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Alien Worlds

Science-fiction

Voici quelques illustrations de paysages extraterrestres. De nouvelles images sont régulièrement ajoutées à cette collection. En passant la souris sur l'image, vous afficherez un commentaire additionnel. Consultez également les galeries Solar System, Terragen, Illustrations et Infographies pour d'autres illustrations.

Science fiction

Here are some illustrations of alien worlds. New images are regularly added to this collection. Passing the mouse over the image, you will display an additional commentary.

See also the galleries Solar System, Terragen, Illustrations and Computer Graphics for additional renderings.

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Thierry.

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Exoplanets - Virtual Worlds - Bioastronomy

Exoplanets

Hot Jupiter KELT-9b (HD 195689b)

Conjunctions in RXJ1131-1231

Hot Jupiter KELT-9b

The first exoplanet ever discovered. A G2 star 1.4 Rs with 1 exoplanet of 0.5J at only 0.05 AU. So close to the sun it should display a faint tail against the dark sky due to the evaporation of its atmosphere.

G0 star with 1 exoplanet of 0.7J at 0.045 AU loosing its atmosphere due to the heat (1200°C).

51 Pegasi b Evaporating

Hot Jupiter WASP-33b

Osiris, HD 209458B Pegasi

G star 1.3 Rs with 3 bodies : 1 exoplanet 1.15J at 0.004 AU and 1 stellar binary system (M and K star at 12 AU).

Tatooine alias HD 188753 Cygni

Gliese 436b

Kepler-90 and its 8 exoplanets

Tau Ceti

G star surrounded with a dust disk and planetesimals.

Transits in front of Trappist-1

Trappist-1

Disk of Debris of Tau Ceti

Alpha Centauri is a triple star system including a G2 star (A) of 1.09 Ms around which orbit a K1 star (B)of 0.9 Ms escorted by an exoplanet of 1.13 earth-mass at a distance of 6 million km only with a revolution in 3.24 days. Proxima Centauri, a red dward of M5 class and 0.1 Ms orbits at 13000 AU of star A. Discovered in 2016, Proxima b is >1.3 earth masses and is orbiting at 7 million km from its red dwarf star. The duration of its revolution is 11 days and its rotation is synchronous (it shows always the same side to its star).

Discovered in 2016, Proxima b is >1.3 earth masses and is orbiting at 7 million km from its red dwarf star. The duration of its revolution is 11 days and its rotation is synchronous (it shows always the same side to its star).

Alpha Centauri Bb (to discover)

Twilight on  Proxima b

Proxima b orbiting Proxima Centauri

F7 V star 1.6 Rs with 1 exoplanet of 3.9J at 0.046 AU.

The first exoplanet ever discovered. A G2 star 1.4 Rs with 1 exoplanet of 0.5J at only 0.05 AU.

HAT P-11b

Tau Bootii

51 Pegasi b

GJ1214b is about 2.7 times Earth’s diameter and weighs almost seven times as much. It orbits a red-dwarf star every 38 hours at a distance of 2 million kilometres, giving it an estimated temperature of 230 degrees Celsius. It orbits in 38 hours at 2 million km around a red dwarf star of class M4.5 GJ1214b is about 2.7 times Earth’s diameter and weighs almost seven times as much. It orbits a red-dwarf star every 38 hours at a distance of 2 million kilometres, giving it an estimated temperature of 230 degrees Celsius. It orbits in 38 hours at 2 million km around a red dwarf star of class M4.5.

GJ 1214b "waterworld"

GJ 1214b "waterworld"

Brown dwarf CFBDSIR J214947.2

G 2.5 star 1.2 Rs with 1 exoplanet of 1.7J at 1.7 AU.

It includes 7 exoplanets ! The system is located at 127 l.yw. in Hydra. The star is of solar type (G) and shines at visual magnitude 7.33.

16 Cygni B

GJ 504b alias 59 Virginis b

HD 10180

Gliese 581 system in Libra. It contains a red dwarf star around which orbit 3 exoplanets. Gliese 581c show surface temperature between -3°C and +40°C. Its mass is 5 M-earth, its radius 1.5 R-earth. This is the first earth-like exoplanet discovered in the habitable zone.

V391 Pegasi b

Upsilon Andromedae

Gliese 581c

Kepler 22b

Kepler 22b

Kepler 22b

G4 star with 3 exoplanets: 0.6J at 0.5 AU, 0.6J at 1.6 AU, 1.2J at 2.5 AU.

Pulsar with 4 exoplanets: 0.02x Earth at 0.1 AU, 4x Earth at 0.4 AU, 3 earth at 0.5 AU, 0.0004x Earth at 2.7 AU.

Binary pulsar associated with a white dwarf star of 0.34 Ms at 1 UA, 1 exoplanet 2.5J at 23 AU, system located in global cluster M4 at 7200 l.y.

HD 37124 Tauri

PSR 1257+12 Virgo

Methulselah, PSR B1620-26 Sco

G3 star, 4 exoplanets: 14x Earth at 0.09 AU, 0.52J at 0.92 AU, 1.7J at 1.5 AU, 3.1J at 4.17 AU.

55 Cancri and its Asteroid Belt

Transits in Front of 55 Cancri

Mu Arae

K2 dwarf star 0.8 Rs with 2 exoplanets: 0.9J at 3.3 AU, 0.1J at 40AU and an asteroid belt at 30 AU (KBO).

K2V star with 1 exoplanet 1.6 Mj at 2.UA. The host star, Errai, will be our "polar star" in the future.

Epsilon Eridani

Errai (g Ceph) and Gamma Cephei B

G0 star with 2 exoplanets: 2.5J at 2.1 AU, 0.8J at 3.7 AU, ring is optional.

Pollux, alias HD 62509 is a KOIII star with 1 exoplanet of 2.9 J at 1.69 AU

47 Ursa Majoris

Pollux, b Geminorum

A giant rocky exoplanet

M2 red dwarf star 0.4 Rs, 2 exoplanets: 0.9J at 2 AU, 1.6J at 10 AU.

Red dwarf star and a 17 J object at 200 AU (exoplanet or another red dwarf). The small moon displayed is speculative

K2 star 11 Rs and 1 Ms with 1 exoplanet of 8.6J at 1.3 AU.

Lalande 21185 Ursa Majoris

CHXR 73B Cham

Iota Draconis

K0 star 0.85 Rs, 1 exoplanet of 0.6J but as large as Jupiter at 0.04 AU.

M4 star, 3 exoplanets: 7x earth at 0.02 AU, 0.5J at 0.1 AU, 7J at 0.2 AU.

Star A5 with 1 exoplanet of 2J at 8 AU, an asteroid belt at 24 AU, a cometary disk  at 40 AU and maybe an exoplanet of 13J at 53 AU (not confirmed).

TrES-1 Lyrae

Gliese 876 Aquarii

Bêta Pictoris

First "small" and presumably rocky/icy exoplanet discovered, 5.5 earth masses orbiting at 3 AU of a M-class red dwarf of 0.2 Ms. This exoplanet could have had oceans billions years ago.

Host star red dwarf, exoplanet of 2.6 J, star located at 19000 l.y in Sagittarius

OGLE-2005-BLG-390Lb

OGLE-2003-BLG-235Lb in Sagittarius

Virtual Worlds

Rings of Saturn seen in perspective

Grazing light scattering through the rings surrounding a gazeous exoplanet.

Over Rings

A Gazeous Ringed Exoplanet

Shadow of Rings

Binary system

Planetary System

Born from Dust

Stellar Conjunction

City Lights

The Evening Comet

Waterworld

Blue World

Around the Nebula

On the Night Side

End of a World

Origins

Bioastronomy

 

 
 

Signs of Life

 

Quasar surrounded with a tilted accretion disk.

Desintegration

SETI

Quasar Space Station

Alien Twilight

Extraterrestrial Macroentity

Migration

Close Encounter

Radioastronomy

ETA in Insertion Orbit

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