Constellations by Month

Constellations that can be seen in the evening sky change from month to month. Stars rise and set four minutes earlier each night and, as a result, we see constellations rising and setting two hours earlier each month. They move by 90 degrees from one season to the next and return to the same position after a full year. Each constellation is best seen in the evening sky at a certain time of year, whether it only briefly shows up above the horizon or it is visible throughout the year from a certain location.

Below is the list of constellations visible at 9 pm each month. These are not all the constellations that can be seen in the evening sky at any particular time, but simply those that are best observed at the given time of year.

JANUARY FEBRUARY MARCH
Caelum Auriga Cancer
Dorado Camelopardalis Canis Minor
Lepus Canis Major Carina
Mensa Columba Lynx
Orion Gemini Pyxis
Pictor Monoceros Vela
Reticulum Puppis Volans
Taurus
APRIL MAY  JUNE
Antlia Canes Venatici Boötes
Chamaeleon Centaurus Libra
Crater Coma Berenices Lupus
Hydra Corvus Ursa Minor
Leo Crux
Leo Minor Musca
Sextans Virgo
Ursa Major
JULY AUGUST SEPTEMBER
Apus Aquila Capricornus
Ara Corona Australis Cygnus
Circinus Lyra Delphinus
Corona Borealis Pavo Equuleus
Draco Sagitta Indus
Hercules Sagittarius Microscopium
Norma Scutum Vulpecula
Ophiuchus Telescopium
Scorpius
Serpens
Triangulum Australe
OCTOBER NOVEMBER DECEMBER
Aquarius Andromeda Aries
Grus Cassiopeia Eridanus
Lacerta Cepheus Fornax
Octans Cetus Horologium
Pegasus Hydrus Perseus
Piscis Austrinus Phoenix Triangulum
Pisces
Sculptor
Tucana

Even though each given month is the best time to observe a particular constellation in the evening, the constellation may not be visible from every location on Earth.  The northern constellations Cassiopeia and Ursa Major, for instance, are easy to see for observers in the northern hemisphere, but invisible to those living south of latitudes 20°S and 30°S respectively. Similarly, the southern constellations Apus, Chamaeleon, Mensa and Octans are not visible north of equatorial latitudes, while the more prominent Carina, Centaurus and Crux cannot be seen by observers north of latitudes 20°N, 25°N and 20°N respectively.

Constellations by season (northern hemisphere), image: Roberto Mura

The table below shows the latitudes between which each constellation is visible.

Constellation Month Northern latitude Southern latitude
Andromeda November 90° 40°
Antlia April 45° 90°
Apus July 90°
Aquarius October 65° 90°
Aquila August 90° 75°
Ara July 25° 90°
Aries December 90° 60°
Auriga February 90° 40°
Boötes June 90° 50°
Caelum January 40° 90°
Camelopardalis February 90° 10°
Cancer March 90° 60°
Canes Venatici May 90° 40°
Canis Major February 60° 90°
Canis Minor March 90° 75°
Capricornus September 60° 90°
Carina March 20° 90°
Cassiopeia November 90° 20°
Centaurus May 25° 90°
Cepheus November 90° 10°
Cetus November 70° 90°
Chamaeleon April 90°
Circinus July 30° 90°
Columba February 45° 90°
Coma Berenices May 90° 70°
Corona Australis August 40° 90°
Corona Borealis July 90° 50°
Corvus May 60° 90°
Crater April 65° 90°
Crux May 20° 90°
Cygnus September 90° 40°
Delphinus September 90° 70°
Dorado January 20° 90°
Draco July 90° 15°
Equuleus September 90° 80°
Eridanus December 32° 90°
Fornax December 50° 90°
Gemini February 90° 60°
Grus October 34° 90°
Hercules July 90° 50°
Horologium December 30° 90°
Hydra April 54° 83°
Hydrus November 90°
Indus September 15° 90°
Lacerta October 90° 40°
Leo April 90° 65°
Leo Minor April 90° 45°
Lepus January 63° 90°
Libra June 65° 90°
Lupus June 35° 90°
Lynx March 90° 55°
Lyra August 90° 40°
Mensa January 90°
Microscopium September 45° 90°
Monoceros February 75° 90°
Musca May 10° 90°
Norma July 30° 90°
Octans October 90°
Ophiuchus July 80° 80°
Orion January 85° 75°
Pavo August 30° 90°
Pegasus October 90° 60°
Perseus December 90° 35°
Phoenix November 32° 90°
Pictor January 26° 90°
Pisces November 90° 65°
Piscis Austrinus October 55° 90°
Puppis February 40° 90°
Pyxis March 50° 90°
Reticulum January 23° 90°
Sagitta August 90° 70°
Sagittarius August 55° 90°
Scorpius July 40° 90°
Sculptor November 50° 90°
Scutum August 80° 90°
Serpens July 80° 80°
Sextans April 80° 90°
Taurus January 90° 65°
Telescopium August 40° 90°
Triangulum December 90° 60°
Triangulum Australe July 25° 90°
Tucana November 25° 90°
Ursa Major April 90° 30°
Ursa Minor June 90° 10°
Vela March 30° 90°
Virgo May 80° 80°
Volans March 15° 90°
Vulpecula September 90° 55°