Tag

Astronomical Phenomena

All articles tagged with #astronomical phenomena

astronomy1 year ago•2 min saved

"2024's 'Great American Eclipse' Over, When and Where to See the Next Total Solar Eclipse"

During the recent total solar eclipse, observers were treated to the sight of bright red dots along the Sun's perimeter, which were actually solar prominences—reddish or pinkish structures extending from the Sun's edge. These prominences, composed of plasma and anchored to the Sun's surface, are distinct from solar flares and are a result of the Sun's dynamic phase during its 11-year cycle. Astronomers eagerly anticipate studying these features during eclipses, and the recent event provided a rare opportunity for ground-based observers to witness these stellar phenomena firsthand.

via Quartz|

#astronomical-phenomena #astronomy #solar-eclipse

astronomy2 years ago•3 min saved

"Green 'Devil Comet' Photobombs Nebula on Collision Course with Earth"

The "devil comet" 12P/Pons-Brooks, a cryovolcanic comet, has been captured in stunning photos as it races towards Earth, with its closest approach expected later this year. The comet, known for its green-hued coma, has been erupting irregularly, earning it the nickname "devil comet." Its recent lack of activity has puzzled scientists, as it was expected to become more active as it approached the sun. The comet's upcoming close approach to Earth may provide an opportunity for researchers to study this phenomenon in greater detail.

via Livescience.com|

#astronomical-phenomena #astronomy #celestial-objects

astronomy2 years ago•5 min saved

Unraveling the Enigma of Universe's Rare Radio Circles

Astronomers have unraveled the mystery behind the rare radio wave circles (ORCs) discovered in 2019, attributing them to outflowing galactic winds from starburst galaxies, shedding light on galactic evolution and phenomena. These enormous circles, reaching hundreds of thousands of light years across, are believed to be formed by the intense burst of star formation in starburst galaxies, leading to ultra-fast outflowing winds that create the observed radio rings. The findings provide new insights into the nature of these peculiar astronomical phenomena and their role in understanding galactic evolution.

via SciTechDaily|

#astronomical-phenomena #astronomy #galactic-winds

astronomy2 years ago•2 min saved

"Unveiling the Characteristics of a Dim Tidal Disruption Event"

Astronomers have used a spectral synthesis code to study a faint tidal disruption event (TDE) known as iPTF16fnl, providing insights into its properties. The TDE, located at the center of the galaxy Markarian 950, has a black hole estimated to be about 673,000 solar masses and a disrupted star approximately 2.6 times more massive than the sun. The study revealed details about the outflow from the accretion disk, the mass outflow rate, and the helium-to-hydrogen number density ratio of the wind, shedding light on the physical properties of this TDE.

via Phys.org|

#astronomical-phenomena #astronomy #black-hole