Star profile

4 Equuleus

3D likeness based on its real data · class F · ~6,500 K

What is 4 Equuleus

4 Equulei is a yellow-white F-type star about 160 light-years away, kindled in the Little Horse —the second smallest constellation in the firmament—. Hotter and more luminous than the Sun, it holds a sharp light that betrays young stellar atmospheres. The beam crossing the eyepiece tonight set out around the mid-nineteenth century, the years astronomy was beginning to read the chemical composition of stars through their spectrum.

Where it is and when to see it

4 Equuleus lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is August: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.

Find it on the sky map

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

The signature wall

Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.

A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works

If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, 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 4 Equuleus

Constellation: Equuleus
Apparent magnitude: 5.94
Distance: 159.6 light years
Coordinates (J2000): RA 316.361° · Dec 5.958°
Catalogue: HIP 104101 · HD 200790

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

Other stars in Equuleus

Equuleus has 12 stars in Stelvia's catalogue. Here are a few of them.

See all 12 stars in Equuleus