Interior of the Octagon Room at the Royal Observatory, Greenwich, London Collection_Coronation conceived as navigational gifts for

conceived as navigational gifts for the safety of all

singly ionized sulphur (SII) is mapped to red and doubly ionized oxygen (OIII) is mapped to the blue channel

A great accessory for enthusiasts of astronomy photography

Astronomers at the Royal Observatory Greenwich

They responded to a perceived market for popular science products and were intended for informal learning within the home

Interior of the Octagon Room at the Royal Observatory, Greenwich, London Collection_Coronation conceived as navigational gifts forThree figures using astronomical equipment in the Great Star Room or the Octagon Room, as it is known today, at the Royal Observatory. To the left an observer is using a quadrant to carry out astronomical observations. While a seated figure, on the right, studies the sky through a telescope. Portraits of Charles II, whose support Sir Jonas Moore had crucially secured for the founding of an observatory at Greenwich, and James, Duke of York (later James