Star profile

77 Pegasi

Cool red star

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

What is 77 Pegasi

77 Pegasi is a red M-type giant burning at 619 light-years inside the great square of Pegasus, the winged horse of the autumn sky. Its temperate surface, barely three thousand degrees, radiates the ruddy hue typical of stars that have exhausted hydrogen and swollen to colossal sizes. The light reaching us tonight departed as Cervantes was beginning to shape Don Quixote.

Where it is and when to see it

77 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 49° above the horizon.
From New York it culminates about 60° above the horizon.
From Sydney it culminates about 46° above the horizon.

It can be seen from anywhere north of 80° S.

It ranks no. 37 in brightness among the 98 stars of Pegasus in our catalogue. To find it, start from Enif, the brightest: it lies about 29° away (a fist at arm's length covers about 10°).

The light you see today left it about 620 years ago.

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Astronomical data for 77 Pegasi

Constellation: Pegasus
Apparent magnitude: 5.09
Distance: 619.0 light years
Coordinates (J2000): RA 355.843° · Dec 10.332°
Catalogue: HIP 117020 · HD 222764

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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