Star profile

Upsilon 1 Cancri

3D likeness based on its real data · class F · ~6,500 K

What is Upsilon 1 Cancri

Upsilon-1 Cancri is a yellow-white F-type star in the Crab about 250 light-years away. It forms an optical pair with Upsilon-2, sketching within the constellation one of those small pairings that the trained eye reads as a single double-jewel in an otherwise quiet region. Cancer, crossed in antiquity by the Sun at the very moment of the summer solstice, still keeps something of its old air as a pivotal constellation, even though precession has slid the precise solstitial point century after century.

Where it is and when to see it

Upsilon 1 Cancri lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January, when it culminates around midnight.

From London it culminates about 63° above the horizon.
From New York it culminates about 73° above the horizon.
From Sydney it culminates about 32° above the horizon.

It can be seen from anywhere north of 66° S.

It ranks no. 32 in brightness among the 49 stars of Cancer in our catalogue. To find it, start from Tarf, the brightest: it lies about 15° away (a fist at arm's length covers about 10°).

The light you see today left it about 250 years ago.

Find it on the sky map

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

Leave your signature on Upsilon 1 Cancri

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 Upsilon 1 Cancri

Constellation: Cancer
Apparent magnitude: 5.71
Distance: 250.0 light years
Coordinates (J2000): RA 127.877° · Dec 24.081°
Catalogue: HIP 41816 · HD 72041

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

Other stars in Cancer

Cancer has 49 stars in Stelvia's catalogue. Here are a few of them.

See all 49 stars in Cancer