Beautiful picture!

Could I ask what it means when you say double stacked? Am not too familiar with solar observing. Hope this isn't a daft question lol