Celestron AstroMaster 90EQ Telescope
$ 359.95
Celestron AstroMaster 90EQ Telescope
Celestron SKU: 21064 | Helix SKU: CT21064
Overview
- Quick and easy no-tool setup
- Permanently mounted StarPointer
- Erect image optics - Ideal for terrestrial and astronomical use
- Quick release dovetail attachment - no tool setup
- German Equatorial mount with Setting circles - to accurately locate and track sky objects
- Rugged pre-assembled tripod with 1.25" steel tube legs - Provides a rigid and stable platform
- All coated glass optics for clear, crisp images
- Deluxe accessory tray for convenient storage of accessories
- BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images
Description
If you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the AstroMaster Series is for you. Each AstroMaster model is capable of giving correct views of land and sky.
The AstroMaster Series produce bright, clear images of the Moon and planets. It is easy to see the moons of Jupiter and the rings of Saturn with every one of these fine instruments. For views of the brighter deep space objects like galaxies and nebulae, we recommend the larger aperture and light gathering ability of the Newtonian reflectors.
Specifications
| Optical Tube Info: | |
|---|---|
| Optical Design | Refractor |
| Aperture (mm) | 90 mm (3.54 in) |
| Focal Length | 1000 mm (39 in) |
| Focal Ratio | 11 |
| Focal Length of Eyepiece 1 (mm) | 20 mm (0.79 in) |
| Magnification of Eyepiece 1 | 50 x |
| Focal Length of Eyepiece 2 (mm) | 10 mm (0.39 in) |
| Magnification of Eyepiece 2 | 100 x |
| Finderscope | Built-on StarPointer |
| Star Diagonal | Erect Image Diagonal - 1.25" |
| Mount Info: | |
| Mount Type | CG-3 Equatorial |
| Tripod | 1.25" steel tube legs |
| Highest Useful Magnification | 213 x |
| Lowest Useful Magnification | 13 x |
| Limiting Stellar Magnitude | 12.3 |
| Resolution (Rayleigh) | 1.55 arc seconds |
| Resolution (Dawes) | 1.29 arc seconds |
| Light Gathering Power (Compared to human eye) | 165 x |
| Apparent Field of View | 1 ° |
| Linear Field of View (@1000 yds) | 53 ft (16 m) |
| Optical Coatings | Multi Coated |
| Optical Tube Length | 36 in (914 mm) |
| Warranty | 2-year Telescope Warranty |
Celestron AstroMaster LT 60AZ Telescope
$ 109.95
Celestron AstroMaster LT 60AZ Telescope
Celestron SKU: 21073 | Helix SKU: CT21073
Overview
- Quick and easy no-tool setup
- Permanently mounted StarPointer for convenience
- Quick release dovetail attachment
- Pan handle Alt-Az control with clutch for smooth and acurate pointing
- Rugged pre-assembled tripod with steel tube legs provides a rigid and stable platform
- All coated glass optics for clear, crisp images
- Deluxe accessory tray for convenient and accessible storage of accessories
- BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images
Description
Looking for a portable and easy to assemble telescope for celestial viewing? Then the AstroMaster Series is just for you! The AstroMaster Series produces bright, clear images of the Moon and planets. Easily observe the belts and moons of Jupiter and the rings of Saturn with every one of these fine instruments. For breathtaking views of brighter deepspace objects like galaxies and nebulae, we recommend the larger aperture and light-gathering ability of the Newtonian Reflector.
Specifications
| Aperture (mm) | 60 mm (2.36 in) |
| Apparent Field of View | 1.7 " |
| Finderscope | Built-on StarPointer |
| Focal Length | 700 mm (28 in) |
| Focal Length of Eyepiece 1 ... | 20 mm (0.79 in) |
| Focal Length of Eyepiece 2 ... | 10 mm (0.39 in) |
| Focal Ratio | 12 |
| Highest Useful Magnification | 142 x |
| Light Gathering Power (Comp... | 73 x |
| Limiting Stellar Magnitude | 11.4 |
| Linear Field of View (@1000... | 89 ft (27 m) |
| Lowest Useful Magnification | 8.57 x |
| Magnification of Eyepiece 1 | 35 x |
| Magnification of Eyepiece 2 | 70 x |
| Mount Info: | N.A. |
| Mount Type | Altazimuth |
| Optical Coatings | Fully-Coated |
| Optical Design | Refractor |
| Optical Tube Info: | N.A. |
| Optical Tube Length | 28 in (711 mm) |
| Resolution (Dawes) | 1.93 arc seconds |
| Resolution (Rayleigh) | 2.32 arc seconds |
| Telescope Type | Manual |
| Total Telescope Kit Weight | 13 lbs (5.9 kg) |
| Tripod | 1" steel tubes |
| Warranty | 2-year Telescope Warranty |
Celestron Oxygen III Narrowband Filter - 1.25"
$ 94.95
Celestron Oxygen III Narrowband Filter - 1.25"
Celstron SKU: 93623 | Helix SKU: CT93623
Overview
The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects.
Each filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.
Celestron T-Adapter - 1.25
$ 28.95
Celestron T-Adapter - 1.25
Overview
The Celestron Universal T-Adapter connects a DSLR or SLR camera body to a telescope with a 1.25” focuser or eyepiece adapter installed. The T-Threads on the top of the Universal T-Adapter screw into a T-Ring (sold separately) that is designed to attach to the brand-specific mounting flange of your camera. The barrel end of the T-Adapter slides into the focuser, just like an eyepiece, and locks into place with the focuser or eyepiece adapter thumbscrew.
Please note that some telescopes, especially “fast” refractors and most Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these instances, we recommend using the Universal Barlow & T-Adapter (#93640), which will double the magnification, but will allow the telescope to reach focus.
Prime focus photography is popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.
Specifications
| California Residents | View Proposition 65 Warning |
