- Utah-Astronomy - mailman.xmission.com

Meteor damage in Russia
by Jay Eads 15 Feb '13

15 Feb '13

Here is the latest from NASA. Note that this is the largest impact since the 2008 Tunguska Event. "The Russia meteor is the largest reported since 1908, when a meteor hit Tunguska, Siberia. The meteor entered the atmosphere at about 40,000 mph (18 kilometers per second). The impact time was 7:20:26 p.m. PST, or 10:20:26 p.m. EST on Feb. 14 (3:20:26 UTC on Feb. 15), and the energy released by the impact was in the hundreds of kilotons. Based on the duration of the event, it was a very shallow entry. It was larger than the meteor over Indonesia on Oct. 8, 2009. Measurements are still coming in, and a more precise measure of the energy may be available later. The size of the object before hitting the atmosphere was about 49 feet (15 meters) and had a mass of about 7,000 tons. The meteor, which was about one-third the diameter of asteroid 2012 DA14, was brighter than the sun. Its trail was visible for about 30 seconds, so it was a grazing impact through the atmosphere." http://www.nasa.gov/mission_pages/asteroids/news/asteroid20130215.html Also the following link from Russia shows the hole in the reservoir and fragments on the ice around the hole. http://74.mvd.ru/news/item/845855/ Think I want to purchase a piece of this one since I can't get to Russia to find a fragment.

1 0

Meteor Damage in Russia
by jcarman6＠q.com 15 Feb '13

15 Feb '13

Shades of Tunguska! (just shades -not even close for size) Read the weather channel article - now I'm thankful for the close call. They had some serious nuclear and bioweapon facilities there. Had it been bigger... , had it exploded closer ...... Loved the joke, it was supposed to arrive December 21, but was delivered late by the Russian postal service lol Maybe if the Mayans were still a civilization ...... They're lucky they got off so lightly. I recall an article from Isaac Asimov about "city busters." Basically how big an object would have to be to destroy a city. Then he noted, there are a lot more cities now than a hundred years ago. (and the article was written probably 50 years ago)

2 1

Re: [Utah-astronomy] Rare Book Trip
by Craig Smith 15 Feb '13

15 Feb '13

Sounds spectacular, in some ways better than seeing the collection at the Huntington Library. On 2013-02-14 08:40, Joe Bauman wrote: > Dear fellow astro-fans, I've just posting a set of photos on both the SLAS Facebook site and my section of the SLAS gallery, showing views of a trip to the rare book section of Marriott Library, University of Utah, on Jan. 30. Thanks for taking a look and thanks to Patrick for arranging this visit. Although it wasn't an official SLAS excursion, nearly all of those present were SLASers, whom Patrick kindly allowed to accompany him. If you see any errors, please tell me immediately; also, I would like to hear any comments you have. > > For those not using Facebook, the SLAS gallery location of the album is: > > > http://www.slas.us/gallery2/main.php?g2_itemId=5517 > > -- Best wishes, Joe >

1 0

Meteor damage in Russia?
by Patrick Wiggins 15 Feb '13

15 Feb '13

Interesting to find out if there's any truth to it: http://www.foxnews.com/world/2013/02/15/meteorite-falls-in-russia-chelyabin… patrick

2 2

NASA to cover 2012 DA14's flyby
by Patrick Wiggins 15 Feb '13

15 Feb '13

http://www.jpl.nasa.gov/news/news.php?release=2013-059&rn=news.xml&rst=3693 Hopefully this time tomorrow we here in Utah will have eyes-on and/or detectors-on 2012 DA14. patrick

2 1

Fantastic meteor over Russia
by Thomas Sevcik 15 Feb '13

15 Feb '13

Get a load of this visitor that caused 500 or more injuries and damaged buildings in the Ural Mountains of Russia! http://www.bbc.co.uk/news/world-europe-21470205 http://youtu.be/1kvHl5Qcnzc Tom Sevcik

1 0

ISON this evening
by Patrick Wiggins 15 Feb '13

15 Feb '13

Unlike previous shots these were taken with ISON just west of the meridian. So the tail is pointing to the left. No processing. These are raw images with no flat or dark applied: http://users.wirelessbeehive.com/~paw/temp/C_2012_S1.2013FEB15.JPG patrick p.s. Just 20 hours to we get to see 2012 DA14 in Utah.

2 1

Guide Scope for Sale
by Chuck Hards 14 Feb '13

14 Feb '13

I just upgraded my guidescope, so I'm selling an *Orion 50mm Mini Guide Scope*. Only used once to test my autoguider, repackaged carefully. Exactly as sold by Orion and basically BNIB. I paid $99.99 plus shipping, I'll let it go for $75 cash and will deliver anywhere within the SL valley. Will ship at your cost. Pretty neat little guide scope and very compact if you want to keep the weight down on your set-up, always a good thing. See it here: http://www.telescope.com/Astrophotography/Astrophotography-Accessories/Orio… Contact me off list at this same email address if interested. Thanks!

1 1

What's that bright thing in the sky?
by Chuck Hards 14 Feb '13

14 Feb '13

A nice active solar disk today. Many prominences, some sunspots, and other solar activity. In H-a, there is a dark streak associated with the largest sunspot group. Lots of surface detail. The weather forecast is looking promising for the weekend. Take a peek if you can.

1 0

Halluciations
by D P Pierce 13 Feb '13

13 Feb '13

Kim, I' just a figment of your imagination. In fact, you are having a Deloytion! Deloy

1 0