Star profile
Xi Telescopium
Cool red starWhat is Xi Telescopium
Xi Telescopii is a red giant or bright giant about 1,080 light-years away, swollen to 56 times the Sun's radius and radiating nearly three thousand times its luminosity. An aged star whose brightness shifts slightly on a twelve-day cycle, a signature of pulsation in its atmosphere. The light arriving tonight set out when Maya civilization was raising its final temples.
Where it is and when to see it
Xi Telescopium lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is July, 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 culminates about 71° above the horizon.
It can be seen from anywhere south of 37° N.
It ranks no. 7 in brightness among the 27 stars of Telescopium in our catalogue. To find it, start from Alpha Telescopium, the brightest: it lies about 18° away (a fist at arm's length covers about 10°).
The light you see today left it about 1,100 years ago.
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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 Xi Telescopium
- Constellation
- Telescopium
- Apparent magnitude
- 4.93
- Distance
- 1080.1 light years
- Coordinates (J2000)
- RA 301.846° · Dec -52.881°
- Catalogue
- HIP 99120 · HD 190421
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Telescopium
Telescopium has 27 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Telescopium3.49
- Zeta Telescopium4.10
- Epsilon Telescopium4.52
- Lambda Telescopium4.85
- Iota Telescopium4.88
- Delta 1 Telescopium4.92
- Eta Telescopium5.03
- Delta 2 Telescopium5.07