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PostPosted: Wed Oct 17, 2018 5:56 pm 
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Joined: Tue Sep 27, 2011 7:33 pm
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https://m.facebook.com/story.php?story_ ... 3783315006

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Rosemarie Spedaliere Treasurer/Night Sky Coordinator


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PostPosted: Wed Oct 24, 2018 7:32 pm 
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Joined: Sun Nov 13, 2011 4:39 pm
Posts: 2010
Location: Gilford Park
Bumping this with information regarding Comet Lovejoy C/2017 E4

https://theskylive.com/c2017e4-info

Live and up-to-date detailso n Comet Lovejoy

https://theskylive.com/c2017e4-tracker

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Interdum taurus est victor

Chris S.


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PostPosted: Thu Oct 25, 2018 11:19 am 
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Joined: Thu Oct 13, 2011 12:53 pm
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Location: Maple Shade, NJ
I wonder what prompted citing C/2017 E4 (Lovejoy)? Currently, for an observer in New Jersey, it transits around 3 am at 7.5 deg altitude in Caelum. If that wasn’t difficult enough, the “The Live Sky” has it around magnitude 45, while SkyTools is a bit more generous, putting it about magnitude 25. In any case, virtually no chance for any of us to see it now.

I did spot E4 back in April of 2017 when it was in the magnitude 8-9 range, see my web page at http://sjastro.org/older-27.htm, scroll down a little to the “Binocular Comet Foursome,” and then a little further to April 2.

Back to the thread topic, the window of opportunity to spot comet 46P/Wirtanen opens again on November 1, 2018 (the night of October 31), when the comet transits about 12:15 am EDT and the last-quarter moon rises about 12:30 am. The moon then rises 60+ minutes later on each of the next few mornings and the comet transits a few minutes earlier. I’m hoping for a clear morning during the first days of November so I can get out to the Pines for a look with the 12.5-inch scope (pictured below). 46P should be around magnitude 9 then, perhaps a little brighter.

46P reaches its most southerly declination around midnight November 3/4, transiting about 17 deg altitude in the first days of November, then starts heading north into a more favorable viewing position for those of us in the northern hemisphere.

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