Euromedia24 on Play Store Euromedia24 on App Sore
BNB

$628.42

BTC

$89785

ADA

$0.571152

ETH

$3219.47

SOL

$218.98

1 °

Yerevan

0 °

Moscow

25 °

Dubai

9 °

London

16 °

Beijing

9 °

Brussels

11 °

Rome

10 °

Madrid

BNB

$628.42

BTC

$89785

ADA

$0.571152

ETH

$3219.47

SOL

$218.98

1 °

Yerevan

0 °

Moscow

25 °

Dubai

9 °

London

16 °

Beijing

9 °

Brussels

11 °

Rome

10 °

Madrid

Astronomers have discovered a new brown dwarf planet with an unusual orbit


An international team of astronomers led by Beth Henderson from the University of Leicester in the UK has announced the discovery of a new brown dwarf, designated TOI-2490 b. This object, orbiting a Sun-like star, has a mass approximately 74 times that of Jupiter and moves in a highly eccentric orbit.TOI-2490 b is similar in size to Jupiter, with a mass of about 73.6 Jupiter masses, giving it a density of 91.6 g/cm³. The brown dwarf completes an orbit around its parent star every 60.33 days, at a distance of about 0.31 AU. The equilibrium temperature of TOI-2490 b is estimated to be 464.2 K.Observations have shown that the orbital eccentricity of TOI-2490 b is approximately 0.78. This makes TOI-2490 b the most “eccentric” brown dwarf in the so-called BD desert — a region lacking brown dwarfs around main-sequence stars within about 3 AU of the host.Analyzing the collected data, the discovery authors concluded that TOI-2490 b likely formed with such a high level of eccentricity. They added that this brown dwarf probably formed through star formation mechanisms and is expected to have similar metallicity and age as its parent star.The study also showed that the irradiation temperature of TOI-2490 b varies by about 1000 K (from 545 to 1552 K) as it moves along its orbit. However, further observations are needed to fully understand such extreme variation.The host star, TOI-2490, has a mass comparable to the Sun, with a radius measured at about 1.1 solar radii. The star’s age is estimated to be 7.9 billion years, its metallicity is 0.32 dex, and its effective temperature is 5558 K.

News

More News

...

Elon Musk is currently working on a new version of Robots that can carry and care for a child for 9 months (video)

LIVE: Protest action of "Goi" staff in front of HRD office

Avinyan allocated 20 million drams to the "Armenian Actors' Union" NGO for the holding of the festival.

Would that some would defend the church with this same zeal in actual attacks; Nazeni Hovhannisyan

The movie "Msyo Aznavour" about Aznavour will appear at the Armenian box office

Doctor of technical sciences, professor Sargis Ghazaryan died

The Foreign Ministry confirmed that the film about Artsakh did not appear in the "Oscar" nomination due to pressure from Baku

At the request of Azerbaijan, Jordan withdrew the film about the revenge of an 11-year-old Artsakh resident submitted to "Oscar".

The policy adopted by the government aims to develop the scientific potential. Zhanna Andreasyan

The police forbade the actors of "Goi" to set up tents for the sit-in. Arzumanyan

Employees of "Goi" theater started a sit-in

We are concerned about the indicators of participation in voluntary certification and the overcoming threshold. Swajyan

A natural monument formed 300,000 years ago was just destroyed by an excavator in Hrazdan Gorge. Hayk Demoyan

An international conference dedicated to the 100th anniversary of Sergey Parajanov's birth was held in Madrid

How much money was allocated to the events dedicated to Charles Aznavour's 100th birthday?

Inviting Goi actors inside was fictitious (video)

We are not allowed to enter the "GOY" theater. the lawyer called the police

The Ministry of Justice could not issue a letter regarding the resumption of "Go". lawyer (video)

The actors of "Goi" called the police. they are not allowed to enter the theater. lawyer (video)

LIVE: "GOY" theater resumes its normal work