TOI-270
Sign in to saveAlso known as TOI 270
TOI-270, also known as L 231-32, is a red dwarf star away in the constellation Pictor. It has about 39% the mass and 38% the radius of the Sun, and a temperature of about . TOI-270 hosts a system of three known exoplanets.
Wikidata facts
- Constellation
- Pictor
- Distance from Earth
- 22.453
- Radius
- 0.38
- Mass
- 0.4
Show 12 more facts
- apparent magnitude
- 11.62116
- radial velocity
- 26.10
- effective temperature
- 3659
- parallax
- 42
- epoch
- J2000.0
- catalog code
- Gaia DR3 4781196115469953024
- right ascension component of proper motion
- 89.2
- declination component of proper motion
- -263.4
- spectral class
- M3.0V
- declination
- -51.9562320481
- right ascension
- 68.41550005322
- surface gravity
- 22700
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Encyclopedic overview
2 sectionsContents
- Planetary system
- References
TOI-270, also known as L 231-32, is a red dwarf star away in the constellation Pictor. It has about 39% the mass and 38% the radius of the Sun, and a temperature of about . TOI-270 hosts a system of three known exoplanets.
==Planetary system== The three planets of TOI-270 were discovered in 2019 by the transit method with TESS. Their masses have since been measured by both Doppler spectroscopy and transit-timing variations. The innermost planet, TOI-270 b, is a volatile-rich super-Earth, while the two outer planets are mini-Neptunes. TOI-270 b and c orbit near a 5:3 resonance, while TOI-270 c and d orbit near a 2:1 resonance.
Excerpted from Wikipedia’s “TOI-270” article, available under the CC BY-SA 4.0 licence.