The Night Sky Planisphere & Dimmable Red Light Torch PACKAGE Southern Hemisphere
The Night Sky Planisphere for the Southern Hemisphere by David Chandler - Astronomy star map
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Generally regarded as the BEST planisphere!
This sturdy, plastic laminate covered planisphere is a quick and convenient way of seeing which constellations are above the horizon at any specified time and day of the year.
Sky and Telescope magazine adopted The David Chandler 'Night Sky' planisphere in 1976 and has promoted it ever since. It is widely recognised by the amateur astronomy and educational communities as the best planisphere on the market.
Eliminates over 90% of the distortion inherent in conventional one-sided planispheres.
"Chandler's planisphere (rotating star-finder wheel) is the finest available" Sky News
- Southern Hemisphere: Suitable for Australia, New Zealand, South Africa, Argentina, Chile and other nations in the Southern Hemisphere
- White background with dark stars for easy nighttime readability: a must for a planisphere.
- Heavy duty plastic laminate covers the 2 sides of the planisphere so it does not get damp at night.
- Designed in collaboration with editors of Sky and Telescope magazine
- Selection of deep sky objects for binocular or telescope viewing included
- Large in size for easy readability! Measures approx 21 x 25 cm
Night Reader Pro dimmable 630nm Red light LED Astronomy torch for telescope - Preserve night vision
The Night Reader Pro™ is a true Astronomer’s Flashlight built with a 630nm red LED to help you read a planisphere or atlas in the dark without depleting your night vision. There is no white light option to accidentally activate so you can use the Night Reader Pro™ without worry of loosing your night vision or upsetting your neighbours at a star party. Although the light is bright enough to be used when setting up equipment, the brightness can be brought up gradually to any level desired for reading at close quarters with minimal afterimaging. The LED is shielded so the light will shine where you want it, but not directly in your eyes.
Night Reader Pro™ is made tough in the USA and carries a lifetime warranty. The standard CR2032 battery is easy to replace and will give you 36 hours or more of operation - each battery costs about AUD$0.25 to AUD$0.50 on eBay (look for packs of 10 or 20 batteries), so is affordable to replace. The housing is rated IPX-4 for moisture resistance and has gold-plated contacts for reliable service. A quick-clip keychain attachment is provided to keep the light handy with fast and easy access. This light will be there when you need it and you won’t be fumbling with a split-ring attachment. With the Night Reader Pro™ clipped to a zipper on your jacket or to the strap on your binoculars you will always have a top-notch light source at the ready.
It can take up to 45 minutes for the human eye to completely adapt to darkness as a protein called Rhodopsin builds up in the rod cells. Once your night vision is adapted you might be surprised at how many more objects are visible, and how much better you can see details in faint objects. Unfortunately all it takes is a about a second of the bright white light from a flashlight or a cell phone display to deplete your night vision and have you waiting around to adapt again! The longer wavelength red light produced by our Night Reader is detected by the cone cells in your eye and does not deplete Rhodopsin in your rod cells. This allows you to read a chart or atlas and immediately return to viewing the sky.