Enanas rojas

Las enanas rojas son estrellas pequeñas y frías que representan más del 70% de nuestra galaxia. Si el Sol fuera un faro brillante, una enana roja sería como una vela tenue con una temperatura de unos 3.000 K. Tienen solo el 8-50% de la masa del Sol, pero mediante convección total, mezclan su combustible como en un gran caldero y queman hidrógeno muy lentamente. 

Mientras que el Sol morirá en miles de millones de años, estos "maratonistas espaciales" pueden brillar durante billones de años. Suelen tener planetas, pero debido a su bajo brillo, estos mundos deben estar mucho más cerca que la Tierra del Sol para no congelarse, exponiéndolos a fuertes erupciones.

Percentage of Enanas rojas within 97.4 años luz: 71.92 % (6612 from 9194 stars)
Average masa of Enanas rojas: 7.5-50% solar mass
Average radius of Enanas rojas: 10-60% solar radius
Average temperatura of Enanas rojas: 2400-3900 K

Enanas rojas

Enanas rojas

		Masa	Distancia
Proxima Centauri Alpha Centauri C, CCDM J14396-6050C, GCTP 3278.00, Gliese 551, HIP 70890, LFT 1110, LHS 49, LPM 526, LTT 5721, NLTT 37460, V645 Centauri	M5.5 Ve	0.12 M☉	4.2 ly
Barnard star GCTP 4098.00, Gl 140-024, Gliese 699, GJ 699, HIC 87937, HIP 87937, LFT 1385, LHS 57, LTT 15309, Munich 15040, Proxima Ophiuchi, V2500 Ophiuchi, Velox Barnardi, Vyssotsky 799	M4 V	0.14 M☉	6 ly
Wolf 359 CN Leonis, Gliese 406, GJ 406, G 045-020, LTT 12923, LFT 750, LHS 36, GCTP 2553	M6.5 Ve	0.11 M☉	7.9 ly
Lalande 21185 BD+36 2147, G 119-052, Gliese 411, GJ 411, HD 95735, HIP 54035, LFT 756, LHS 37, LTT 12960, MCC 594, PLX 2576, SAO 62377, NLTT 26105, NSV 18593	M2+V	0.46 M☉	8.3 ly
Luyten 726-8 B LHS 10, G 272-61B	M6 V	0.12 M☉	8.7 ly

Enanas rojas

Aligned orbits found in double M dwarf system and trends across planets, brown dwarfs, and binaries

12. 4. 2026

Estrellas | Exoplanetas | Enanas roj

Image: Aligned orbits found in double M dwarf system and trends across planets, brown dwarfs, and binaries

A new study has measured the alignment between the spin of an M dwarf star and the orbit of its very-low-mass stellar companion, marking the first such measurement for a double M dwarf system. Using the Rossiter-McLaughlin effect, researchers found that the two stars are well aligned, meaning the companion orbits in the same direction as the primary star spins. This suggests the system either formed aligned or was later realigned by tidal forces. The study also compared the alignment, or obli...

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The newly discovered Earth-like exoplanet TOI-4552 b has a year that lasts only 8 hours

21. 3. 2026

Estrellas | Exoplanetas | TESS | Enanas roj

Image: The newly discovered Earth-like exoplanet TOI-4552 b has a year that lasts only 8 hours

TOI-4552 b, a dense Earth-sized planet with a 0.3-day orbit around a quiet red dwarf, is confirmed and stands out as a top target for JWST studies....

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JWST reveals a low-metallicity atmosphere for giant planet TOI-5293 A b around a variable red dwarf

18. 3. 2026

Estrellas | Exoplanetas | Telescopio espacial James Webb | Atmósferas planetarias | Enanas roj

Image: JWST reveals a low-metallicity atmosphere for giant planet TOI-5293 A b around a variable red dwarf

JWST reveals TOI-5293 A b’s low-metallicity atmosphere and inflated radius, highlighting the challenges of studying planets around variable red dwarfs....

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TOI-672 b is confirmed as a hot super-Neptune, shedding light on the Neptunian desert around red dwarfs

16. 3. 2026

Estrellas | Exoplanetas | TESS | Enanas roj

Image: TOI-672 b is confirmed as a hot super-Neptune, shedding light on the Neptunian desert around red dwarfs

TOI-672 b, a hot super-Neptune orbiting a red dwarf, is confirmed and helps refine our understanding of the Neptunian desert’s boundaries around different stars....

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Earth-sized planet found orbiting a nearby red dwarf LP 466-156 (TOI-4616)

12. 3. 2026

Estrellas | Exoplanetas | TESS | Enanas roj

Image: Earth-sized planet found orbiting a nearby red dwarf LP 466-156 (TOI-4616)

TOI-4616 b, an Earth-sized planet orbiting a nearby red dwarf, has been confirmed and offers a valuable target for studying rocky worlds and their atmospheres....

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Research in Enanas rojas

Explore los últimos estudios científicos sobre estrellas y exoplanetas en nuestra galaxia. Descubra las últimas investigaciones sobre astrofísica y astronomía estelar.

La investigación actual

	TOI 5375 397 ly			An Aligned Very-Low-Mass Star Orbiting an M dwarf and Obliquity Patterns Across Giant Planets, Brown Dwarfs, and Binary Stars 12. 4. 2026
	UPM J1738-4738 89.2 ly			TOI-4552 b: A new ultra-short period rocky world revealed by NIRPS and TESS 21. 3. 2026
	TOI 5293 529 ly			GEMS JWST: A sub-Solar metallicity atmosphere for giant planet TOI-5293Ab orbiting a rapidly changing M-dwarf 18. 3. 2026
	TOI 672 218 ly			Confirmation of the hot super-Neptune TOI-672 b with NIRPS and HARPS and Insights into the Neptunian desert around M dwarfs 16. 3. 2026
	LP 466-156 91.8 ly			TOI-4616 b: a benchmark Earth-sized planet transiting a nearby M4 dwarf 12. 3. 2026

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