Gift Ideas under $100

An in-depth guide for aspiring astronomers and Moon observers from the Royal Observatory Greenwich.

Whether you're a beginner, nature photographer, or serious astronomer, this is the definitive handbook to capturing the heavens.

• Four great Moon filters in one kit—everything you’ll ever need for optimal views of the lunar surface
• Three neutral density (ND) filters with different levels of light transmission (13%, 25%, and 50%) allow you to choose the perfect filter for your viewing conditions
• Moon & Sky Glow filter provides high contrast views of the lunar surface and enhances observation of deep sky objects from light polluted skies
• Aluminum filter cells provide a rigid, durable housing for the filter glass and are threaded on top and bottom for stacking
• Kit includes a plastic carrying case with Moon map and legend for identifying the most popular lunar features

SEMI-PRECIOUS STONE PLANETS 9-PIECE COLLECTION IN WOODEN BOX

Simple text and stunning photographs and illustrations

Come on a mission of discovery, as we depart the International Space Station and travel towards the centre of the Earth... Along the way learn all about key natural and human-made wonders found at every level from space to core!

• An indispensable reference guide for observing the "Red Planet"
• Identifies Martian features using classical albedo and modern nomenclature
• Lists all opposition and conjunction events from 2014 to 2020
• Recommends best filters for visual observation and astrophotography of Mars
• Plastic-laminated for durability, the Mars Map measures 25.25" x 11" when fully unfolded, and folds up to 8.5" x 11" for easy portability

• An ideal reference for observing ringed Saturn and its brightest moons
• Identifies atmospheric features of Saturn using standard nomenclature
• Includes lists of all Saturn oppositions, observable conjunctions from 2014 to 2020
• Lists best filters for visual observation and astrophotography of Saturn
• Plastic-laminated for durability, the Saturn Map measures 25.25" x 11" when fully unfolded, and folds up to 8.5" x 11" for easy portability