Star profile
98 Herculis
Cool red starWhat is 98 Herculis
98 Herculis is an M-type red giant some 738 light-years away, cold and vast, in a late stage of its evolution. Its outer layers have cooled into deep reddish tones, a stellar sunset stretched across millions of years. Hercules, the constellation that shelters it, holds the globular cluster M13, one of the classic summer targets for amateur telescopes.
Where it is and when to see it
98 Herculis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is June, when it culminates around midnight.
- From London it culminates about 61° above the horizon.
- From New York it culminates about 72° above the horizon.
- From Sydney it culminates about 34° above the horizon.
It can be seen from anywhere north of 68° S.
It ranks no. 38 in brightness among the 136 stars of Hercules in our catalogue. To find it, start from Kornephoros, the brightest: it lies about 22° away (a fist at arm's length covers about 10°).
The light you see today left it about 740 years ago.
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Astronomical data for 98 Herculis
- Constellation
- Hercules
- Apparent magnitude
- 4.96
- Distance
- 738.0 light years
- Coordinates (J2000)
- RA 271.508° · Dec 22.219°
- Catalogue
- HIP 88657 · HD 165625
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Other stars in Hercules
Hercules has 136 stars in Stelvia's catalogue. Here are a few of them.
- KornephorosBeta Herculis2.78
- RasalgethiAlpha 1 Herculis2.78
- Zeta Herculis2.81
- 42 Herculis4.86
- 60 Herculis4.89
- 106 Herculis4.92
- 104 Herculis4.96
- HIP 834304.97