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Comet C/2018 W2 (Africano)

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#51 Stardust Dave

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Posted 02 October 2019 - 12:24 PM

Last nights view in 13" pale compared to last few weeks observations from home.

Had quite transparent sky last night ,early AM.  120X most of the session.

 

Nice to have a Comet pass by good reference stars for us star hoppers.

Amazing how far across the sky this has moved since last week.



#52 Special Ed

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Posted 03 October 2019 - 03:01 PM

I finally got to see Africano last night for the first time (my previous attempt a month ago was a failure) between 11:00 and 11:40 pm EDT (3 Oct 0300-0340 UT).  Seeing was good but transparency was only average to below average.  The Moon was down and my SQM-L reading was 21.4.  The comet was in Aquarius about 1.5 degrees N of phi Aqr.

 

In my 35cm SCT @ 71x and 163x the comet was not very impressive--a small, moderately condensed fuzzball.  Transparency might be better tonight and tomorrow night so I'll try again.  Also, the comet will be close to Neptune tonight.

 

m1= 9.0  DC= 3/  Dia= 4'


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#53 jhbanister

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Posted 03 October 2019 - 10:42 PM

I observed Africano for the first time last night (26 Sep) from fairly dark rural skies.  It was easy to spot in my 8” sct.  I called it “diffuse with a slightly brighter center.  No tail”.  I think it is noteworthy that we are among the first folks to see this “new” comet.

I observed Africano again on Tuesday (10/1) but this time with a 12”.  Despite the increase in aperture, it was smaller and weaker, although the center was bright.   Seems to be dimming.


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#54 Slartibartfast

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Posted 04 October 2019 - 03:01 PM

I'm going to try to look at this tonight.  Looks to be within 2.8 deg. of Neptune, too far apart to get in the same FOV, but it will be fun to observe the comet, then swing over and observe Neptune!



#55 Special Ed

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Posted 04 October 2019 - 08:19 PM

I looked at Comet Africano again last night (4 Oct. UT) and made this sketch.  Transparency was iffy but the comet appeared to have a slightly elongated coma.  I observed its movement to the SW over the course of the observation. 

 

The comet is about 0.55 AU from Earth at this time and will probably fade.  It's still in Aquarius and was nearby Neptune.  I observed Neptune at 71x.  It appeared bluish and disk-like.  I was unable to observe Africano and Neptune in the same field due to the small FOV of even my widest field ep.

 

C_2018_W2_Africano_composite_v1.jpg


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#56 Slartibartfast

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Posted 04 October 2019 - 09:45 PM

No luck for me.  Too much LP tonight, I'm afraid  Had a great view of Neptune in 5mm Nagler T6 (365X).  Special Ed, judging from your sketch, with a FOV of 29 arc-minutes, maybe I'm casting too wide a net.  I was trying with the 31mm Nagler at 1.3 deg. FOV, maybe I need to try again with higher power, tighter FOV (darker background).



#57 Slartibartfast

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Posted 04 October 2019 - 10:40 PM

Got it!  Switched to the Nagler 16mm T5 (114x, 0.7 TFoV) and I think it darkened the background enough to make out the little puff ball nestled in among 83 Aqr and 81 Aqr to form a little triangle.  Very cool!  cool.gif  


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#58 clearwaterdave

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Posted 04 October 2019 - 10:43 PM

I saw it tonight with my 10" dob with an ES 20/68 giving 60x w/1.1*fov.,It was faint.,almost galaxy like.,glad that I tried.,cheers.,




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