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C/2017 T2 (PANSTARRS)

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#26 Galaxy_Mike

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Posted 23 January 2020 - 09:07 PM

Not particularly easy from my little dob. I think conditions were actually excellent for a while, but clouds around, so not sure. Not too bad at 60x, 2mm exit pupil on my 4.5. A bit difficult at 30x, although I didn't get properly dark adapted, or the scope cooled down.

Planned on maybe giving it another go but might be too hazy. Green lp

#27 ButterFly

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Posted 23 January 2020 - 10:45 PM

It's developing rather nicely.  It fits in the field of view with Double Cluster on the SW120ED with a 21 Ethos in my Bortle 4-5 backyard.  I need the 13 to start seeing any coma detail.  It should get a little closer the next day or two.  It's a very pretty site even without a big tail.



#28 Zorbathegeek

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Posted 23 January 2020 - 11:19 PM

It's developing rather nicely.  It fits in the field of view with Double Cluster on the SW120ED with a 21 Ethos in my Bortle 4-5 backyard.  I need the 13 to start seeing any coma detail.  It should get a little closer the next day or two.  It's a very pretty site even without a big tail.

It's got an interesting orbit. It's currently getting further away from us but closer to the sun, reaching perihelion on 4th May, and therefore brightening from the sun's energy. It will start getting closer to Earth again starting in the 3rd week of May. It passed it's nearest approach to Earth at the end of December.



#29 aa6ww

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Posted 23 January 2020 - 11:24 PM

Its going to be hanging out between Cassiopeia and Perseus for a month or so. Thats perfectly placed for my back yard observing. If it ever clears up enough. Id like to check it out again. 

The pictures posted here are awesome. Thanks for posting, to all of you.

 

...Ralph 



#30 Redbetter

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Posted 24 January 2020 - 05:06 AM

I decided I would target this one just before I left for the dark sky site on Wed. night.  I looked at the ephemeris and jotted down coordinates, with only a faint idea of its general vicinity.  When I plotted it on the atlas I realized it was right next to the Double Cluster.  Talk about an easy star hop and ID--Telrad point and shoot.  Saw it immediately in the ST80 at ~17x.  Switching to the 20" at 156x it was well framed and most definitely cometary. 

 

I was seeing some indications of a broader fan shape, but now that I check images, perhaps the broader fan was imaginary.  I can only go by the impression I recorded at the time.


Edited by Redbetter, 24 January 2020 - 03:23 PM.

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#31 johnpd

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Posted 24 January 2020 - 05:50 AM

I caught it Thursday evening using a 127mm refractor. Not very impressive at 70x. Hopefully it will get better in the coming months, but if it does not get closer to us I guess it won't. Right now it is easy to find due to its proximity to the Double Cluster.

 

JohnD



#32 Mike Lynch

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Posted 24 January 2020 - 11:23 AM

Got out for observing on Tuesday night with a friend and looked for this comet while it was still very high in the sky.

 

Looked much like the view we had two nights before Christmas: Easy to find in my 10.1" Coulter, coma and short tail visible, and a nucleus seen with averted vision.

 

Hardly spectacular, but it's the best comet in our sky now...and looks like it will glide close to the Double Cluster during the next few nights....

 

Mike

Frankfort, Ky.



#33 ButterFly

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Posted 24 January 2020 - 02:26 PM

It's got an interesting orbit. It's currently getting further away from us but closer to the sun, reaching perihelion on 4th May, and therefore brightening from the sun's energy. It will start getting closer to Earth again starting in the 3rd week of May. It passed it's nearest approach to Earth at the end of December.

Sorry.  I meant closer to the Double Cluster.



#34 Zorbathegeek

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Posted 24 January 2020 - 04:34 PM

Sorry.  I meant closer to the Double Cluster.

I should've realised that. Clear skies, Ray.



#35 Stardust Dave

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Posted 24 January 2020 - 07:41 PM

"and a nucleus seen with averted vision."   I did not notice that at all.

 

What LP zone was that observation from and the conditions (and magnification)?


Edited by Stardust Dave, 24 January 2020 - 07:42 PM.


#36 Mike Lynch

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Posted 24 January 2020 - 08:46 PM

We were in a Bortle 4 zone, according to the Clear Sky Chart page, in Taylorsville Lake State Park, Ky.

 

Don't recall the magnification,  but I was likely using a 17.5mm Morpheus eyepiece, which would have given about 66 power magnification. Or I might have been using the Morpheus 9 mm.

 

The conditions were very clear, and seeing was above average. 

 

I was looking for the nucleus because we saw it on our previous observing session in December.

 

Mike

Frankfort, Ky.


Edited by Mike Lynch, 24 January 2020 - 10:41 PM.

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#37 Galaxy_Mike

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Posted 24 January 2020 - 11:05 PM

It was close to a fairly bright star tonight, and I couldn't find it at 30x. Looked at the chart again, bumped up the magnification to 60x, and got it. 4.5" Green lp but streetlights near. Excellent conditions

 

Nearby ngc 1023 was easier.



#38 Dave Mitsky

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Posted 26 January 2020 - 12:28 AM

I observed Comet C/2017 T2 (PanSTARRS) on Saturday night from the orange-zone ASH Naylor Observatory using a 12.5" f/6.5 Cave Newtonian at 103 and 138x and a 17" f/15 classical Cassegrain at 116, 170, 216, and 259x.  I preferred the view at 216x. 

 

The transparency wasn't the best but even so the comet was surprisingly faint and diffuse.  It was difficult to see even with the 17".  I wasn't able to detect it with the club's 8" f/6 Hardin Dob at 60 and 80x.  My views back in December were better.


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#39 rbarbera

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Posted 26 January 2020 - 06:30 PM

Today caught it near double cluster. 15x180” Canon 40D at ISO800. TV85 on an SW AZ-GTi mount in eq mode. Guided with a generic 50/190 guidescope and an ASI120MM

97dcf993577332250e17897cf9f72b59.jpg

Edited by rbarbera, 26 January 2020 - 06:30 PM.

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#40 Dave Mitsky

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Posted 26 January 2020 - 11:05 PM

Thanks for posting that image, rbarbera!


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#41 Redbetter

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Posted 27 January 2020 - 02:46 AM

Weather forecast was dicey for the dark site at altitude tonight so I stayed home where it was clear and transparent, ~19.1 MPSAS in this red/orange transition zone.  I decided to see if I could detect the comet with my ES 127 f/15 Mak.  I recently added a 2" Astro-Tech SCT diagonal to it which increases the focal length slightly.  With a 55 Plossl it goes from 1900mm to about 2080mm, for ~38x. 

 

I was having trouble detecting the comet on the edge of the double cluster, even checking the ephemeris position vs. Stellarium.  So having noticed how green the comet was in the above and other images, I put on a 2" Lumicon Comet filter.  After a bit of study I could definitely see the comet as a faint haze north of an E/W bumpy line of several 10/11 mag stars with another 11mag north of the comet.  Panning around and tapping the tube confirmed the impression was real.  Not much to look at in town this way, but it was nice to be able to have a firm detection with the small scope.

 

That comet filter has helped for detection of a number of comets I have observed in town. 


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#42 Miranda2525

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Posted 28 January 2020 - 09:44 AM

The images and gif's in here are amazing !!!  Nicely done !!! jawdrop.gif



#43 rkelley8493

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Posted 28 January 2020 - 11:23 AM

I thought it was a nebula at first, but it didn't belong in this area. When I used a UHC filter to see if that's what it was, it made it disappear. Then I thought it might be a small galaxy, but once again, it didn't belong in this area. It wasn't until later that night that I had an "ah, ha!" moment and realized it was this comet. I'm going to break out my big gun SCT next clear night and spend more time viewing this little gem.

 

Oh yea, my skies are around Bortle 5.  


Edited by rkelley8493, 28 January 2020 - 11:25 AM.


#44 jeffmac

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Posted 28 January 2020 - 11:30 PM

I observed this comet with my 10" dob from my dark site tonight. It was small and pretty faint but obvious in the eyepiece and was easily located.



#45 Dave Mitsky

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Posted 31 January 2020 - 04:13 PM

On Wednesday night, I observed Comet C/2017 T2 (PanSTARRS) again with the 17" classical Cassegrain at the Astronomical Society of Harrisburg's Naylor Observatory.  The transparency was a bit better than on Saturday night.  The comet was rather easy to find, since it was near one of the bright stars in the arc that leads from NGC 869 to Stock 2 (the Muscle Man Cluster).  I employed magnifications of 116, 145, 170, 216, and 259x, with 259x providing the best view.



#46 Dave Mitsky

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Posted 01 February 2020 - 02:33 AM

In case anyone hasn't seen it, the APOD for January 30th is of the comet and the Double Cluster.

 

https://apod.nasa.go...4WMLM5W3Z3lFRB0


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#47 sunnyday

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Posted 01 February 2020 - 04:16 PM

all simply magnificent



#48 waso29

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Posted 22 February 2020 - 12:59 PM

spotted the little smudge thru friend's tec140 last nite from lowell, IN.

 

took a snap with dslr 250mm 45sec iso800

 

Attached Thumbnails

  • IMG_2709 chart c2017 t2 panstarrs.jpg
  • DSC_3868 crop c2017 t2 panstarrs  fs60cb f4.2 sxp @conway.JPG

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