December 2018 - Utah-Astronomy - mailman.xmission.com

Satelite Flare
by Jamie Bradley 22 Dec '18

22 Dec '18

Just saw a unusual satelite flare just south of Cassiopeia. It was a bright red flare. My heavens above app said it was an Envisat Satelite. I've just never seen a bright red flare. Jamie _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy(a)mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".

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Re: [Utah-astronomy] Utah-Astronomy Digest, Vol 190, Issue 4
by RON VANDERHULE 12 Dec '18

12 Dec '18

Debbie, are there good areas to view from at Demmeron? Like maybe camping with a trailer? Ron. Sent via the Samsung Galaxy Note8, an AT&T 4G LTE smartphone -------- Original message -------- From: utah-astronomy-request(a)mailman.xmission.com Date: 12/10/18 12:00 PM (GMT-07:00) To: utah-astronomy(a)mailman.xmission.com Subject: Utah-Astronomy Digest, Vol 190, Issue 4 Send Utah-Astronomy mailing list submissions to utah-astronomy(a)mailman.xmission.com To subscribe or unsubscribe via the World Wide Web, visit https://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy or, via email, send a message with subject or body 'help' to utah-astronomy-request(a)mailman.xmission.com You can reach the person managing the list at utah-astronomy-owner(a)mailman.xmission.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Utah-Astronomy digest..." Today's Topics: 1. Re: Comet 46P Wirtanen 280 sec. exp., 3X3, 81mm aperture (Debbie Whitaker) ---------------------------------------------------------------------- Message: 1 Date: Mon, 10 Dec 2018 09:23:18 -0700 From: Debbie Whitaker <astrodeb777(a)gmail.com> To: Dave Gary <davegary(a)me.com>, Utah Astronomy <utah-astronomy(a)mailman.xmission.com> Subject: Re: [Utah-astronomy] Comet 46P Wirtanen 280 sec. exp., 3X3, 81mm aperture Message-ID: <CALhz0a3ieFg-10QSYJDbwOjo_o0qRrV26UtEZ3iuiFFX01TD4Q(a)mail.gmail.com> Content-Type: text/plain; charset="UTF-8" I saw it Saturday night through my 120mm f/7.5 refractor. It was big and bright through my 22mm Panoptic eyepiece. I even saw a hint of a tail. I was up at Dammeron Valley and it was dark out there. The only problem is that now I and a few club members want to move out there. Got a lovely view of the Orion Nebula, M45, M38, M37, and M35. Also looked at M33 and the bright galaxy NGC 2403. Debbie On Sun, Dec 9, 2018, 9:04 AM Dave Gary via Utah-Astronomy < utah-astronomy(a)mailman.xmission.com wrote: > I toook this quick exposure of Comet 46P Wirtanen on 2 December 2018 from > St. George, Utah. > > > > > https://www.flickr.com/photos/78046474@N06/32300240198/in/dateposted-public/ > < > https://www.flickr.com/photos/78046474@N06/32300240198/in/dateposted-public/ > > > _______________________________________________ > Utah-Astronomy mailing list > http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > > Send messages to the list to > Utah-Astronomy(a)mailman.xmission.com > > The Utah-Astronomy mailing list is not affiliated with any astronomy club. > > To unsubscribe go to: > http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > Then enter your email address in the space provided and click on > "Unsubscribe or edit options". > ------------------------------ Subject: Digest Footer _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php ------------------------------ End of Utah-Astronomy Digest, Vol 190, Issue 4 **********************************************

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Attachments to the list
by chuck.hards 11 Dec '18

11 Dec '18

Everyone, just a reminder that attachments are not permitted on Utah-astronomy posts, including image files. This is due to file size restrictions. Please post a link to your images at a host site. Thanks! Your U-A Admin team Sent from my Verizon, Samsung Galaxy smartphone

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Re: [Utah-astronomy] Last night's lecture
by Joe Bauman 11 Dec '18

11 Dec '18

Brent, speaking of the ISS, I have wondered if it could be put into an orbit that continuously cruised between Earth and Mars. When it swung by Mars it could drop off and retrieved crews. I don't see how the radiation would be any worse than the ISS crews are already exposed to. ------------------------------ On Wed, Feb 25, 2015 8:18 AM MST Brent Watson via Utah-Astronomy wrote: >I attended the lecture last night on trajectories. It was really a good, stimulating talk. Thanks for passing the word along. >There were some interesting side comments made about our launch capabilities and the Mars One effort. Mr. Adamo was not at all enthusiastic about the Mars One effort. His opinion is that the effort is doomed because there is not really a way to assure that folks going there would be safe - primarily from radiation. He has done some work with a former flight surgeon on designing a spacecraft to go to Mars. Their result is that in order to get sufficient shielding (using a water jacket), the spacecraft's mass would be around 380 metric tons. That is for a small crew, probably only about 5 members. For a point of comparison, the ISS mass is 400 metric tons. He made the comment that an astronaut who made this trip could only go to space once in this craft, and then he would be at the limit of radiation exposure for his life. The NASA limit is an increased risk of developing cancer of 5%. >That brings us to our current launch capability. Our latest heavy lift rocket - the one we are currently developing - will have the capability to lift 130 metric tons to a very low earth orbit. So low, in fact, that it would burn up at perigee. The Apollo 17 Saturn 5 rocket lifted 140 metric tons into earth orbit -- higher than the new rocket will go. (I am sorry, but my mind will not allow me to recall the name of our currently being designed rocket.) Recall that it took several dozen shuttle launches to assemble the ISS. The Mars One vehicle would require either a hugely more massive launch rocket or a similar effort to build the craft. >As I mentioned, it was a very intellectually stimulating lecture and did involve several ordinary differential equations. They were nicely explained in English by Mr. Adamo. This was the first time I have seen some real math put to Kepler's laws. There were many charts showing what it takes to leave the earth and go to the moon or Mars. It was a very well done lecture. >The above is my recollection of the lecture, and may not actually represent the opinions of Mr. Adamo. It is only my interpretation of what he said. He knows his stuff, that is apparent. Thanks Patrick and Dr. Sohl for passing the word along. >_______________________________________________ >Utah-Astronomy mailing list >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > >Send messages to the list to >Utah-Astronomy(a)mailman.xmission.com > >The Utah-Astronomy mailing list is not affiliated with any astronomy club. > >To unsubscribe go to: >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy >Then enter your email address in the space provided and click on "Unsubscribe or edit options".

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Comet 46P Wirtanen 280 sec. exp., 3X3, 81mm aperture
by Dave Gary 10 Dec '18

10 Dec '18

I toook this quick exposure of Comet 46P Wirtanen on 2 December 2018 from St. George, Utah. > https://www.flickr.com/photos/78046474@N06/32300240198/in/dateposted-public/ <https://www.flickr.com/photos/78046474@N06/32300240198/in/dateposted-public/>

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The Verge: How a telescope forum feud ended with prison time
by Daniel Holmes 10 Dec '18

10 Dec '18

I am not a regular on Cloudy Nights, so I had no idea about this—Dan — How a telescope forum feud ended with prison time The Verge Even the victim says the sentence was too harsh Read the full story Shared from Apple News Sent from my iPad. Fewer misspellings, more errors.

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Comet
by Joe Bauman 09 Dec '18

09 Dec '18

Views of the comet and description. https://the-nightly-news.com/blog/blog-70-a-beautiful-green-comet Sent from my iPhone

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