Comet C/2019 Y4

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OhNo
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Comet C/2019 Y4

#1

Post by OhNo »

Quick capture of C/2019 Y4 (5 120 second exposures) With a QHY163C (Gain-137 Offset-50) in a 8" SW Quattro. The first image was stacked in APP. The second image is a stack of the same data in DSS. A very quick trip through PI and here is what I ended up with. I will repro the image when I get over this wicked chest cold!!!
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Graeme1858
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#2

Post by Graeme1858 »

Nice image Oh No. The comet looks good framed against the brighter star.

I'm hoping to get out to have a go at the Atlas soon. How long do you think a guided image can get to before the comet starts to blur?

Hope you cold clears up.

Regards

Graeme
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Thefatkitty
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Post by Thefatkitty »

Nicely done Brent, good for you! Hoping to get that as well if the darn sky ever clears...

Hope your cold goes away too!

All the best,
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OhNo
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#4

Post by OhNo »

Graeme1858 wrote:
Fri Mar 27, 2020 8:33 am
Nice image Oh No. The comet looks good framed against the brighter star.

I'm hoping to get out to have a go at the Atlas soon. How long do you think a guided image can get to before the comet starts to blur?

Hope you cold clears up.

Regards

Graeme
That is a good question. One issue I am having is I don't have the proper adapter to be able to use my coma corrector. (the 8" SW Quattro is a imaging Newtonian scope, not using a CC is a bad idea!) If you click on the image (blow it up to full view) you'll notice the stars are beginning to trail even at the center of the image. So my guess is that a little less than 2 minutes. I've captured 5 other Comets and Asteroids, all of which would have been trailed by inches with a 2 minute exposure. This one is moving but either it's distance and/or it's velocity is significantly further or slower than anything else I've imaged.

Framing of this one was a complete fluke. Between not feeling great, the evenings forecast and the short term forecast it was a case of "poke-and-hope".
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Post by Larry 1969 »

Nice pic! Did you use the "comet" setting in DSS?
For visual:
10" Skywatcher collapsible goto dob, various EP's and a Celestron StarSense auto align.

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OhNo
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#6

Post by OhNo »

Larry 1969 wrote:
Fri Mar 27, 2020 2:05 pm
Nice pic! Did you use the "comet" setting in DSS?
No I didn't. I've never used that setting, and I didn't think the data (especially without the CC in) was worth messin' with my settings! :oops:
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Post by Larry 1969 »

I see... I was just curious how it would work...
You know you can "save" your current DSS settings and then restore them right?
I'm always afraid to mess with settings once I have something that works too...

Larry
For visual:
10" Skywatcher collapsible goto dob, various EP's and a Celestron StarSense auto align.

For imaging:
Orion 8" astrograph 800mm @ F3.9
Eq6-R Pro controlled by APT via EQmod with a refurbished Windows 10 laptop.
Explore Scientific HR coma corrector
Full spectrum modded Canon T3i (APS-C size sensor)
OhNo
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#8

Post by OhNo »

Starless version.
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MariusD69
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#9

Post by MariusD69 »

Great capture! Well done!
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Post by Astrovetteman »

Great Job on the Comet!! I'm trying to image it, right now, and it's supposed to be mag 14.8 but in a 180s exposure you can easily see the coma and a tail and the nucleus is very bright!! Can't wait to see what comes out....if these winds die down!!
Great Image!!
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#11

Post by Lady Fraktor »

A really nice image Brent, congratulations on getting it :)
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Post by STEVE333 »

Nice job of capture and processing. Very impressive.

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