Star profile
64 Serpens
Hot blue starWhat is 64 Serpens
64 Serpentis is a hot blue B-type star about 1,137 light-years away, in the winding body of Serpens —the only constellation split into two separate parts. Its bluish-white tone reveals a surface above ten thousand degrees, typical of the most energetic stars. The light we receive tonight set out when the Song dynasty still ruled China, long before the printing press of the modern age.
Where it is and when to see it
64 Serpens lies in the northern 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 culminates about 41° above the horizon.
- From New York it culminates about 52° above the horizon.
- From Sydney it culminates about 54° above the horizon.
It can be seen from anywhere north of 87° S.
It ranks no. 38 in brightness among the 65 stars of Serpens in our catalogue. To find it, start from Unukalhai, the brightest: it lies about 48° 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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Astronomical data for 64 Serpens
- Constellation
- Serpens
- Apparent magnitude
- 5.56
- Distance
- 1136.6 light years
- Coordinates (J2000)
- RA 284.319° · Dec 2.535°
- Catalogue
- HIP 93051 · HD 175869
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Other stars in Serpens
Serpens has 65 stars in Stelvia's catalogue. Here are a few of them.
- UnukalhaiAlpha Serpens2.63
- Eta Serpens3.23
- Mu Serpens3.54
- 11 Serpens5.50
- Phi Serpens5.54
- HIP 860195.54
- HIP 771635.57
- 4 Serpens5.62