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Orrery
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Orrery 2
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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.
Price: 275
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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UK AstroBuySell Sponsors
Serving the needs of telescope makers dew control, cables, wireless, accessories Click here to visit Telescope House The best astronomical accessory you'll ever buy! digital control of motorized focusers and rotators hard to find astronomy equipment Telescopes, Cameras, Filters, Adapters Observatory Dehumidifiers Ireland's fastest growing on-line astronomy shop
Click to visit us! try a telescope for a week or two dew, focuser, power controls Experts in Astronomy Workshops, Tutorials, Guides, Books on-line astronomy store Amateur Astrophotography Magazine North Star Astronomy second hand astro-modified Canon 450D cameras
203mm f12 apochromatic refractor EQ Mount Tuners & Much More! Bringing the night sky to you Astrofarm Knowledge Observatory France Click here to visit our website! Moonraker Telescopes - handmade in the UK SCTelescopes Carbon fiber products Making your Night's Viewing a Little Easier Precision Engineered Astronomical Products

 


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