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Antlia
From Wikipedia, the free encyclopedia
 Click for larger image |
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| Abbreviation: | Ant |
| Genitive: | Antliae |
| Symbology: | the air pump |
| Right ascension: | 10 h |
| Declination: | −30° |
| Area: | 239 sq. deg. (62nd) |
| Main stars: | 3 |
| Bayer/Flamsteed stars: | |
| Stars with known planets: | 0+0+1=1 |
| Bright stars: | 0 |
| Nearby stars: | 0 |
| Brightest star: | α Ant (4.25m) |
| Nearest star: | ( ly) |
| Messier objects: | 0 |
| Meteor showers: | None |
| Bordering constellations: | Hydra Pyxis Vela Centaurus |
| Visible at latitudes between +45° and −90° Best visible at 21:00 (9 p.m.) during the month of April |
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Antlia (IPA: /ˈantliə/, Latin: pump) is a relatively new constellation as it was only created in the 18th century, being too faint to be acknowledged by the ancient Greeks. The IAU adopted it as one of the 88 modern constellations. Beginning at the north, Antlia is surrounded by the sea snake Hydra, the compass Pyxis, the sails (Vela) of the mythological ship Argo and finally the centaur Centaurus.
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Antlia is a faint constellation void of bright stars. The brightest star is α Antliae, a magnitude 4.25m orange giant.
- NGC 2997: Spiral galaxy of type Sc which is inclined 45° to our line of sight.
- NGC 3132: Planetary nebula, also called Eight-burst Nebula or Southern Ring Nebula. At its heart is a binary star system.
- Antlia Dwarf: This 14.8m dwarf spheroidal galaxy belongs to our Local Group of galaxies. It was only discovered as recently as 1997.[1]
The French astronomer Abbé Nicolas Louis de Lacaille created 13 constellations for the southern sky to fill some star poor regions, among them Antlia. It was originally denominated Antlia pneumatica (Latin for the air pump invented by Robert Boyle) which is why in English this constellation is also often called Air Pump.
There is no mythology attached to Antlia as Lacaille discontinued the tradition of giving names from mythology to constellations and instead chose mostly names of instruments used in science.
| The 88 modern Constellations |
|---|
| Andromeda • Antlia • Apus • Aquarius • Aquila • Ara • Aries • Auriga • Boötes • Caelum • Camelopardalis • Cancer • Canes Venatici • Canis Major • Canis Minor • Capricornus • Carina • Cassiopeia • Centaurus • Cepheus • Cetus • Chamaeleon • Circinus • Columba • Coma Berenices • Corona Australis • Corona Borealis • Corvus • Crater • Crux • Cygnus • Delphinus • Dorado • Draco • Equuleus • Eridanus • Fornax • Gemini • Grus • Hercules • Horologium • Hydra • Hydrus • Indus • Lacerta • Leo • Leo Minor • Lepus • Libra • Lupus • Lynx • Lyra • Mensa • Microscopium • Monoceros • Musca • Norma • Octans • Ophiuchus • Orion • Pavo • Pegasus • Perseus • Phoenix • Pictor • Pisces • Piscis Austrinus • Puppis • Pyxis • Reticulum • Sagitta • Sagittarius • Scorpius • Sculptor • Scutum • Serpens • Sextans • Taurus • Telescopium • Triangulum • Triangulum Australe • Tucana • Ursa Major • Ursa Minor • Vela • Virgo • Volans • Vulpecula |
