Lêer:PIA17998-NASA-FirstExomoonCandidate-Or-StarPlanet-20140410.jpg

Oorspronklike lêer(4 200 × 2 363 piksels, lêergrootte: 912 KG, MIME-tipe: image/jpeg)

Hierdie lêer kom vanaf Wikimedia Commons en kan ook in ander projekte gebruik word. Die beskrywing op die lêer se inligtingsblad word hieronder weergegee.

Opsomming

Beskrywing
English: Moon or Planet? The 'Exomoon Hunt' Continues (Artist's Concept)

http://www.jpl.nasa.gov/spaceimages/details.php?id=pia17998

http://www.jpl.nasa.gov/news/news.php?release=2014-109

https://arxiv.org/abs/1312.3951

Researchers have detected the first "exomoon" candidate -- a moon orbiting a planet that lies outside our solar system. Using a technique called "microlensing," they observed what could be either a moon and a planet -- or a planet and a star. This artist's conception depicts the two possibilities, with the planet/moon pairing on the left, and star/planet on the right. If the moon scenario is true, the moon would weigh less than Earth, and the planet would be more massive than Jupiter.

The scientists can't confirm the results partly because microlensing events happen once, due to chance encounters. The events occur when a star or planet happens to pass in front of a more distant star, causing the distant star to brighten. If the passing object has a companion -- either a planet or moon -- it will alter the brightening effect. Once the event is over, it is possible to study the passing object on its own. But the results would still not be able to distinguish between a planet/moon duo and a faint star/planet. Both pairings would be too dim to be seen.

In the future, it may be possible to enlist the help of multiple telescopes to watch a lensing event as it occurs, and confirm the presence of exomoons.

More information about exoplanets and NASA's planet-finding program is at http://planetquest.jpl.nasa.gov.
Datum
Bron http://photojournal.jpl.nasa.gov/jpeg/PIA17998.jpg
Outeur NASA/JPL-Caltech

Lisensiëring

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

uitbeelding

Lêergeskiedenis

Klik op die datum/tyd om te sien hoe die lêer destyds gelyk het.

Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig17:35, 10 April 2014Duimnaelskets vir weergawe vanaf 17:35, 10 April 20144 200 × 2 363 (912 KG)DrbogdanUser created page with UploadWizard

Die volgende bladsy gebruik dié lêer:

Globale lêergebruik

Die volgende ander wiki's gebruik hierdie lêer: