Star profile
HIP 6631
Cool red starWhat is HIP 6631
Within the small male Water-Serpent, Hydrus —that southern snake coiled near the celestial south pole— beats a red type M star, cool and veteran, far larger than the Sun yet of muted fire. Its light took roughly 904 years to cross the void: it set out when Europe was raising its first Romanesque cathedrals and al-Idrisi was charting the known world at the Sicilian court. It now arrives as an ancient and serene ember.
Where it is and when to see it
HIP 6631 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, 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 60° up.
It can be seen from anywhere south of 26° N.
It ranks no. 17 in brightness among the 20 stars of Hydrus in our catalogue. To find it, start from Beta Hydrus, the brightest: it lies about 14° away (a fist at arm's length covers about 10°).
The light you see today left it about 900 years ago.
It opens in your browser. Free, no account, nothing to install.
Leave your signature on HIP 6631
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 6631
- Constellation
- Hydrus
- Apparent magnitude
- 5.92
- Distance
- 903.6 light years
- Coordinates (J2000)
- RA 21.272° · Dec -64.369°
- Catalogue
- HIP 6631 · HD 8810
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Hydrus
Hydrus has 20 stars in Stelvia's catalogue. Here are a few of them.
- Beta Hydrus2.82
- Alpha Hydrus2.86
- Gamma Hydrus3.26
- Pi 2 Hydrus5.67
- HIP 145215.67
- HIP 79215.70
- HIP 159685.96
- HIP 17065.96