Zum Inhalt der Seite gehen

Suche

Beiträge, die mit Astrodon getaggt sind


There's a partial solar #eclipse tomorrow! The #Moon will slip between #Earth and the #Sun, casting its shadow over us 🌞🌕🌍

To get in the spirit, let’s take a (very) close peek at our cosmic neighbour, with its crater-covered surface. And, sadly, no cheese in sight 🧀 👀

This image was captured in early January through the Nasmyth A focus of the UT1 telescope at our Very Large Telescope (VLT) in #Chile

📷 Abigail Frost

#astrodon #astronomy #astrophotography #science
A closeup image of a circular patch of the Moon's surface, bright and gray, sprinkled with mountains and circular craters of different sizes. This image is surrounded by a circular shadow and a cross-shaped shadow of the structure that supports one of the telescope's mirrors.


Scheinbar hat meine @allsky Kamera die #spacex #Falcon Treibstoffwolke doch auch aufgenommen. Zwischen den Wolkenlücken sieht es allerdings nicht sehr spektakulär aus.

@admin @gg
#astrodon
Allsky Aufnahme bedeckter Himmer mit Leuchterscheinung
Allsky Aufnahme bedeckter Himmer mit Leuchterscheinung
Allsky Aufnahme bedeckter Himmer mit Leuchterscheinung
Allsky Aufnahme bedeckter Himmer mit Leuchterscheinung


The lasers our Very Large Telescope (VLT) pierce the Milky Way… but what is that vertical glow just below? 🤔

That’s the zodiacal light: caused by dust grains in the Solar System, it's so faint that it’s only visible in the darkest skies, such as those of Chile’s Atacama Desert.

And the pristine night sky 🌌 in this region has always been intertwined with the culture and traditions of its indigenous people, discover how: https://www.eso.org/public/images/potw2511a/

📷 F. Millour/ESO

#astrodon #astronomy #astrophysics #space #science
A vertical image of the night sky. The Milky Way – a dense band of stars and dark dust lanes – crosses the sky diagonally. Four yellow laser beams coming from outside of the image converge towards the bright core of the Milky Way. The zodiacal light – a white, diffuse and faint smudge of light – stretches vertically from the horizon.


Check out these pics to catch one last glimpse of Saturn's rings before they "disappear" from view for a while! 🪐 🤩

On 23 March, the Earth's orbit will cross the plane of the rings, making the majestic rings appear edge-on from our perspective. Since Saturn will be positioned very close to the Sun in the sky, it won’t be possible to observe it as the Earth crosses the plane. ⁠The rings will then become visible again in September this year.

Courtesy of ESO astronomer Abigail Frost, these images were captured in early January through the Nasmyth A focus of Unit Telescope 1 at our Very Large Telescope (VLT) in #Chile .

#astrodon #astronomy #astrophotography #science
An image of Saturn against a blue sky, observed through a telescope. Saturn appears as a small yellowish disk, crossed diagonally by a thin line, which is in fact Saturn's rings seen almost edge on. The blue sky is partially blocked by various circular and straight shadows of the telescope's mirrors and its support structures.
An image of Saturn against a blue sky, observed through a telescope. Saturn appears as a small yellowish disk, crossed diagonally by a thin line, which is in fact Saturn's rings seen almost edge on. The blue sky is partially blocked by various circular and straight shadows of the telescope's mirrors and its support structures.
An image of Saturn against a blue sky, observed through a telescope. Saturn appears as a small yellowish disk, crossed diagonally by a thin line, which is in fact Saturn's rings seen almost edge on. The blue sky is partially blocked by various circular and straight shadows of the telescope's mirrors and its support structures.
An image of Saturn against a blue sky, observed through a telescope. Saturn appears as a small yellowish disk, crossed diagonally by a thin line, which is in fact Saturn's rings seen almost edge on. The blue sky is partially blocked by various circular and straight shadows of the telescope's mirrors and its support structures.


Einblick in die Tiefen des Weltalls ✨ : Das Weltraumteleskop @ec_euclid der #ESA lieferte neue, hochauflösende Daten für die Wissenschaft. Ein Team um Francine Marleau vom Institut für Astro- und Teilchenphysik konnte darin Tausende von Zwerggalaxien identifizieren.

🔭 🌌 https://www.youtube.com/watch?v=rXCBFlIpvfQ

Mehr dazu: https://www.uibk.ac.at/de/newsroom/2025/tausende-zwerggalaxien-entdeckt/

#Euclid #Astronomie #Weltraum #Astrodon


Planetary party portrait above Paranal!

In this image, taken in early February, the planets of the Solar System appear to parade one after the other above our Paranal Observatory in #Chile. Joining the party are the #Moon, the #MilkyWay, and a special guest: comet C/2024 G3 ☄️

A question we often get is whether the planets orbit the Sun in the same plane as the disc of the Milky Way. This image shows that's not the case: the plane of the Solar System –the ecliptic– is tilted about 60º relative to the Milky Way.

Read more: https://www.eso.org/public/images/potw2510a/

📷 B.Haeussler/ESO

#astrodon #astronomy #astrophysics #astrophotography #space #science
The image is a circular fisheye projection, with the horizon around the circular edge and the highest part of the sky at the centre of the circle. It shows eight telescope domes around the edge. The moon lights the telescopes and the desert from behind, creating a haze across, but above it the sky is pretty dark and full of stars. Our Milky Way galaxy –– an arc made dense by white points and hues of pink and purple –– crosses the image vertically. Several planets, which look like dots, appear aligned more or less horizontally across the sky. The image is marked with text for white points of interest, including the Milky Way, planets and comet C/2024 G3, which looks like the streak of a shooting star, blazing white.


Olympus Mons near the terminator just released by ESA Mars Express

Full size & info: https://flic.kr/p/2qQA6Fc
Credit: ESA/@DLR@social.bund.de/FUBerlin/AndreaLuck CC BY

Taken on 2024-08-06
Release Date: 2025-03-01 on https://psa.esa.int/

#Mars #Solarocks #Astronomy #Space #ESA #Astrodon
A top down view of Olympus Mons, the massive shield volcano on Mars. The volcano has a broad, circular shape with gently sloping flanks and a prominent central caldera. The surface appears reddish-brown, with darker shadowed regions emphasizing the rugged terrain. The edges of the volcano gradually fade into the surrounding Martian landscape. The lighting creates a contrast between the illuminated and shadowed areas, as the volcano is near the terminator, the boundary between day and night.


New #ESA Science Newsletter:

* pre-announcements for calls for M&F missions (&exploratory call for mini-Fs)
* Envision has a prime contractor!
* ESA Archival Research Visitor Programme call
* XRISM Guest Observers Cycle 2 Announcement of Opportunity
* Save the date for Cheops Guest Observers 6th Announcement of Opportunity
* Project Scientist for Roman
* eHST Science Archive
* XMM-Newton virtual Data Analysis Workshop

+ science highlights & conferences

▶️ https://www.cosmos.esa.int/web/scinews/2025-02

#astrodon


From the stairs to the stars! 🪜✨ Other than going to #space, the next best way to feel close to the stars is from the dark skies high up in #Chile’s Atacama Desert, where our Very Large Telescope(*) is located.

Those yellow beams are the VLT’s laser guide stars, shooting up from the telescope (to the right, but outside of the frame) into the sky. The laser beams create artificial stars high up in the atmosphere, which the telescope’s adaptive optics system uses to make the sharpest possible observations of the cosmos, from the ground.

Read more: https://www.eso.org/public/images/potw2509a/

(*) The VLT actually comprises several telescopes. And yes, you can tease us about the name 😅

📷 F. Millour/ESO

#astrodon #astronomy #astrophotography #science
At the centre of the image is the silhouette of a person standing on a tall viewing platform, at least 5 metres high and almost just as wide. It has a two-level staircase leading up to it. The dark foreground silhouette of stairs and platform contrasts with the night sky filled with stars, showing blue and green hues, and the cloudy, white Milky Way plane reaching across, diagonally. At the top right, two orange laser beams emerging from outside the frame seem to converge towards the galactic plane.


#Introduction #Astrodon I’m an astronomer at a regional university with an outreach program. When I have time for research, it’s archaeology of dead stars (supernovae). My nom de plume is to make clear my opinions are not associated with my institutions. I like #wildlife and animals, #history , #SocialJustice , geekery like #DnD, #Poetry (a dabbler), humor (punster), and interests too numerous to list. I’m part of the 🐦➡️ #MastodonMigration, but trying to be respectful of the community.


🚨 2024 YR4 asteroid impact update!

New observations of 2024 YR4 conducted with ESO’s Very Large Telescope and facilities around the world have all but ruled out an impact of the #asteroid with our planet. The asteroid has been closely monitored in the past couple of months as its odds of impacting Earth in 2032 rose to around 3%, the highest impact probability ever reached for a sizable asteroid. After the latest observations, the odds of impact dropped to nearly zero.

Read more: https://www.eso.org/public/news/eso2505/

#astrodon #astronomy #astrophysics #space #science


1/ When we first joined #mastodon we posted an image of our Extremely Large Telescope, currently under construction in #Chile, and we loved the enthusiasm it generated! Today we share with you a stunning time-lapse of the construction during last year: https://www.youtube.com/watch?v=KRcVJf0imso

#astrodon #astronomy #astrophysics #space #science


Un ciel de fou ce soir en Bretagne. Ça ne devrait pas durer toute la nuit, j'en profite pour sortir les jumelles. J'ai sorti le télescope pour après le dîner. #Astrodon #AstroSmartphone #astronomy #NightSky #Astronomie
Ciel étoilé au smartphone. On reconnaît la constellation d'Orion, les hyades avec l'étoile aldebaran, Jupiter au-dessus, les pléiades...


Hear the Sun - three years of solar flares observed with the STIX instrument on board #ESA's #SolarOrbiter sonified:

▶️ https://m.youtube.com/watch?v=XYXAdXf5gWU&t=80s&pp=2AFQkAIB

The video shows the sun as observed
Ultraviolet Imager instrument as Solar Orbiter moves closer to & further away from the Sun on its elliptical orbit. The blue circles are flares detected by the STIX instrument.

More info:
▶️ https://www.esa.int/ESA_Multimedia/Videos/2024/12/See_and_hear_three_years_of_solar_fireworks

I'm extremely happy we hired a trainee for sonification this year 😊

#astrodon #sonification #scicomm


1/ We have to agree with astronomer David H. Levy here: "Comets are like #cats : they have tails, and they do precisely what they want."

Since you loved the images of #comet C/2024 G3 (ATLAS) that we shared recently, here are some more, taken from our Paranal Observatory in #Chile. This lovely #BlackAndWhite image was taken by our colleague Juan Beltrán, an engineer at Paranal.

➡️ https://www.eso.org/public/images/potw2505a/

📷 J. Beltrán/ESO

#astrodon #astronomy #astrophysics #astrophotography #space
This black and white picture shows a small telescope and a large portion of the night sky. At the forefront, the silhouette of a small telescope reveals its small dome and central structure. Besides it stands a man, wearing a hood. The background of the picture shows the night sky, although only a few stars are visible, as well as a few short white strikes which indicate moving objects. The ’star’ of this composition, though, is the comet C/2024 G3 (ATLAS), which covers most of the frame and looks like a giant feather in the sky (or a bushy cat’s tail). The core of the comet (its tip) is bright white, while its tail becomes more diffuse as you go away from the core.


Während ihr auf der Seite des #IAG herumstöbert: Kennt ihr eigentlich schon das Zeitraffervideo vom Verlauf der Polarlichter über Göttingen während der Nacht 10./11.05.2024 letztes Jahr, erstellt aus Bildsequenzen aufgenommen mit der Himmelsüberwachungskamera des Instituts für Astrophysik und Geophysik der Universität Göttingen auf dem Dach der Fakultät für Physik?

https://www.astro.physik.uni-goettingen.de/outreach/videos/aurora_iag_20240510.mp4

(Bildorientierung: Norden rechts, Osten oben; Bearbeitung und Video: Karsten Schimpf, IAG)

via https://www.uni-goettingen.de/de/215077.html

Wir hatten zu den Polarlichtern im Mai auch was geschrieben: https://www.mps.mpg.de/7926227/news_publication_21927472_transferred

#Göttingen #UniGöttingen #Astrophysik #Geophysik #IAG #Astronomie #Aurora #AuroraBorealis #Nordlicht #Astrodon #Sonnenstürme #Sonnenaktivität


#Jupiter last night from my backyard in Purmerend. Telescope: 18cm Skymax #astrodon #astrophotpgrahy
Jupiter, a gray globe with brown horizontal bands and a small red spot to the bottom left. There are blueish waves in the middle band and small darker and lighter dots in the bands.


I found the “sister” of M33. Her name, NGC2403. They are pretty much alike. Have more or less the same size, shape, and they both feature a very big nebula: NGC604 in M33 and NGC2404 in the sister galaxy. Though, they got mad of each other, and now they are millions of l-y appart.

#astrophotography #astronomy #space #nightsky #nightphotography #photography #outdoors #stars #nebula #nebulae #galaxy #Astrodon
A spiral galaxy, spotted with pink blobs here and there, has a bright and tight core in its center. The arms of the galaxy expand and fade away into the vacuum of space. Although of majestic aspect, it’s only half the size of our own galaxy.


Reprocessed some November data from #M45 aka the #Pleiades.
#astrophotography #astronomy #Astrodon

60 x 60 sec. subs
20 dark/flat/bias
800 ISO

Sywatcher 72mm refractor
Canon T6 DSLR
iExos 100 PCM8 mount.
M45 aka The Pleiades star cluster


In a very brief break from winter clouds, I was able to catch Jupiter tonight, and Venus too! #astrodon #seestars50 #astrophotography




Also managed to get a mere 40m exposure on NGC 1499 through thickening clouds, enabling this pretty terrible image #astrodon #astrophotography #seestars50


#Caldwell 25 - #NGC 2419, also known as the #IntergalacticWanderer, is a #globularcluster located in the #constellation #Lynx, approximately 270,000 light-years away from Earth. The #cluster reaches its annual culmination at astronomical midnight and is best observed around mid-January.

Detailed Information: https://astrocamp.eu/c25

▼ Vixen VC200L | Canon EOS M100(a) '23

#astrophoto #astrophotography #nightsky #space #sky #astronomy #telescope #clearsky #photography #nature #astrodon
Intergalactic Wanderer


A moving story behind a beautiful snapshot of #Comet C/2024 G3 ATLAS:

“We took the photograph while we were en route from northern #Chile to Santiago, travelling to attend the first workshop on Equity, Diversity, and Inclusion for the Chilean astronomical community at ESO-Vitacura. Little did we know that this journey would present us with a once-in-a-lifetime observational opportunity!

The flight was delayed, and as the plane ascended, the timing coincided perfectly with sunset. By pure coincidence, the window seat in our row was unoccupied, providing us an unobstructed view of the breathtaking landscape below. It was then that we noticed a faint but unmistakable glow in the sky: Comet C/2024 G3 Atlas!

Eager to share this spectacle, we informed the flight attendants, who promptly passed on the news to the pilots. They were as enthusiastic as us, and they made an announcement to the passengers, describing the rare sight visible outside the plane. The pilots dimmed the cabin lights and even turned off the wing lights to enhance visibility, allowing everyone onboard to experience the comet in its full glory.

The cabin was filled with awe as passengers took pictures of the comet. This moment was a testament to how celestial events can bring people together, even at 30,000 feet!”

🥲

Thanks for sharing this wonderful image and story, Virginia Cuomo from the Astronomy Department of La Serena University in Chile and the Chilean Astronomical Society, and Annagrazia Puglisi from the School of Physics and Astronomy of the University of Southampton!

📷 Annagrazia Puglisi

#astrodon #astronomy #astrophotography #space #science
A view from an airplane window during twilight, showing the wing silhouetted against the sky. A comet –a white elongated smudge– hovers above the horizon, surrounded by scattered stars. Below, faint city lights dot the dark landscape.


1/ ☄️ #Comet C/2024 G3 (ATLAS) is gracing our skies, and we’d like to share some amazing images from our Paranal Observatory in #Chile!

This stunning shot by our friend Yuri Beletsky, with the comet next to an Auxiliary Telescope, is today's Astronomy Picture of the Day. Congrats, Yuri!

#astrodon #astronomy #astrophotography
A sunset photograph at an observatory. The colour of the sky changes from blue, almost purple, to golden at the horizon. There’s a white closed telescope dome with a spherical top. To its left, the comet stretches diagonally across almost the entire image, as if it had been painted on the sky with a gigantic brush. The tail of the comet is white and full of intricate filaments.


This is a starless version of the Heart Nebula. Four nights, twelve hours, and even that is after a massive weeding out of less successful images. For some reason the whole thing just turned to crap when I added the stars back in. I like this version and was not about to waste it.
#space #astronomy #astrodon
Dark red nebula with cloudy formations and faint light centers, resembling cosmic clouds in deep space.


NGC 2841 is an unbarred spiral #galaxy located 46 million light-years away in the #constellation Ursa Major. Taken from the back yard last night (Bortle 6-7)

Sywatcher 72mm refractor
Canon T6 DSLR
iExos 100 PCM8 mount.
180 - 60 second light frames @ 400 ISO
40 dark/flat/bias

#astrophotography #astronomy #astrodon
NGC 2841


There are mighty rivals for the famous Pillars of Creation in the Eagle Nebula, like these, located in the not so famous SH2 284 nebula. You can find these in the Unicorn.

#astrophotography #astronomy #space #nightsky #milkyway #nightphotography #photography #outdoors #stars #nebula #nebulae #Astrodon
An explosion of colorful clouds, layered in reddish, yellow, green and blue shades, stained with dark clouds that give the object character and depth. Many distant stars sparkle the whole picture.


This is a little over 11 hours of the Cone Nebula and the Christmas Tree Cluster. I'm not all that happy with it, but I've been working on it for hours and I just can't get it any better than this.
#space #astronomy #astrodon
A starry night sky showcases a vivid nebula with bright central light and scattered stars against a dark backdrop.


Pictures of our neighbor planets #Mars and #Venus, as well as #PlanetaryNebula NGC2392 taken with an 8" Newtonian and a ZWO ASI462MM camera. Color images are composites taken separately with corresponding filters. They're not perfect, but I'm pretty happy with the results. #astrophotography #Astrodon #amateurastronomy
Planetary nebula NGC 2392 shown as a greenish disk in front of a sparse star field. Some colorful details are visible in the disk.
Planet Mars with its distinctive red color. Some darker areas are visible on the planet's face, as well as a hint of its polar ice cap.
A monochrome picture of planet Venus, showing its opaque cloud cover. Since Venus' orbit is inside Earth's orbit, it displays phases similar to the Moon.


#M13 from this morning. #Hercules globular cluster. #NGC6205

Located 22.2 light years away in the Hercules #constellation

Shot on a Canon T6 mounted on a Skywatcher 72mm ED doublet refractor. Approximately 30 minutes of integration time @ 420mm FL / 800 ISO. #astronomy #astrophotography #astrodon
Messier 13


If you're reading this from exoplanet WASP-127b, today's #weather forecast is winds of 33 000 km/h, so you may want to stay inside!

If you missed the news yesterday, here's a video recap of the latest discovery with our Very Large Telescope: https://www.youtube.com/watch?v=S84jjw__zlg

#astrodon #astronomy #astrophysics #space #science


1/ Using our Very Large Telescope (VLT), astronomers have discovered extremely powerful winds pummelling the equator of the giant gas exoplanet WASP-127b, 500 light-years away.

➡️ https://www.eso.org/public/news/eso2502/

Reaching speeds up to 33 000 km/h, the winds make up the fastest jetstream of its kind ever measured on a planet.

In comparison, the fastest wind ever measured in the Solar System was found on Neptune, moving at 1800 km/h.

How did they do it? Keep reading...

Artist's impression by ESO/L. Calçada

#astrodon #astronomy #astrophysics #space #science
Artist’s impression showing WASP-127b, a giant gas planet. The planet takes up almost the full frame, with its atmosphere showing whirling motion all over the planet. Wispy ripples of blueish white mixed with orange imply motion, with white being the dominant colour at the equator and the planet’s poles, and a band of more orange-red between them. In the black background are some tiny white stars.


18/01/2025 - Evening walk to see some stars. It had been a busy day. It was nice to spend the evening in the quiet of the universe. Just us and trillions of stars. Up and round the hill. We had tea with us and our scope. We found a quiet spot, hidden away and watched the night sky turn for a few hours. Temp was close to zero but the stars were worth it.

Photo is M33 Triangulum Galaxy. 2.73 million light-years away and thought to be home to 40 billion stars.

#EveningWalk #NightSky #Astrodon
Photo is M33 Triangulum Galaxy.  2.73 million light-years away and thought to be home to 40 billion stars. The photo is full of stars with the galaxy in the middle. An hour's worth of stacked photos.
Our spot for a few hours. One of us setting up the tripod for the scope in the dark. We did have to move a little soon after, just a short distance to get away from the wind as it was cold and rocking the scope.
An hour past sunset. There's a nice fading yellow/blue light to the sky as it darkens beyond trees. Venus can be seen on the left with a faint Saturn next to it.