2021 Exoplanet Archive News

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For previous years' news, see the 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2011-12 archives.

For a compilation of periodic tips that have appeared in past news items, see the Tip Archive.

To view only the most recently added planets and updated parameters (default and non-default), see this pre-filtered and pre-sorted interactive table.

February 18, 2021

Twelve Planets Added, Including TOI-178 System

This week we welcome 12 new members to the confirmed planet club, including the six-planet TOI-178 system believed to have one of the most complex resonance chains ever observed.

The new planets are: NGTS-13 b, HD 110113 b & c, TOI-178 b, c, d, e, f, & g, HD 4760 b, HD 96992 b, and TYC 0434-04538-1 b.

Check out the new planetary data in the Planetary Systems Table (gamma) and its companion table, Planetary Systems Composite Parameters (beta), which offers a more complete table of planet parameters combined from multiple references and calculations. The Confirmed Planets, Composite Planet Data, and Extended Planet Data interactive tables are also currently updated with new planetary and stellar data, but will be deprecated in early 2021. See this Transition document and the Planetary Systems tables release notes for more information.

News panel image credit: ESO/L. Calçada

January 28, 2021

New Milestone: Over 100 TESS Planets!

This week's release consists of 10 new transiting planets, nine of which were discovered by NASA's TESS. This bumps up the total number of published, confirmed TESS planets to 107.

The new TESS planets are HD 108236 b, c, d, & e (aka TOI-1233), TOI-564 b, TOI-905 b and TOI-451 b, c, & d. The tenth planet, HD 108236 f, was discovered by ESA's CHEOPS mission. HD 108236 is also featured in this JPL Discovery Alert; its bright, Sun-like star hosts a hot super-Earth that is evaporating under the glare of its sun—teaching us more about exoplanet atmospheres.

January 11, 2021

New Year, New Planets

For our first release of 2021, we have a new multi-planet system in the archive: TOI 561. All of the system's five planets were observed by NASA's TESS and are published in two papers, Lacedelli et al. and Weiss et al. These discoveries are also featured today in the news: A Rocky Planet Around One Of Our Galaxy's Oldest Stars (Keck Observatory).

Two additional planets have also been added to the archive, both of which were observed as transits: TOI-776 b & c.

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