What is the system of angular units used by astronomers of Venus?

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Astronomers on Venus utilize a unique system of angular units, including the "venusial parsec" (vpc), to measure distances, such as the distance to Sirius being 19.6 vpc. The discussion highlights the need to describe the angular unit system and calculate the venusial diurnal parallax of the Sun. Participants also touch on the historical context of angular measurement, questioning why Earth uses a 360-degree system, which traces back to Sumerian influences. The conversation reflects on the mathematical properties of base systems, particularly the significance of the number 60. Overall, the thread explores the distinct astronomical practices of Venusian astronomers.
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Hello everyone!
I just was reading Your questions and was interested in IAO problems.
There are only problems without solutions of 2011 year in the net, but i found IAO 2005 problems. So i can not understand how to solve some of them.

Like humans, astronomers of venus use the same method for definitions of parallaxes and of parsec but measure them in different (their own) units. For example, the distance to Sirius equals to 19.6 vpc (venusial parsec).
-Describe the most evident system of angular units used by astronomers of venus.
-Calculate the venusial diurnal parallax of the Sun.
Citizens of venus have two hands as humans and 7 fingers at each hand.
Thank you for comments!
 
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welcome to pf!

hello kapella! welcome to pf! :smile:
kapella said:
-Describe the most evident system of angular units used by astronomers of venus.
-Calculate the venusial diurnal parallax of the Sun.
Citizens of venus have two hands as humans and 7 fingers at each hand.

why on Earth (literally! :biggrin:) do we divide the circle into 360 degrees?

what on Earth is the definition of parsec and parallax? :wink:
 
Blame it on the Sumerians, base 60 was their idea. We still use it for time keeping and geometry. It is cleanly divisible by every integer from 1 to 10, except for 7 - which may explain ancient superstitions about the number 7.
 
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