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Star profile

30 Capricorni

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

What is 30 Capricorni

30 Capricorni is a blue B-type star, far hotter and more luminous than the Sun, set in the modest figure of the zodiacal Sea-Goat. Its hue betrays surface temperatures of tens of thousands of degrees. Its light departs more than five centuries ago toward us, crossing a region of sky sparsely populated with bright stars.

Where it is and when to see it

30 Capricorni lies in the southern 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

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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 30 Capricorni

Constellation
Capricornus
Apparent magnitude
5.40
Distance
533.9 light years
Coordinates (J2000)
RA 319.489° · Dec -17.985°
Catalogue
HIP 105143 · HD 202671

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

Other stars in Capricornus

Capricornus has 48 stars in Stelvia's catalogue. Here are a few of them.

See all 48 stars in Capricornus