Star profile

1 Lupi

Highly luminous star

3D likeness based on its real data · class F · ~6,500 K

What is 1 Lupi

1 Lupi is a highly luminous star in Lupus, leaning into the southern sky almost 2,000 light-years away. It belongs to the F family, those whitish-yellow stars hotter than the Sun, with calm photospheres. At such a distance, its light takes so long to reach us that the flicker crossing the atmosphere tonight left its surface when, on Earth, the Byzantine empire still stood and the first European universities had yet to be founded.

Where it is and when to see it

1 Lupi 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 7° above the horizon.
From New York it culminates about 18° above the horizon.
From Sydney it culminates about 88° above the horizon.

It can be seen from anywhere south of 58° N.

It ranks no. 32 in brightness among the 74 stars of Lupus in our catalogue. To find it, start from Alpha Lupi, the brightest: it lies about 17° away (a fist at arm's length covers about 10°).

The light you see today left it about 2,000 years ago.

Find it on the sky map

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Astronomical data for 1 Lupi

Constellation: Lupus
Apparent magnitude: 4.91
Distance: 1953.3 light years
Coordinates (J2000): RA 228.656° · Dec -31.519°
Catalogue: HIP 74604 · HD 135153

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Lupus

Lupus has 74 stars in Stelvia's catalogue. Here are a few of them.

See all 74 stars in Lupus