The "Super Earth" is among three new planets and six supernovae outside our solar system that have been observed by Nasa's planet-hunting Tess mission in its first three months.
An artist's conception shows NASA's Transiting Exoplanets Survey Satellite, or TESS, with an assortment of exoplanets.
Dragomir and her team also used observations made by the Planet Finder Spectrograph, which is installed on the Magellan II Telescope in Chile, to confirm the discovery and help nail down HD 21749b's mass and orbital parameters.
If it's a water planet, HD 21749b is likely to be steamy: Based on its proximity to its parent star, the surface temperature could be in the neighborhood of 300 degrees Fahrenheit.
"This star was already known to host a planet, called Pi Mensae b, which is about 10 times the mass of Jupiter and follows a long and very eccentric orbit", said Chelsea Huang, a Juan Carlos Torres Fellow at the Massachusetts Institute of Technology's (MIT) Kavli Institute for Astrophysics and Space Research (MKI) in Cambridge.
"We think of TESS as an exoplanet-hunter, but in addition TESS is very effective at finding many other types of objects", said Dr. George Ricker, principal investigator with the TESS mission.
K2-288Bb is half the size of Neptune or 1.9 times the size of Earth, placing it in the "Fulton gap " between 1.5 and two times the size of Earth. But the gas that makes it up it is probably more dense than that of Uranus or Neptune.
On the bright side, there is evidence of a second, still unconfirmed planet in the same system, this one with a much shorter 7.8-day orbit. It's hard to tell whether the planet is rocky like Earth or a gas giant like Neptune.
TESS was launched in April last year, kicking off a two-year mission to monitor for dips in the lights of some 200,000 stars.
"This is only the ninth system discovered containing six or more planets", he said. Every six days, the new planet orbits the star Pi Mensae, located about 60 light-years away and visible to the unaided eye in the southern constellation Mensa.
While impressive, it does not appear the planet has the attributes required to support life as a habitable world.
These exoplanets will be studied so that NASA can determine the best targets for future missions, like the James Webb Space Telescope. Using ground-based telescopes, astronomers are now conducting follow-up observations on more than 280 TESS exoplanet candidates.
A look at some of the big winners at the 2019 Golden Globes from Lady Gaga and Regina King to Carol Burnett and Sandra Oh . Her photobombs were enough to get herself trending on Twitter ー #fijiwatergirl ー as the first viral meme of 2019.
She said in the questionnaire that she attended the meeting to lobby for a re-examination of the Magnitsky Act. The response "purported to accuse" deceased Russian accountant Sergei Magnitsky of involvement in the fraud.
After the performance, Cowell, 59, said: "I can not think of any other contestant who has defined this show better than you". Her first audition, a rendition of I Dreamed a Dream from Les Miserables , famously stunned the audience and judges alike.
And while Sony never makes any major game-related announcements at CES , PlayStation will likely have some presence. Apple spent a lot of time in 2018 taking Facebook and Google to task for their awful privacy policies.
As a result, US crude oil production rose by 2 million barrels per day (bpd) previous year to a world record 11.7 million bpd. The current round of talks are scheduled to continue through Tuesday, with more senior-level discussions likely this month.
In Nagaland, the cabinet of the NDPP-BJP alliance government has chose to ask the Centre to reconsider the bill. The opposition Congress and the All Indian United Democratic Frontg have 25 and 13 members respectively.
Ever since the Jon Gruden era fizzled out, the Tampa Bay Buccaneers have been despite for a true identity and a winning culture. That's likely why Arians could be named the team's coach as early as Tuesday, according to the Times.
Instead, the city plans to expand its current MetroPlus public insurance plan while adding a new program called NYC Care. After his appearance on the program, his office clarified that the program won't technically be health insurance.
Suspicious packages sent to embassies in Australia
The alerts come after Sydney's Argentinian consulate was partially evacuated on Monday after reports of a suspicious substance. An AFP spokesperson said that as the matter is subject to further inquiries, they would not be providing further information.
Weah joins Celtic on loan from PSG
Celtic have already brought in West Brom forward Oliver Burke and Paris Saint-Germain forward Timothy Weah on loan until the end of the season.
LG unveils incredible 65-inch "roll-away" 4K TV
This enables specific tasks that don't require a full screen, including checking the time and weather, and viewing family photos. Full View delivers a large-screen viewing experience revealing the full extent of the contrast, depth and realism.