Astronomical objects discovered in 2013

smallest moon of Neptune

binary brown dwarf, third closest star system.

asteroid

galaxy filament and the largest known structure in the universe

comet

sub-brown dwarf located near Earth

distant galaxy

extrasolar free-floating planet

binary stellar system in the constellation Monoceros

nova in the constellation Delphinus

asteroid

311P/PanSTARRS, also known as P/2013 P5 (PanSTARRS), is an active asteroid and Encke-type comet discovered by Bryce T. Bolin using the Pan-STARRS telescope on 27 August 2013. Observations made by the Hubble Space Telescope revealed that it had six comet-like tails. The tails are suspected to be streams of material ejected by the asteroid as a result of a rubble pile asteroid spinning fast enough to remove material from it. This is similar to 331P/Gibbs, which was found to be a quickly-spinning rubble pile as well.

long-period comet

Trans-Neptunian object

EGS-zs8-1 is a high-redshift Lyman-break galaxy found at the northern constellation of Boötes. In May 2015, EGS-zs8-1 had the highest spectroscopic redshift of any known galaxy, meaning EGS-zs8-1 was the most distant and the oldest galaxy observed. In July 2015, EGS-zs8-1 was surpassed by EGSY8p7 (EGSY-2008532660).

ring system around the minor planet Chariklo

nova in the constellation Centaurus

asteroid

galaxy

transneptunian object

Oort cloud comet

M60-UCD1 is an ultracompact dwarf galaxy. It is 49 million light years from Earth, close to Messier 60 (M60, NGC 4649) in the Virgo Cluster. Half of its stellar mass is in the central sphere 160 light years in diameter.

WT1190F (9U01FF6, UDA34A3, or UW8551D) was a small temporary satellite of Earth that impacted Earth on 13 November 2015 at 06:18:21.7 (± 0.1 seconds) UTC. It is thought to have been space debris from the trans-lunar injection stage of the 1998 Lunar Prospector mission. It was first discovered on 18 February 2013 by the Catalina Sky Survey. It was then lost, and reacquired on 29 November 2013. It was again discovered on 3 October 2015 by astronomer Rose Garcia with the Catalina Sky Survey 60-inch telescope, and the object was soon identified to be the same as the two objects previously sig

trans-Neptunian object

star

trans-Neptunian object

trans-Neptunian object

asteroid

asteroid

gamma-ray burst

asteroid

asteroid

asteroid

asteroid

near earth asteroid

the first discovered magnetar, orbiting the black hole Sagittarius A*, in the center of the Milky Way

Solar System comet

asteroid

star

asteroid

asteroid

disintegrated active main-belt asteroid

asteroid

trans-Neptunian object

asteroid

galaxy

asteroid

asteroid