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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, Portraits, 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, Portraits, Illustrations and Computer Graphics for additional renderings.

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Thierry.

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Exoplanets - Virtual Worlds - Bioastronomy

Exoplanets
   
 

Remarkable Exoplanets

  

J1407b

TOI 1452 b

Gliese 581 c

Transits in front of Trappist-1

Trappist-1 b, c, d

Trappist-1 

Destination Proxima b Centauri

(mockup by Mark Rademaker)

Proxima c Centauri

Upsilon Andromedae
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 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.

Proxima b orbiting Proxima Centauri

Twilight on Proxima b

Alpha Centauri Bb (to discover)
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 1214 b "waterworld" (from space and at sea level)

Hot Neptune Gliese 436 b, Behemoth

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.

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

51 Pegasi b (evaporating and transiting)

Hot Jupiter KELT-9 b (HD 195689b)
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 Ab Cygni

WASP 121 b

WASP 189 (in UV and dark)

Kepler 78 b

HIP 41378 f

Super-Earth Gliese 251 b

V391 Pegasi b

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

Kepler 90 and its 8 Exoplanets

Tau Bootii

G star surrounded with a dust disk and planetesimals.

Tau Ceti (eclipsing and debris)

HAT P-11 b

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

Hot Jupiter WASP-33 b

Hot Jupiter KELT-9 b

Hot Jupiter KELT-9 b (HD 195689b)

Kepler 22 b with a Moon

The Face of Kepler 22 b

Kepler 22 b

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.

Brown dwarf CFBDSIR J214947.2

PSR 1257+12 Virgo

Methulselah, PSR B1620-26 Sco

16 Cygni Bb

55 Cancri and its Asteroid Belt

Transits in Front of 55 Cancri

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

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.

GJ 504 b alias 59 Virginis b

HD 37124 Tauri

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

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.

47 Ursae Majoris

Pollux, b Geminorum

HD 10180

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-390L b

OGLE-2003-BLG-235L b in Sagittarius

Virtual Worlds
 

A Ringed Rocky Exoplanet

  

A Giant Rocky Exoplanet

Grazing light scattering through the rings surrounding a gazeous exoplanet.

A Giant Gazeous Exoplanet

A Gazeous Ringed Exoplanet

Shadow and Light

A Superhabitable Earth II

Superhabitable Planet

Orbiting a dK star

A Near Planetary System

Orbiting a dK star

Exoplanet Orbiting a G-star

Rings of Saturn seen in perspective

Binary system

 Born from Dust

Over Rings

Conjunctions in a distant galaxy

Planetary System

Exoplanet Accreting Planetesimals

Stellar Conjunction

City Lights

The Evening Comet

Waterworld

Blue Night

Around the Nebula

On the Night Side

End of a World

Origins

Bioastronomy
 

Quasar surrounded with a tilted accretion disk.
Cosmic DNA  

Space Station "Quasar"

Extraterrestrial Macroentity

Signs of Life

SETI

Alien Twilight

Desintegration

Migration

Close Encounter

Radioastronomy

ETA in Insertion Orbit

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