Star profile
Theta Cygni
What is Theta Cygni
Theta Cygni is a close neighbour, just 60 light-years away, a yellow-white star barely larger and hotter than the Sun. Accompanied by a very distant red dwarf, it has been at the centre of an astronomical debate for years: subtle radial-velocity variations hint at a two-Jupiter-mass planet on a 150-day orbit, still unconfirmed. Young — between one and 1.6 billion years old — it keeps its secret unresolved.
Where it is and when to see it
Theta Cygni lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is August: 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
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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 Theta Cygni
- Constellation
- Cygnus
- Apparent magnitude
- 4.49
- Distance
- 59.8 light years
- Coordinates (J2000)
- RA 294.111° · Dec 50.221°
- Catalogue
- HIP 96441 · HD 185395
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Other stars in Cygnus
Cygnus has 137 stars in Stelvia's catalogue. Here are a few of them.
- DenebAlpha Cygni1.25
- SadrGamma Cygni2.23
- AljanahEpsilon Cygni2.48
- Upsilon Cygni4.41
- 39 Cygni4.43
- Mu 1 Cygni4.49
- Lambda Cygni4.53
- 63 Cygni4.56