Star profile
108 Aquarii
Variable starWhat is 108 Aquarii
108 Aquarii belongs to that rare family of white A-type stars whose brightness refuses to stand still — it oscillates with the inner pulse of its atmosphere. Nearly 319 light-years away, its light crossed the void while empires shifted on Earth. The pulsation is subtle at magnitude 5.17, picked up by the Hipparcos satellite long before any human eye could trace it.
Where it is and when to see it
108 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 20° above the horizon.
- From New York it culminates about 30° above the horizon.
- From Sydney it culminates about 75° above the horizon.
It can be seen from anywhere south of 71° N.
It ranks no. 38 in brightness among the 99 stars of Aquarius in our catalogue. To find it, start from Sadalsuud, the brightest: it lies about 37° away (a fist at arm's length covers about 10°).
The light you see today left it about 320 years ago.
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Astronomical data for 108 Aquarii
- Constellation
- Aquarius
- Apparent magnitude
- 5.17
- Distance
- 318.9 light years
- Coordinates (J2000)
- RA 357.839° · Dec -18.909°
- Catalogue
- HIP 117629 · HD 223640
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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
- 25 Aquarii5.10
- 47 Aquarii5.12
- 1 Aquarii5.15
- 97 Aquarii5.19
- 94 Aquarii5.20