Indoor Home Decoration Romantic Sky Star Master Projector Lamps 3D Night light

كتاب علمي عن مغامرات البروفسور آستروكات، وهو شخصية خرافية لتشجيع الطفل على الإقبال على قراءة المواضيع العلمية الضرورية، وبأسلوب جاذب. يتضمّن الكتاب شروح عن المركبات الفضائية، وعن المكوكات التي تحمل الإنسان (رائد الفضاء) إلى الفضاء وتنزله على سطح القمر. الكتاب يشرح كيفية عمل الصواريخ الفضائية. كما يعطي لمحة عن تاريخ غزو الإنسان للفضاء.

After years of R&D we have developed a new solar film that has the optical quality of glass with the advantages of impregnated polymer. Will never develop pinholes or scratches that can let in light and ruin a filter. Other advantages: lightweight and does not require re-balancing tube assembly, will not break, consistent yellow-orange solar image, even density with any aperture, flat surface compared to other thin film filters that have wrinkles and creases. Will not tear or puncture. Stronger than any other solar film on the market. Also available in sheets. Guaranteed 15 years.

Download Printable Solar Filter Instructions

Star Adventurer Mini and Star Adventurer Tripod.

Also compatible with AZ-GT series and AZ5

View the magnificence of the universe with Vixen's ultra wide eyepiece

The new SSW series of eyepieces are designed with an ultra-wide 83 degree apparent field of view. The SSW eyepieces allow you to see an area that is three times as wide as eyepieces with a moderate 45°or 50°field of view. With this wide field of view, you see many more stars across your eyepiece. Enjoy spectacular views of stars through your telescope. The SSW eyepiece deliver clear and high contrast images with no hint of ghost and flare throughout the field of view due to its advanced multi-coating technology. You will be impressed with the extremely sharp images even at the very edge of the field of view.

• The ultimate portable astrophotography telescope with Bahtinov mask built into the cap for quick and easy focusing.

• 43 mm image circle is perfect for full-frame cameras in this 51 mm aperture petzval refractor. 
• The f/4.9 focal ratio allows for fast light-gathering power on this wide-field telescope.
• Includes the Iconic Soft Cat Carry Case.

William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25" RotoLock - Red - M-G50PB-WG

• Get in perfect focus with this high-quality William Optics Guide Scope.
• 1.25-inch RotoLock design for smooth and accurate focusing.
• This is the Red version.

• Focal Length: 200 mm (7.87")

• Focal Ratio: f/4

• Diameter: 50 mm

• Total Guide Scope Length: 265 mm

• Included: 1.25" RotoLock

• Focusing: Front Focuser System w. Focus Lock Ring

• Weight: 515g (1.14 lb)

William Optics Guide Star 61 APO

(Soft Carry Case included)

• Provides a full-frame image circle
• Rotatable 2" manual drawtube for coarse focusing
• Rotating dewshield for fine focusing
• Comes with a free high-quality soft case

• A gold plate to match your other gear!
• Dual-sided dovetail plate with V-style and Arca Swiss dovetails.
• Length:  245 mm (9.64-inches).
• Width top: 38 mm (1.496-inches.)
• Width bottom: 41.7 mm (1.641-inches. 

William Optics Losmandy Style Type D Dovetail Bar (Swan Series)

Made with a high-precision CNC and anodizing process, this dovetail from William optics are sleek, durable, and guaranteed to keep your equipment safe and sturdy.

• Weighs 3.1 lbs
• 40 cm in length

William Optics Losmandy Style Type D Dovetail Bar (Swan Series)

Made with a high-precision CNC and anodizing process, this dovetail from William optics are sleek, durable, and guaranteed to keep your equipment safe and sturdy.

• Weighs 3.1 lbs
• 40 cm in length

The 48 mm T-mount for Sony E-mount in Black adapter, by William Optics:

This high-precision T-mount adapter has 48 mm threads with outer hard black color anodizing and is made from high-quality aluminum material. It has been machined by CNC for a perfect fitting!

عندما تنظر إلى النجوم، هل تحلم بعوالم جديدة أبعد من عالمنا؟ هل تود أن تستكشف الكواكب البعيدة، أو تقود  صاروخاً أو تجرب بعضاً من فيزياء الشوكولاتة؟

• This thorough kit of 2" telescope accessories presents an affordable introduction to lower-power, wide-field stargazing - ideal for anyone interested in exploring deep-sky objects
• Kit includes three 2" Orion DeepView telescope eyepieces - 42mm, 35mm, and 28mm focal lengths
• The included 2", 2x Barlow lens allows you to double the magnification of each included telescope eyepiece for versatile performance
• Included 2" Orion SkyGlow Broadband Filter helps combat light pollution so you can get the most out of your wide-field observations
• Everything fits nicely in the included pluck-foam accessory case