Fusor (astronomy)

A fusor, according to a proposal to the IAU by Gibor Basri, Professor of Astronomy at the University of California, Berkeley to help clarify the nomenclature of celestial bodies, is "an object that achieves core fusion during its lifetime". This definition included any form of nuclear fusion, so the lowest possible mass of a fusor was set at roughly 13 times that of Jupiter, at which point deuterium fusion becomes possible. This is significantly smaller than the point at which sustained hydrogen fusion becomes possible, around 60 times the mass of Jupiter. Objects are considered "stellar" when they are about 75 times the mass of Jupiter, when gravitational contraction, i.e. contraction of the object due to gravity, is halted by heat generated by the nuclear reaction in their interiors. Fusors would include active stars, dead stars, and brown dwarfs.

The introduction of the term "fusor" would allow for a simple definition:

Astronomy

Astronomy, a natural science, is the study of celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation), the physics, chemistry, and evolution of such objects and processes, and more generally all phenomena that originate outside the atmosphere of Earth. A related but distinct subject, physical cosmology, is concerned with studying the Universe as a whole.

Astronomy is one of the oldest sciences. The early civilizations in recorded history, such as the Babylonians, Greeks, Indians, Egyptians, Nubians, Iranians, Chinese, and Maya performed methodical observations of the night sky. However, the invention of the telescope was required before astronomy was able to develop into a modern science. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy and the making of calendars, but professional astronomy is nowadays often considered to be synonymous with astrophysics.

Astronomy (Dragonland album)

Astronomy is the fourth studio album by Swedish power metal band Dragonland, released in Europe on November 13, 2006 and in North America on November 28, 2006. While their third album Starfall focused heavily on keyboards and had a more upbeat lyrical tone, according to guitarist Olof Mörck, Astronomy is "gloomier, more stygian and packed with crunching guitars; both furiously fast and bone-grindingly heavy."

Track listing

All songs written and composed by Olof Mörck, except "Intuition", by Tony Harnell, Ronni Le Tekrø. 

Lyrical references

In a February 2007 interview with Metal Reviews, guitarist Olof Mörck went into details about some of musical and lyrical influences in Astronomy:

Astronomy (song)

"Astronomy" is a rock song by Blue Öyster Cult that has appeared on several of the band's albums. It was first published on their 1974 album Secret Treaties. Their second live album, Some Enchanted Evening, included a version with an extended guitar solo and a third version was included on the Imaginos album. It was also re-recorded for the band's Cult Classic collection in connection with the TV miniseries of Stephen King's The Stand. Most recently the song was included on the A Long Day's Night album.

Lyrics

The song's lyrics are selected verses from a poem by Sandy Pearlman, the band's producer and mastermind behind their image, called "The Soft Doctrines of Immaginos". In the poem, which was later partially released under the BÖC moniker in the album Imaginos, aliens known as Les Invisibles guide an altered human named Imaginos, also called Desdinova, through history, playing key roles that eventually lead to the outbreak of World War I.

In "Astronomy", the character of Imaginos comes to realize his heritage and his role as the altered human. References are made to celestial objects throughout the song: "The light that never warms" being the moon, "The Queenly flux" the constellation Cassiopeia, "My dog, fixed and consequent" being Sirius, the dog star. The "Four Winds Bar" may be a reference to the Tropic of Cancer. All in all, it has Imaginos explaining his position as part of Les Invisibles.