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Star profile

HIP 82172

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

What is HIP 82172

About 755 light years away, in the vast constellation of Hercules, a variable red M-type giant alternates its brightness in slow cycles. Its light began its journey around 1271, in the heart of the Middle Ages, when Marco Polo was setting out on his famous journey to the court of the Great Khan. Cooler than the Sun and far larger in diameter, it embodies that late stage in which stars pulse in time with their internal evolution. The celestial demigod, with his network of faint jewels, offers it a sky steeped in ancient mythology.

Where it is and when to see it

HIP 82172 lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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

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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 82172

Constellation
Hercules
Apparent magnitude
5.86
Distance
755.1 light years
Coordinates (J2000)
RA 251.832° · Dec 42.239°
Catalogue
HIP 82172 · HD 151732

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

Other stars in Hercules

Hercules has 136 stars in Stelvia's catalogue. Here are a few of them.

See all 136 stars in Hercules