Ole Streicher's Avatar

Ole Streicher

@olebole.bsky.social

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

43 Followers  |  33 Following  |  66 Posts  |  Joined: 27.09.2023  |  2.0663

Latest posts by olebole.bsky.social on Bluesky

GEMINI v1.17 Release Notes

The Gemini release notes come with

"Note that the testing with Community PyRAF has highlighted issues with PyRAF itself when run with 64-bit binaries"
iraf.noirlab.edu/gemini_v17_r...

However, no issue was raised for this in the PyRAF repository.
May I ask to open a bug so that it can be fixed?

20.11.2025 08:25 — 👍 1    🔁 0    💬 0    📌 0
Debian Astro Poster

Debian Astro Poster

Presenting the @debianastro.bsky.social poster at #ADASS2025

11.11.2025 12:26 — 👍 2    🔁 1    💬 0    📌 0
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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.

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

27.10.2025 12:48 — 👍 2    🔁 3    💬 0    📌 0
First Light for 4MOST!
YouTube video by 4-meter Multi-Object Spectroscopic Telescope First Light for 4MOST!

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

21.10.2025 12:00 — 👍 31    🔁 16    💬 3    📌 5
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site visit at the ELT - it is taking shape!

19.10.2025 16:43 — 👍 18    🔁 8    💬 0    📌 0
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Das Ende einer Ära, die letzte gedruckte #taz in der S-Bahn.

17.10.2025 06:13 — 👍 0    🔁 0    💬 0    📌 0
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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 ...

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

13.10.2025 19:28 — 👍 1    🔁 2    💬 0    📌 0

Covering 1,000 square degrees of sky, this survey provides an invaluable dataset for understanding our nearest neighbours.

www.eso.org/sci/publicat...

09.10.2025 08:32 — 👍 0    🔁 0    💬 0    📌 0

We are mapping the stars on the Magellanic Clouds to uncover their formation and interaction history.

The 1001MC survey will collect spectra for around 500,000 stars, measureing velocities ane elemental abundances.

09.10.2025 08:32 — 👍 0    🔁 0    💬 1    📌 0
Spatial source density distribution of the 1001MC stars in a zenithal equidistant projection

Spatial source density distribution of the 1001MC stars in a zenithal equidistant projection

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

09.10.2025 08:32 — 👍 2    🔁 0    💬 1    📌 0
News.Individual.NET « News.Individual.NET

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

01.10.2025 17:40 — 👍 0    🔁 0    💬 0    📌 0

#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?

29.09.2025 07:58 — 👍 13    🔁 5    💬 0    📌 0

bsky.app/search?q=thi...

25.09.2025 05:47 — 👍 0    🔁 0    💬 0    📌 0

Leute, es ist eine Meme! 🙃
bsky.app/search?q=thi...

25.09.2025 04:58 — 👍 96    🔁 15    💬 16    📌 1
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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

17.09.2025 12:15 — 👍 8    🔁 6    💬 0    📌 2
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#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!

11.09.2025 14:35 — 👍 24    🔁 9    💬 0    📌 1
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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

07.09.2025 10:18 — 👍 309    🔁 104    💬 5    📌 1
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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,

03.09.2025 12:58 — 👍 197    🔁 60    💬 6    📌 8
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.

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.

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

22.07.2025 07:45 — 👍 26    🔁 11    💬 1    📌 0
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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. 💬📚🧁

24.07.2025 13:45 — 👍 6    🔁 3    💬 0    📌 0
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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.

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

23.07.2025 05:07 — 👍 10    🔁 6    💬 0    📌 1
Spektrograph für das ELT • ANDES: Entwicklung & Aufbau | Michael Weber
YouTube video by Urknall, Weltall und das Leben Spektrograph für das ELT • ANDES: Entwicklung & Aufbau | Michael Weber

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

17.07.2025 18:02 — 👍 0    🔁 1    💬 1    📌 0

It depends on what you mean with "standard astronomical software". Most Open Source software is portable. IRAF is there, DS9 is, most Python packages (Astropy&Co) are, … ESO-MIDAS could work but may need complilation; same for SourceExtractor. TOPCAT should just work as well as other Java packages.

07.07.2025 07:19 — 👍 1    🔁 0    💬 1    📌 0
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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! 🥰

06.07.2025 13:14 — 👍 8    🔁 1    💬 0    📌 0
Wayback Machine

Is the original available in web.archive.org ? Then I would adjust the link to there.

05.07.2025 12:04 — 👍 1    🔁 0    💬 1    📌 0

Ich werde nichts verraten 🤫

26.06.2025 14:56 — 👍 1    🔁 0    💬 0    📌 0
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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.

30.04.2025 15:30 — 👍 3016    🔁 1561    💬 126    📌 148
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.

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.

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

18.05.2025 15:16 — 👍 2    🔁 1    💬 0    📌 0
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IRAF 2.18 Installation Instructions IRAF maintained by the community

On (Debian/Ubuntu/Mint…) Linux systems, it is just an "sudo apt install iraf", and on Macs there is an installer. As I am just about to prepare a new version: Could you tell more about the challenges you had? Maybe things can be fixed?

28.03.2025 22:08 — 👍 0    🔁 0    💬 0    📌 0
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After a long break, the Babelsberg Starry Night finally took place live at the AIP again yesterday 🌟

19.03.2025 14:42 — 👍 6    🔁 2    💬 0    📌 0

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