Star profile

24 Persei

3D likeness based on its real data · class K · ~4,200 K

What is 24 Persei

24 Persei glows with a quiet orange tint some 368 light-years away, in a constellation drawn by Greek myth as a hero holding Medusa's head. Its light, weighted toward long wavelengths, reveals a K-class star cooler than the Sun yet far older and more swollen. It is drifting toward us at around 37 kilometres per second, silently, and has been for millennia.

Where it is and when to see it

24 Persei 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 74° above the horizon.
From New York it culminates about 84° above the horizon.
From Sydney it culminates about 21° above the horizon.

It can be seen from anywhere north of 55° S.

It ranks no. 36 in brightness among the 99 stars of Perseus in our catalogue. To find it, start from Mirfak, the brightest: it lies about 15° away (a fist at arm's length covers about 10°).

The light you see today left it about 370 years ago.

Find it on the sky map

It opens in your browser. Free, no account, nothing to install.

Leave your signature on 24 Persei

Your name and a message go up on the map for everyone to read. Signing is free.

Without a lock, someone else can replace your signature. How the lock works

We'll ask for an email to confirm it's you, no password.

Write my signature

A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.

Astronomical data for 24 Persei

Constellation: Perseus
Apparent magnitude: 4.94
Distance: 368.2 light years
Coordinates (J2000): RA 44.765° · Dec 35.183°
Catalogue: HIP 13905 · HD 18449

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

Other stars in Perseus

Perseus has 99 stars in Stelvia's catalogue. Here are a few of them.

See all 99 stars in Perseus