Pascal Hilkens Astro Home Page
Friday, September 22, 2017
Fast movement of Venus
Observing Venus each morning it's clear the planet "moves" fast across the sky. The star Regulus is now a couple of degreed north of Venus.
Start of Astronomical Autumn
Thursday, September 21, 2017
Wednesday, September 20, 2017
Tuesday, September 19, 2017
Venus and Regulus
Too much clouds and my horizon is blocked for the Moon, Mars and Mercury. Venus and Regulus made it!
Monday, September 18, 2017
Sunday, September 17, 2017
Zimmer Tower in Lier
From top right (1 o'clock) to the left the smaller clocks show :
- the Metonic cycle, this is a 19 year cycle after which the different phases of the moon fall on the same date in the year
- the Equation of time, showing the difference in minutes between mean solar time and apparent solar time
- the Zodiac
- the Solar Cycle, this is a 28 year cycle after which the dates show up in the same order, the clock shows the current year of the cycle
- the dial shows the day of the week
- Globe with the rotation of the Earth
- the dial shows the month
- Calender date
- the Seasons and this dial shows also the length of each season in days and hours
- the Tides by location in Lier
- the age of the moon since new moon
- the real time phase of the moon
On a other side of the Tower you can see a Sundial with the inscription "Ultima (hora) Latet", meaning "The last hour is hidden".
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