ASTEROID 2012 TC4 BO LETEL MIMO ZEMLJE

12. oktobra ob 7h 42 min po našem času bo asteroid letel mimo Zemlje na višini cca 50 tisoč km, kar je za astronomske razmere zelo malo, posebej če vemo, da gre za asteroid, ki naredi en obhod okoli Sonca v 609 dneh in se tako v bližino Zemlje vrača pogosto ...

Zemlje tokrat ne bo zadel, a možnost, da jo zadane 13. oktobra 2075, je še vedno velika ...



On October 12, 2017 at 5:42 UT, the asteroid will pass 0.0003352 AU (50,150 km; 31,160 mi) from Earth.[6] Observations between July and October have reduced the uncertainty region to about ±15 km.[7] The Sentry Risk Table and NEODyS show no chance of an Earth impact before October 13, 2075.[8][9] The asteroid rates -4.34 on the Palermo scale, with a 1 in 1,700 chance of impact over the next hundred years.[8]

A/2017 U1 - MEDZVEZDNI POPOTNIK

Astronomi teleskopa Pan-STARRS 1 s Hawajev so 19. oktobra prvič opazili nenavaden vesoljski predmet, ki je kod kaže, le "obiskal" naš sončni sistem. Gre za prvi opazovani objekt (komet ali asteroid) v zgodovini astronomije, ki ni stalen član našega osončja. A/2017 U1 je okoli 400 m velik in se giblje s super-hitrostjo kar 25,5 km na sekundo.



A visitor from interstellar space has likely been spotted in our solar system for the first time ever. The object, known as A/2017 U1, was detected last week by researchers using the Pan-STARRS 1 telescope in Hawaii. "We have been waiting for this day for decades," Paul Chodas, manager of the Center for Near-Earth Object Studies at the NASA's Jet Propulsion Laboratory in Pasadena, California, said in a statement. [Solar System Explained from the Inside Out (Infographic)] "It's long been theorized that such objects exist — asteroids or comets moving around between the stars and occasionally passing through our solar system — but this is the first such detection."

Več si lahko preberete na tem linku:
https://www.space.com/38580-interstellar-object-spotted-comet-asteroid-mystery.html

KOMET 96P/MACHHOLZ

Kratko-periodični komet z obhodno dobo 5,25 let je prav zdaj, ko je najbližje Soncu v zornem polju SOHO.



(UPDATED MOVIE) UNUSUAL COMET DIVES TOWARD THE SUN: Deep inside the orbit of Mercury, unusual comet 96P/Machholz is diving toward the sun today. At closest approach on Oct. 27th, it will swoop through the sun's gravity well just 0.12 AU from the star. Coronagraphs onboard the orbiting Solar and Heliospheric Observatory (SOHO) are monitoring the flyby.

Comet 96P does this every 5.24 years. It is a short period comet that experiences frequent blasts of solar heat. During a similar flyby in 2002, SOHO observed two tiny fragments ahead of the main nucleus. This means the comet may be actively evolving, and it could shed more pieces during this week's dive.

This is no ordinary comet. Its orbit connects it with a bewildering menagerie of other things in the solar system: Comet 96P is linked to as many as three meteor showers (the Daytime Arietids, Southern Delta Aquarids, and Quadrantids), two families of sungrazing comets, and an asteroid (2003 EH1). Millennia ago, the whole ensemble was probably part of the same parent object that exploded or fell apart.

Does this comet even belong to our own solar system? A scientific study published in 2008 found that 96P/Machholz has "extremely anomalous molecular abundances." Chemically speaking, it's not like other comets that have been studied in the same way. Perhaps it comes from another star system, flung into space and later captured by our own sun's gravity.

96P/Machholz will remain visible in SOHO coronagraphs from now until Oct. 30th. Check back often for updated images.

MODRA AURORA ? - NE ! RUSKA RAKETA !

Na Spaceweather.com prihaja vse več poročil o Ruski vojaški aktivnosti, kateri so priča astronomi s severa, ki pošiljajo slike "modrih auror" ...

RUSSIAN WAR GAMES SPARK 'BLUE AURORAS': On Dec. 9, 2009, sky watchers in arctic Norway witnessed an incredible spiral of blue light forming a cone in the night sky. "We are used to seeing lots of auroras here in Norway, but this was different," recalls Nick Banbury of Harstad who saw the display on his way to work "between 7:50 and 8:00 a.m. local time." Jan Petter Jorgensen took this photo:

Days later, the Russian Defense Ministry confirmed the launch and subsequent failure of a missile--a Bulava ICBM launched from a Russian submarine in the White Sea. The rocket motor spinning out of control created the spiral pattern.

Almost 8 years later, on Oct. 26, 2017, the same blue color reappeared. This time, however, it came in the form of an expanding sphere. Alexey Yakovlev photographed the magnificent cloud from Strezhevoy, Russia:

In fact, it was war games again. On Oct. 26th, the Russian military staged a nuclear battle drill and test-launched a number of ballistic missiles from land, sea and air. The instigating missile may have been a Topol ICBM reportedly launched from the Plesetsk space center 800 km north of Moscow toward the Kura test range in Kamchatka. The flight path is about right for a sighting by Yakovlev. Moreover, when Russia test-launched the same type of missile in Sept. 2017, some sky watchers reported unusual clouds then, too ...