Heya,
Fair conditions this morning, after checking Gong, and noted that we got the designation for AR2721 as a sunspot. It's two visible umbra have already decayed since yesterday, looks like to be a very short lived spot. Was hoping it would stay another few days as it approached the limb, as my favorite spots are limb spots. Yesterday's largest prom already rotated on, but the western prom group has really exploded and is full of activity and lots of big groups. I played it safe with my limited time with the weather this morning and imaged in HA with a focal reducer to lower the scale and in CaK with a 2x barlow to also keep the scale lower.
Celestron 150mm F8 Refractor + Quark + 0.5x Focal Reducer + ASI174MM (HA)
Celestron 150mm F8 Refractor masked to 100mm F12 + PST CaK + Chroma 393.4 + 2x Barlow + ASI174MM (CaK)
Colored:
B&W:
Very best,
Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
Beautiful images, Marty, your Quark behaves very well.
Raf
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
A great set, Marty ! Great detail in the proms and CaK
Franco
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
Thanks all, I'm happy to even see the sky during hurricane season here!
Very best,
Very best,
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
Great stuff!
Well done.
Well done.
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
Marty, super session.
Best regards,
Eric.
Best regards,
Eric.
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Re: Fantastic Prom Group Today! Sunspot 2721, HA & CAK | Sep 9th 2018
What superb prominences!! I saw them on GONG but sadly the weather never played fair this weekend for me.
Alexandra
Alexandra