Star profile

75 Leonis

Cool red star

3D likeness based on its real data · class M · ~3,200 K

What is 75 Leonis

75 Leonis is one of the few M-type residents of Leo, a cold red star whose ruby colour reveals itself only to a patient eye. Its light takes 332 years to arrive: it left around 1694, while Newton was consolidating his synthesis of universal gravitation. It is the deep note in the lion's mane, an ember flash among stars far hotter and whiter.

Where it is and when to see it

75 Leonis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is March, when it culminates around midnight.

From London it culminates about 41° above the horizon.
From New York it culminates about 51° above the horizon.
From Sydney it culminates about 54° above the horizon.

It can be seen from anywhere north of 88° S.

It ranks no. 35 in brightness among the 80 stars of Leo in our catalogue. To find it, start from Regulus, the brightest: it lies about 20° 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 75 Leonis

Constellation: Leo
Apparent magnitude: 5.18
Distance: 332.2 light years
Coordinates (J2000): RA 169.323° · Dec 2.011°
Catalogue: HIP 55137 · HD 98118

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Other stars in Leo

Leo has 80 stars in Stelvia's catalogue. Here are a few of them.

See all 80 stars in Leo