7-inch telescopes are basically for amateurs though there are some advanced telescopes for professional astronomers with this aperture. Overall, they provide 500-2700 mm focal lengths, and a range of focal ratios from f/2.8-f/15. They can magnify objects 356 times the human eye. They also can resolve double stars at 0.65 arcsec. You can get 7-inch […]
Month: October 2022
6-inch telescopes are basically for amateurs. On average, they provide 162-1800 mm focal lengths, and a range of focal ratios from f/3.9-f/10. They can magnify objects 295-320x times the human eye. They also can resolve double stars at 0.76 arcsec. You can get 6-inch telescopes from different brands in the price range of 310$ – […]
5-inch telescopes are basically for amateur astronomers and kids. On average, they provide 650-1900 mm focal lengths, and a range of focal ratios from f/5-f/15. They can magnify objects 225-260x times the human eye. They also can resolve double stars at 0.91 arcsec. You can get 5-inch telescopes from different brands in the price range […]
4-inch telescopes are basically for amateur astronomers and kids. On average, they provide 450-1350 mm focal lengths, and a range of focal ratios from f/3.9-f/9. They can magnify objects 204-236x times the human eye. They also can resolve double stars at 1.15 arcsec. You can get 4-inch telescopes from different brands in the price range […]
3-inch telescopes are ideal for kids and beginner astronomers. On average, they provide 300-900 mm focal lengths and a range of focal ratios from f/3.9-f/12. They can magnify objects 152-189x times the human eye. You can get 3-inch telescopes from different brands in the price range of 262-5200$. What is a 3-inch telescope? A 3-inch telescope […]
2-inch telescopes are ideal for kids and beginners. On average, they provide 360-900 mm focal lengths and a range of focal ratios from f/5.7-f/12.9. They can magnify objects 122-165x times the human eye. You can get 2-inch telescopes from different brands in the price range of 85-730$. What is a 2-inch telescope? A 2-inch telescope […]
GSkyer 80mm AZ Refractor is an entry-level scope with an 80 mm short focal length. Lightweight and compact size have made it a grab n go telescope. As a beginner scope, it will give fair views at this price range though with some flaws. For better views, you may need to add some accessories too. […]
Orion Skyscanner 100mm Telescope is a ‘grab n go’ telescope of small size and lightweight. It offers high-quality Newtonian reflector optics. Skyscanner 100mm is the best telescope at this low price range. This is designed especially for beginners. But experienced sky gazers also can buy it for an amazing experience at cheaper rates. Advantages and […]
Celestron AstroMaster 114EQ is a beginner’s telescope. It offers an amazing experience to novice astronomers with high-quality optics. The fast and easy setup system provides no hassle to the users. Fully coated optics makes the image sharp and have high contrast. Advantages and Disadvantages of Celestron AstroMaster 114EQ Advantages Fast easy setup does not […]
Hans Lippershey made the first telescope in 1608. The same year Galileo started improving Lippershey’s telescope. Johannes Kepler changed the eyepiece for a telescope in 1611. Modern day telescopes are based on the Keplerian’s design. Newton made the next step with the invention of the reflector. John Dollond is the reason we have commercial telescopes […]