2019 Exoplanet Archive News

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For previous years' news, see the 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.

Note to our users: The link format on this page allows you to easily access overview pages for both planet hosts and their planets. Click on either the host name or the planet letter to view the object's respective overview page.


June 13, 2019

And the winner is: The confirmed planet count increases by 31 this week, bringing the total exoplanet count to 4,003! That means we have a winner for our #Exoplanet4K contest! Congratulations to Twitter follower Spyder Webb (@Spyder_Webb), who won the random drawing. Your full-color print of the 55 Cancri e poster from the Exoplanet Travel Bureau is on its way!

The archive staff thanks everyone who participated in the contest. We've created a page to showcase some of the more memorable entries.

New Planets: The new planets this week are: K2-16 d, K2-32 e, K2-50 c, K2-166 c, K2-168 c, EPIC 201238110 b (K2-296 b), EPIC 201497682 b (K2-297 b), EPIC 201841433 b (K2-298 b), EPIC 206024342 b (K2-299 b), EPIC 206032309 b (K2-300 b), EPIC 206042996 b (K2-301 b), EPIC 206215704 b (K2-302 b), EPIC 206317286 b (K2-303 b), EPIC 212297394 b (K2-304 b), EPIC 212424622 b (K2-305 b), EPIC 212499991 b (K2-306 b), EPIC 212587672 b (K2-307 b), K2-282 c, and L 98-59 b, c, & d, HD 180617 b, LSPM J2116+0234 b, KELT 23 A b, TOI 150.01, Kepler-65 e, PDS 70 c, EPIC 246865365 b (K2-308 b), HD 2685 b, GJ 49 b, and NSVS 14256825 b.

Additionally, there are new planet parameter sets for HIP 41378 b, c, d, e, & f, Kepler-25 b, c, & d, Kepler-65 b, c, & d, Kepler-68 b, c, & d, K2-32 b, c, & d, Gl 686 b. The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

May 23, 2019

There are two new transiting planets, K2-295 b and K2-133 e, and seven new sets of planet parameters in the archive this week. The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

May 16, 2019

This week we have 18 new planets, bringing the total confirmed planet count for our #Exoplanet4K contest to 3,970!

The new planets are: HD 210193 b, HD 211970 b, HD 39855 b, HIP 35173 b, HD 102843 b, HD 103949 b, HD 206255 b, HD 21411 b, HD 64114 b, HD 8326 b, HIP 54373 b & c, HD 24085 b, HIP 71135 b, NGTS-4 b, NGTS-5 b, and HD 15337 b & c.

The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

May 9, 2019

This week there are two new TESS planets, TOI 216 b and c, both transiting with transit timing variations, and HD 221420 b, which was confirmed with the radial velocity method. There are also new parameter sets for HD 92987 b and HD 219077 b.

The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

May 2, 2019

We've added three new transiting planets discovered by the Qatar Exoplanet Survey (QES), bringing our exoplanet count to 3,949. For those who are following along with our #Exoplanet4K contest, that means only 51 planets until we reach 4,000!

The new planets are Qatar-8 b, Qatar-9 b, and Qatar-10 b. Their data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

Make a Science-Ready TESS Image Mosaic: NExScI released this science-ready mosaic created with TESS data of the first five sectors of the South Ecliptic Pole. Create your TESS image mosaic with the source files available on the TESS ExoFOP web page and the Montage Image Mosaic engine on the Montage website.

April 25, 2019

There are two new planets this week, both very newsworthy in their own way:

  • HD 21749 c is the first Earth-sized planet discovered by TESS! Read about it in the press release.
  • Kepler-47 d is a third, transiting planet in a circumbinary system. Its orbit is located in between the orbits of the b and c planets that were previously known. See the press release for details.

The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

Also, our Exoplanet Community Follow-up Program (ExoFOP) community has grown to 800 users, who use the site to download and share their Kepler, K2 and TESS data! ExoFOP-TESS already has 93 unique users sharing content after just one year of the telescope's space operations.

April 18, 2019

Four newly confirmed transiting planets are in the archive this week, as well as 1,977 updated ephemerides for Kepler confirmed planets—65 of which have also been identified to have possible transit timing variations. The new planets are: HD 221416 b, WASP-177 b, WASP-181 b, and WASP-183 b.

The new planet data (including the updated TTV flags) can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables. The updated ephemerides can be accessed from each planet's overview page, as well as our Transit and Ephemeris Service. The list of 1,977 Kepler planets is published in Gajdoš, Vaňko, & Parimucha 2019.

April 11, 2019

We've added seven new planets, all detected using the radial velocity method, many of which have some of the longest-measured orbital periods, including one extending beyond 40 years! The new planets are: GJ 685 b, HD 13724 b, HD 181234 b, HD 25015 b, HD 92987 b, HD 50499 c, and HD 92788 c.

Also added: new sets of planet parameters for three known exoplanets: HD 50499 b, HD 92788 b, and HD 98649 b.

The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

April 5, 2019

New MOA Light Curves! The Microlensing Observations in Astrophysics (MOA) collaboration has contributed a new data set to the archive consisting of approximately 6,000 light curves (22 GB) acquired from 2006 to 2014.

These data can be downloaded in bulk from our MOA page, which also contains the observational coverage map.

April 4, 2019

New Planets: This week we've added seven new confirmed planets, including K2-293 b and K2-294 b, the first K2 exoplanets found using machine-learning algorithms. Fun Fact: NExScI scientist Jessie Christiansen was quoted in an NPR story on these discoveries.

The other new planets are: Qatar-7 b, K2-63 c, TOI 172 b, KOI-1599.02, and KOI-1599.01. The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

March 21, 2019

Here are the archive's updates this week:

Microlensing Planets Table: With 33 microlensing solutions added this week, the archive's Microlensing Planets Table is now the first public and comprehensive database of published microlensing planet models.

One Planet and a Plethora of Planet Parameters: New planet Gl 686 b is in the archive, as well as 233 new sets of planet parameters. The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

March 14, 2019

There are two new microlensing planets this week, KMT-2017-BLG-1038L b and KMT-2017-BLG-1146L b. Also, we've added new planet parameter sets for nine exoplanets.

The new planet data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

March 5, 2019

Kepler-1658 b: The first Kepler planetary candidate, KOI-4.01, confirmed as a true planetary system!

KOI-4.01 was identified by the Kepler Spacecraft 10 years ago. This week it was announced at the Kepler & K2 Science Conference V that KOI-4.01 is confirmed as exoplanet Kepler-1658 b. We've already added it to the archive; see its Confirmed Planet Overview page, press release, and the discovery paper (Chontos et al. 2019).

Six other planets added this week are: PDS 70 b, HD 219666 b, GJ 378 b, GJ 411 b, HD 1397 b, and WASP-190 b. We've also added new microlensing solutions for OGLE-2012-BLG-0950L b and MOA-2013-BLG-605L b.

The new planets' data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables. The new solutions are in the Microlensing Planets interactive table.

February 21, 2019

Microlensing Magic: We have one new microlensing planet, KMT-2016-BLG-1107 b, and eight more microlensing solutions for four microlensing planets: MOA-2010-BLG-073L b, MOA-2011-BLG-293L b, MOA-2011-BLG-322L b, and MOA-2012-BLG-006L b.

The new planet's data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables. The new solutions are in the Microlensing Planets interactive table.

Also, we've added new transmission spectroscopy data for XO-2 N b.

February 14, 2019

Countdown to 4,000 Planets! We're only 84 confirmed planets away from reaching 4,000 in the archive! To celebrate this next milestone, we're having a contest!

Show or tell us in your own words or images what YOU think the 4000th planet could look like. Would it be a puffy hot Jupiter in a binary system? Or a rocky super-Earth in a multi-planet system? Or perhaps it's a world made entirely of water or ice?

This contest is open to all ages, and entries can be anything from a crayon drawing to a haiku. Get creative!

To enter, publicly tweet to us at @NASAExoArchive or post on our Facebook page with a link to your entry. You must include the #Exoplanet4K hashtag to be entered in the random drawing. The winner, randomly drawn from all entries, will receive a full-color print of the 55 Cancri e poster from the Exoplanet Travel Bureau.

Have fun and good luck!

New Data This Week: We've added HATS-70 b, GJ 143 b, HD 23472 b & c to the archive, as well as new planet parameter sets for X0-2 N b. These data can be found in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

There are also new transmission spectra for X0-2 N b and XO-1 b, and new microlensing solutions for MOA-2008-BLG-310L b and MOA-2009-BLG-319L b.

February 7, 2019

21 Confirmed Planets Added: Several previously removed planets were added back to the archive this week based on radial velocity data published in Udry et al. 2018, as well as some new planets from the same paper. There is another planet, K2-292 b (a.k.a. HD 119130 b) from Luque et al. 2018, new planet parameter sets for K2-264 b & c and HD 20782 b, and new transmission spectroscopy for XO-2 N b.

The full list of planets from the Udry paper are: HD 20003 b & c, HD 20781 b, c, d & e, HD 21693 b & c, HD 31527 b, c & d, HD 45184 b & c, HD 51608 b & c, HD 134060 b & c, and HD 136352 b, c, & d. The reinstated planets are listed on the Removed Targets page.

The new planet and stellar data can be accessed from the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

January 31, 2019

This week we added K2-289 b and the third confirmed TESS planet, HD 202772 A b. View their data in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

We also removed HD 73256 b based on a published refutation. Note: For a comprehensive list of all targets removed or excluded from the archive, see the Removed Targets page. For more information about the archive's criteria for classifying and including objects, see our Exoplanet Criteria page.

January 24, 2019

Five New Planets: We've added five new planets this week, including LHS 3844 b, the second confirmed planet discovered by the Transiting Exoplanet Survey Satellite (TESS) mission. The other four planets are: K2-290 b & c, K2-291 b, and GJ 4276 b. View their data in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

UKIRT DR3 Microlensing Survey Data: We've added almost 26 million light curves from the 2018 United Kingdom InfraRed Telescope (UKIRT) Microlensing Survey, which tips the total number of light curves in the archive above 100 million! Other data sets served include Kepler, K2, KELT, SuperWASP, CoRoT, and others. See our Holdings page for details.

You may access the UKIRT DR3 data, as well as previous UKIRT releases, from the UKIRT Bulk Download page. Or, use the UKIRT search interface to find a subset of data and browse them in an interactive table (enter 2018 for Survey Year to view DR3 data). Read the documentation for more information.

Many thanks to the UKIRT Microlensing Team for providing these data to our users.

January 17, 2019

There have been 11 transiting and two radial velocity planets added to the archive this week. They are: Kepler-730 c, HD 202696 b & c, HATS-60 b, HATS-61 b, HATS-62 b, HATS-63 b, HATS-64 b, HATS-65 b, HATS-66 b, HATS-67 b, HATS-68 b, and HATS-69 b.

View their data in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.

January 10, 2019

The first planets to be added in 2019 are three single, transiting K2 planets, one of which (K2-288 B b) was found by citizen scientists using Exoplanet Explorers! The other two planets are K2-286 b and K2-287 b. See the press briefing for K2-288 B b, and read the discovery paper.

View their data in the Confirmed Planets, Composite Planet Data, and Extended Planet Data tables.