Matthias Rauls

Toll geschriebener, sehr interessanter und informativer Text!

Möglicherweise nicht mitgerechnet: Posts in den "sozialen" Medien und Chats. Aber wenn man für "Outreach" verantwortlich ist: sind solche Zahlen dann nicht zu erwarten?

Unaere europäischen Hörgewohnheiten machen es leider schwer, die Feinheiten / das Herausragende an so einem Musikstück zu erfassen. Aber es spricht trotzdem etwas an, wenn man sich darauf einlässt.

A gas nebula glowing in intensive blue and red light in front of a star-spangled milkyway.

A few thousand years ago, the star at the center of the Dumbbell Nebula (Messier 27) ejected its outer gas envelope at the end of its life, which it now illuminates from within. This #astrophotography was exposed for one hour near full moon with my #CelestronOrigin and developed in Pixinsight.

Taupunkte bis 30°C - um Himmels Willen! 🥵

Den Artikel zur tunebaren Schmalbandfotografie der Sonne fand ich beeindruckend. Die Sonne im Licht einer Helium-Linie - wann hat man so etwas schon mal (von Amateuren) gesehen? Wahnsinn, was manche "Amateure" hinkriegen!

In front of a dark sky colorful stars shine together with the blueish-green-red gas remanants of a dying dwarf star. The scene is decorated with a tine spiral galaxy in the far distance.

Two very different objects shine in this #astrophotography with my #CelestronOrigin. In Ring Nebula M57 in constellation Lyra, an ejected gas shell glows in the hard UV light of a 75000K hot dwarf star from 2300LY. The galaxy next to it (IC1296, 250Mio LY) is larger than our milkyway but very faint.

😱

Heute gelernt: Die physikalischen Einheiten-Vorsätze kommen zum Teil aus dem Dänischen. Femten als dänisches Wort für 15 wurde zur Vorsilbe "Femto", wobei z.B. ein Femtometer 10 hoch minus 15 Meter sind. Analog bei atten, dänisches Wort für 18, ein Attometer sind 10 hoch minus 18 Meter.

Gas clouds in the milky way are glowing in an intense blue which contrast with the brownish clours of surrounding molecular clouds.

The Iris Nebula (NGC7023) bears its name because gas clouds reflect the bluish light of very hot neighboring stars. It is surrounded by molecular dust clouds with embedded brownish carbon compounds. This #astrophotography with my Celestron Origin was exposed for 160min and developed in Pixinsight.

The Presidents Budget Request for NASA is out. It’s a bloodbath

Canceled are DAVINCI, VERITAS, Juno, OSIRIS-APEX, US participation in ExoMars and EnVision…

Huge cut to R&A. No funding to begin development of the Uranus Orbiter.

If you’ve ever cared about NASA, time to contact congress.

Not good news for gravitational-wave or multimessenger astronomy "In FY 2026 NSF will operate only one of the two [LIGO] sites and will support a reduced level for technology development"

☄️⚛️🧪🔭

A galaxy with blueish spiral arms and a large dark dust band around its yellow-brownish core, dubbed the "Blach Exe Galaxy".

Galaxy Messier 64 at a distance of 24Mio LY is also known as "Black-Eye Galaxy" because of its characteristically shaped dust band. This #astrophotography with my @celestronuniverse.bsky.social Origin telescope is based on an exposure time just under half an hour and was developed in #Pixinsight.

Ich hab mir gedacht, ich erkläre heute mal diese Kurven, die ich fast jeden Tag in meiner Tagesübersicht als Tweet 3/5 mitschicke.

Abgesehen davon, dass sie sehr bunt sind, widerlegen sie nämlich einige weit verbreitete Vorurteile zum Stand der #Energiewende in Deutschland...

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Galaxy M104 is also known as the “Sombrero Galaxy” because of its striking shape. With an exposure time of 140 minutes, this #astrophotography with my #Celestron #Origin shows numerous globular clusters in the galaxy's halo, structures in the dust disk and many faint galaxies in the background.

Vielen Dank für diese kompakte, klare Darstellung!

apod.1571698092.bin

#apod 2025-05-07
Galaxy Wars: M81 versus M82
Image Credit:
Collaborative Astrophotography Team (CAT)

Web page: https://apod.nasa.gov/apod/ap250507.html

Two interacting galaxies glow in the colors of young and hot blueish stars, the yellowish tone of old and mature stars and exhibit magenta colored blobs of of excited hydrogen atom nebulae.

The “Whirlpool Galaxy” M51, about 24Mio LY away, is subject to strong gravitational interactions with its companion galaxy. Countless stars are torn out of both galaxies and form extensive tidal tails. This #astrophotography image was made from 2.5h of data with my #Celestron #Origin in #Pixinsight.

M42 is a blue-red glowing emission nebula in the constellation orion, photographed with a Celestron Origin smart telescope.

Time for a late winter memory of my first deep sky object which I exposed for about 30 minutes with my #Celestron #Origin. The large Orion Nebula M42, birthplace for many new stars and planets, paints a fantastic landscape in the winter evening sky, where the eye can go for a walk. #astrophotography

Galaxy NGC 2403 "Mini Triangulum". 8 million light years away ! Shot from light polluted skies of east Leeds over the last two weeks of March. 16hrs 47mins of data used. #Astrophotography #Astronomy

The ring of distinctly reddish glowing "nests" around the edge of the galaxy disk has something very touching and mysterious about it!

Globular star cluster with Messier 3 with hundreds of thousands stars, 34,000 light years from earth.

A close-up view of the globular cluster, where 500.000 stars are crowding within a shere of just 125 light yeras.

In Globular star cluster M3, around 500,000 stars are crowding within just 125 light years. This #astrophotography image taken with my #Celestron #Origin lets you recognize a mixture of old, red giant stars and “blue stragglers”, which were formed by mass exchange or even mergers between two stars.

The Trump regime is now using US Attorneys to intimidate academic journals by sending them letters demanding they explain how they ensure ‘viewpoint diversity.’ Journal editors should be public about this and coordinate to refuse to comply with these fascist tactics.

Danke, das ist mir auch wichtig! Wenn man eine Google-Bildersuche nach dem Rosettennebel macht und sich als große Galerie anzeigen lässt kann man allein vom Hingucken "Augenkrebs" bekommen ... 🙈

A cluster of a few thousand stars imbedded in a colorful nebulosity in the constellation of Monoceros. Captured with the #Origin smart telescope by #Celestron.

Star cluster NGC2244 formed only a few million years ago from the gas of the Rosette Nebula, which it now stimulates to glow from within with its radiation. 30min exposure with my #Celestron #Origin reveal a variety of nebula knots from which stars are still forming today. #astrophotography

Did you know how much of the power generation capacity added each year world-wide was in renewables?

2022 it was 80 %
2023 it was 86 %
2024 it was 92,5 %

Not because the whole world suddenly turned „woke“, but because it’s the cheapest!

A light blue diagram depicting the sea, with the water's surface at the top, and just below it is an outline of the Mary Rose, with the depth (12m, 40ft or 6.7 fathoms). There is a line showing the seabed, which takes a rapid dive into the vertical...

On the anniversary of the sinking of the Titanic, we thought we'd answer a question that's often asked,

"If they raised the Mary Rose, why not raise the Titanic?"

Allow our scaled diagram to explain...

Asteroid (8) Flora draws a short streak of light while it passes over galaxy NGC3628. A little over 1h of exposure with my #Celestron #Origin.

In the night of 10 to 11 April, asteroid (8) Flora passed over galaxy NGC 3628 (the ‘Hamburger Galaxy’), part of the Leo triplet. During the exposure of just over an hour with my #Celestron #Origin, the asteroid drew a small streak across the long axis of the galaxy. #astrophotography

So geht Wertschätzung des Teams und der Schultern, auf denen es steht. Schöne Web-Seite!

The Celestron Origin is a 6"/f2.2 RASA type smart telescope (i.e. computerized) with an integrated camera that was introduced early in 2024.