Confirmed exoplanet · Database record + computed analysis
1RXS J160929.1-210524 b
A confirmed world orbiting 1RXS J160929.1-210524, 453.8 light-years away.
A gas giant
18.65 Earth radii, Jupiter-class (Jupiter is 11.2).
Temperature and starlight
Its equilibrium temperature (the airless-world estimate) is about 1,427 °C. Hot enough to melt copper; any surface would glow.
Its sun
Its star is an orange K-type (4,060 K), K7 V: cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability.
How far is that, really?
At 454 light-years, tonight's light from this system left it around the year 1572. A Voyager-speed probe would need roughly 8,028,857 years to get there.
How we found it
It was directly imaged, one of the rare planets actually photographed as its own point of light, possible only for young, hot, wide-orbiting giants. The discovery was announced in 2008 from Gemini Observatory.
Everything above is computed from the archive’s measured values for this planet. Where a quantity is missing, the statement is omitted rather than guessed.
About this record
The measured values come from the NASA Exoplanet Archive, and any missing value has not been determined yet; the Atlas never fills gaps with guesses. More standout worlds: Proxima b, TRAPPIST-1e, K2-18 b, 55 Cancri e, and the detection methods that found them all.