9.25-inch telescopes are for amateur and hobbyist astronomers. On average, they have 2350-2500 mm focal lengths, and a focal ratio of f/10. They provide 33% more than the light-gathering power of an 8″ telescope. Only the Celestron brand offers different types of 9.25 inch-telescopes. You can get 9.25-inch telescopes in the price range of 1,899$-8,320$.
What is a 9.25-inch telescope?
A 9.25-inch telescope refers to a telescope having an aperture (the diameter of the objective lens) of 9.25-inch (235 mm). A 9.25-inch telescope is considered to be in the category of a medium telescope.
What can you see with a 9.25-inch telescope?
- The Moon and its craters .
- The phases of Venus and Mercury.
- Mars and its ice cap.
- Jupiter’s cloud belts and the Giant Red Spot.
- Saturn’s rings and the Cassini Division
- Uranus & Neptune as dots.
- Galaxies like M82 and M31.
- Nebulae like Orion or the Lagoon.
Types and Technical Specifications of 9.25-inch telescopes
Types (Optical Design)
Modified SCT: Example: Celestron 9.25″ EdgeHD Advanced VX Telescope – CE-12033, Celestron CGX-L Equatorial 9.25″ EdgeHD Telescope Bundle – CE-12075, Celestron CGEM-II 925 EdgeHD Telescope Bundle – CE-12018, CE-12056, Celestron CPC Deluxe 925 EdgeHD Telescope Bundle – CE-11008
SCT: Example:Celestron CGEM II· 925 Schmidt-Cassegrain Telescope Bundle – CE- 12011, Celestron CGX 925 Schmidt-Cassegrain Telescope Bundle – CE-12051, Celestron NexStar Evolution 9.25″ Computerized Telescope, Celestron 9.25″ SCT Advanced VX, Celestron CPC 925 Computerized Telescope Bundle – CE-11074-XLT, Celestron C· 9.25 SCT OTA with CGE Mount Plate
Corrected Dall Kirkham: Example:Takahashi Mewlon 250CRS w/ Built-In Corrector & Active Focus
Modified Cassegrain: Example: Celestron 9.25″ EdgeHD OTA with CGE Dovetail Plate
Technical Specifications
Aperture: 9.25-inch (235 mm)
Focal Length: 2350-2500 mm
Focal ratio: f/10
Highest Magnification: 406-555x
Light Gathering Power: 841-1127x
Price: 1,899-8,320$
Images taken with 9.25-inch telescopes
Examples of 9.25-inch telescopes
- Celestron 9.25″ EdgeHD Advanced VX Telescope – CE-12033
- Celestron CGEM II· 925 Schmidt-Cassegrain Telescope Bundle – CE- 12011
- Takahashi Mewlon 250CRS w/ Built-In Corrector & Active Focus (9.75’’ aperture)
- Celestron CGX-L Equatorial 9.25″ EdgeHD Telescope Bundle – CE-12075
- Celestron CGEM-II 925 EdgeHD Telescope Bundle – CE-12018
- Celestron CGX 925 Schmidt-Cassegrain Telescope Bundle – CE-12051
- Celestron CGX 925 EdgeHD Telescope Bundle – CE-12056
- Celestron NexStar Evolution 9.25″ Computerized Telescope
- Celestron 9.25″ SCT Advanced VX Telescope Bundle – CE-12046
- Celestron 9.25″ EdgeHD OTA with CGE Dovetail Plate
- Celestron CPC 925 Computerized Telescope Bundle – CE-11074-XLT
- Celestron C· 9.25 SCT OTA with CGE Mount Plate
- Celestron CPC Deluxe 925 EdgeHD Telescope Bundle – CE-11008
How do 9.25-inch telescopes compare to other size telescopes
9.25-inch vs 10-inch telescope
9.25-inch telescopes have less aperture than the 10-inch scopes. They offer a focal ratio of f/3.9-f/10 whereas the 9.25-inch telescopes provide f/10. Besides, 9.25-inch telescopes offer a focal length of 2350-2500 mm whereas the 10-inch telescopes vary from 1000-2500 mm in focal lengths.
| 9.25-inch telescope | 10-inch telescope | |
| Aperture | 9.25-inch (235 mm) | 10-inch (254 mm) |
| Focal Ratio | f/10 | f/3.9-f/10 |
| Focal Length | 2350-2500 mm | 1000-2500 mm |
| Highest Magnification | 406-555x | 500-600x |
| Price | 1,899-8,320$ | 630-10,000$ |
9.25-inch vs 11-inch telescopes
9.25-inch telescope has less aperture than the 11-inch scopes. 9.25 telescope offers a focal ratio of f/10 whereas the 11-inch telescopes vary from f/2.2-f/10. Besides, 11-inch telescopes offer a focal length of 620-2800 mm whereas the 9.25-inch telescopes start from 2350 mm to 2500 mm in focal lengths. Moreover, 9.25-inch telescopes provide 406-555x the highest magnification, whereas 11-inch telescopes can magnify up to 558-558.8x..
| 9.25-inch telescope | 11-inch telescopes | |
| Aperture | 9.25-inch (235 mm) | 11-inch (279 mm) |
| Focal Ratio | f/10 | f/2.2-f/10 |
| Focal Length | 2350-2500 mm | 620-2800 mm |
| Highest Magnification | 406-555x | 558-558.8x |
| Price | 1,899-8,320$ | 2,400-6,500$ |
9.25-inch vs 12-inch telescope
9.25-inch telescopes provide focal lengths of 2350-2500 mm (f/3.93- f/5), while 12-inch telescopes vary in focal lengths from 1200-1525 mm (f/3.93- f/5). 9.25-inch telescopes provide the highest magnification of 406-555x, whereas 12-inch telescopes can magnify 600x.
| 9.25-inch telescope | 12-inch telescope | |
| Aperture | 9.25-inch (235 mm) | 12-inch (305 mm) |
| Focal Ratio | f/10 | f/3.93- f/5 |
| Focal Length | 2350-2500 mm | 1200-1525 mm |
| Highest Magnification | 406-555x | 600x |
| Price | 1,899-8,320$ | 1,200-2,550$ |
9.25-inch vs 14-inch telescope
14-inch telescopes provide a focal length of 2463-3916 mm with a focal ratio of f/6.7-f/11. In contrast, 9.25-inch telescopes vary from 2350-2500 mm in focal length with a focal ratio of f/10. However, the price of the 14-inch telescope is three times that of the 9.25-inch telescope. Moreover, 9.25-inch telescopes provide 406-555x highest magnification, which increases to 710x-840x in the case of 14-inch telescopes.
| 9.25-inch telescope | 14-inch telescope | |
| Aperture | 9.25-inch (235 mm) | 14-inch (355 mm) |
| Focal Ratio | f/10 | f/6.7-f/11 |
| Focal Length | 2350-2500 mm | 2463-3916 mm |
| Highest Magnification | 406-555x | 710-840x |
| Price | 1,899-8,320$ | 6,000-15,500$ |