Nikon Action EX 7x35.

The Nikon Action EX 7x35 is a genuinely well-thought-out pair of binoculars for a beginner astronomer who values portability. You get proper Nikon optics in a lightweight package that's small enough to slip into a coat pocket - this is key, because gear you'll actually carry becomes gear you'll actually use on those clear nights.

On your first clear night, expect sharp views through the middle of the field with a genuinely wide field of view (9.3 degrees) that makes it easy to locate what you're looking for in the sky. The 7x magnification is gentle on the arms - you can hold them rock steady for as long as you need, which matters far more than raw brightness when starting out. These are waterproof and sealed with nitrogen gas, so you won't worry about damp British weather or condensation fogging the inside.

The honest limitation is the 35mm objective lens. This means dimmer views in very dark skies compared to 50mm binoculars, and some users find the 7x35 works better for daylight nature-watching or casual evening observing than for serious deep-sky astronomy. If you're planning dedicated stargazing sessions in a dark site, a 7x50 or 10x50 would gather more light. But if you want something that lives in your bag and comes out whenever the sky is clear - clouds often won't wait for the perfect kit - this does exactly that job.

Before buying, check that you have storage space for them in a dry cupboard (they last better with proper care), and consider whether you'll genuinely be observing from a dark-sky location or mostly from suburban skies. From a suburban location, the slight loss of light compared to bigger binoculars won't feel like much of a penalty.