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#coma berenices
quiltofstars · 3 days
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M91 // Ralph MacDonald
A barred spiral galaxy, M91 is the faintest object in the Messier catalog and the last group of eight galaxies that Messier discovered in 1781.
This was also a "lost" object for nearly two centuries. Messier made a mistake in logging his observations, writing this galaxies position with respect to M58 instead of M89. Although William Herschel (1738-1822) suspected this mistake in 1784, he was unsure. It took amateur astronomer William C. Williams in 1969 to recover this "lost" galaxy!
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chibinotan · 1 year
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Lensed Seahorse
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yoan-le-grall · 7 months
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jcmarchi · 3 months
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Rare Six-Planet Star System Discovery is Music to Astronomers’ Ears - Technology Org
New Post has been published on https://thedigitalinsider.com/rare-six-planet-star-system-discovery-is-music-to-astronomers-ears-technology-org/
Rare Six-Planet Star System Discovery is Music to Astronomers’ Ears - Technology Org
A rare star system with six exoplanets has been discovered with an architecture unchanged for billions of years.
Exoplanet – illustrative photo. Image credit: Pixabay (Free Pixabay license)
The star, HD110067, that is 100 light-years away in the northern constellation of Coma Berenices, has been perplexing researchers for years. Now scientists, including those at the University of Warwick, have revealed the true architecture of this unusual system using NASA and ESA spacecrafts.
The first indication of planets orbiting the strange star system came in 2020, when NASA’s Transiting Exoplanet Survey Satellite (TESS) detected dips in the star’s brightness that suggested planets were passing in between the star and the TESS spacecraft. A preliminary analysis revealed two possible planets. One with a year (or an orbital period – the time it takes to complete one orbit around the star) of 5.64 days and another with an unknown period at the time.
Two years later, TESS observed the same star again. Analysing all data ruled out the original interpretation but presented two additional possible planets, changing the picture of the planetary system completely.
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Much was still unknown about the planetary system, and that was when Rafael Luque of the University of Chicago and scientists across the world – including those at the University of Warwick – joined the investigation. They used data from the European Space Agency’s (ESA) CHaracterising ExOPlanet Satellite (CHEOPS), hoping to determine the orbital periods of these faraway planets.
The CHEOPS data was key in confirming a third planet in the system and the team had found the key to unlocking the whole system. It was now clear that the three planets were in a pattern of orbits known as an ‘orbital resonance’. For example, an outer planet takes 20.52 days to orbit, which is extremely close to 1.5 times the orbital period of the next planet with 13.67 days. This in turn is almost exactly 1.5 times the orbital period of the inner planet, with 9.11 days.
Thomas Wilson, Department of Physics, University of Warwick, said: “By establishing this pattern of planet orbits, we were able to predict other orbits of planets we hadn’t yet detected. From this we lined up previously unexplained dips in starlight observed by CHEOPS and discovered three additional planets with longer orbits. This was only possible with the crucial CHEOPS data.”
Orbitally resonant systems are extremely important to find because they tell astronomers about the formation and subsequent evolution of the planetary system. Planets around stars tend to form in resonance but can easily have their orbits thrown around.
For example, a very massive planet, a close encounter with a passing star, or a giant impact event can all disrupt the careful balance. As a result, many of the multi-planet systems known to astronomers are not in resonance meaning that multi-planet systems preserving their resonance are rare.
“We think only about one percent of all systems stay in resonance,” explains Rafael Luque. That why HD110067 is special and invites further study. “It shows us the pristine configuration of a planetary system that has survived untouched.”
“As our science team puts it: CHEOPS is making outstanding discoveries sound ordinary. Out of only three known six-planet resonant systems, this is now the second one found by CHEOPS, and in only three years of operations,” says Maximilian Günther, ESA project scientist for CHEOPS.
HD110067 is the brightest known system with four or more planets. Since those planets are all sub-Neptune-sized with likely larger atmospheres, it makes them ideal candidates for studying the composition of their atmospheres using the NASA/ESA/CSA James Webb Space Telescope and the ESA’s future Ariel telescope. Whereas ESA’s upcoming PLATO telescope, due to be launched in 2026, within which the University of Warwick is playing a leading role, could find planets in this system with even longer years.
Thomas Wilson added: “All of these planets have large atmospheres – similar to Uranus or Neptune – which makes them perfect for observation with JWST. It would be fascinating to test if these planets are rocky like Earth or Venus but with larger atmospheres – solid surfaces potentially with water. However, they are all much hotter than Earth, 170-530 degrees Celsius, which would make it very difficult for life to exist.”
“A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067” by R. Luque et al. is published in Nature today. DOI 10.1038/s41586-023-06692-3
Source: University of Warwick
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broadacre · 7 months
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To the girl named like a constellation.
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xlntwtch2 · 4 months
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from 11/29/23 AP News...
"CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago.
The find, announced Wednesday, can help explain how solar systems across the Milky Way galaxy came to be. This one is 100 light-years away in the constellation Coma Berenices. A light-year is 5.8 trillion miles.
A pair of planet-hunting satellites — NASA’s Tess and the European Space Agency’s Cheops — teamed up for the observations...
This star, known as HD 110067, may have even more planets. The six found so far are roughly two to three times the size of Earth, but with densities closer to the gas giants in our own solar system. Their orbits range from nine to 54 days, putting them closer to their star than Venus is to the sun and making them exceedingly hot....
This solar system is unique because all six planets move similar to a perfectly synchronized symphony, scientists said. In technical terms, it’s known as resonance that’s “precise, very orderly,” said co-author Enric Palle of the Institute of Astrophysics...."
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Study for Coma Berenices.
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mitalco · 11 months
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MaySketchaDay - D5
°˖✧ Offering her hair only for it to be placed in the sky,
that makes for an incredible and beautiful story indeed ✧˖°  
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oriwii · 2 years
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Coma Berenice Michelle
Comparto unos dibujos de los ropajes que usa mi niña durante el transcurso de la historia.
Hablando de la Cloth, me inspiré en muchas versiones que encontré en internet, al final del post daré los créditos a sus respectivos autores.
Foto 1: Rodigo6620 - DeviantArt
Foto 2: Alfonso Paredes, Alias "Afo" (Perú)
Foto 3: @ladyheinstein
Foto 4: Toei ©
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josevte72 · 8 days
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Descubriendo la Belleza de la constelación Cabellera de Berenice: un robo entre las estrellas
Una constelación intrigante, envuelta en la leyenda y la mística, Coma Berenices o Cabellera de Berenice, se alza majestuosamente sobre nosotros, desafiando la oscuridad con su resplandor. La protagonista de esta narrativa estelar es Berenice, una soberana egipcia cuyo destino quedó entrelazado con el firmamento hace más de dos milenios. Casada con Ptolomeo Euergetes, su vida se convirtió en una…
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quiltofstars · 19 hours
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The Mirror Galaxy, M100 // sydney
Seen almost face-on, the Mirror Galaxy is a starburst galaxy with strong bursts of star formation happening in the central regions of the galaxy over the last 500 million years. M100 has two satellite galaxies visible in this image, NGC 4323 (bottom) and NGC 4328 (left), connected to M100 by a bridge of stars.
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chibinotan · 10 months
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Pressured Jellyfish
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yoan-le-grall · 7 months
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jcmarchi · 3 months
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January’s Night Sky Notes: Connecting the ‘Dots’ with Asterisms - Technology Org
New Post has been published on https://thedigitalinsider.com/januarys-night-sky-notes-connecting-the-dots-with-asterisms-technology-org/
January’s Night Sky Notes: Connecting the ‘Dots’ with Asterisms - Technology Org
In NASA’s December Night Sky Notes, authors mentioned that the Orion constellation has a distinct hourglass shape that makes it easy to spot in the night sky. But what if we told you that this is not the complete constellation, but rather, an asterism?
Stars that make up the Winter Circle, as seen on January 1, 2024, Sky Safari
An asterism is a pattern of stars in the night sky, forming shapes that make picking out constellations easy. Throughout history, cultures have created these patterns as part of storytelling, honoring ancestors, and timekeeping.
Orion’s hourglass is just one of many examples of this, but did you know Orion’s brightest knee is part of another asterism that spans six constellations, weaving together the Winter night sky? Many asterisms feature bright stars that are easily visible to the naked eye. Identify these key stars, and then connect the dots to reveal the shape.
This image shows the region around the Hyades star cluster, the nearest open cluster to us. The Hyades cluster is very well-studied due to its location, but previous searches for planets have produced only one. A new study led by Jay Farihi of the University of Cambridge, UK, has now found the atmospheres of two burnt-out stars in this cluster — known as white dwarfs — to be “polluted” by rocky debris circling the star. Inset, the locations of these white dwarf stars are indicated — stars known as WD 0421+162, and WD 0431+126. Image credit: NASA, ESA, STScI, and Z. Levay (STScI)
Try looking for these asterisms this season and beyond:
Winter Circle – this asterism, also known as the Winter Hexagon, makes up a large portion of the Winter sky using stars Rigel, Aldebaran, Capella, Pollux, Procyon, and Sirius as its points. Similarly, the Winter Triangle can be found using Procyon, Sirius, and Betelgeuse as points. Orion’s Belt is also considered an asterism.
Diamond of Virgo – this springtime asterism consists of the following stars: Arcturus, in the constellation Boötes; Cor Caroli, in Canes Venatici; Denebola in Leo, and Spica in Virgo. Sparkling at the center of this diamond is the bright cluster Coma Berenices, or Bernice’s Hair – an ancient asterism turned constellation!
Summer Triangle – as the nights warm up, the Summer Triangle dominates the heavens. Comprising the bright stars Vega in Lyra, Deneb in Cygnus, and Altair in Aquila, this prominent asterism is the inspiration behind the cultural festival Tanabata. Also found is Cygnus the Swan, which makes up the Northern Cross asterism.
Great Square of Pegasus – by Autumn, the Great Square of Pegasus can be seen. This square-shaped asterism takes up a large portion of the sky, and consists of the stars: Scheat, Alpheratz, Markab and Algenib.
Tracing these outlines can guide you to objects like galaxies and star clusters. The Hyades, for example, is an open star cluster in the Taurus constellation with evidence of rocky planetary debris. In 2013, Hubble Space Telescope’s Cosmic Origins Spectrograph broke down light into individual components. This observation detected low levels of carbon and silicon – a major chemical for planetary bodies. The Hyades can be found just outside the Winter Circle and is a favorite of both amateur and professional astronomers alike.
Use Star Maps and Star Apps – Using star maps or stargazing apps can help familiarize yourself with the constellations and asterisms of the night sky.
Get Familiar with Constellations – Learning the major constellations and their broader shapes visible each season will make spotting asterisms easier.
Use Celestial Landmarks –Orient yourself by using bright stars, or recognizable constellations. This will help you navigate the night sky and pinpoint specific asterisms. Vega in the Lyra constellation is a great example of this.
Source: National Aeronautics and Space Administration
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jingszo · 4 months
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Scientists have discovered a rare sight in a nearby star system: Six planets orbiting their central star in a rhythmic beat. The planets move in an orbital waltz that repeats itself so precisely it can be readily set to music.
This discovery is going to become a benchmark system to study how sub-Neptunes, the most common type of planets outside of the solar system, form, evolve, what are they made of, and if they possess the right conditions to support the existence of liquid water in their surfaces.
A rare resonance
The six planets orbit a star known as HD110067, which lies around 100 light-years away in the northern constellation of Coma Berenices.
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quirk-nova · 7 months
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Queen Loxodonta
The noble and ruthless anthropomorphic African elephant queen of Mammalia who represents Coma Berenices. Loxodonta secretly has a spot for feminine hobbies such as reading romance novels and shopping. She secretly cares for her husband, King Shrub, and would do anything to ensure his safety.
Headcanon Voice: CCH Pounder
Amanda Waller Voice - Batman: Assault on Arkham (Movie) - Behind The Voice Actors
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