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Liste des Naines brunes

        
    
Plus à propos Naines brunes
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Etoile 221-240
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Nom de l étoile Mass Distance

2MASS J1331-0116
2MASS J13314894-0116500
L6V - 48.5 ly

OGLE BLG-ECL-314964
- 48.6 ly

LSPM J1048+0111
L1 - 49 ly

2MASS J0742+2055
2MASS J07420130+2055198
T5 - 49 ly

2MASS J2137+0808
2MASS J21373742+0808463
L5 - 49.1 ly

2MASS J1203+0015
2MASS J12035812+0015500
L5.0V - 49.2 ly

WISE 1738+2732
WISE J173835.53+273259.0, WISEPA J1738+2732, WISEP J173835.52+273258.9
Y0 0.02 M☉ 49.4 ly

Gaia EDR3 5826576346314528768
- 49.7 ly

2MASS J1632+1904
2MASS J16322911+1904407
L8V - 49.7 ly

2MASS J0045+1634
2MASS J00452143+1634446
L2beta - 49.9 ly

2MASSI J0859-1949
2MASSI J0859254-194926
L8 - 49.9 ly

WISE 0458+6434 B
T9.5 0.01 M☉ 50 ly

WISE 1534-1043
WISEA J153429.75-104303.3, CWISE J153429.19-104318.9, WISE J1534-1043
Y0 - 50.2 ly

WISEA J153429.75-104303.3
CWISE J153429.19-104318.9, WISE J1534-1043
Y0 - 50.2 ly

WISE J1042-3842
WISE J104245.23-384238.3
T8.5 - 50.3 ly

2MASS J2057-0252
2MASS J20575409-0252302
L1 - 50.4 ly

WISE 2344+1034
T9 - 50.4 ly

2MASS J0107+0041
2MASS J01075242+0041563
L8 - 50.9 ly

Gliese 758 B
T9 0.03 M☉ 50.9 ly

2MASS J1051+5613
2MASS J10511900+5613086
L2 - 51 ly
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Naines brunes nouvelles

Patchy water clouds and chemical changes observed on brown dwarf WISE 0855
icon17. 10. 2026
iconÉtoiles | 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
icon14. 10. 2026
iconÉtoiles | 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
icon9. 10. 2026
iconÉtoiles | 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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study iconResearch in Naines brunes

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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.
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exoplanet iconStellarGuide: Étoiles

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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.
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