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NATIONAL PARK FOUNDATION FIRSTSCOPE TELESCOPE
| Kode | 22025 |
| Stok | Tersedia (1) |
| Kategori | Teleskop Celestron |
Inden
NATIONAL PARK FOUNDATION FIRSTSCOPE TELESCOPE
NATIONAL PARK FOUNDATION FIRSTSCOPE TELESCOPE
- Special edition National Park Foundation wrap on optical tube
- Lightweight and portable, a great grab-and-go telescope
- Simple design makes it easy for beginners to use
- No-tool setup means you are observing in no time
- Includes two eyepieces, free SkyPortal mobile app and National Parks Guidebook download
Discover the hobby of astronomy with the National Park Foundation FirstScope. It doesn’t get much simpler or more portable than the FirstScope’s tabletop Dobsonian design. Just remove it from the box, insert an eyepiece, and you’re ready to view the Moon, planets, nebulae, and more! click here
The National Park Foundation FirstScope’s Newtonian reflector optical system features a spherical glass mirror with a generous 76 mm of aperture. You’ll get bright, sharp views of celestial objects and observe the Moon’s mountains and craters in crisp detail. Thanks to the National Park Foundation FirstScope’s wide field of view, you’ll be able to observe expansive views of the sky, which include open star clusters, or favorite deep-sky objects like the Orion Nebula.
This special edition of our bestselling FirstScope weighs just 4.3 lbs, making it the perfect companion for camping trips and all your outdoor adventures.
In support of the National Park Foundation in its mission to preserve America’s National Parks, the telescope tube is adorned with a custom National Park Foundation wrap. When not in use, this unique telescope is stylish enough to be a decorative fixture on your bookshelf or desk. You’ll also receive a free download of the National Parks Guidebook, and the SkyPortal planetarium app for your iPhone, iPad, or Android device.
Your purchase of the National Park Foundation FirstScope supports the National Park Foundation in its mission to preserve America’s National Parks.
| Optical Design: | Newtonian Reflector |
| Aperture: | 76mm (3″) |
| Focal Length: | 300mm (11.81″) |
| Focal Ratio: | f/4 |
| Mirror Type: | Spherical |
| Optical Coatings: | Aluminum w/SiO2 |
| Secondary Obstruction: | 28mm (1.10″), 36% by diameter, 13.5% by area |
| Focal Length of Eyepiece 1: | 20mm (.78″) Kellner (1.25″) |
| Magnification of Eyepiece 1: | 15x |
| Focal Length of Eyepiece 2: | 10mm (.39″) Kellner (1.25″) |
| Magnification of Eyepiece 2: | 30x |
| Finderscope: | None |
| Resolution (Rayleigh): | 1.83 arc seconds |
| Resolution (Dawes): | 1.53 arc seconds |
| Light Gathering Power: | 118x the unaided eye |
| Highest Useful Magnification: | 180x |
| Lowest Useful Magnification: | 11x |
| Limiting Stellar Magnitude: | 11.9 |
| MOUNT INFO: | |
|---|---|
| Tripod: | None |
| Optical Tube Length: | 254mm (10″) |
| Total Telescope Kit Weight: | 4.3 lbs (1.95 kg) |
| Solar Warning |
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NATIONAL PARK FOUNDATION FIRSTSCOPE TELESCOPE
| Berat | 10000 gram |
| Kondisi | Baru |
| Dilihat | 201 kali |
| Diskusi | Belum ada komentar |
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