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If the universe is full of extraterrestrials... where is everyone? In this thoroughly revised and expanded edition of Stephen Webb's well-known work, the author details the most convincing solutions to the famous Fermi paradox: if the mathematics point to the existence of extraterrestrial civilizations, why haven't we found any signs of them?

Sky Watcher extension column for EQ6, EQ6-R and AZEQ6

SKWSW0142

74.34 VAT excl.

Sky Watcher Extension Column for EQ6

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Astronomy Books

Editorial Akal

Book If the universe is full of extraterrestrials... where is everyone?

LIBISBN9788446046318

33.61 VAT excl.

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Home

Search engine base Kepler for SCT

KE447

18.18 VAT excl.

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Filters for astronomical telescopes

Low profile filter cell TS for 1.25" filters

TKSFIFA061

14.20 VAT excl.

Low profile filter cell TS for 1.25" filters.

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Reflector Tubes

SkyWatcher Black Diamond 200 800 DUAL SPEED SkyWatcher Reflector Tube

SKWSW0305

519.79 VAT excl.

SkyWatcher WIDEPHOTOreflector telescope. This reflector tube takes traditional parabolic mirror systems typical of conventional reflectors to the next level. With faster focal ratio of F/4 and 2" DUAL SPEED focuser.

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Other accessories for astronomical telescopes

Adapter Geoptik for 2" eyepieces , SC

GEO30A182

42.11 VAT excl.

Visual Back Geoptik for 2" eyepieces, Schmidt-Cassegrain.

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Equipment Transport Cases and Boxes

Plastic transport suitcase Geoptik 800x370xH140 mm The Geoptik line of cases was created in Italy for the transport of delicate and weather-sensitive instruments. For example, high quality spotting scopes and many short focal length APO telescopes (max. diameter 120 mm) and many of their accessories.

Plastic transport suitcase Geoptik 800x370xH140 mm

GEO30B082

159.46 VAT excl.

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Melquiades y Merlin

Adult transparent world map umbrella

MYM12908

12.40 VAT excl.

Original transparent umbrella with a detailed world map, adults size

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Eyepiece holders and adapters

25mm extension tube Kepler for 1.25" barrels

KE065

14.01 VAT excl.

25mm extension tube Kepler for 1.25" barrel. The 25mm extension tube Kepler is made of metal and screws into any 1.25" filter thread. Can be used with webcams and 0.5X focal reducers

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Accessories for solar telescopes

Solar protection reflector Geoptik

GEO30A098

85.08 VAT excl.

With this screen hood Geoptik you will be able to observe and photograph the Sun with your laptop without visibility problems.

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ED Apochromatic Refractor Tubes

Askar

Quintuplet astrograph telescope Askar FRA500 90mm f/5.6

ASKfra500

1,982.60 VAT excl.

Sharpstar's quintuplet apochromatic ASKAR APO 90 mm f/5.6 is optimized for astrophotography with high-resolution cameras

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CCD camera adapters

Astrophysicist David Galadí, from the Instituto de Astrofísica de Andalucía (IAA) with extensive teaching experience, offers an excellent tool for beginning amateurs, high school teachers, and advanced amateurs. In this second edition of his best seller Astronomía General: Teoría y Práctica, Galadí joins his knowledge with that of Jordi Gutiérrez to...

7 mm M48 extension ring Kepler

KE393

17.31 VAT excl.

7 mm M48 extension ring Kepler. Ring Kepler, with T-thread (M48x0.75), allowing a 7 mm extension

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Weather stations

BMS

Microscopy dissection kit BMS 16645

BMS16645

31.40 VAT excl.

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Astronomy Books

Editorial Akal

From the Earth to the Universe. General Astronomy: Theoretical and Practical

ISBN9788446051459

47.60 VAT excl.

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Searchers for astronomical telescopes

5 cm elevator for Telrad finder TS

TKSTELBAS5

30.61 31.01 -0.40 VAT excl.

Telrad Teleskop Service Telescope Elevator of 5 cm, allows a more comfortable observation position.

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Other accessories for CCD cameras

ADAPTER TS PARFOCAL T2 ADAPTER FOR 9X50 FINDERSCOPE

TKSTSADAP-PAR-FOC-HU

19.79 20.08 -0.29 VAT excl.

ADAPTER TS T2 PARFOCAL ADAPTER FOR 9X50 FINDERSCOPE. T2 short adapter for 9x50 finderscope: converts the finder into a super compact guide telescope for astrophotography.

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Eyepiece holders and adapters

35mm extension tube Kepler GSO 2''. This small 35mm extension tube Kepler is especially useful to help you achieve focus on instruments equipped with a 50.8mm eyepiece holder. It is equipped with a knurled screw ring clamp, which provides uniform locking around the circumference of the accessories and does not mark the barrels

35 mm extension tube Kepler GSO 2'' 2''

KE043

26.40 VAT excl.

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Power supplies for mounts

Celestron

Powertank Celestron Lithium Pro CEL18768

CEL18768

231.37 247.11 -15.74 VAT excl.

Powertank Celestron Lithium Pro CEL18768. The PowerTank Lithium Pro is ideal for the true power user. This higher capacity battery is the latest version of the best-selling Powertank Lithium battery. PowerTank Lithium Pro offers double the capacity of the original Lithium battery, making it ideal for more demanding applications

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German equatorial saddles

Wave 100i Sky-Watcher Sky-Watcher harmonic mount with carbon tripod

SKWSW0488

1,570.21 1,752.07 -181.86 VAT excl.

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Solar telescopes

LUNT Solar Systems

H-alpha LUNT LS40THa/B500 H-alpha solar telescope

LUNT0551145

1,155.33 VAT excl.

Solar telescope of 40 mm diameter to get started in an easy and affordable way in the observation of bumps, filaments, flares, surface granulation and a long etcetera of spectacular solar phenomena.

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Solar Filters

AstroZap

Solar Filter AstroZap glass filter for tubes 295-302mm

ZAPAZ-1531

264.42 VAT excl.

Astrozap glass solar filter for tubes with diameters between 295 and 302mm.

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Accessories for astronomical telescopes

Sky-Watcher Counterweight Clamp Screw for EQ5/EQ6/AZEQ6

SWSAV0034

8.26 VAT excl.

Sky-Watcher Counterweight Clamp Screw for EQ5/EQ6/AZEQ6

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Other accessories for astronomical telescopes