The Best Astronomy Apps For Identifying Sky Objects

With the help of night-sky apps, you can take your astronomy hobby to the next level and deepen your understanding and appreciation of the universe. Here I look at 10 popular apps for exploring the night sky. As a backyard astronomer, I find, apart from using hardcopy sky maps and a planisphere, having a relevant … Read more

From Bak4 vs BK7: Which Prism Glass Is Right for You?

When choosing binoculars or spotting scopes, you’ll notice different glass types mentioned. Which glass is better for image quality? BaK-4 offers a brighter and rounded image compared to BK-7 but is more expensive of the two. The K-9 type is equivalent to BK-7. Prism Glass Types You’ll find different types of prism glass in binoculars, … Read more

Difference In Multiple Optical Coatings: Fully or Ultra-Wide Band?

Are you ready for the ultimate showdown in optical coatings? In one corner, we have Fully Broadband, boasting its wide range of benefits. And in the other corner, we have Ultra-Wide Band, claiming its superiority in clarity and contrast. Let’s explore the pros and cons of each contender and see who comes out on top! … Read more

Which Is The Best Optical Coating For Astronomy: Explained

When choosing telescope eyepieces or binoculars you’ll likely come across different types of optical coatings and wonder what’s the best optical coating for astronomy. If like me, you as a novice backyard astronomer may find it confusing knowing what each means for the view you get through your instrument. The following is what I’ve since … Read more

The Secrets Behind the Twinkling of Stars: What They Reveal

Why do stars twinkle? Stars appear to twinkle because of the atmospheric turbulence that’s everywhere blanketing the Earth, causing the pinpoint of light emitted by the star to flicker. Stars twinkle because of turbulence in our atmospheric — different currents, temperature, and density between atmospheric layers. These irregularities distort the starlight passing through, causing its … Read more