Canis Minor

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Canis minor
Image:Canis minor constellation map.png click for larger image
Abbreviation	CMi
Genitive	Canis Minoris
Symbology	the Smaller Dog
Right ascension	8 h
Declination	+5°
Area	183 sq. deg. Ranked 71st
Number of stars (magnitude < 3)	2
Brightest star	Procyon (α CMi) (App. magnitude 0.38)
Meteor showers	Canis-Minorids
Bordering constellations	Monoceros Gemini Cancer Hydra
Visible at latitudes between +85° and −75° Best visible at 21:00 (9 p.m.) during the month of March

Canis Minor (Latin for little dog) is one of the 88 modern constellations, and was also in Ptolemy's list of 48 constellations. It is said to represent one of the dogs following Orion the hunter.

Contents 1 Notable features 2 Notable deep sky objects 3 Mythology 4 Stars 5 External links

Notable features

Canis Minor is a small constellation mainly consisting of two stars, Procyon (α Canis Minoris, 0.38^m) and β CMi (Gomeisa), 2.9^m). Procyon is the eighth brightest star in the night sky. Procyon means "anterior dog" in Greek, as it rises before the Dog Star, Sirius, of Canis Major.

Notable deep sky objects

Being such a small constellation, Canis Minor has no deep sky object brighter than 10 Mag.

Mythology

Canis Minor was considered to be the smaller of the two hunting dogs of Orion. However, the ancient Greeks did not recognise it as a distinct constellation, and thus originally only considered Orion to have had one dog. See also the constellations of Orion and Canis Major.

Stars

Stars with proper names:

• (10/α CMi) 0.40 Procyon or Antecanis or Al Shira or Elgomaisa [Algomeysa] – double; nearby

  < προκύον The fore-dog [before the Dog Star]

• (3/β CMi) 2.89 Gomeisa [Algomeyla, Gomelza]

  < الغميساء al-ghumaisa’ The bleary-eyed (woman)

Stars with Bayer designations:

4/γ CMi 4.33; 7/δ¹ CMi 5.24; 8/δ² CMi 5.59; 9/δ³ CMi 5.83; 2/ε CMi 4.99; 13/ζ CMi 5.12; 5/η CMi 5.22; G CMi 4.39

Stars with Flamsteed designations:

1 CMi 5.37; 6 CMi 4.55; 11 CMi 5.25; 14 CMi 5.30

Constellations listed by Ptolemy

Andromeda | Aquarius | Aquila | Ara | Argo Navis | Aries | Auriga | Boötes | Cancer | Canis Major | Canis Minor | Capricornus | Cassiopeia | Centaurus | Cepheus | Cetus | Corona Australis | Corona Borealis | Corvus | Crater | Cygnus | Delphinus | Draco | Equuleus | Eridanus | Gemini | Hercules | Hydra | Leo | Lepus | Libra | Lupus | Lyra | Ophiuchus | Orion | Pegasus | Perseus | Pisces | Piscis Austrinus | Sagitta | Sagittarius | Scorpius | Serpens | Taurus | Triangulum | Ursa Major | Ursa Minor | Virgo

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

External links

• The Deep Photographic Guide to the Constellations: Canis Minor