Ole Streicher
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olebole.bsky.social
Ole Streicher
@olebole.bsky.social
43 followers 33 following 65 posts
(he/him)
Astronomy, Software, Debian, Open Source
@olebole@mastodon.social
Posts Replies Media Videos
olebole.bsky.social
Presenting the @debianastro.bsky.social poster at #ADASS2025
Debian Astro Poster
November 11, 2025 at 12:26 PM
Reposted by Ole Streicher
sciencex.bsky.social
Analysis of stellar velocities in faint dwarf galaxies indicates their internal dynamics are better explained by dark matter models than by modified gravity theories such as MOND. doi.org/g977ff
Dwarf galaxies tip the scales in favor of dark matter over modified gravity
An international team of researchers led by the Leibniz Institute for Astrophysics Potsdam (AIP) has shed light on a decades-long debate about why galaxies spin faster than expected—and whether this behavior is caused by invisible dark matter or by a collapse of gravity on cosmic scales.
phys.org
October 27, 2025 at 4:48 PM
Reposted by Ole Streicher
4most-eu.bsky.social
First Light for 4MOST!

The 4-metre Multi-Object Spectroscopic Telescope (4MOST) has captured its very first spectra!

Video Credit: AIP/R. de Jong, AIP/K. Riebe, AIP/A. Saviauk, CRAL/J.-K. Krogager
First Light for 4MOST!
YouTube video by 4-meter Multi-Object Spectroscopic Telescope
youtu.be
October 21, 2025 at 12:00 PM
Reposted by Ole Streicher
galacticrave.bsky.social
site visit at the ELT - it is taking shape!
October 19, 2025 at 4:43 PM
olebole.bsky.social
Das Ende einer Ära, die letzte gedruckte #taz in der S-Bahn.
October 17, 2025 at 6:13 AM
olebole.bsky.social
Today, a new #PyRAF version 2.2.3 was released. This is a maintenance release which makes PyRAF compliant to #Python 3.13. Uploaded to PyPI and to #Debian unstable. github.com/iraf-communi...
#IRAF
Release Version 2.2.3 · iraf-community/pyraf
This is a maintenance release that ensures compatibility with Python 3.13. What's Changed Update determination of iraf and IRAFARCH variables by @olebole in #171 Remove IrafHatchFills by @olebole ...
github.com
October 13, 2025 at 7:28 PM
olebole.bsky.social
We continue our presentation of 4MOST surveys: The Thousands an One Magellanic Clounds fields Low and High Resolution Survery (1001MC)

#WorldSpaceWeek #4MOST #magellanicclouds #extragalactic #telescope #astronomy #astrophysics #observatory
Spatial source density distribution of the 1001MC stars in a zenithal equidistant projection
October 9, 2025 at 8:30 AM
olebole.bsky.social
An era is coming to an end (at least for me). I had my first contact with the internet in 1992, namely with #usenet. I have remained (more or less) loyal to it to this day. Now the most respected #nntp server has announced that will shut down:
😢
news.individual.net
News.Individual.NET « News.Individual.NET
news.individual.net
October 1, 2025 at 5:40 PM
Reposted by Ole Streicher
hannaliubakova.bsky.social
#Belarus The regime must reveal information about Mikalai Statkevich. Where is he? How is his health? Why was he released and was later driven away? This is unacceptable and very worrying that the regime is hiding him. Is he alive?
September 29, 2025 at 7:58 AM
olebole.bsky.social
bsky.app/search?q=thi...
bsky.app
September 25, 2025 at 5:47 AM
Reposted by Ole Streicher
sixtus.net
Leute, es ist eine Meme! 🙃
bsky.app/search?q=thi...
bsky.app
September 25, 2025 at 4:58 AM
Reposted by Ole Streicher
4most-eu.bsky.social
Welcome to the official 4-metre Multi-Object Spectroscopic Telescope (4MOST) Bluesky account! Stay tuned for our first-light events coming very soon, and updates on all of the amazing science we will be completing over the years to come!

📷: Y. Beletsky/ESO

#4most #ESO #telescope #astronomy
September 17, 2025 at 12:16 PM
Reposted by Ole Streicher
hannaliubakova.bsky.social
#Belarus Excruciating. This is reportedly opposition leader Mikalai Statkevich in the neutral zone between Belarus and Lithuania. Freed after over five years in prison, he is protesting his de facto deportation. The regime must stop expelling Belarusian citizens from their own country!
September 11, 2025 at 2:35 PM
Reposted by Ole Streicher
ilkokowalczuk.bsky.social
1/Heute vor fünf Jahren, am 7.9.2020, wurde die belarussische Freiheitskämpferin Maria Kolesnikowa von der belarussischen Diktatur festgenommen. Sie ist bis heute eingesperrt, war 600 Tage in Einzelhaft. Mit ihr schmachten weit mehr als 1150 Menschen aus politischen Gründen
September 7, 2025 at 10:18 AM
Reposted by Ole Streicher
ilkokowalczuk.bsky.social
1/Die SED-Diktatur war mehr als Stasi und ein paar durchgeknallte SED-Funktionäre. Diktatur funktioniert, weil viele, ganz viele, sehr viele auf allen Ebenen mitmachen – die meisten wollen davon nichts mehr hören und wissen. Kommunistische Diktatur heißt, Gesellschaft töten,
September 3, 2025 at 12:58 PM
Reposted by Ole Streicher
eso.org
Spot a logo that gives off superhero vibes? 😉

Meet "Fantastic 4MOST", which will soon join our league of extraordinary instruments.

@4most-eu.bsky.social comes packed with superpowers. Discover them: www.eso.org/public/image...

📷 ESO/4MOST/Steffen Frey

🔭 🧪 #instrumentation
This is a top-down image of the front of a new instrument for ESO’s telescopes. At its outer edges is a ring of metal, within which sits a hexagonal structure made of thousands of fibres that are standing upright. From this angle, each one looks like a single point, and some of the fibres have been moved closer together so that they form a pattern within the hexagon. For this image, the pattern is the shape of a large number four.
July 22, 2025 at 7:45 AM
Reposted by Ole Streicher
aippotsdam.bsky.social
Heute wurde am AIP im Rahmen des #PrideMonth die #vielfalt gefeiert! 🏳️‍🌈✨ Mit einen Rainbow-Food-Contest, einem Büchertausch und einem inspirierenden Talk über LGBT+ Inklusivität in der Wissenschaft wurde der #Pride Day zelebriert. 💬📚🧁
July 24, 2025 at 1:45 PM
Reposted by Ole Streicher
anhaeuser.bsky.social
Neu bei @riffreporter.bsky.social „Asyl für #arXiv: Deutsche Bibliothek schützt Wissenschaftsplattform vor Trumps Angriffen“. Interview mit Lambert Heller, warum sein Team ein Backup des wichtigsten Preprintservers angelegt hat. www.riffreporter.de/de/wissen/ar... #wisskomm
Deutsches Backup schützt Wissenschaftsplattform arXiv vor US-Politik
Eine deutsche Wissenschaftsbibliothel sichert die Wissenschaftsplattform arXiv mit 2,4 Millionen Fachartikeln. Ein Gespräch über die Bedeutung dieser Sicherungsmaßnahme.
www.riffreporter.de
July 23, 2025 at 5:07 AM
Reposted by Ole Streicher
aippotsdam.bsky.social
Hochwertige Ausrüstung 🛠️ für ein Riesenteleskop 🔭: der hochauflösende Spektrograph ANDES für das #ELT. Dr. Michael Weber stellt in seinem Vortrag der virtuellen #BabelsbergerSternennächte ✨ das Instrument und einige seiner wissenschaftlichen Ziele vor. youtu.be/xoo5NO4XvZc
Spektrograph für das ELT • ANDES: Entwicklung & Aufbau | Michael Weber
YouTube video by Urknall, Weltall und das Leben
youtu.be
July 17, 2025 at 6:02 PM
Reposted by Ole Streicher
coachhaetscher.bsky.social
Sechs Jahre Kinderfußball. Sechs Jahre die 2014er. Was für eine Reise! Danke für alles: Die tollen Erinnerungen, die Begeisterung, den Mut, das Vertrauen und das Miteinander! 🥰
July 6, 2025 at 1:14 PM
Reposted by Ole Streicher
sci-ffert.bsky.social
Jüngst wurde mir geraten, in meinen Vorlesungen doch Hoffnung & Perspektive zu vermitteln. Gerade künftige Absolventen würden ja mal gebraucht. Aber ich kann das nicht sagen. Nicht mehr. Meine ehrlichsten drei Minuten dazu gab's voriges Semester. Da nun lange Videos gehen, poste ich es hier nochmal.
April 30, 2025 at 3:30 PM
Reposted by Ole Streicher
debianastro.bsky.social
With the upcoming #DebianTrixie release, you can install the standard software for astronomy just with one click during the installation! Test the first release candidate of the installer: www.debian.org/devel/debian...
#AstronomySoftware #Debian
Screenshot of "Software blends selection" screen during Debian 13 "Trixie" installation. It offers (among others) to select "Debian Astro" to install software for professional and hobby astronomers.
May 18, 2025 at 3:16 PM
Reposted by Ole Streicher
aippotsdam.bsky.social
After a long break, the Babelsberg Starry Night finally took place live at the AIP again yesterday 🌟
March 19, 2025 at 2:42 PM
Reposted by Ole Streicher
astropy.org
The Astropy Project is made by our community, for our community. But who are we, exactly?

We want *your* input in the first astropy user survey:

forms.gle/KX2cNuFsQYgV...

Share how you use astropy, how to improve it, and how we can support you and your work! 🧪🔭
2025 Astropy Community Survey
This survey should take less than 15 minutes to complete. Your responses are voluntary and will remain anonymous and confidential. The aggregated, anonymized data will be used to determine developmen...
forms.gle
February 28, 2025 at 1:45 PM
Reposted by Ole Streicher
waldlaeuferin.bsky.social
February 15, 2025 at 9:28 PM