The Constellation Aries

by Dominic Ford
Aries Aries
The constellation Aries. Roll mouse over to see labels.
Source: Stellarium.

Aries is a medium-sized zodiacal constellation which represents a ram in classical mythology.

It is visible in the northern sky in the months around October, and is dominated by the two second-magnitude stars Hamal and β-Ari. These mark the two horns of the ram.

Aries lies well away from the plane of the Milky Way and does not contain any open or globular clusters. It is home to many faint galaxies, though.

In Greek mythology, Aries is identified as the winged ram whose golden fleece was the object of the voyage of Jason and the Argonauts.

This constellation gives its name to the point in the sky where the Sun crosses the equator at the March equinox, known as the First Point of Aries. Historically, the Sun once lay in the constellation of Aries at the time of the equinox, but the phenomenon of the precession of the equinoxes means that it now lies nearly 30° away, in Pisces.

Date First Appeared
Sky Area
1.1% of the sky
441.4 square degrees
Messier Objects
Aries contains no Messier objects
Caldwell Objects
Aries contains no Caldwell objects
The following constellations neighbor Aries: Cetus, Perseus, Pisces, Taurus, Triangulum.
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Brightest Objects in Aries

Stars Open Clusters Globular Clusters Galaxies
Stars Open Clusters Globular Clusters Galaxies
Hamal (mag 2.0) NGC 772 (mag 10.3)
Sheratan (mag 2.7) NGC 821 (mag 10.8)
c-Ari (mag 3.6) NGC 972 (mag 11.3)
Botein (mag 4.3) NGC 1156 (mag 11.7)
HD 20644 (mag 4.5) NGC 877 (mag 11.8)
39-Ari (mag 4.5) NGC 691 (mag 12.0)
ε-Ari (mag 4.6) NGC 976 (mag 12.4)
35-Ari (mag 4.6) NGC 803 (mag 12.4)
Mesarthim (mag 4.6) NGC 673 (mag 13.0)
λ-Ari (mag 4.8) NGC 678 (mag 13.0)
γ²-Ari (mag 4.8) NGC 1134 (mag 13.0)
ζ-Ari (mag 4.9) NGC 697 (mag 13.0)
14-Ari (mag 5.0) NGC 776 (mag 13.0)
κ-Ari (mag 5.0) NGC 1056 (mag 13.0)
τ²-Ari (mag 5.1) NGC 680 (mag 13.0)
ι-Ari (mag 5.1) NGC 930 (mag 13.0)
ε-Ari (mag 5.2) NGC 992 (mag 13.0)
UV Ari (mag 5.2) NGC 820 (mag 13.0)
η-Ari (mag 5.2) NGC 1036 (mag 13.0)
33-Ari (mag 5.3) NGC 918 (mag 13.0)
π-Ari (mag 5.3) IC 1828 (mag 13.0)
τ-Ari (mag 5.3) NGC 1012 (mag 13.0)
ν-Ari (mag 5.5) NGC 871 (mag 13.5)
52-Ari (mag 5.5) NGC 928 (mag 14.0)
ξ-Ari (mag 5.5) NGC 719 (mag 14.0)




Color scheme