0 - 20 años luz
Esta base de datos de estrellas y planetas está en constante evolución y expansión a medida que hay nuevos datos astronómicos disponibles.
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Proxima Centauri d Location in the Milky Way Galaxy
Local Fluff of Local Bubble
Galactic Orion Arm Spur
26,000 LY from Galactic Center
Proxima Centauri d is 4.2421 Light Years Away from Earth
Unknown Planet Class
Sol
1 estrella
0.261 Earth Mass
Sol
6,420 Mile Diameter
2.708 Density
0.5424 g
Atmosphere ?
190 F Average Temp (Hot)
Proxima Centauri d Tilt Relative to the Plane of Proxima Centauri System
Proxima Centauri d Axial Tilt
Unknown
Sol
Proxima Centauri d Seasons
Unknown
Sol
Proxima Centauri d Atmosphere Composition and Pressure
Unknown
Unknown
Unknown
Unknown
Unknown
Unknown
Unknown Atmospheric Pressure
It is Unknown if Proxima Centauri d has an Atmosphere Due to Extreme Flares from its Star
Proxima Centauri d Weather
Clouds
Unknown
Wind
Unknown
Rain
Unknown
Lightning
Unknown
Proxima Centauri d Surface and Internal Composition
Crust
Silicate Rocks ?
Mantle
Soft Silicates ?
Outer Core
Liquid ?
Inner Core
Solid Iron ?
Solid Nickel ?
Surface Liquid
Unknown
Surface Ice
Unknown
Sub-Surface Liquid
Unknown
Sub-Surface Ice
Unknown
Proxima Centauri d Magnetic Radiation Shield
Unknown Gauss Magnetic Field Strength
It is Unknown if Proxima Centauri d has a Magnetic Field
Proxima Centauri d Similarity to Earth
Unknown
Sol
Proxima Centauri d Alien Life Chance
Unknown
Sol
Travel Time to Proxima Centauri d
Chemical Rocket Travel Time
55,046 Earth Years
Fission Rocket Travel Time
85.37 Earth Years
Fusion Rocket Travel Time
42.68 Earth Years
Laser Light Sail Travel Time
21.34 Earth Years
Top 5 Most Asked Questions About Proxima d
(Answered Simply)
What is Proxima Centauri d?
Proxima Centauri d is a small rocky exoplanet that orbits Proxima Centauri, the closest known star to our Solar System, located about 4.2 light years away. Scientists announced its discovery in 2022, making it one of the nearest known planets beyond our Solar System. It is believed to be much smaller than Earth, with roughly a quarter of Earth’s mass, making it one of the lightest exoplanets ever detected.
Proxima Centauri d orbits extremely close to its star, completing one full orbit in just over five days. Because of this tight orbit, the planet is likely very hot and exposed to intense stellar radiation, making Earth-like life unlikely. Even so, its close proximity to Earth makes Proxima Centauri d an important world for astronomers studying rocky planets around nearby stars.
Could Proxima Centauri d support life?
Proxima Centauri d is generally considered an unlikely place for Earth-like life, at least based on what scientists currently know. The planet orbits extremely close to its parent star, Proxima Centauri, completing a full orbit in just over five days. That close distance likely makes the planet very hot and exposes it to powerful bursts of stellar radiation, which could strip away an atmosphere and create harsh surface conditions.
However, scientists have not ruled out every possibility. If Proxima Centauri d has a thick atmosphere, a magnetic field, or unusual surface conditions, some regions could potentially be less extreme than expected. While it is not considered one of the best nearby candidates for life, studying Proxima Centauri d helps astronomers better understand how rocky planets around red dwarf stars might evolve, and whether any could eventually prove habitable.
How big is Proxima Centauri d compared to Earth?
Proxima Centauri d is much smaller than Earth. Scientists estimate it has at least about one-quarter of Earth’s mass, which makes it a sub-Earth planet, a rocky world smaller and lighter than our planet. That means Proxima Centauri d is likely closer in size to a small terrestrial planet than to a large world like Earth or Venus.
Because astronomers have only measured its minimum mass so far, its exact diameter and composition are still uncertain. If it is rocky like Earth, Proxima Centauri d could be somewhat larger than Mars but still noticeably smaller than Earth, making it one of the smallest known exoplanets discovered around a nearby star.
How far away is Proxima Centauri d from Earth?
Proxima Centauri d is about 4.2 light years away from Earth, making it one of the closest known exoplanets ever discovered. It orbits Proxima Centauri, the closest known star to our Solar System, located in the Alpha Centauri star system. In cosmic terms, that is incredibly close, our next-door neighbor on the scale of the galaxy.
Even though 4.2 light years is close astronomically, it is still an enormous distance for human travel using current technology. At the speed of today’s fastest spacecraft, reaching Proxima Centauri d would take thousands of years. Because of its proximity, however, it remains one of the best nearby worlds for astronomers to study as they search for more information about planets beyond our Solar System.
What is Proxima Centauri d like?
Proxima Centauri d is believed to be a small, rocky world orbiting extremely close to Proxima Centauri, the nearest star to Earth. It completes a full orbit in just a few days, which suggests a very tight, fast-moving orbit compared to anything in our Solar System. Because of this proximity, the planet is likely exposed to intense heat and strong stellar radiation.
If it has a solid surface, Proxima Centauri d would probably be a harsh and extreme environment, possibly tidally locked, meaning one side always faces its star while the other remains in constant darkness. One side could be extremely hot while the other is much colder. While its exact surface conditions are still unknown, it is generally considered an inhospitable world compared to Earth.
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