Comparison of TRAPPIST-1 to the Solar System · NASA · NASA — public domain
TRAPPIST-1 h
Sign in to saveAlso known as TRAPPIST-1h
TRAPPIST-1h is an exoplanet orbiting around the ultra-cool dwarf star TRAPPIST-1, located away from Earth in the constellation Aquarius. It was one of four new exoplanets to be discovered orbiting the star in 2017 using observations from the Spitzer Space Telescope. In the following years, more studies were able to refine its physical parameters.
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 41 light-years
- Coordinates
- RA 346.6224° · Dec -5.0414°
via SIMBAD · CDS Strasbourg
Key facts
- Planet.name
- TRAPPIST-1h
- Planet.image
- TRAPPIST-1h artist impression 2018.png
- Planet.caption
- Artist's impression of TRAPPIST-1h
- Planet.discoverer
- Michaël Gillon et al.
- Planet.discovery_site
- Spitzer Space Telescope
- Planet.discovered
- 22 February 2017
- Planet.discovery_method
- Transit
- Planet.apsis
- astron
- Planet.star
- TRAPPIST-1
- Planet.surface_grav
- g
- Planet.single_temperature
- Teq: ()
via Wikipedia infobox
Exoplanet data
- Host star
- TRAPPIST-1
- Discovered
- 2017
- Discovered by
- Multiple Observatories
- Orbital period
- 18.77 days
- Radius
- 0.76 × Earth
- Mass
- 0.33 × Earth
- Equilibrium temp
- 171.70 K
- Distance
- 12.43 pc
via NASA Exoplanet Archive
Wikidata facts
- Constellation
- Aquarius
- Parent body
- TRAPPIST-1
- Radius
- 0.0674
- Mass
- 0.001041
- Orbital period
- 20
- Image
- TRAPPIST-1h artist impression 2018.png
Show 14 more facts
- time of discovery or invention
- 2016-05-00
- discovery method
- transit method
- semi-major axis of an orbit
- 0.063
- orbital inclination
- 89.8
- right ascension
- 346.62236835536920
- declination
- -5.04139769179028
- epoch
- J2000.0
- right ascension component of proper motion
- 930.879
- declination component of proper motion
- -479.403
- parallax
- 80.4512
- orbital eccentricity
- 0.00567
- argument of periapsis
- 338.92
- Commons category
- TRAPPIST-1 h
- catalog code
- TIC 278892590h
via Wikidata · CC0
~3 min read
Encyclopedic overview
7 sectionsContents
- Physical characteristics
- Mass, radius, and temperature
- Host star
- Orbit
- Stable liquid water
- See also
- References
TRAPPIST-1h is an exoplanet orbiting around the ultra-cool dwarf star TRAPPIST-1, located away from Earth in the constellation Aquarius. It was one of four new exoplanets to be discovered orbiting the star in 2017 using observations from the Spitzer Space Telescope. In the following years, more studies were able to refine its physical parameters.
The outermost known planet in its system, it is roughly one third the mass of Earth, and about 76% as large. Its relatively low density indicates that it is likely water-rich, like several other planets in the system.
Excerpted from Wikipedia’s “TRAPPIST-1 h” article, available under the CC BY-SA 4.0 licence.