Star profile
Tau 2 Lupi
What is Tau 2 Lupi
Tau-2 Lupi is a white A-type star lying some 319 light-years away, set within the body of the Wolf, one of the oldest southern constellations and already catalogued by Ptolemy. Its quiet brightness blends into a dense star field crossed by the distant clouds of the Milky Way and bordering the stellar nurseries of Centaurus and Scorpius.
Where it is and when to see it
Tau 2 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 never rises above the horizon.
- From New York it culminates about 4° above the horizon.
- From Sydney it culminates about 79° above the horizon.
It can be seen from anywhere south of 45° N.
It ranks no. 18 in brightness among the 74 stars of Lupus in our catalogue. To find it, start from Alpha Lupi, the brightest: it lies about 3° away (a fist at arm's length covers about 10°).
The light you see today left it about 320 years ago.
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Astronomical data for Tau 2 Lupi
- Constellation
- Lupus
- Apparent magnitude
- 4.33
- Distance
- 319.2 light years
- Coordinates (J2000)
- RA 216.545° · Dec -45.379°
- Catalogue
- HIP 70576 · HD 126354
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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
- Theta Lupi4.22
- Mu Lupi4.27
- Omicron Lupi4.32
- Omega Lupi4.34
- 2 Lupi4.35