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Star profile

HIP 3951

3D likeness based on its real data · class A · ~8,500 K

What is HIP 3951

In Cassiopeia rests a white A-type star, with serene radiance and a temperature far above the Sun's. Its light took some 640 years to traverse space: it departed around 1386, when Geoffrey Chaucer was beginning his «Canterbury Tales» and Europe was slowly emerging from the Black Death. That brilliance has travelled through the entire modern era to outline today the silhouette of the celestial queen.

Where it is and when to see it

HIP 3951 lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November, when it culminates around midnight.

  • From London it never sets and culminates about 77° up.
  • From New York it never sets and culminates about 66° up.
  • From Sydney it never rises above the horizon.

It can be seen from anywhere north of 26° S.

It ranks no. 42 in brightness among the 93 stars of Cassiopeia in our catalogue. To find it, start from Cih, the brightest: it lies about 4° away (a fist at arm's length covers about 10°).

The light you see today left it about 640 years ago.

Find it on the sky map

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

Leave your signature on HIP 3951

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 3951

Constellation
Cassiopeia
Apparent magnitude
5.35
Distance
639.6 light years
Coordinates (J2000)
RA 12.682° · Dec 64.248°
Catalogue
HIP 3951 · HD 4775

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

Other stars in Cassiopeia

Cassiopeia has 93 stars in Stelvia's catalogue. Here are a few of them.

See all 93 stars in Cassiopeia