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Liste des Naines brunes

Plus à propos Naines brunes

	Mass	Distance
2MASS J02062493+2640237	L9pec	-	62.6 ly
Gaia DR3 2020935705110296448		-	62.6 ly
Gaia DR3 4116553809180160384		-	62.7 ly
Gaia DR3 4310777796489116800		-	62.7 ly
Gaia DR3 2021182304939695104		-	62.7 ly
Gaia DR3 2936126887218756736		-	62.9 ly
2MASS J02132880+4444453	L1.5	-	63.1 ly
Gaia DR3 4041053231822960128		-	63.1 ly
Gaia DR3 5972124644679705728		-	63.3 ly
Gaia DR3 4287033293110195456		-	63.3 ly
2MASS J10440942+0429376	L7	-	63.6 ly
SIPS J0641-4322	L2.4:V	-	63.7 ly
2MASS J07542987+7909546	T2p?	-	63.8 ly
DENIS J174534.6-164053	L1.5	-	64.1 ly
Gaia DR3 5824888595970910336 Gaia DR3 5824888595970910336		-	64.1 ly
Gaia DR3 2026640967853712000		-	64.1 ly
Gaia DR2 3330473222213987072		-	64.2 ly
Gaia DR3 4109528651372564096		-	64.2 ly
2MASS J1706-1314 2MASS J17065487-1314396	L5pec	-	64.2 ly
2MASS J0014-4844 2MASS J00145575-4844171	L2.5	-	64.2 ly

Naines brunes nouvelles

Patchy water clouds and chemical changes observed on brown dwarf WISE 0855

17. 10. 2026

Étoiles | Naines brunes | Atmosphères planétaire

Image: Patchy water clouds and chemical changes observed on brown dwarf WISE 0855

WISE 0855 represents the coldest known brown dwarf, an object too large to be a planet but too small to sustain the nuclear fusion that powers stars. With a temperature of roughly 265 Kelvin, it is cold enough to host complex atmospheric phenomena similar to those seen on gas giant planets in our solar system. Observations reveal that this object is not uniform but features patchy water clouds distributed throughout its atmosphere, which influence its light patterns over time. To study this, ...

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Massive brown dwarf HD 203771 b confirmed in eccentric orbit around orange dwarf

14. 10. 2026

Étoiles | Exoplanètes | Naine orange | Naines brune

Image: Massive brown dwarf HD 203771 b confirmed in eccentric orbit around orange dwarf

Massive brown dwarf HD 203771 b confirmed in an eccentric orbit around an orange dwarf star. New mass measurements place the companion at approximately 70 times the mass of Jupiter, revealing insights into how brown dwarfs migrate inward over time....

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Silicate clouds and gaseous silicon monoxide identified in three early L-dwarf objects

9. 10. 2026

Étoiles | Naines brunes | Atmosphères planétaire

Image: Silicate clouds and gaseous silicon monoxide identified in three early L-dwarf objects

Analysis of three early L-dwarfs, HD 89744 B, Gliese 1048 B, and LSPM J0632+5053 B, reveals gaseous silicon monoxide and silicate clouds in their atmospheres. JWST data confirms these mineral clouds form as silicon gas condenses, mimicking processes in giant planets....

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Research in Naines brunes

Parcourez les dernières études scientifiques sur les étoiles et les exoplanètes de notre galaxie. Découvrez les dernières recherches en astrophysique et en astronomie stellaire.

Les recherches en cours

	WISE 0855-0714 7.3 ly			Water Cloud and Chemical Modulations in the Coldest Brown Dwarf 17. 10. 2026
	WASP 94 687 ly			A New Method for Constraining 3D Exoplanet Atmospheres: Application to WASP-94A b's Panchromatic Spectrum 16. 10. 2026
	KELT-2 439 ly			Emission spectroscopy of KELT-2A b with Gemini-North/IGRINS-2: hints of a stellar C/O ratio and sub-stellar metallicity 15. 10. 2026
	TOI-2257 189 ly			The Limits of Tidal Circularization and Atmospheric Escape for Mini-Neptunes and Super-Earths: The Case of TOI-2257 b 15. 10. 2026
	KELT-18 1032 ly			High-resolution transmission spectroscopy of KELT-18b Metastable helium detection at 1083 nm 14. 10. 2026

Publications plus anciennes

Frequently Asked Questions about nearby stars

What is the nearest star?

Nearest star is Proxima Centauri, located approximately 4.24 light-years (1.30 parsecs) from the Sun. It is part of the Alpha Centauri star system, which also includes Alpha Centauri A and Alpha Centauri B.

What are the nearest stars to Earth?

Nearest stars to Earth include the Alpha Centauri system (Alpha Centauri A, Alpha Centauri B, and Proxima Centauri), Barnard's Star, and Wolf 359. There are also brown dwarfs Luhman 16 and WISE 0855−0714.

What is the solar neighborhood?

Solar neighborhood (also Local Interstellar Cloud) is the region of interstellar space that surrounds the Sun with diameter about 15 light years. Stellar Catalog database includes all stars contained within this region.

How do astronomers measure distances to stars?

Astronomers use methods like parallax, standard candles, and redshift to measure distances to stars. Parallax is especially useful for nearby stars in our solar neighborhood, while other techniques help map the universe beyond.

Are there any exoplanets orbiting the nearest stars?

Yes, several exoplanets have been discovered orbiting the nearest stars. For example, Proxima Centauri has an exoplanet called Proxima Centauri b, which is located in the star's habitable zone and is the closest known exoplanet to Earth.

Why are the nearest stars important for astronomy and physics?

The nearest stars provide valuable laboratories for studying stellar evolution, space environments, and the fundamental physics of stars. Observing these stars helps astronomers understand the structure of our galaxy and the broader universe.

StellarGuide: Étoiles

Étoiles

Les étoiles sont d’immenses sphères de gaz chaud qui brillent en produisant de l’énergie grâce à la fusion nucléaire dans leur noyau. La plupart des étoiles sont composées principalement d’hydrogène et d’hélium. Au centre d’une étoile, la pression et la température élevées provoquent la fusion des atomes d’hydrogène en hélium, libérant ainsi une énorme quantité d’énergie sous forme de lumière et de chaleur.

More about Étoiles

Random terms

Position de la étoile Luminosité Température des étoiles Masse stellaire Taille de l´étoile L´âge des étoiles