Star profile
HIP 40107
What is HIP 40107
Two hundred and ninety years ago, as the Enlightenment was igniting the first encyclopaedias in Paris, a yellow star in Hydra released the ray that arrives tonight. It shares the temperate hue of the Sun, that golden light which colours sunrises, yet its larger frame makes it an evolved elder sister. Hydra is the longest constellation in the sky, a cosmic serpent that slides across the night for hours; in one of its coils beats this discreet star, almost at the limit of unaided sight.
Where it is and when to see it
HIP 40107 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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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 HIP 40107
- Constellation
- Hydra
- Apparent magnitude
- 5.36
- Distance
- 290.7 light years
- Coordinates (J2000)
- RA 122.888° · Dec -7.773°
- Catalogue
- HIP 40107 · HD 68312
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Hydra
Hydra has 121 stars in Stelvia's catalogue. Here are a few of them.
- AlphardAlpha Hydrae1.99
- Gamma Hydrae2.99
- Zeta Hydrae3.11
- HIP 431425.28
- 14 Hydrae5.30
- HIP 498095.30
- HIP 464045.38
- HIP 616215.41