Astronomy Day
September 27 – Astronomy Day!
The date of the event is unique for each year. In 2025, this date is September 27.
Astronomy Day is unique for each year and is celebrated twice: in spring and autumn.
How is the date determined?
- Spring Astronomy Day falls 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, near the 1st quarter of the Moon.
The entire week that includes this date is called Astronomy Week!
How to celebrate this holiday?
1. Get your telescope out! If you have one – this is the perfect occasion to set it up.
2. Don't have a telescope? No problem! Grab a regular pair of binoculars. With them, you can observe lunar craters, see Jupiter's moons, or notice that some "stars" are actually double star systems.
3. Organize a mini-expedition. Just head out of the city, away from urban light pollution, lay out a blanket, and immerse yourself in contemplating the Milky Way. You'll be amazed at how bright the starry sky can be.
Astronomy Day is not just a date on the calendar. It's a reason to look up and remember that we are part of a grand and beautiful Universe.
Look at the stars, ask questions about the world, and never stop marveling at its cosmic beauty!
Want to learn more about space? Read our articles and keep up with astronomical events!