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Earth
0.01 AU0.1110100 AU MercuryEarthJupiterNeptune BD-08 2823 b · 0.049 AU
Diagram, not a photograph. Sizes to scale; distance from the star on a logarithmic scale, worked out from the orbital period and the star’s mass. The planet’s colour shows its equilibrium temperature (hot), not its real colour. Source: NASA Exoplanet Archive.

Confirmed exoplanet · Database record + computed analysis

BD-08 2823 b

A confirmed world orbiting BD-08 2823, 134.8 light-years away.

134.8 light-years (41.3 pc) Discovered 2009 · Radial Velocity

A giant planet

about 2948 Earth masses (Jupiter is 318).

The orbit

Its year, one full orbit, takes just 5.6 Earth days.

Temperature and starlight

Its equilibrium temperature (the airless-world estimate) is about 526 °C. Hotter than Venus's surface. It receives 65.7 times the starlight Earth gets.

Its sun

Its star is an orange K-type (4,816 K), K3 V: cooler and longer-lived than the Sun, a class some astronomers consider ideal for habitability. It shares the system with 1 other known planet.

How far is that, really?

At 135 light-years, tonight's light from this system left it around the year 1891. A Voyager-speed probe would need roughly 2,385,211 years to get there.

How we found it

It was found by the radial-velocity method: the planet's gravity swings its star in a small circle, and that wobble shows up as a rhythmic Doppler shift in the starlight. The wobble's size gives the planet's minimum mass. The discovery was announced in 2009 from La Silla 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.

Sister planets around BD-08 2823