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Code Number: 8A35.20
Demo Title: Armillary Sphere
Condition: Excellent
Principle: Celestial sphere mechanics
Area of Study: Astronomy
Equipment:
Armillary Sphere with Accessories.
Procedure:
The Armillary sphere is designed to provide a more simplified explanation of what we observe of the day and night time sky from your position on Earth than what can be provided with the standard celestial sphere. Tilt of the unit can be adjusted as desired. The box of accessories should contain any constellation, planets, moon, etc. that you would talk about in a standard astronomy course.
Go to youtube.com and search "horizon globe pro instructions" for the following 45 short tutorial videos. You can also find these videos at:
https://www.horizonglobe.us/pro-support
- 01 - Initial setup
- 02 - Day and Night
- 03 - Directions
- 04 - Seasons
- 05 - Seasonal Changes
- 06 - The Sun's Seasonal Motion
- 11 - Moon
- 12 - Moon Motion
- 13 - Moon & Sun
- 14 - Moon Phases
- 15 - Paths of the Full Moon
- 16 - Paths of Other Phases
- 17 - Eclipses
- 21 - Latitude Adjustment
- 22 - North Pole
- 23 - Equator
- 24 - Tropic of Cancer
- 25 - Arctic Circle
- 31 - Orion
- 32 - Big Dipper
- 33 - Cygnus summer Triangle
- 34 - Cassiopeia
- 41 - Taurus
- 42 - Canis Major
- 43 - Gemini
- 44 - Canis Minor
- 45 - Auriga
- 51 - Bootes
- 53 - Virgo
- 54 - Leo
- 61 - Scorpius
- 62 - Sagittarius
- 71 - Great Sqare
- 72 - Pisces Austrinus
- 81 - Aquarius
- 82 - Pisces
- 83 - Aries
- 84 - Cancer
- 85 - Libra
- 86 - Capricorn
- 87 - Zodiac
- 91 - Little Dipper
- 92 - Cross Centaur
- 93 - Ship
- 94 - Eridanus
References:
- Jeff Regester, "An Inexpensive Armillary Sphere for Introductory Astronomy", TPT, Vol. 62, #8, Nov. 2024, p. 673.
- Arthit Laphirattanakul, Suwicha Wannawichian, Pornrat Wattanakasiwich, "PARST Educational Tool for Planet Positioning", TPT, Vol. 62, #4, April 2024, p. 272.
- Alejandro Gangul, Roberto Casazza, Carlos Paez, "From the Scale Model of the Sky to the Armillary Sphere", TPT, Vol. 52, #7, Oct. 2014, p. 403.
- Anne Lawrence-Mathers, "Medieval Weather Predictions", Physics Today, Vol. 74, #4, April 2021, p. 38.
- "The Armillary Sphere", Pike's Illustrated Catalogue of Scientific & Medical Instruments, 1984, p. 107.