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|For Sale |
|Status: Active Advert Category: Book-Magazine-Atlas Advert # 133544|
|High quality brass Orrery (solar system model) + 52 magazines in which all the parts came.|
High quality, antique style, power driven, mechanical orrery (solar system model). The planets in the model are complete and include the celestial bodies of CERES, ERIS as well as PLUTO. + 52 magazines in which all the parts came.
The model features repeating sets of large and small gears. The gear ratios are calculated so they match the movements of the planets as they move through the sky. This orrery has a variable speed setting and even a safety clutch. Whatever speed you choose to run your model, each set of precision gears steps down the speed of the next planet's rotation, accordingly.
Every component of this orrery has been precisely engineered and made of brass or silver-plated steel. Finely polished to a gleaming finish and lacquered to keep them looking like new, the pieces are of exceptional quality and fit together perfectly.
It also has a traditional 12 month calendar and zodiac signs incorporated into the base. The zodiac symbols are on a brass ring on the base.
The model's motor is powered by a 6V DC power adapter. It has a speed control knob on the base.
Some of the features of this orrery:
(1)The Earth revolution takes about 42 seconds. You can calculate revolution periods of other plants, since the speed ratios of the planets are set according to that of real planets.
(2)The sun and the earth rotate around their own axis just as that in real life.
(3)Planetary bodies: Sun, Mercury, Venus, Earth (with moon), Mars (with moon), Ceres, Jupiter (with moons), Saturn (with moons), Uranus (with moon), Neptune (with moon), Pluto, Eris. Terrestrial Planets, Asteroid Belt, Gas Giant Planet and Ice Dwarfs.
All sensible offers considered. Buyer collect due to weight and delicacy.
Posted on: 2018-01-12 22:50:28
Last Updated on: 2018-01-13 13:36:39
New or Repeat ad: New
Contact: Bob Craggs   (user details & view my other adverts)
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Location: Loughborough , England (view map of area)
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