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#milkyway

6 posts6 participants0 posts today

Very cool.

News blurb: indiandefencereview.com/ancien

Study abstract and link: sciengine.com/JAHH/doi/10.3724

"The connection between ancient texts, celestial imagery, and modern astronomical findings continues to provide new insights into how ancient civilizations viewed the cosmos...illustrating how cultural depictions of the sky were deeply intertwined with both the practical and spiritual life of ancient Egypt."

Replied in thread

@mina @admin @evelynefoerster

Im Übrigen:

"Others argue that where an object is located or what it is made of do matter and there should not be a concern with dynamics; that is, whether or not an object sweeps up or scatters away its immediate neighbors, or holds them in stable orbits."

🤣

Astronomen scheinen wie Politiker zu sein: können sich nicht einmal auf das Grundlegendste einigen! 🤦🤦‍♂️🤦‍♀️

Und es kommt noch besser:

"There may be billions of #Exoplanets in the #MilkyWay, and some...

On May 4th from last year, we had a scheduled power outage that went from 12am to 8am. That night, I woke up hearing my dad failing to start the generator in the garage just to get our electric fans and chargers work again in our bedroom.

Me and my parents decided to walk to our terrace with my tripod in upstairs, checking to see if the sky is clear so I can do astrophoto stuff that time, while my dad sleeps there for a cool, fresh air. To my surprise, there were no lights around our street so some of the stars and satellites we haven't seen before are now visible than usual (except we had a bright solar light that lighted our terrace's door, aswell as the moon being visible in its Waning Crescent phase but they don't affect my astrophotography by much). Also, bortle scale here was around 2-3 scale that night (normally it is around 5 with power on).

And then me and my mom noticed this dark grey-ish cloud in the sky above our heads, next to the moving clouds being in the way. It was really barely visible to our eyes. I thought I saw a Milky Way for the first time... but it actually is after I opened the Stellarium app on my phone and pointed at it!

Got me excited. So I mounted my phone to my tripod and took several pics of the galactic core before we went back to sleep at 5am, waiting for the electricity to be back. I was amazed by my wonderful photos of it from my phone after checking them :D

I only picked the first and the last on this post because they are the best. For now, these are also my last Milky Way pics I have only seen clearly like that from it. #ThrowbackThursday
(Sorry if it looks like my younger self writing this story lol. English isn't my native language though.)

#tbt #astrophotography #naturephotography #pixelfed #photography #amateurphotography #smartphonephotography #pixelography #googlepixel #pixel7a #teampixel #shotonpixel #astro #nature #wonderful #milkyway #stars #sky #clouds
Milchstrasse
Aussichtspunkt Niesenbänkli in Ringoldswil um 4 Uhr morgens. Es war kalt und ich habe 2-3 Stunden an der gleichen Stelle die Milchstrasse fotografiert, wunderte mich, dass die Sicht durch die Kamera immer trüber wurde, bis ich feststellte, dass sich Raureif auf der Linse gebildet hatte.
http://art.hess.photography/110-miuchschtraass.html

#NikonZ6 #NikonZ #Nikon Z 6 | 20mm | f/1.4 | 5s | 17/04/2021

#hess_photography #photography #fotografie #landscapephotography #landschaftsfotografie #Berge #BernerAlpen #BernerOberland #BerneseAlps #BerneseOberland #Galaxie #galaxy #lake #LakeThun #Milchstrasse #milkyway #mountains #Niesen #Schweiz #Switzerland #Thunersee

Almost the Center of our Galaxy
-----------------------------------------------

I really wanted to get as close as possible to the milky way center as possible for my latitude.
This was as close to the horizon as possible before dawn.
It was worth the struggle of waking up at 3:30 AM at this remote location, because I got to test my new portable wide-angle setup for the first time :)

All details: app.astrobin.com/u/Kassar?i=8h

Continued thread

.. you might want to open the replied post (main-thread) to see the whole thread 🔭 😀

* compressed version of this video:
youtube.com/watch?v=dXAU0gzsPO

This zoom video sequence starts with a broad view of the Milky Way. We then dive into the dusty central region to take a much closer look. There, a swarm of stars orbit around an invisible object: a supermassive black hole, 4.3 million times that of the Sun. As we get closer to it, we see these stars, as observed by the NACO instrument on ESO’s Very Large Telescope (the last observation being from 2019). As we zoom in further, we see stars even closer to the black hole, observed with the GRAVITY instrument on ESO’s Very Large Telescope Interferometry in mid-2021.

More information and download options: eso.org/public/videos/eso2...

Credit:
ESO/GRAVITY collaboration/L. Calçada, N. Risinger (skysurvey.org), DSS. Music: Johan Monel
European Southern Observatory (ESO)

Replied in thread

.. you might want to open the replied post (main-thread) to see the whole thread 🔭 😀

compressed version of the NASA archived video:

An Immersive Visualization of the Galactic Center
Video Credit: NASA, CXC, Pontifical Catholic Univ. of Chile, C. Russell et al.

Explanation:
What if you could look out from the center of our Galaxy -- what might you see? Two scientifically-determined possibilities are shown in the featured video, an immersive 360-degree view which allows you to look around in every direction. The pictured computer simulation is based on infrared data from ESO's Very Large Telescope in Chile and X-ray data from NASA's orbiting Chandra X-ray Observatory. As the video starts, you quickly approach Sgr A*, the supermassive black hole in the Galactic center. Then looking out, this 500-year time-lapse simulation shows glowing gas and many points of light orbiting all around you. Many of these points are young Wolf-Rayet stars that have visible hot winds blowing out into surrounding nebulas. Clouds approaching close become elongated, while objects approaching too close fall in. Toward the video's end the simulation repeats, but this time with the dynamic region surrounding Sgr A* expelling hot gas that pushes back against approaching material.

.. please go to the archived page to enjoy the 360° degree view:
apod.nasa.gov/apod/ap180122.ht

Continued thread

.. you might want to open the replied post (main-thread) to see the whole thread 🔭 😀

The featured picture shows an image of our Milky Way's center by the MeerKAT array of 64 radio dishes in South Africa. Spanning four times the angular size of the Moon (2 degrees), the image is impressively vast, deep, and detailed. Many known sources are shown in clear detail, including many with a prefix of Sgr, since the galactic center is in the direction of the constellation Sagittarius. In our galaxy's center lies Sgr A, found here in the image center, which houses the Milky Way's central supermassive black hole. Other sources in the image are not as well understood, including the Arc, just to the left of Sgr A, and numerous filamentary threads. The inset image shows a small patch recently imaged in infrared light with the James Webb Space Telescope to investigate the effects of magnetic fields on star formation.

The Galactic Center in Radio from MeerKAT
* Image Credit: NASA, ESA, CSA, STScI, SARAO, S. Crowe (UVA), J. Bally (CU), R. Fedriani (IAA-CSIC), I. Heywood (Oxford)
astronomy.as.virginia.edu/
samcroweastro.com/
sarao.ac.za/
stsci.edu
asc-csa.gc.ca/eng/
esa.int/
nasa.gov/

Explanation:
What's happening at the center of our galaxy? It's hard to tell with optical telescopes since visible light is blocked by intervening interstellar dust. In other bands of light, though, such as radio, the galactic center can be imaged and shows itself to be quite an interesting and active place. The featured picture shows an image of our Milky Way's center by the MeerKAT array of 64 radio dishes in South Africa. Spanning four times the angular size of the Moon (2 degrees), the image is impressively vast, deep, and detailed. Many known sources are shown in clear detail, including many with a prefix of Sgr, since the galactic center is in the direction of the constellation Sagittarius. In our galaxy's center lies Sgr A, found here in the image center, which houses the Milky Way's central supermassive black hole. Other sources in the image are not as well understood, including the Arc, just to the left of Sgr A, and numerous filamentary threads. The inset image shows a small patch recently imaged in infrared light with the James Webb Space Telescope to investigate the effects of magnetic fields on star formation.
sarao.ac.za/gallery/meerkat/
webbtelescope.org/contents/med
apod.nasa.gov/apod/ap241124.ht
sarao.ac.za/media-releases/new
apod.nasa.gov/apod/ap020803.ht
en.wikipedia.org/wiki/Sagittar
en.wikipedia.org/wiki/Sagittar

science.nasa.gov/ems/09_visibl
webbtelescope.org/science/the-
mathsisfun.com/geometry/degree
science.nasa.gov/ems/05_radiow

apod.nasa.gov/apod/ap220513.ht
apod.nasa.gov/apod/ap020521.ht

apod.nasa.gov/apod/ap250414.ht