Comet 12P/Pons-Brooks


Very nice capture despite some idiot (me) polluting the sky with a laser pointer while you were imaging. :blush:

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I notice that you were able to capture so much of the tail that it continues beyond the edge of the frame. That must have been a surprise.

Is there one specific filter that was most effective to bring out the tail?

Tail detail: Locking onto the comet core, tracking it at its separate speed from the starfield, doing the 1-minute subs, then stacking the core data is the real “magic trick” for the tail details.

No one will ever get perfect details without tracking the comet’s core. All the other images you see of any comet that looks like a “fuzzball” are just a stack of people taking subs at sidereal rate.

Filters: The luminance filter with a monochrome camera is always the “detail king”. BUT you can only use a LUM filter from a dark sky location, not in the city, no way Jose.

Also, my camera rotation was locked into place because I was working on a mosaic that night. So, if I had rotated my camera, I could have fit more tail in frame.


It looks like this comet is currently naked eye visible in a dark sky. It will be even brighter when the eclipse happens so would be a good object to look at that weekend just after Sunset.

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With it this close to the horizon, the photos which frame it against against something (interesting) in the foreground may be very cool.

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Yep, I agree. If I had time, I would zip out to a Bortle-1 and do a nightscape with it.

I’ll try and remember to get a nightscape of it in Texas (weather permitting").

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I saw your Flickr post today. Awfully pretty picture. I really like the color you captured. Hurray for CRO.

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Thank you Marvin :+1::+1:

See the explosive ‘devil comet’ get its tail ripped off by a solar storm days before its close approach to the sun.

A surprise coronal mass ejection recently smashed into Comet 12P/Pons-Brooks, briefly causing the “devil comet” to lose its tail — and a NASA spacecraft caught the whole thing on camera.


That is crazy, the size of the solar ejection!

It seems so calm to us, but the universe is really a VERY violent place…

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