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American astronomical telescope glasses professional star star space night vision high-altitude high-definition students children Star

American astronomical telescope glasses professional star star space night vision high-altitude high-definition students children Star
Product code: 22503100030
Unit price 71.96-162.79$
Sold quantity 25988
Available stock 8587

Product parameters:

  • Whether the mall with the paragraph: Yes
  • Time to market: 2016 spring
  • Brand: CELESTRON
  • made in China
  • Price range: 500-1000 yuan
  • Astronomical telescope optical system: refraction type
  • Main mirror diameter: 50-100mm
  • Highest magnification: up to 2600 times
  • Coke ratio: 11.67
  • Weight: 3.18KG
  • Astronomical telescope bracket type: the latitude and longitude ceremony
  • Main mirror length: 711.2mm
  • Color classification: black 1: high-definition wide-angle observation hot version of the white 1: high-definition wide-angle observation hot version of black 2: connect a variety of mobile phone photographed version of the black 3: SLR camera version of the brand black 4: 2600 times mobile phone star cloud version of black 5: All-star photo video version of the black 6: HD continuous zoom zoom version of the black 7: 2600 times the security concept of the sun version of the black 8: 2600 times the high-power observation version of the black 9: high-definition mobile phone shooting nebula black 10: 2600 times mobile video Black 11: ultra-full equipment, high-definition full set of white 2: to connect a variety of mobile phone photographed version of the white 4: 2600 times the mobile phone starry version of the white 6: HD continuous zoom zoom white 7: 2600 times the security concept of the sun version of white 8: Times ultra-high-power observation version of white 9: high-definition mobile phone shooting nebula white 10: 2600 times the phone video version of the white 11: super full equipment HD set
  • Item No .: 21041


Standard:

60 primary mirror, finder, C4mm eyepiece, C20mm eyepiece, U-type horizon theodolite, 3x magnification, as the zenith mirror, Aluminum alloy tripod, cloth one, Chinese description (observation guide) English manual, warranty card, software CD two, color box

main feature


· Quick and easy to install without tools
Fine-tuning control, smooth tracking
· Just as the optical system - astronomical landscape dual use
· The optical lens group is fully coated with an anti-reflective film, making the image brighter and clearer
· 3 times the Barrow lens, can make each eyepiece magnification 3 times
· Accessory plate for quick access to accessories
The 'the sky?' Level 1 astronomical software, with 10,000 celestial databases and many photos






Detailed

· The Starlight powerseeker series of telescopes is an excellent way to open the universe, aspiring to become an astronomer. The powerseeker series is designed for beginners, with a combination of quality, performance, price and appearance.

Amateur astronomy is a good family hobby that can continue to love for years. Starlight's powerseeker series of telescopes is an ideal choice for all families, it can be for children and interested adults to provide a long time fun The

· Powerseeker series telescope has a quick and simple installation - even for the novice. Assembly time does not require any tools!

Their stable and stable equatorial instrument can perfectly track the celestial bodies, while the detachable horizon theodolite can be used both for astronomical observations and for ground observation.

All Starlight powerseeker series telescopes include a set of eyepieces, a 3x Baro lens, which increases the magnification to hundreds of times the naked eye.

The powerseeker series of telescope optical lens group with full surface coating, the image is more bright and clear.

· Positive optical system astronomical landscape dual use.

Use the 'the sky' level 1 software on your laptop or desktop computer to quickly locate and identify thousands of celestial bodies.















parameter


Optical system: Refractive
Caliber: 60mm
Focal length: 700mm
Coke ratio: 11.67
Eyepiece 1: 20mm
Magnification 1: 35 x
Eyepiece 2: 4mm
Magnification 2: 175 x
Barrow lens: 3 x
Look for the stars: 5 x24
Zenith: 1.25 inches just like a dome
Base: Horizontal theodolite
Tripod: aluminum
Accessory tray: No tools required for mounting / eyepiece support
Cd rom: the sky level 1 astronomy software
Total weight: 3.18kg
Limit magnitude: 11.4
Resolution (Rayleigh limit): 2.32 arcseconds
Resolution (Duchenne limit): 1.93 arcseconds
Photographic resolution: 171 / mm
Set light power: 73x
Field of view: 1.2 °
Linear field of view (1000 yards): 18.59m
Optical coating: the whole surface coating
Main tube length: 711.2mm
























How to Choose a Telescope

Read step by step

A) To understand the basic knowledge of astronomical telescopes

Astronomical telescopes are refracted, reflective and folding reflection type 3:

1. Refractive type is more convenient to use, the larger field of vision, bright stars, but there are color, which reduces the resolution of high-quality refractor lens is two double-decolored achromatic objective lens or three achromatic objective lens.However, Achromatic or aphrodisiac is not a good way to eliminate chromatic aberration.

2. The advantage of the mirror is that there is no color difference, but the coma and the astigmatism of the mirror are large, which makes the edge of the field of view worse. The commonly used mirrors are Newton and Cassegrain. The former optical system is simple, Cheap, spherical reflector in the back, eyepiece in the front side; the latter optical system of the main and vice as non-spherical, primary and eyepiece are in the back, the image quality is better, the price is more expensive.

3. Reflective mirror taking into account the advantages of refractors and mirrors: vision, like a good quality, tube short, easy to carry.With the same focal length and the same caliber compared to the telescope, the price is less than one-third. The mirrors are Schmidt-Cassegrain and Mark Sutov-Cassegrain, both of which are known as horse-card mirrors, and two-piece and three-piece, Bo crown BOSMA1800150 and BOSMA2400200 are three-piece, because the quality is better than the two-piece, much domestic and foreign astronomy enthusiasts welcome.