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Double stars

A red giant star and a white dwarf orbit each other in a nova animation similar to that of T corona borealis. The red giant is a large ball in shades of red, orange and white, with the side facing the white dwarf being in lighter shades. The white dwarf is hidden in a bright white and yellow glow, representing an accretion disk around the star. A stream of material, shown as a diffuse cloud of red, flows from the red giant to the white dwarf. When the red giant passes behind the white dwarf, a nova explosion occurs on the white dwarf, creating a ball of ejected novae material shown in bright orange. After the fog dissipates, a small white dot remains, indicating that the white dwarf survived the eruption. Credit: NASA/Goddard Space Flight Center

Don't miss it: in the coming months, a nova eruption is expected to occur that will be visible to the naked eye

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The T Corona Borealis system includes a white dwarf—an Earth-sized remnant of a star with a mass similar to that of our Sun—and an ancient red giant whose hydrogen has been sucked up by a force
An artist's impression of the large-scale landscape of FU~Ori. The image shows the currents created by the interaction between strong stellar winds triggered by the outburst and the remnant mantle from which the star formed. The stellar wind drives the shock wave into the mantle and the CO gas carried away by the shock is the new discovery of the ALMA observatory. Credit: NSF/NRAO/SDagnello

Astronomers solve the mystery of the dramatic 1936 eruption of FU Orionis

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An unusual group of stars in the Orion constellation has revealed their secrets. FU Orionis, a double star system, first attracted the attention of astronomers in 1936, when the central star suddenly became
Different types of stars. Illustration: depositphotos.com

Hotter than the sun: an extremely hot brown dwarf has been discovered about 1,400 light years away from us

The brown dwarf is part of a new pair system that may advance our understanding of the evolution of stars and planets under extreme radiation conditions
Planets orbit two suns. Illustration: depositphotos.com

A "Tatoine-like" planet orbiting two suns has been discovered

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An international team of astronomers announced the discovery of a second planet in the circumbinary system (where planets orbit two suns) of the rare multiple planet BEBOP-1. This planet was discovered using the transit method and noticed
The black holes discovered by the Gaia spacecraft. Figure: European Space Agency

The closest black hole to the solar system

An international team, which includes a group of researchers from Tel Aviv University, has identified the first black hole, Gaia BH1, which is 1500 light years from Earth
An artist's illustration shows a white dwarf (right) orbiting a large sun-like star (left) in a very short orbit, forming a "cataclysmic" binary system. Credit: M. Weiss/Center for Astrophysics Harvard & Smithsonian

A decades-old prediction has been verified: astronomers have discovered a "cataclysmic" pair of stars

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Astronomers have discovered a pair of stars with an extremely short orbit. A star similar to our sun orbits a white dwarf every 51 minutes
https://theconversation.com/uk/technologyאטא קארינה – מערכת הכוכבים הכפולים שפולטת קרינה קוסמית לעבר כדור הארץ. NASA, ESA, and the Hubble SM4 ERO Team

The "solar winds" of the pair of stars Eta Carina are a strong source of cosmic radiation that harms the Earth

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The double star system AR Scorpii, located 380 light years from Earth is an unusual system. The white dwarf that shoots a concentrated beam of electrons that hits every two minutes (its spin time) its neighbor in the system - a red dwarf. Illustration: University of Warwick.

An unusual pulsar produces a focused particle accelerator-like beam that strikes its neighbor in the binary star system

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Double eclipse in the Kepler system 1647. Image: NASA

A newly confirmed planet is the largest yet orbiting two suns

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Artist rendering of a hypothetical moon orbiting a planet discovered in a dense three-star system. Image: NASA/Caltech

A planet was discovered in a system of three suns

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Artist's illustration of Kepler 34b orbiting two stars. (David A. Aguilar (CfA)

One planet - two suns, and it's not Tatooine

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A collision between an aging star and a young star in a triple star system. Illustration: Professor Hagi Peretz

The wild lives of aging stars (and planets): leaving home, changing partners and participating in violent clashes

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Family Photo of the PH1 Planetary System: The planet you discovered is depicted in this artist's drawing as it passes in front of the larger of the two suns. In the distance, beyond the planet's orbit lies a second pair of stars gravitationally bound to the planetary system. Image: Haven Giguere/Yale.

Amateur astronomers have discovered a planet in a four-sun system

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Illustration of the system. In the center of the figure one of the planets and in the distance you see the double sun and the other planet.

For the first time, two new planets orbiting a double sun have been discovered

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Artist's rendering showing the close proximity of two stars, the two active M4 red dwarfs orbit each other in two and a half hours and continue to spin towards each other. Eventually they will merge into one star. Illustration: J. Pinfield

A double star system that was thought to be impossible has been discovered

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The open cluster NGC 265 as imaged by the Hubble Space Telescope

How stars lose their partners

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Artist's impression of the planet WASP-12b being devoured by its parent star. Image: NASA, European Space Agency and J. Bacon of the Space Telescope Science Institute (STScI).

Hubble watched the sun "eating" the planet surrounding it

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A double star system is flawed in that both members of the system are white dwarfs. Illustration: University of California at Santa Barbara

An Israeli researcher from the University of California shared the discovery of a double star system containing two white dwarfs

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Excerpt from the logo of the science site. PR photo

An Israeli researcher discovered an unusual supernova

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Excerpt from the logo of the science site. PR photo

Neighbors

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Excerpt from the logo of the science site. PR photo

Planets can form around binary stars

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Excerpt from the logo of the science site. PR photo

The smallest black hole has been discovered

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Excerpt from the logo of the science site. PR photo

A world with three sunsets

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Excerpt from the logo of the science site. PR photo

A cold giant and his warm companion

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