Star profile

42 Librae

3D likeness based on its real data · class K · ~4,200 K

What is 42 Librae

42 Librae glows in the orange tone typical of a K-class star, some 380 light-years away in the zodiacal scales of Libra. Its light, cooler and more golden than the Sun s, hints at a tempered surface but a sizeable volume. The radiation reaching observers tonight departed around 1640, as Europe was just emerging from the Thirty Years War.

Where it is and when to see it

42 Librae lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May, when it culminates around midnight.

From London it culminates about 15° above the horizon.
From New York it culminates about 25° above the horizon.
From Sydney it culminates about 80° above the horizon.

It can be seen from anywhere south of 66° N.

It ranks no. 16 in brightness among the 49 stars of Libra in our catalogue. To find it, start from Zubeneschamali, the brightest: it lies about 15° away (a fist at arm's length covers about 10°).

The light you see today left it about 380 years ago.

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Astronomical data for 42 Librae

Constellation: Libra
Apparent magnitude: 4.97
Distance: 382.4 light years
Coordinates (J2000): RA 235.070° · Dec -23.818°
Catalogue: HIP 76742 · HD 139663

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Other stars in Libra

Libra has 49 stars in Stelvia's catalogue. Here are a few of them.

See all 49 stars in Libra