NGC 1156 is a

dwarf Dwarf or dwarves may refer to: Common uses *Dwarf (folklore), a being from Germanic mythology and folklore * Dwarf, a person or animal with dwarfism Arts, entertainment, and media Fictional entities * Dwarf (''Dungeons & Dragons''), a humanoid ...

irregular

galaxy A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek ' (), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System. ...

in the

Aries constellation Aries is one of the constellations of the zodiac. It is located in the Northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram. Its old astronomical symbol is (♈︎). It is one of th ...

of the type . It is considered a ''Magellanic''-type irregular. The galaxy has a larger than average core, and contains zones of contra-rotating gas. The counter-rotation is thought to be the result of tidal interactions with another gas rich galaxy some time in the past. It has a H II nucleus. The AGES survey has discovered a candidate dark galaxy close to NGC 1156, one of only a few so far found.

References

External links

*
Arecibo Survey Produces Dark Galaxy Candidate
(SpaceDaily) * http://www.astrophotos.net/pages/GALAXIES/NGC%201156.htm * http://www.jupiter-jp.net/~ike/English/description/N1156.htm * http://www.ursa.fi/~sirius/cgi-bin/rade.cgi?NGC1156 {{DEFAULTSORT:NGC 1156 Dwarf irregular galaxies Aries (constellation)

1156 Year 1156 ( MCLVI) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Levant * Spring – Raynald of Châtillon, prince of Antioch, makes an alliance with Thoros II (t ...

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