
Star profile
Tau 2 Arietis
What is Tau 2 Arietis
Tau-2 Arietis belongs to the uneven flock of the Ram, the zodiacal symbol that traditionally opens spring in the northern hemisphere. At 318 light-years, it is an orange K-type giant in its advanced evolutionary phase. Its warm light slips between the few bright stars of Aries, a small but ancient constellation tied to the golden fleece and to the earliest celestial charts of Mesopotamia.
Where it is and when to see it
Tau 2 Arietis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November, when it culminates around midnight.
- From London it culminates about 59° above the horizon.
- From New York it culminates about 70° above the horizon.
- From Sydney it culminates about 35° above the horizon.
It can be seen from anywhere north of 69° S.
It ranks no. 15 in brightness among the 57 stars of Aries in our catalogue. To find it, start from Hamal, the brightest: it lies about 18° away (a fist at arm's length covers about 10°).
The light you see today left it about 320 years ago.
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Astronomical data for Tau 2 Arietis
- Constellation
- Aries
- Apparent magnitude
- 5.10
- Distance
- 317.6 light years
- Coordinates (J2000)
- RA 50.689° · Dec 20.742°
- Catalogue
- HIP 15737 · HD 20893
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Other stars in Aries
Aries has 57 stars in Stelvia's catalogue. Here are a few of them.
- HamalAlpha Arietis2.01
- SheratanBeta Arietis2.64
- Bharani3.61
- 14 Arietis4.98
- Kappa Arietis5.03
- Iota Arietis5.09
- 38 Arietis5.17
- Eta Arietis5.23