TheSkySearchers

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!!!

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

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,

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".

Nice pic! Did you use the "comet" setting in DSS?

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!

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

Starless version.

Great capture! Well done!

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!!
Tom

A really nice image Brent, congratulations on getting it

Nice job of capture and processing. Very impressive.

Steve