Astronomy Day
September 27 – Astronomy Day!
The date of this event varies each year, and in 2025, it falls on 27 September.
Astronomy Day is celebrated twice a year: once in spring and once in autumn.
How is the date determined?
- Spring Astronomy Day occurs on a Saturday between mid-April and mid-May, close to the first quarter of the Moon.
- The autumn celebration takes place on a Saturday from mid-September to mid-October, also near the first quarter of the Moon.
The entire week surrounding this date is known as Astronomy Week!
How to celebrate this holiday?
1. Get your telescope out! If you own one, this is the perfect occasion to set it up and explore the night sky.
2. No telescope? No problem! Grab a pair of binoculars instead. With them, you can observe lunar craters, see Jupiter's moons, or discover that some "stars" are actually double star systems.
3. Organise a mini-expedition. Head out of the city, away from urban light pollution. Lay out a blanket and immerse yourself in the contemplation of the Milky Way. You'll be amazed at how bright the starry sky can be.
Astronomy Day is more than just a date on the calendar; it's an invitation to look up and remember that we are part of a vast and beautiful Universe.
Gaze at the stars, ask questions about the cosmos, and never stop marveling at its wonders!
Want to learn more about space? Read our articles and keep up with astronomical events!