Melancholia (1539) by Hans Sebald Beham.

Source: The Metropolitan Museum

https://pdimagearchive.org/images/ff99bb54-cc92-4428-8f1a-c40a076537db

#mathematics #perspective #euclid #sitting #polyhedra #geometry #melancholy #artistry #art #publicdomain

The Perseus Cluster

In a vain attempt to convince my readership that I know anything about observational astronomy, I thought I’d share this image of the central regions of the Perseus Cluster (also known as Abell 426) made by my final-year project students:

The image was taken last November using the 1.20m reflecting telescope at the Observatoire de Haute-Provence where the final-year astrophysics students from Maynooth spent a week last November on a field trip taking various observations. The exposure was 240 seconds and the field of view is about 15 arcminutes on a side. Most of the objects in the image are galaxies, rather than stars.

I asked my students to look at this cluster (which is about 10 degrees across), partly because it appears near the Zenith in November so would be a good target, partly because it is nearby so the galaxies in it are therefore quite bright, and partly because it was observed by Euclid and featured among the Early Release Observations. The Euclid telescope is also 1.20m in diameter, but because it has a very fancy camera and is in space, Euclid reveals far more galaxies but I was nevertheless impressed at how well this turned out!

#ESAEuclid was launched 1000 days ago. 🥳

#ESA has already released #Euclid's Q1 dataset, Q2 (in the Galactic Bulge) and ~1900 deg² extragalactic data in DR1 will follow later this year. All instruments are healthy, satellite is working fine.

🔭 🎉 🛰️

#science #space #astronomy

#KnowledgeByte: The #Dark #Universe is the part of the universe that is not directly observable, including dark energy and dark matter.

There are several launched and planned missions to know more about the Dark Universe. #ESA #Euclid mission is probably the most prominent of these.

https://knowledgezone.co.in/posts/Search-for-the-Dark-Universe-65ffc003e60d1c294acac2bb

Are you interested in spacecraft models? Then you now have the chance to 3d-print your own #Euclid satellite! You can download all files for your personal version, including detailed assembly instructions:

https://www.euclid-ec.org/public/3d-model/

Scale is 1:16 (~30cm tall) for printing on any printer with a min. 200mm print bed.

Show us your models and tweaks with the hashtag #EuclidAtHome.

#ESAEuclid #ESA #space #astronomy #3dprinting