Star profile

Eta Andromedae

3D likeness based on its real data · class G · ~5,500 K

What is Eta Andromedae

Eta Andromedae is a yellow star about 230 light-years away in the silhouette of the princess chained to the cliff. Of G class like the Sun but already a giant, its warm light slides among the knots of a constellation that also holds the sky's most famous galaxy, M31. Eta shines off to the side of the tale —discreet, yet part of the frame.

Where it is and when to see it

Eta 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 culminates about 62° above the horizon.
From New York it culminates about 73° above the horizon.
From Sydney it culminates about 33° above the horizon.

It can be seen from anywhere north of 67° S.

It ranks no. 16 in brightness among the 81 stars of Andromeda in our catalogue. To find it, start from Alpheratz, the brightest: it lies about 12° away (a fist at arm's length covers about 10°).

The light you see today left it about 230 years ago.

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Astronomical data for Eta Andromedae

Constellation: Andromeda
Apparent magnitude: 4.40
Distance: 229.7 light years
Coordinates (J2000): RA 14.302° · Dec 23.418°
Catalogue: HIP 4463 · HD 5516

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Andromeda

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

See all 81 stars in Andromeda