Star profile

57 Pegasi

Variable star

3D likeness based on its real data · class M · ~3,200 K

What is 57 Pegasi

57 Pegasi is an M-type red giant, an old and swollen star whose brightness drifts at the slow tempo of cool stellar atmospheres. It rides along the flank of Pegasus at some seven hundred and eighty-two light-years, in a stretch of the autumn sky where the unaided eye can only just catch it. Its reddish light has travelled for centuries, crossing nearly unfathomable voids, before halting tonight on a dilated pupil.

Where it is and when to see it

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

From London it culminates about 47° above the horizon.
From New York it culminates about 58° above the horizon.
From Sydney it culminates about 47° above the horizon.

It can be seen from anywhere north of 81° S.

It ranks no. 32 in brightness among the 98 stars of Pegasus in our catalogue. To find it, start from Enif, the brightest: it lies about 21° away (a fist at arm's length covers about 10°).

The light you see today left it about 780 years ago.

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Astronomical data for 57 Pegasi

Constellation: Pegasus
Apparent magnitude: 5.05
Distance: 782.3 light years
Coordinates (J2000): RA 347.381° · Dec 8.677°
Catalogue: HIP 114347 · HD 218634

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Other stars in Pegasus

Pegasus has 98 stars in Stelvia's catalogue. Here are a few of them.

See all 98 stars in Pegasus