
Star profile
Mu Aquarii
What is Mu Aquarii
An A-type white in Aquarius, 157 light-years away, young and hot compared with our yellow Sun. Its light belongs to the bright tier of nuclear youth: hydrogen burning steadily in the core, untroubled by the complications of an aged giant. It glows quietly among the streams of water poured by the Cup-Bearer — one of the most ancient zodiacal constellations, already engraved on Mesopotamian tablets nearly four thousand years ago.
Where it is and when to see it
Mu 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 August, when it culminates around midnight.
- From London it culminates about 30° above the horizon.
- From New York it culminates about 40° above the horizon.
- From Sydney it culminates about 65° above the horizon.
It can be seen from anywhere south of 81° N.
It ranks no. 26 in brightness among the 99 stars of Aquarius in our catalogue. To find it, start from Sadalsuud, the brightest: it lies about 10° away (a fist at arm's length covers about 10°).
The light you see today left it about 160 years ago.
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Astronomical data for Mu Aquarii
- Constellation
- Aquarius
- Apparent magnitude
- 4.73
- Distance
- 157.3 light years
- Coordinates (J2000)
- RA 313.163° · Dec -8.983°
- Catalogue
- HIP 103045 · HD 198743
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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
- 66 Aquarii4.68
- 101 Aquarii4.70
- 89 Aquarii4.71
- Omicron Aquarii4.74
- Pi Aquarii4.80