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Star profile

HIP 104516

Hot blue star
3D likeness based on its real data · class B · ~15,000 K

What is HIP 104516

Unnamed in Cygnus, this hot blue star has been sending its light for 443 years. It set off when Galileo was still a young student in Pisa, long before he turned his glass to the sky. A massive B-type, many times hotter and brighter than the Sun, embedded in the bright river of the summer Milky Way that runs through the Swan's cross with a profusion of young stars and dust.

Where it is and when to see it

HIP 104516 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: 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.

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 HIP 104516

Constellation
Cygnus
Apparent magnitude
5.75
Distance
443.2 light years
Coordinates (J2000)
RA 317.565° · Dec 53.563°
Catalogue
HIP 104516 · HD 201834

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

Other stars in Cygnus

Cygnus has 137 stars in Stelvia's catalogue. Here are a few of them.

See all 137 stars in Cygnus