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Category: Perek-2m

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hotstars news Perek-2m

Disentangling the stellar atmosphere and the focused wind in different accretion states of Cygnus X-1

2025-03-202025-03-20 admin

Cygnus X-1 is one of the most famous X-ray binaries in our Galaxy. This system consists of a massive blue supergiant and an invisible companion

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department Perek-2m

The mirror of the Perek 2-m telescope sent to Germany for a new coating

2024-05-242024-05-24 admin

During our tours of the Ondřejov Observatory we always tell you that once every few years the main mirror of the largest Czech telescope is

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department news Perek-2m

Observations and modeling of spectral line asymmetries in stellar flares

2023-01-042023-01-24 admin

Astronomers from Astronomical Institute (AI) in Ondřejov studied the red dwarf star AD Leonis, which is known for its significant flaring activity. They coordinated the

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News

  • Variability of Galactic blue supergiants observed with TESS
  • PLATO – search for the second Earth — a milestone in the preparation of the ESA mission with Czech participation
  • Minister of Transportation Martin Kupka visited Ondřejov Observatory
  • From the internship at the Ondřejov Observatory to the victory in the national competition of SOČ
  • 50 Dra – Am-type twins with additional variability in a non-eclipsing system
  • Lecture for high school students from Benešov
  • International Conference on High Energy Astrophysics IBWS 2025
  • Days of Open Doors at ASU Ondřejov 2025
  • Stellar obliquities of eight close-in gas giant exoplanets
  • HD 144812 – A transition-phase massive star in a binary system

Contact

Head: Brankica Kubátová
Deputy: Martin Jelínek
Secretary: Eva Žďárská
Phone: +420 323 620 226
E-mail: eva.zdarska @ asu.cas.cz

Address:
Fričova 298, 251 65 Ondřejov
Czech Republic

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  •    Astronomical Institute of CAS
  •    Czech Academy of Sciences

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