Star profile

2 Andromedae

3D likeness based on its real data · class A · ~8,500 K

What is 2 Andromedae

2 Andromedae is a white A-type star at the feet of the chained princess, that mythological figure who shares the sky with her rescuer Perseus. More than four hundred light-years away, its light departed when telescopes were only beginning to be perfected. It shines with the bluish sharpness typical of hot main-sequence stars.

Where it is and when to see it

2 Andromedae lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October, when it culminates around midnight.

From London it never sets and culminates about 81° up.
From New York it culminates about 88° above the horizon.
From Sydney it culminates about 13° above the horizon.

It can be seen from anywhere north of 47° S.

It ranks no. 34 in brightness among the 81 stars of Andromeda in our catalogue. To find it, start from Alpheratz, the brightest: it lies about 19° away (a fist at arm's length covers about 10°).

The light you see today left it about 420 years ago.

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Astronomical data for 2 Andromedae

Constellation: Andromeda
Apparent magnitude: 5.09
Distance: 421.4 light years
Coordinates (J2000): RA 345.652° · Dec 42.758°
Catalogue: HIP 113788 · HD 217782

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Other stars in Andromeda

Andromeda has 81 stars in Stelvia's catalogue. Here are a few of them.

See all 81 stars in Andromeda