Magnitude Collection

Diagram showing the spectral class and luminosity of stars. The diagram was named The Hertzsprung-Russell Diagram, or the H-R diagram for short

Epicycles of Mercury and Venus, 1823 C017 / 8061
Epicycles of Mercury and Venus, 19th-century diagram. This geocentric (Earth-centred) model shows the orbits of Mercury and Venus as a series of epicycles (loops)

Earthquake damage in Armenia 1989
Earthquake damage. A group of US politicians visiting a damaged bread-baking factory in Armenia after the 1988 Spitak earthquake

A simplified Herzprung-Russell Diagram showing how stars are classified

Northern constellations, 18th century
Northern constellations. 18th-century map of constellations and stars of the northern celestial hemisphere. The constellations are represented by artworks of their mythical namesakes

Celestial planisphere, 1700 C016 / 4385
Celestial planisphere. 18th-century astronomy diagrams centred around a planisphere of stars and the southern constellations. The Sun and Mercury are at upper left

Celestial planispheres, 1772 C016 / 4386
Celestial planispheres. 18th-century astronomy diagrams centred around planispheres of stars and constellations. The northern celestial hemisphere is at left

Coming under canvas, George the magician and a full supporting cast of wonder workers and funmakers presenting a spectacle rich in scenic and electrical effects surpassing in splendor

Light-intensity camera beneath its protective dome at the Poker Flat Research Range (PFRR), Alaska, USA. The telescope and attached instrumentation are used to measure the relative brightness of

Eclipsing binary star system. Artwork of W Ursae Majoris, an eclipsing binary system located around 200 light years away from Earth

Stars. Computer artwork showing a combination of stars of different colours, sizes and brightness. The colour of a star will depend on several of its properties, including its chemical composition

Variable star. Artwork of a variable Mira-type binary star system, seen from the surface of a nearby planet. The system, which consists of a large red giant star (left)

Illusory contours forming circles. This illusion demonstrates the false perception of areas of increased brightness. Lines are apparently joined to bright circles. In fact no such circles exist

Ehrenstein illusion - illusory contours forming circles. Created in 1954 by the psychologist Walter Ehrenstein, this illusion demonstrates the false perception of areas of increased brightness

Photoelastic stress patterns of French curves, viewed using polarised light. The plastic the French curves are made from is displaying coloured interference fringe patterns

Photoelastic stress of French curves
Photoelastic stress patterns of French curves, viewed using polarised light. The plastic the French curves are made from is displaying coloured interference fringe patterns

Upsilon Andromedae planetary system
In 1999 the scientists Marcy, Butler and Fischer announced the detection of the first planetary system around a normal star beyond our Sun

Three states of matter: solid liquid gas
Three states of matter, 3d computer illustration. From bottom to top the three states of matter are; solid, liquid and gas. Particles are in constant motion

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"Exploring the Magnitude of the Universe: From Celestial Planispheres to Eclipsing Binary Star Systems" Step into a world where magnitude reigns supreme, unveiling the wonders of our vast universe. Delve into the depths of knowledge with epicycles of Mercury and Venus, as depicted in the mesmerizing 1823 C017 / 8061 artwork. Witness the captivating beauty and diversity of stars through a diagram showcasing their spectral class and luminosity. This visual feast allows us to comprehend their sheer brilliance and understand how they shape our celestial tapestry. Yet, not all is serene in this cosmic symphony. The devastating earthquake damage in Armenia during 1989 reminds us that even nature's they are bring destruction. It serves as a humbling reminder of Earth's power amidst its delicate balance within the cosmos. Symbols hold immense significance when deciphering hidden meanings within our existence. A page from "Symbols and Metaphors" by Cynicus (colour litho) unravels secrets encoded within ancient wisdom, guiding us towards understanding life's enigmatic magnitudes. The simplified Herzprung-Russell Diagram acts as an astronomical compass, navigating us through stellar classification systems. Its elegant simplicity reveals how stars are categorized based on temperature, brightness, and size – unlocking profound insights about these celestial giants. Journey back to centuries past with Northern constellations from the 18th century; let them guide you across time-honored stories woven among twinkling lights above. Marvel at celestial planispheres dating back to 1700 C016 / 4385 or explore those from1772 C016 / 4386 – gateways connecting humanity to its cosmic origins. Amidst this exploration lies George the magician coming under canvas alongside his full supporti - reminding us that even human endeavors can possess great magnitude when fueled by passion and creativity. Capture light's essence with a light-intensity camera, revealing the unseen dimensions of our world.