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Etoile 1-20

	Mass	Distance
Gaia BH1	9.6 M☉	1561 ly
Gaia BH3 2MASS J19391872+1455542, LS II +14 13	32.7 M☉	1983 ly
V616 Monocerotis 1A 0620-00, INTREF 297, Nova Mon 1917, Nova Mon 1975, Mon X-1, V616 Mon	5.9 M☉	4680 ly
Gaia BH2 UCAC4 154-126202, 2MASS J13501675-5914203	8.9 M☉	4853 ly
V404 Cygni V404 Cyg, Nova Cygni 1938, Nova Cygni 1989, GS 2023+338, AAVSO 2020+33	9 M☉	10786 ly
4U 0614+091	-	10983 ly
Sagittarius A*	4100000 M☉	25635 ly

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Trous noirs nouvelles

Numerical simulations reveal outcomes of primordial black hole encounters with TOI 2796

7. 7. 2026

Étoiles | Exoplanètes | Trous noirs | TESS

Image: Numerical simulations reveal outcomes of primordial black hole encounters with TOI 2796

The TOI 2796 system, which is known to host a hot Jupiter—a massive gas giant planet orbiting very close to its parent star—faces potential disruption from encounters with primordial black holes. Primordial black holes are hypothetical objects thought to have formed in the very early universe, long before the first stars and galaxies emerged. Using numerical three-body simulations, the gravitational effects of such an encounter on the planetary system were modeled over a duration of 100 days...

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Research in Trous noirs

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

TOI-6649 659 ly		SOPHIE and TESS characterization of fourteen TESS Objects of Interest: nine planetary systems and five low-mass stellar companions 9. 10. 2026
TOI-2211 230 ly		Searching for hot water world candidates with CHEOPS: II. A low-density super-Earth orbiting the K dwarf TOI-2211 9. 10. 2026
HD 715 543 ly		HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit 7. 10. 2026
TOI-4079 1186 ly	+5	Migration and Evolution of giant ExoPlanets (MEEP). III. Twenty-Nine Giant Planets from the TESS Mission 5. 10. 2026
LSPM J0804+1116 82.6 ly		TOI-6981 b: a transiting sub-Neptune at the water ice line 30. 9. 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