Star profile

HIP 77442

Variable star

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

What is HIP 77442

In the curved diadem of the Northern Crown pulses a white variable A-class star, in a region of sky whose light has been crossing enormous distance. Young variable A stars beat in rapid cycles, expanding and contracting in response to tensions of pressure and radiation; they are genuine cosmic metronomes with which astronomers measure the geometry of the universe.

Where it is and when to see it

HIP 77442 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, when it culminates around midnight.

From London it culminates about 67° above the horizon.
From New York it culminates about 77° above the horizon.
From Sydney it culminates about 28° above the horizon.

It can be seen from anywhere north of 62° S.

It ranks no. 25 in brightness among the 26 stars of Corona Borealis in our catalogue. To find it, start from Alphecca, the brightest: it lies about 3° away (a fist at arm's length covers about 10°).

The light you see today left it about 330,000 years ago.

Find it on the sky map

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

Leave your signature on HIP 77442

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.

Write my signature

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 77442

Constellation: Corona Borealis
Apparent magnitude: 5.89
Distance: 326200.0 light years
Coordinates (J2000): RA 237.143° · Dec 28.157°
Catalogue: HIP 77442 · HD 141527

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

Other stars in Corona Borealis

Corona Borealis has 26 stars in Stelvia's catalogue. Here are a few of them.

See all 26 stars in Corona Borealis