File:Comet Lovejoy Visits La Silla.jpg

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English: An unusual type of tourist is seen visiting ESO’s La Silla Observatory in this stunning wide-angle photograph taken in January 2015. Captured by ESO Photo Ambassador Petr Horálek, Comet C/2014 Q2 (Lovejoy) appears to streak across the sky (centre left of the image), sneaking past the two telescopes below: ESO’s 3.6-metre telescope (left) and the Swedish-ESO Submillimetre Telescope (SEST).

Like most comets, Comet Lovejoy enjoys a long, elliptical and eccentric orbit around the Sun. It entered the inner Solar System for the first recorded time in 2014, and reached perihelion — its closest approach to the Sun — on 30 January 2015. The distance between the Earth and the Sun is defined as 1 astronomical unit (au), or just under 150 million kilometres; Comet Lovejoy came within 1.29 au of our star, placing it between the orbits of Earth and Mars (1.52 au).

This image displays the characteristic soft green glow of the comet, produced as molecules of carbon are heated by the Sun. A tail of material splays out behind the comet’s nucleus, crafted by gas and dust blown from the comet by the wind of charged particles streaming out from the Sun.

This comet is actually the fifth to be discovered by its namesake, Terry Lovejoy, an amateur astronomer based in Queensland, Australia. Lovejoy previously discovered comets C/2007 E2, C/2007 K5, C/2011 W3, and C/2013 R1.
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Source http://www.eso.org/public/images/potw1634a/
Author P. Horálek/ESO

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current16:34, 20 December 2023Thumbnail for version as of 16:34, 20 December 20235,161 × 3,441 (9.29 MB)C messier (talk | contribs)full size
11:08, 25 August 2016Thumbnail for version as of 11:08, 25 August 20161,280 × 853 (397 KB)Jmencisom (talk | contribs)User created page with UploadWizard

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