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Ole Streicher

@olebole.bsky.social
51 followers 34 following 71 posts

(he/him) Astronomy, Software, Debian, Open Source @olebole@mastodon.social

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Reposted by Ole Streicher
Florentine Dömges @fdoemges.bsky.social · 10/05/2026
Alle sagen: CDU und SPD verlieren Wähler an die AfD. Also müssen sie rechter werden. Das klingt logisch. Es ist falsch. Die Wählerströme laufen anders als die Parteistrategen glauben. 🧵
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Debian Astro Pure Blend @debianastro.bsky.social · 24/03/2026
#astrocode #IRAF #ScienceSoftware Random #Debian Astro package of the week is iraf. IRAF is the "Image Reduction and Analysis Facility". The main IRAF distribution includes a good selection of programs for general image processing and graphics. Other external or layered packages are available 1/3⤵
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Ole Streicher @olebole.bsky.social · 14/03/2026
#astrocode
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Ole Streicher @olebole.bsky.social · 14/03/2026
Good news for #IRAF users on a Mac: IRAF can now be installed via #Homebrew! Installation has never been easier: brew tap iraf-community/tap brew install iraf x11iraf Check out the updated installation instructions for more info: iraf-community.github.io/install.html...
iraf-community.github.io
IRAF 2.18.1 Installation Instructions
IRAF maintained by the community
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Reposted by Ole Streicher
Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social · 02/03/2026
Du bist zwischen 11 und 16 Jahre alt und willst Astrophysikerin werden? Komm zum Girls‘ Day zu uns ins AIP. Lerne unsere Forschung kennen, sprich mit Wissenschaftlerinnen, experimentiere mit Infrarot. Mehr Infos und Anmeldung auf aip.de
Werbe-Bild für den Girls' Day. Text: Girls' Day 2026 am AIP / Anmeldung unter www.aip.de. Im Hintergrund ist ein unscharfes Bild von Mädchen an einem Tisch mit Bastelmaterialien zu sehen.
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Reposted by Ole Streicher
4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social · 30/01/2026
After a successful commissioning process, 4MOST has reached the next major milestone before the full survey begins: Operations Rehearsal 4 (OpR4) ✨ Image: Carlos la Fuente launching the first observation for OpR4 (Credit: Jakob Walcher) #4MOST #astronomy #astrophysics
A picture of Carlos la Fuente launching the first observation for OpR4
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Ostkreuz - Kiez fuer Alle @ostkreuz-kiez.bsky.social · 02/12/2025
Der 2. Teil der Verkehrsberuhigung in Friedrichshain wird angegangen. Bald haben wir eine Schulzone mehr 🥳 #verkehrsberuhigung #berlin #schulzone Danke @baxhain.bsky.social 😍
Baustelle an einer Straße Infozettel an einer Ampel von Bezirksamt zum Thema Schulzone
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Ole Streicher @olebole.bsky.social · 11/11/2025
Presenting the @debianastro.bsky.social poster at #ADASS2025
Debian Astro Poster
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Science X / Phys.org @sciencex.bsky.social · 27/10/2025
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
phys.org
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.
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4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social · 21/10/2025
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
youtu.be
First Light for 4MOST!
YouTube video by 4-meter Multi-Object Spectroscopic Telescope
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Matthias Steinmetz @galacticrave.bsky.social · 19/10/2025
site visit at the ELT - it is taking shape!
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Ole Streicher @olebole.bsky.social · 17/10/2025
Das Ende einer Ära, die letzte gedruckte #taz in der S-Bahn.
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Ole Streicher @olebole.bsky.social · 13/10/2025
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
github.com
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 ...
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Ole Streicher @olebole.bsky.social · 09/10/2025
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
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Ole Streicher @olebole.bsky.social · 01/10/2025
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
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Hanna Liubakova @hannaliubakova.bsky.social · 29/09/2025
#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?
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Ole Streicher @olebole.bsky.social · 25/09/2025
bsky.app/search?q=thi...
bsky.app
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Mario Sixtus @sixtus.net · 25/09/2025
Leute, es ist eine Meme! 🙃 bsky.app/search?q=thi...
bsky.app
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4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social · 17/09/2025
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
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Hanna Liubakova @hannaliubakova.bsky.social · 11/09/2025
#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!
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Ilko-Sascha Kowalczuk @ilkokowalczuk.bsky.social · 07/09/2025
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
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Ilko-Sascha Kowalczuk @ilkokowalczuk.bsky.social · 03/09/2025
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,
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ESO @eso.org · 22/07/2025
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.
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Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social · 24/07/2025
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. 💬📚🧁
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Marcus Anhäuser @anhaeuser.bsky.social · 23/07/2025
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
riffreporter.de
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.
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Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social · 17/07/2025
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
youtu.be
Spektrograph für das ELT • ANDES: Entwicklung & Aufbau | Michael Weber
YouTube video by Urknall, Weltall und das Leben
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Sven Hätscher @coachhaetscher.bsky.social · 06/07/2025
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! 🥰
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Sebastian Seiffert @sci-ffert.bsky.social · 30/04/2025
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.
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Debian Astro Pure Blend @debianastro.bsky.social · 18/05/2025
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.
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Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social · 19/03/2025
After a long break, the Babelsberg Starry Night finally took place live at the AIP again yesterday 🌟
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astropy @astropy.org · 28/02/2025
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! 🧪🔭
forms.gle
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...
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Debian Astro Pure Blend @debianastro.bsky.social · 04/02/2025
Random Debian Astro package of the week is python3-astropy. The astropy package contains core functionality and some common tools needed for performing astronomy and astrophysics research with Python. It can be extended by a number of "affiliated packages" that are intended to work with the 1/2⤵
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Marcel S. Pawlowski @8minutesold.bsky.social · 02/02/2025
Happening now: Potsdam bekennt Farbe. The Neuer Markt is full of people protesting against the extreme right and their enablers.
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Ilko-Sascha Kowalczuk @ilkokowalczuk.bsky.social · 21/01/2025
Der exzellente britische Historiker Norman Davies 1995 in der New York Review of Books, Nachdruck Freibeuter 1996/66.
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ESO @eso.org · 10/01/2025
The skies above Paranal are at risk from a proposed industrial megaproject.  This would be located in the vicinity of ESO's Observatory. If constructed, it would irreparably impact astronomical observations. Read more: www.eso.org/public/news/eso2501 🔭  📷 ESO/P. Horálek
eso.org
World's darkest and clearest skies at risk from industrial megaproject
On December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.
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Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social · 04/12/2024
🌌 Welcome to the Bluesky account of the Leibniz Institute for Astrophysics Potsdam (AIP)! 🚀✨ We are dedicated to astrophysical questions, from our Sun to the evolution of the cosmos. Join us for news on recent discoveries, cutting-edge research, new technologies, and upcoming public events! 🌠
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Ole Streicher @olebole.bsky.social · 06/09/2024
This week, I had my 10th anniversary as a #Debian Developer! All that started from wanting to have wcslib as a package. In 2014, I also founded @DebianAstro which now has more than 300 packages ready to use for all sorts of astronomers and astrophysicists.
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Ole Streicher @olebole.bsky.social · 29/04/2024
Few days ago, #Ubuntu 24.04 #Noble Numbat was released. As always, it comes with the latest packages from @debianastro.bsky.social. An important new package is iraf-st4gem with many tasks from #IRAF #STSDAS now thankfully maintained by @usngo.bsky.social. packages.ubuntu.com/noble/iraf-s...
packages.ubuntu.com
Ubuntu – Details of package iraf-st4gem in noble
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Ole Streicher @olebole.bsky.social · 22/04/2024
PyRAF, the #Python interface for #IRAF, had just a new release 2.2.2. Main improvements are for macOS with Cocoa support. On macOS, it is now also a pure Python package, making the installation more robust. pypi.org/project/pyraf/
pypi.org
pyraf
Pythonic interface to IRAF that can be used in place of the existing IRAF CL
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Ole Streicher @olebole.bsky.social · 21/04/2024
I could today successfully buidt #IRAF on a #fedora 40 (beta) system. Very few adjustments were needed to get it compiled with the default compiler flags. Still we look for someone who volunteers to maintain a proper package for this still important #AstronomySoftware piece.
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Ole Streicher @olebole.bsky.social · 10/04/2024
Yesterday, I found (and fixed) an at least 37 years old bug in #IRAF CL. It appeared already in the first IRAF version where we have source code (2.8). If you have an older version, please let me know! #SoftwareArcheology
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Ole Streicher @olebole.bsky.social · 05/04/2024
The new (community) IRAF 2.18 was just released! The major update is the merge of the bugfixes by @usngo.bsky.social / NOIRLab to support the Gemini pipeline on modern systems. Try it while it is hot! github.com/iraf-communi...
github.com
Release Version 2.18 · iraf-community/iraf
Important changes Changes to the version 2.17.1 include: Integration of NOIRLab changes NOIRLab recently published their own 2.18 version with the scope limited to the support of the Gemini data ...
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Debian Astro Pure Blend @debianastro.bsky.social · 02/04/2024
#IRAF #AstronomySoftware #ScienceSoftware #DebianBookworm Random #Debian Astro package of the week is iraf-fitsutil. Several tasks to operate of FITS files and extensions from within IRAF, like copying, extension extraction, conversion etc. The following tasks are available: 1/4⤵
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Ole Streicher @olebole.bsky.social · 17/03/2024
To make installation easier for Apple users, I just uploaded a beta version of the new #IRAF macOS installer! Feedback is welcome! Try it out from here iraf-community.github.io/install.html...
IRAF macOS installer screenshot
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Ole Streicher @olebole.bsky.social · 17/03/2024
To make installation easier for Apple users, I just uploaded a beta version of the new #IRAF macOS installer! Feedback is welcome! Try it out from here iraf-community.github.io/install.html...
IRAF macOS installer screenshot
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Ole Streicher @olebole.bsky.social · 03/03/2024
Preview of what is coming new in (Community) IRAF. for macOS ... I'd need brave testers.
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Ole Streicher @olebole.bsky.social · 26/02/2024
If you still use #IRAF: The online documentation for all IRAF tasks, for selected external packages, the IRAF manuals, release notes, the PyRAF tutorial, and much more is available here: iraf.readthedocs.io
iraf.readthedocs.io
IRAF documentation — IRAF 2.17.1 documentation
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Debian Astro Pure Blend @debianastro.bsky.social · 13/02/2024
Random Debian Astro package of the week is python3-pyraf. PyRAF is a command language for running IRAF tasks in a Python like environment. It works very similar to IRAF CL, but has been updated to allow such things as importing Python modules, GUI parameter editing and help. 1/2⤵
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Ole Streicher @olebole.bsky.social · 12/02/2024
You can actually help to find key themes for the upcoming Astronomical Data Analysis Software & Systems Conference (ADASS) in Malta: www.tricider.com/brainstormin...
tricider.com
Which key themes would you like to see in the ADASS 2024 program? - brainstorming and voting | tricider
Let's do some brainstorming and vote for the best ideas. What do you think?
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