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Star profile

HIP 74750

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

What is HIP 74750

In the southern Compass —a constellation traced by Lacaille in the 18th century— burns a very distant blue star, 1,681 light-years away. Its light set out around the year 345, when Constantine the Great was consolidating his new capital on the Bosphorus. Very hot B-type stars are brief sparks: they live for millions of years, not billions, and often die as supernovae.

Where it is and when to see it

HIP 74750 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May, when it culminates around midnight.

  • From London it never rises above the horizon.
  • From New York it never rises above the horizon.
  • From Sydney it never sets and culminates about 63° up.

It can be seen from anywhere south of 29° N.

It ranks no. 16 in brightness among the 21 stars of Circinus in our catalogue. To find it, start from Alpha Circinus, the brightest: it lies about 6° away (a fist at arm's length covers about 10°).

The light you see today left it about 1,700 years ago.

Find it on the sky map

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Leave your signature on HIP 74750

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.

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 74750

Constellation
Circinus
Apparent magnitude
5.74
Distance
1681.4 light years
Coordinates (J2000)
RA 229.153° · Dec -60.904°
Catalogue
HIP 74750 · HD 135160

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

Other stars in Circinus

Circinus has 21 stars in Stelvia's catalogue. Here are a few of them.

See all 21 stars in Circinus