Star profile

101 Herculis

3D likeness based on its real data · class A · ~8,500 K

What is 101 Herculis

101 Herculis is a white A-type star sitting at the edges of the celestial hero, well away from his famous keystone asterism. Its clean, blue-white light travels just over three hundred and twenty-eight years before reaching us. When these photons set out on their journey, the first great cathedrals of the late Baroque were rising across Europe.

Where it is and when to see it

101 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 59° above the horizon.
From New York it culminates about 69° above the horizon.
From Sydney it culminates about 36° above the horizon.

It can be seen from anywhere north of 70° S.

It ranks no. 49 in brightness among the 136 stars of Hercules in our catalogue. To find it, start from Kornephoros, the brightest: it lies about 23° away (a fist at arm's length covers about 10°).

The light you see today left it about 330 years ago.

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Astronomical data for 101 Herculis

Constellation: Hercules
Apparent magnitude: 5.10
Distance: 328.8 light years
Coordinates (J2000): RA 272.220° · Dec 20.045°
Catalogue: HIP 88899 · HD 166230

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Other stars in Hercules

Hercules has 136 stars in Stelvia's catalogue. Here are a few of them.

See all 136 stars in Hercules