Discovery | |
---|---|
Discovered by | NGTS (Next-Generation Transit Survey) |
Discovery date | January 2021 |
Transit method | |
Designations | |
Named after | NGTS (Next-Generation Transit Survey) |
2MASS J21540423-3822388 and TIC 197643976 | |
Orbital characteristics | |
3.54 days | |
Physical characteristics | |
Mean radius | 0.444 ± 0.030 R Jupiter |
Mass | 0.09 Jovian masses |
NGTS-14Ab or 2MASS J21540423-3822388 is a Neptune-sized (Sub-Jovian) exoplanet that was discovered by NGTS (Next-Generation Transit Survey) and is located in the NGTS-14 planetary system. The discovery was announced in January 2021. [1] [2] The Orbital period of NGTS-14Ab is around 3.54 days. [3] The age of NGTS-14Ab is approximately 5.9 billion years old. The exoplanet is around 0.44 Jovian radii. [4]
The Hungarian Automated Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize extrasolar planets using the transit method. This network is used also to find and follow bright variable stars. The network is maintained by the Center for Astrophysics | Harvard & Smithsonian.
WASP-11/HAT-P-10 is a binary star. It is a primary main-sequence orange dwarf star. Secondary is M-dwarf with a projected separation of 42 AU. The system is located about 424 light-years away in the constellation Aries.
The Next-Generation Transit Survey (NGTS) is a ground-based robotic search for exoplanets. The facility is located at Paranal Observatory in the Atacama desert in northern Chile, about 2 km from ESO's Very Large Telescope and 0.5 km from the VISTA Survey Telescope. Science operations began in early 2015. The astronomical survey is managed by a consortium of seven European universities and other academic institutions from Chile, Germany, Switzerland, and the United Kingdom. Prototypes of the array were tested in 2009 and 2010 on La Palma, and from 2012 to 2014 at Geneva Observatory.
HIP 41378 f is an exoplanet orbiting around the F-type star HIP 41378. It has an anomalously large radius for a planet of its size and temperature, therefore the radius may actually be that of an optically thick ring system. It is located within the optimistic habitable zone of its parent star. No atmospheric signatures were found as in 2022, further reinforcing the hypothesis of opaque circumplanetary rings.
Kepler-1625 is a 14th-magnitude solar-mass star located in the constellation of Cygnus approximately 8,000 light years away. Its mass is within 5% of that of the Sun, but its radius is approximately 70% larger reflecting its more evolved state. A candidate gas giant exoplanet was detected by the Kepler Mission around the star in 2015, which was later validated as a likely real planet to >99% confidence in 2016. In 2018, the Hunt for Exomoons with Kepler project reported that this exoplanet has evidence for a Neptune-sized exomoon around it, based on observations from NASA’s Kepler Mission. Subsequent observations by the larger Hubble Space Telescope provided compounding evidence for a Neptune-sized satellite, with an on-going debate about the reality of this exomoon candidate.
NGTS-1 is a solitary red dwarf located in the constellation Columba (constellation). With an apparent magnitude of 15.52, it requires a powerful telescope to be seen. The star is located 716 light years away from the Solar System, but is drifting away with a high radial velocity of 97.2 km/s.
NGTS-13b is an exoplanet that was discovered by NGTS. It takes 4.12 days to orbit its host star and its discovery was announced in January 2021.