Ulysse Nardin

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Astrolabium Galileo Galilei
MR/Vers. 1.1
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General Information

• First model of the Trilogy, presented in 1985
• First watch that sensitizes us for the things
  happening in the sky
• Dial is available for every Latitude
• Perpetual Calendar has never to be adjusted
• Automatic Movement UN-97 with 18K Rotor
• Quick Adjustment forwards and backwards over a
  single crown
• CHF 84000.-

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The Elements
The Elements of the Astrolabium

• Hour and Minute-Hands

• Sun-Hand

• Moon-Hand

• Dragon-Hand

• Ecliptic

• Planisphere (Dial)

• Equator

• Bezel

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The Functions

• Total of 21 Functions
• Legal Time, Month, and Weekday
• Solar Time
• Sunrise Sunset
• Dusk Dawn
• Moonrise Moonset
• Moon-Phase
• Solar and Lunar Eclipse
• Zodiac
• Position of Sun, Moon, and Stars
• Directions (Compass)
• Tropics Seasons
• Temporal Hours
• Electric Astrolabium

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Time, Month, and Weekday

• Legal Time (or Normal Time)

• Month and Date

• Weekday

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Solar Time

• Solar Time (or Local Time)

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Sunrise Sunset

• Sunrise

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Sunrise Sunset

• Sunrise

• Sunset
• Example early Sunset in December (around 1655
  Solar-Time)

• Late Sunset in June (around 1910 Solar-Time)

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Dawn Dusk

• Dawn Dusk
• Long Dusk in December (about 2h)

• Short Dusk in June (about 1h)

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Moonrise Moonset

• Moonset in December around 1700

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Moon-Phase

• Waning Moon

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Moon-Phase

• Waning Moon

• New Moon

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Moon-Phase

• Waning Moon

• New Moon

• Waxing Moon

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Moon-Phase

• Waning Moon

• New Moon

• Waxing Moon

• Full Moon

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Solar Lunar Eclipse

• Lunar EclipseFull Moon with Dragon Hand aligned

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Solar Lunar Eclipse

• Lunar EclipseFull Moon with Dragon Hand aligned

• Solar EclipseNew Moon with Dragon Hand aligned

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Zodiac
Zodiac? Aries Mar 21 Apr 19? Taurus Apr 20
May 20 ? Gemini May 21 Jun
21? Cancer Jun 22 Jul 22? Leo Jul 23
Aug 22? Virgo Aug 23 Sep 22? Libra Sep 23
Oct 23? Scorpio Oct 24 Nov
21? Sagittarius Nov 22 Dec
21? Capricorns Dec 22 Jan 19? Aquarius Jan
20 Feb 18? Pisces Feb 19 Mar 20
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Positions
Positions of Sun, Moon, and Stars are defined by
Altitude (above Horizon) and Azimuth
Altitude (above Horizon)
Azimuth
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Positions

• Position of Sun Moon

Intersection of Sun/Moon-Hand with Ecliptic
Example 30 Altitude, 60 Azimuth

• Position of StarsDirectly given on the dial

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Directions (Compass)

• During Day
• Direct Sun-Hand at Sun -gtdirections are given
  by the Bezel

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Directions (Compass)

• At Night
• Direct Moon-Hand at the Moon -gtdirections are
  given by the Bezel

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Tropics Seasons
The Planisphere shows

• Equator Equinox Day and Night is equally long

• Tropic of Cancer highest position of Sun in
  Summer (Summer Solstice)

• Tropic of Capricorn lowest position of Sun in
  Winter (Winter Solstice)

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Tropics Seasons
Examples

• 12 Noon at Summer Solstice

• 6pm at Summer Solstice

• 12 Noon at Winter Solstice

• 6pm at Winter Solstice

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Temporal Hours
Temporal Hours were used in the Medieval Age when
the Natural Night was divided into 12 equal
parts Examples

• Short Temporal Hours (lt 60) in Summer

• Long Temporal Hours (gt 90) in Winter

• Temporal Hours 60 during Equinoxes