Astron Belt (アストロンベルト) is an early laserdisc video game and third-person space combat rail shooter, released in 1983 by Sega in Japan and licensed to Bally Midway for release in the United States. Developed in 1982, it is commonly cited as the first laserdisc game.
The game's unveiling at the 1982 AMOA show in Chicago marked the beginning of laserdisc fever in the videogame industry, and its release in Japan the following year marked the first commercial release of a laserdisc game. However, its release in the United States was delayed due to several hardware and software bugs, by which time Dragon's Lair had beaten it to public release there.Astron Belt was, however, the first laserdisc game released in Europe.
Astron Belt came in both upright and cockpit cabinets. The cockpit version featured illuminated buttons on the control panel, a larger 25" monitor (the upright used a standard 19"), and a vibrating seat.
The player controls a lone spacecraft on a mission to singlehandedly take down the entire enemy armada. Enemy fighters and ships shoot at the player, and there are mines and other objects that must be shot or avoided.
Astron may refer to:
Astron was a Soviet spacecraft launched on 23 March 1983 at 12:45:06 UTC, using Proton launcher, which was designed to fulfill an astrophysics mission. It was based on the Venera spacecraft design and was operational for six years as the largest ultraviolet space telescope during its lifetime. The project was headed by Alexander Boyarchuk.
The spacecraft was designed and constructed by the Crimean Astrophysical Observatory and NPO Lavochkin. A group of scientists from these institutions was awarded the USSR State Prize for their work on Astron.
Astron's payload consisted of an 80 cm ultraviolet telescope which was designed jointly by the USSR and France, and an X-ray spectroscope on board. It could take UV spectra 150-350nm.
Placed into an orbit with an apogee of 185,000 kilometres (115,000 mi) it could make observations outside the Earth's umbra and radiation belt. Among the most important observations by Astron were those of the SN 1987A supernova on March 4–12, 1987 and of Halley's Comet in December, 1985, that allowed a group of Soviet scientists to develop a model of the coma surrounding Halley's Comet.
The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch, i.e., one based on a quartz crystal oscillator. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering.
The Astron was unveiled in Tokyo on December 25, 1969, after ten years of research and development at Suwa Seikosha (currently named Seiko Epson), a manufacturing company of Seiko Group. Within one week 100 gold watches had been sold, at a retail price of 450,000 yen (US$1,250) each (at the time, equivalent to the price of a medium-sized car). Essential elements included a Y-type quartz oscillator of 8192 cps, a hybrid integrated circuit, and a phase locked ultra-small stepping motor to turn its hands. The Astron was accurate to ±0.2 seconds per day, ±5 seconds per month, or one minute per year.
In March 2010, at the BaselWorld watch fair and trade show in Switzerland, Seiko previewed a limited edition new version and related designs of the original Astron watch, commemorating the fortieth anniversary in December 2009 of the debut of the Astron watch.