Star profile
Eta 2 Hydrus
What is Eta 2 Hydrus
Eta-2 Hydri is a yellow type-G giant that hosts a confirmed planet, discovered in 2005 through the radial-velocity method: a gas world several times more massive than Jupiter, orbiting an aging sun. The star sits in the small Hydrus, the southern Water Snake charted by the Dutch navigators Keyser and de Houtman in the late sixteenth century.
Where it is and when to see it
Eta 2 Hydrus lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is August, when it culminates around midnight.
- From London it never rises above the horizon.
- From New York it never rises above the horizon.
- From Sydney it never sets and culminates about 56° up.
It can be seen from anywhere south of 22° N.
It ranks no. 6 in brightness among the 20 stars of Hydrus in our catalogue. To find it, start from Beta Hydrus, the brightest: it lies about 12° 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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Astronomical data for Eta 2 Hydrus
- Constellation
- Hydrus
- Apparent magnitude
- 4.68
- Distance
- 218.8 light years
- Coordinates (J2000)
- RA 28.734° · Dec -67.647°
- Catalogue
- HIP 8928 · HD 11977
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Other stars in Hydrus
Hydrus has 20 stars in Stelvia's catalogue. Here are a few of them.
- Beta Hydrus2.82
- Alpha Hydrus2.86
- Gamma Hydrus3.26
- Delta Hydrus4.08
- Epsilon Hydrus4.12
- Nu Hydrus4.76
- Zeta Hydrus4.83
- Lambda Hydrus5.09