[SKRIVA] Runt kl 13 passerar asteroiden
- From: Ahrvid Engholm <ahrvid@xxxxxxxxxxx>
- To: <skriva@xxxxxxxxxxxxx>
- Date: Mon, 27 Jun 2011 08:01:30 +0200
Asteroiden MD2011 (stor som ett hus, 8-18 meter ungefär) sägs passera kring 12
"londontid". Om det är inkl sommartid bör det motsvara kl 13 stockholmstid:
http://uk.io9.com/5815591/incoming-house+sized-asteroid-will-skim-past-earth-on-monday
"On its current pass, 2011 MD won't hit Earth's atmosphere. It will come inside
the orbits of many communications and spy satellites, but will still be some
12,500 kilometres away from the International Space Station. However,
Spaceweather.com reports that the encounter is close for Earth's gravity to
"sharply alter the asteroid's trajectory".
Discoveries of small near-Earth asteroids have soared since the year 2000 with
the growth of automated sky surveys following in the footsteps of LINEAR, which
found its first asteroid in 1996.
As of June, stats compiled by NASA's Jet Propulsion Laboratory in Pasadena,
California, show more than 8000 known asteroids in near-Earth orbits. More than
7000 of these are smaller than a kilometre across and almost 1000 are smaller
than 30 metres.
Asteroid counts are expected to soar further as the Pan-STARRS survey comes on
line; so far, only one of its four planned 1.8-metre telescopes has been
completed, and it has only been fully operational for a year. ...
The logistics for seeing the moment of closest approach are extraordinarily
poor. It takes place in broad daylight not far off the coast of Antarctica,
almost 2000 miles south-southwest of South Africa
However, backyard astronomers with telescopes in New Zealand and Australia will
be able to watch it in the night sky until half an hour earlier.
The Minor Planet Center has calculated the asteroid's orbit at 1.09 years. It's
due to pay us another visit in 2022, but that's not rated as a major impact
threat then either."
--Ahrvid
Ps. Och apropå rymdskräp, junka gärna Pseoudynm-Putte under div påhittade namn.
Markera mail och flytta till Skräppost, så lär sig systemet att hans infantila
påhitt skall dit där det hör hemma. Bra va!
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