Star profile
101 Aquarii
What is 101 Aquarii
101 Aquarii closes the numbered procession of the Water Bearer with a polished, serene white light of class A, set almost three hundred light-years from Earth. It lies in a region of the sky ruled by faint figures —Aquarius, Piscis Austrinus— where it acts as a quiet coda to Flamsteed’s catalogue for this constellation. Its glow comes from a surface a few thousand degrees hotter than the Sun’s.
Where it is and when to see it
101 Aquarii lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is September, when it culminates around midnight.
- From London it culminates about 18° above the horizon.
- From New York it culminates about 28° above the horizon.
- From Sydney it culminates about 77° above the horizon.
It can be seen from anywhere south of 69° N.
It ranks no. 24 in brightness among the 99 stars of Aquarius in our catalogue. To find it, start from Sadalsuud, the brightest: it lies about 33° away (a fist at arm's length covers about 10°).
The light you see today left it about 290 years ago.
It opens in your browser. Free, no account, nothing to install.
Leave your signature on 101 Aquarii
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 101 Aquarii
- Constellation
- Aquarius
- Apparent magnitude
- 4.70
- Distance
- 293.6 light years
- Coordinates (J2000)
- RA 353.319° · Dec -20.915°
- Catalogue
- HIP 116247 · HD 221565
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Aquarius
Aquarius has 99 stars in Stelvia's catalogue. Here are a few of them.
- SadalsuudBeta Aquarii2.90
- SadalmelikAlpha Aquarii2.95
- SkatDelta Aquarii3.27
- Nu Aquarii4.50
- BundaXi Aquarii4.68
- 66 Aquarii4.68
- 89 Aquarii4.71
- Mu Aquarii4.73