Light-year

Table columns:
Scale (ly)
Value
Item

Table rows:
cells: 10−9
40.4×10−9 ly
Reflected sunlight from the Moon's surface takes 1.2–1.3 seconds to travel the distance to the Earth's surface (travelling roughly 350000 to 400000 kilometres).
cells: 10−6
15.8×10−6 ly
One astronomical unit (the distance from the Sun to the Earth). It takes approximately 499 seconds (8.32 minutes) for light to travel this distance.[25]
cells: 127×10−6 ly
The Huygens probe lands on Titan off Saturn and transmits images from its surface, 1.2 billion kilometres from Earth.
cells: 504×10−6 ly
New Horizons encounters Pluto at a distance 4.7 billion kilometres, and the communication takes 4 hours 25 minutes to reach Earth.
cells: 10−3
2.04×10−3 ly
The most distant space probe, Voyager 1, was about 18 light-hours away from the Earth as of October 2014[update].[26] It will take about 17500 years to reach one light-year (1.0×100 ly) at its current speed of about 17 km/s (38000 mph) relative to the Sun. On September 12, 2013, NASA scientists announced that Voyager 1 had entered the interstellar medium of space on August 25, 2012, becoming the first manmade object to leave the Solar System.[27]
cells: 100
1.6×100 ly
The Oort cloud is approximately two light-years in diameter. Its inner boundary is speculated to be at 50000 au, with its outer edge at 100000 au.
cells: 2.0×100 ly
Maximum extent of the Sun's gravitational dominance (Hill sphere/Roche sphere, 125000 au). Beyond this is the deep ex-solar gravitational interstellar medium.
cells: 4.22×100 ly
The nearest known star (other than the Sun), Proxima Centauri, is about 4.22 light-years away.[28][29]
cells: 8.60×100 ly
Sirius, the brightest star of the night sky. Twice as massive and 25 times more luminous than the Sun, it outshines more luminous stars due to its relative proximity.
cells: 11.90×100 ly
HD 10700 e, an extrasolar candidate for a habitable planet. 6.6 times as massive as the earth, it is in the middle of the habitable zone of star Tau Ceti.[30][31]
cells: 20.5×100 ly
Gliese 581, a red-dwarf star with several detectable exoplanets.
cells: 310×100 ly
Canopus, second in brightness in the terrestrial sky only to Sirius, a type A9 bright giant 10700 times more luminous than the Sun.
cells: 103
3×103 ly
A0620-00, the nearest known black hole, is about 3000 light-years away.
cells: 26×103 ly
The centre of the Milky Way is about 26000 light-years away.[32][33]
cells: 100×103 ly
The Milky Way is about 100000 light-years across.
cells: 165×103 ly
R136a1, in the Large Magellanic Cloud, the most luminous star known at 8.7 million times the luminosity of the Sun, has an apparent magnitude 12.77, just brighter than 3C 273.
cells: 106
2.5×106 ly
The Andromeda Galaxy is approximately 2.5 million light-years away.
cells: 3×106 ly
The Triangulum Galaxy (M33), at about 3 million light-years away, is the most distant object visible to the naked eye.
cells: 59×106 ly
The nearest large galaxy cluster, the Virgo Cluster, is about 59 million light-years away.
cells: 150×106 – 250×106 ly
The Great Attractor lies at a distance of somewhere between 150 and 250 million light-years (the latter being the most recent estimate).
cells: 109
1.2×109 ly
The Sloan Great Wall (not to be confused with Great Wall and Her–CrB GW) has been measured to be approximately one billion light-years distant.
cells: 2.4×109 ly
3C 273, optically the brightest quasar, of apparent magnitude 12.9, just dimmer than R136a1. 3C 273 is about 2.4 billion light-years away.
cells: 45.7×109 ly
The comoving distance from the Earth to the edge of the visible universe is about 45.7 billion light-years in any direction; this is the comoving radius of the observable universe. This is larger than the age of the universe dictated by the cosmic background radiation; see here for why this is possible.

Questions about this table:
originalText: how many lightyears is the sun from earth
answer: answerTexts: 15.8×10−6 ly