G2V main-sequence star
Complete star-system information
Solar System
The Sun and the worlds directly observed by spacecraft, telescopes and Earth-based instruments.
One-way light time: Minutes to hours across the planetary region
0 catalog candidates flagged for habitability discussion.
Before any scientific processing or response delay.
System architecture
The Sun
System travel calculation
How long to reach Solar System?
Travel times inside the Solar System depend on the chosen world, planetary alignment, launch energy and gravity assists. Open an individual world for its detailed distance and mission comparisons.
Venus and Mars can be reached on month-scale transfers; Mercury often needs repeated gravity assists.
Jupiter and Saturn missions commonly require multi-year transfers.
Voyager 2 needed roughly 8.5 years to Uranus and 12 years to Neptune.
Catalog worlds in this system
10 listed worlds
Public world review
Earth
The only known world with a global biosphere and billions of current residents.
Inner rocky world
Mercury
A cratered world with extreme day-night temperature swings and almost no atmosphere.
Runaway greenhouse world
Venus
A superheated planet with crushing pressure and a dense carbon-dioxide atmosphere.
Cold desert world
Mars
A dusty, cold planet with polar ice, canyons, volcanoes and a thin atmosphere.
Gas giant
Jupiter
A banded gas giant with storms, powerful radiation belts and a huge family of moons.
Ringed gas giant
Saturn
An iconic giant planet surrounded by bright rings and a diverse family of moons.
Ice giant
Uranus
A cold blue-green giant with an unusual tilt and a remote outer-system location.
Windy ice giant
Neptune
A deep-blue outer planet known for fast winds and enormous distance from the Sun.
Icy moon
Europa
A bright icy moon with strong evidence for an ocean beneath its frozen crust.
Atmospheric moon
Titan
Saturn's largest moon, with a thick atmosphere and lakes of hydrocarbons.