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#galaxy

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Astronomy Picture of the Day

APOD from 2025-04-10

38 Hours with the M81 Group

Over 38 hours, a garden #telescope captured the M81 #galaxy group. Dominant M81 boasts spiral arms and a bright core, while cigar-shaped M82 shows intense star formation due to their billion-year gravitational tussle. Eventually, they'll merge into one galaxy. The image also features NGC 3077 and distant integrated flux nebulae from our Milky Way.

HD image at apod.nasa.gov/apod/ap250410.ht #astronomy #planet #earth

38 Hours with the M81 Group
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Arp Bot 🤖

Hubble Space Telescope image of Arp 147, also known as IC 298.

The clumpy, blue ring in the galaxy on the right likely formed when the companion galaxy to the left crashed through its center. This sent a pressure wave outward, like a ripple in a pond, compressing the right galaxy's gas and triggering the formation of new stars.

Credit: NASA, ESA, and M. Livio (STScI)
Source: hubblesite.org/contents/media/

Two ring-like galaxies. On the left is a galaxy with a bright core surrounded by a yellow ring. There is a gap between the core and ring where the black background of space shows through. The galaxy is tilted so that the circular ring appears oval-shaped. On the right is a another circular galaxy, made mostly of a ring of bright blue dots, which are star clusters. On the bottom left part of the ring is a haze of white stars and orangish dust. The center of the ring is empty and the black background of space shows through. This galaxy looks a little like the writing of the aliens from the movie Arrival.
#ArpGalaxy#Galaxy#Space
Suite du fil
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grobi

This is a compressed version of the video from just under 50MB to approximately 18MB

This video takes the viewer on a journey to Herbig-Haro 49/50, an outflow from a nearby still-forming star, in high-resolution near- and mid-infrared light with the NIRCam and MIRI instruments. The intricate features of the outflow, represented in reddish-orange color, provide detailed clues about how young stars form and how their jet activity affects the environment around them. A chance alignment in this direction of the sky provides a beautiful juxtaposition of this nearby Herbig-Haro object (located within our Milky Way) with a more distant, face-on spiral galaxy in the background.

More information and download options: esawebb.org/videos/weic2506d/

Credit:
NASA, ESA, CSA, STScI, ESO, Digitized Sky Survey 2, unWISE, JPL-Caltech, N. Bartmann (ESA/Webb), E. Slawik, N. Risinger, D. De Martin, D. Lang (Perimeter Institute), M. Zamani (ESA/Webb)
Music:Tonelabs – The Red North (www.tonelabs.com)

#space#galaxy#astrophotography
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grobi

HH 49: Interstellar Jet from Webb
Image Credit: NASA, ESA, CSA, STScI, JWST
esa.int/
science.nasa.gov/mission/webb/
stsci.edu/
asc-csa.gc.ca/eng/
nasa.gov/

Explanation:
What's at the tip of this interstellar jet? First let's consider the jet: it is being expelled by a star system just forming and is cataloged as Herbig-Haro 49 (HH 49). The star system expelling this jet is not visible -- it is off to the lower right. The complex conical structure featured in this infrared image by the James Webb Space Telescope also includes another jet cataloged as HH 50. The fast jet particles impact the surrounding interstellar gas and form shock waves that glow prominently in infrared light -- shown here as reddish-brown ridges. This JWST image also resolved the mystery of the unusual object at HH 49's tip: it is a spiral galaxy far in the distance. The blue center is therefore not one star but many, and the surrounding circular rings are actually spiral arms.
webbtelescope.org/contents/med
apod.nasa.gov/apod/ap070811.ht
thebrighterside.news/post/nasa
en.wikipedia.org/wiki/Herbig%E
ui.adsabs.harvard.edu/abs/2006

youtube.com/watch?v=U_GviglW95
youtube.com/watch?v=J7tPEOVGKk

en.wikipedia.org/wiki/Spiral_a
apod.nasa.gov/apod/ap240101.ht

apod.nasa.gov/apod/ap250409.ht

2025 April 9 A dark starfield is dominated by a red cone-like nebula with its base on the bottom right and extending diagonally through the image. At the peak of the cone toward the upper left is a background spiral galaxy. Please see the explanation for more detailed information. HH 49: Interstellar Jet from Webb Image Credit: NASA, ESA, CSA, STScI, JWST Explanation: What's at the tip of this interstellar jet? First let's consider the jet: it is being expelled by a star system just forming and is cataloged as Herbig-Haro 49 (HH 49). The star system expelling this jet is not visible -- it is off to the lower right. The complex conical structure featured in this infrared image by the James Webb Space Telescope also includes another jet cataloged as HH 50. The fast jet particles impact the surrounding interstellar gas and form shock waves that glow prominently in infrared light -- shown here as reddish-brown ridges. This JWST image also resolved the mystery of the unusual object at HH 49's tip: it is a spiral galaxy far in the distance. The blue center is therefore not one star but many, and the surrounding circular rings are actually spiral arms. Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) NASA Official: Amber Straughn Specific rights apply. NASA Web Privacy, Accessibility, Notices; A service of: ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U.
#space#galaxy#webb
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ᴺⁱˡᶻ 🍸

Ich hätte Interesse, mein #Samsung #Galaxy #s24ultra auf ein #Android #Betriebssystem ohne #Google umzustellen und würde mich gern dazu austauschen.

Was sind eure Tipps und Erfahrungen?

Welche #OS sind gut & komfortabel? Welches #Smartphone ist ab Werk #googlefrei und läuft gut? Was ist mit der #App meiner #Sparkasse?

#unplugTrump ✊️

Ich glaube, hier habe ich schon eine gute Übersicht gefunden:
handyhase.de/magazin/android-a

Handyhase.deAndroid Alternativen: /e/ OS bis Ubuntu – Handy ohne GoogleWelche Android-Alternativen gibt es? Lies hier alles über alternative Betriebssysteme und App-Stores, die ohne Google auskommen.
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XF9
Markarian's Chain

This is a group of galaxies in the Virgo constellation. The brighter ones, including M84 and M86 on the right side, appear to be placed on a curved line. But there are so many background galaxies! I had the image annotated and while it did annotate galaxies that aren't in the image (because they are so dim) it show just how many of these are in there.

This is a target I wanted to shoot for quite some time. Unfortunately it's low, right in a light dome, and mostly obstructed by trees and houses. It just so happend that the timing was near perfect the last week, so all these constraints aren't as serve.

I've taken this one with my Newtonian telescope I'm still working on, While I did figure out the focusing issues and contrast there are still things to tweak and improve.

#astrophotography #deepsky #galaxy
A group of galaxies placed like on a curved line all around are smaller galaxies.
The same picture as before but this time there are names on all these galaxies.
A group of galaxies from the background of the main image
A group of galaxies from the background of the main image
#galaxy
Public
Arp Bot 🤖

Hubble image of Arp 283, also known as NGC 2798 and NGC 2799.

The left galaxy in this interacting pair, NGC 2799, is viewed edge-on. A bridge of star forming regions appears to connect it to its companion on the right, NGC 2798. NGC 2798 has two broad smooth spiral arms or tails without obvious clumps, made of mostly older, yellow stars.

Credit: ESA/Hubble & NASA, SDSS, J. Dalcanton, J. Schmidt
Source: esahubble.org/images/potw2042a/

A pair of interacting galaxies. The galaxy on the left is seen edge-on. It has a bright yellow central core and a slightly warped blue disk that is dotted with star clusters and clumps of dark dust. The edge of the disk arcs to the right, appearing to connect to its companion galaxy. The second galaxy is inclined, but seen closer to face-on. It has a central bar of blue-ish stars that is largely obscured by a haze of yellow stars and dust lanes in the circular core of the galaxy. Two spiral arms emerge from the core, which are wide, poorly defined, and mostly made of yellow older stars, which is unusual for a spiral galaxy.
#ArpGalaxy#Galaxy#Space
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