Star profile
Psi 1 Lupi
What is Psi 1 Lupi
Psi-1 Lupi belongs to an optical pair alongside Psi-2 Lupi: two yellowish points that a sharp eye can separate on a dark night, though they do not truly share origin or motion. It is an evolved yellow giant, similar in temperature to the Sun but far larger and more luminous. From 220 light years away, it offers a portrait of what yellow stars become when they enter their maturity.
Where it is and when to see it
Psi 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 4° above the horizon.
- From New York it culminates about 15° above the horizon.
- From Sydney it culminates about 89° above the horizon.
It can be seen from anywhere south of 56° N.
It ranks no. 27 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 220 years ago.
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A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.
Astronomical data for Psi 1 Lupi
- Constellation
- Lupus
- Apparent magnitude
- 4.66
- Distance
- 219.7 light years
- Coordinates (J2000)
- RA 234.942° · Dec -34.412°
- Catalogue
- HIP 76705 · HD 139521
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.
- Alpha Lupi2.30
- Beta Lupi2.68
- Gamma Lupi2.80
- Tau 1 Lupi4.56
- HIP 755014.60
- HIP 768294.64
- Psi 2 Lupi4.75
- HIP 701044.78