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C/2017 T2 (PANSTARRS) and C/2019 Y4 (ATLAS). Visual sightings

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#1 aa6ww

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Posted 30 March 2020 - 01:56 AM

I've managed to observe both C/2017 T2 (PANSTARRS) and C/2019 Y4 (ATLAS) on two seperate occasions. C/2017 T2 (PANSTARRS) was at a dark sky location and was sporting a small tail using my C8. 
Comet C/2019 Y4 (ATLAS) I saw this weekend using my C6 in my back yard when the clouds move away. Both have very different looks.
 
Are people following these two comets visually? Also, has anyone used a swan filter on either comet. I have both 1.25" and 2" swan filters but I keep forgetting to use them. Do they help?
 
How dark are your skies, and what are you using to observe these comets with?
 
...Ralph in Calif

Edited by aa6ww, 30 March 2020 - 02:05 PM.

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#2 Bean614

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Posted 30 March 2020 - 04:15 AM

I have been following both, and for quite a while.  The Y4 Atlas seems all the rage, but as I read the comments, it seems to me that folks don't even KNOW about these 2.  Thank goodness for SkySafari!!!!



#3 j.gardavsky

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Posted 30 March 2020 - 05:08 AM

I have seen the T2 in Cassiopeia only once, and the Y4 in UMa is now glowing green through the telescope,

and still just grey through my 15x85 binoculars.

Still did not try the Y1.

 

Clear skies,

JG


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#4 aa6ww

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Posted 30 March 2020 - 02:07 PM

Sorry, I had to change the title from C/2019 Y1 (ATLAS) to C/2019 Y4 (ATLAS).

Sorry for the confusion. I think regarding C/2019 Y1 (ATLAS), It dips below the Horizon over here just as the sun sets, here in Northern Calif.

...Ralph

#5 j.gardavsky

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Posted 30 March 2020 - 02:32 PM

C/2019 Y4 (ATLAS)

 

Tonight on the 30th March, 2020, at 21:15 local time, in a break between the clouds:

Hand held 15x60 Docter Nobilem Porro binoculars - a bright fuzzy star

 

As my eyes have not been completely dark adapted but just relaxed, that what I have seen has been just the core of the comet.

Other checked out objects: M81 and M82 galaxies comfortably bright

 

So, this comet becomes visible also for the smaller binoculars.

 

Best,

JG


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#6 Don H

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Posted 31 March 2020 - 03:03 PM

I saw T2 PANSTARRS and Y4 ATLAS both last Friday night using a 4.5" f/4 reflector under my relatively dark sky (green/yellow zone). I have been following T2 for a while and as it nears the horizon, it has lost some of its luster, IMHO. Conversely, Y4 continues to improve in size and brightness. I saw Y4 again on Sunday night in my 10" f/6.3, but I had to wait for the moon to depart to detect it. Once the moon set, it was pretty easy to locate. I was surprised how much it had moved since Friday. After I had it in the main scope, I could tell where it was in the 8x50 finder. But I doubt I would have seen it in the 50mm objective otherwise, at least at 8x. There was a nice size green coma and small bright core, but the tail was fleeting at high powers, and any glimpse I had may have been due to images I have seen recently and wishful thinking. I believe the moon will hamper further observation of Y4 until it departs the evening sky later next week...



#7 David Knisely

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Posted 31 March 2020 - 04:27 PM

I saw ATLAS a couple of nights ago in my 12x70's from my patio (ZLM 5.2).  It was probably around 8th magnitude or so, with a very diffuse coma and small slightly brighter core, but no signs of a tail.  M81 was far more impressive in my binos at that time.  Clear skies to you.


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#8 djeber2

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Posted 16 April 2020 - 06:11 PM

Observed PANSTARRS last night from the suburbs with my 102mm  ED refractor at 55x.   Excellent transparency.   




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