rsdejong.bsky.social
@rsdejong.bsky.social
Reposted
1/ The 4MOST instrument installed on our VISTA telescope in Chile completed its first test observations.

@4most-eu.bsky.social will help us unravel our galactic history, explore dark matter, and more.
www.eso.org/public/annou...

🔭 🧪
#instrumentation
📷 AIP/A. Saviauk
October 21, 2025 at 1:28 PM
Reposted
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
Sneak peek time! 👀

Each dot in this image is a target star or galaxy that will be captured in our First Light! Soon, each of these dots will turn into spectra, revealing the chemical signature of each of these objects!

Image Credit: R. de Jong

#4MOST #astronomy #telescope #observatory #science
October 18, 2025 at 10:15 AM