BRESSER Polaris-I 102/460: bright beginner telescope for clear views of the Milky Way & star fields.
- Bright wide-field telescope for beginners with 102 mm aperture and 460 mm focal length
- Short focal ratio of F/4.5 for an especially bright image
- Ideal for the Milky Way, large star fields and extended gas nebulae
- Classic Fraunhofer achromatic refractor
- Equatorial EQ3 mount on a height-adjustable aluminium tripod
- Compact dimensions – perfectly suited as a travel telescope
- 2-inch focuser (50.8 mm) with adapter to 1.25 inches (31.7 mm)
- Two eyepieces (4 mm/20 mm) and 3x Barlow lens for variable magnifications
- LED red dot finder for quickly locating objects in the sky
- Introduction to astrophotography with a practical smartphone camera adapter
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Read nowFAQ - Frequently Asked Questions
- Alt-azimuth: easy to use, moves horizontally and vertically
- Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography
- Moon: from 30 mm
- Planets: from 100 mm
- Deep sky: from 150 mm
Product information "BRESSER Polaris-I 102/460 EQ3 Fast Refractor Telescope with Smartphone Adapter"
Bright observations: what does the short focal ratio offer?
What exactly does the focal ratio of a telescope mean? It describes the ratio between aperture and focal length, in this case 102 mm to 460 mm. With this fast entry-level telescope, this results in a value of f/4.5 – an exceptionally short ratio. The shorter this value, the more light the optics collect at low magnification. You benefit from this especially when observing the Milky Way, large star clusters and extended gas nebulae. Even the North America Nebula appears surprisingly clearly under dark skies. Your journeys through the night sky become a bright experience.
Classic refractor telescope type for an easy start
This achromatic refractor features the classic Fraunhofer design. This exact design makes handling particularly straightforward. Children and astronomy beginners can quickly find their way around the night sky with it. The precise coating of the lens optics always delivers a sharp image. This makes getting started with the hobby of astronomy wonderfully easy.
Set up, polar align, immerse yourself – mount and tripod
Once you have found the perfect observation spot, you mount the tube on the height-adjustable aluminium tripod. The equatorial EQ3 mount provides a decisive advantage here. But what distinguishes an equatorial mount from an alt-azimuth mount? With the equatorial version, you align just one axis parallel to the Earth’s axis, roughly towards Polaris, the Pole Star. After that, you compensate for the movement of the stars very simply using this one axis. Two flexible slow-motion controls ensure sensitive tracking. Anyone who would like even more convenient tracking can optionally upgrade with the suitable tracking motor. Your equipment also has a secure place on the accessory tray between the tripod legs.
Perfectly equipped for your first nights under the stars
The accessories included already make this set a complete companion for clear nights. The LED red dot finder projects a red dot onto a small screen and shows you the exact target direction. This helps you find celestial objects again much more quickly. With the two eyepieces (4 mm and 20 mm), you can switch between different magnifications in no time. The 3x Barlow lens additionally triples these values for even more detail. Thanks to the standard 31.7 mm barrel diameter, a wide selection of other eyepieces also fits. The 90-degree diagonal mirror provides comfortable viewing, even when the tube is pointing steeply upwards. On your next camping trip under dark rural skies, this travel telescope reveals its full potential. With the smartphone adapter, you can capture your first astrophotography successes of the Moon and planets directly in the image.
Start your personal journey through the Milky Way today with the BRESSER Polaris-I 102/460 EQ3 Refractor Telescope!
| Angular resolution (arc seconds): | 1.35 |
|---|---|
| Aperture ratio: | 4.5 |
| Batteries included: | Yes |
| Batteries required: | Yes |
| Colour: | silver/black |
| Compass: | No |
| ED glass: | No |
| Extended warranty (years): | 5 |
| Eyepiece Barrel Diameter (mm): | 31.7 |
| Field of application [Telescopes]: | Deep Sky Observation , Deep Sky Photography , Lunar observation , Lunar photography , Solar observation |
| Finderscope: | LED-Red Dot Finder |
| Focal length (mm): | 460 |
| Magnification from: | 23 |
| Material: | Aluminium |
| Material OTA: | Metal |
| Material tripod 3): | Aluminium |
| Maximum recommended magnification: | 204 |
| Mirror/Lens diam. (mm): | 102 |
| Mount Type [Telescopes]: | German/Equatorial Mount |
| Net Weight total (incl. accessories) (g): | 8100 |
| Optical design: | Achromatic Refractor |
| Power supply 1): | 3V Batteries |
| Power supply unit included: | No |
| Product Family [Telescopes]: | Refractor telescope |
| Reticle: | No |
| Target Group [Telescopes]: | Beginners |
| Total height (mm): | 1400 |
| Total length (mm): | 900 |
| Total width (mm): | 900 |
| Tripod height adjustment: | Yes |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
www.bresser.de
- Check the solar filter before every solar observation and ensure that it is not damaged. Hold it against a strong light source to detect any possible cracks and/or holes. Do not use the telescope for solar observation, even if the solar filter is only slightly damaged. In this case, contact the manufacturer for the appropriate replacement parts.
- Always use the included solar filter when observing the sun. Make sure it is correctly attached to the telescope according to the instructions. The use of the solar filter is only intended in connection with this telescope.
- Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
- Check the secure fit of the solar filter before each solar observation. An accidental detachment from the objective opening can lead to immediate and permanent eye damage and blindness.
- If the solar filter cannot be securely attached to the tube, improve the fit by placing several self-adhesive felt strips or similar between the solar filter and the objective opening. Never use the solar filter if it cannot be properly mounted on the telescope. In such a case, always contact our customer service first.
- Be extremely cautious when observing the sun. A brief look through the unprotected optics will immediately cause severe eye damage, potentially leading to complete blindness.
- Children should not look at the sun through the telescope, even with the filter properly installed. Never leave children unsupervised.
- Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
- Do not observe the sun after eye surgeries or other eye conditions without prior medical consultation.
- Wrinkles/creases in the film are normal and do not indicate a product defect.
- Do not expose the device to high temperatures.
- BATTERY WARNING AND SAFETY Safe handling and use of batteries and accumulators Read and follow these instructions before using the battery or accumulator. To the extent permitted by law, failure to comply with these warnings and instructions may result in any damage caused to your product not being covered by the warranty. In this document, the term "batteries" also includes accumulators. Follow these instructions to ensure optimal safety and performance: DO NOT use counterfeit batteries in products. Only use supplied batteries. Use the battery SOLELY for its intended purpose. Keep batteries out of the reach of children and pets. DO NOT use batteries that appear to be damaged, swollen, or modified. Do not use batteries that are leaking, emitting a smell, swollen, melted, or showing dents, rust, cracks, or scratches. The battery should NOT be disassembled, crushed, punctured, shredded, or otherwise tampered with. The battery should NOT be exposed to liquids. Liquid may penetrate the battery's circuits, causing corrosion and compromising its safety. A wet or damp battery should NOT be dried with a device or heat source (e.g., hairdryer or microwave). The device or battery should NOT be placed near a heat source or direct sunlight. High temperatures can cause the battery to swell, leak, or malfunction. Examples include placing the device near a radiator, stove, kitchen appliance, iron, fireplace, or inside a vehicle or next to a window in direct sunlight. The battery should NOT come into contact with metal objects. If metal objects such as jewelry come into prolonged contact with the battery terminals, the battery may become very hot or catch fire. The battery should NOT be stored together with hazardous or flammable materials. Store the battery in a cool, dry, and well-ventilated area. The battery should NOT be inserted incorrectly when charging. MAKE SURE the battery compartment is empty, dry, and free of dirt before inserting the battery. The battery should NOT be charged in direct sunlight or at extreme temperatures. The battery must be charged at room temperature, typically between 20 °C and 26 °C (68 °F-79 °F). Charging may be temporarily suspended if the battery temperature exceeds 60 °C (140 °F). If the battery is hot but the temperature is under 60 °C (140 °F), the battery will still charge, but more slowly than usual. Avoid dropping the battery or the product with the battery inside. If dropped onto a hard surface, the battery or product may be damaged. If you suspect the battery might be damaged, replace it. Never leave your mobile hotspot plugged into the power supply for more than 24 hours to charge. Let the battery drain and then recharge it. Keeping your mobile hotspot plugged into a charger without draining the battery can damage the battery/device or affect performance. If a battery shows a significantly shorter runtime than when purchased, it has reached the end of its reasonable lifespan. We recommend replacing it. For optimal results and performance, batteries should be replaced after 12 months or earlier depending on usage. Follow local regulations for the disposal of used batteries. Do not throw the battery into fire or water.