<p>I want to make a calculator for Chinese New Year calendar. There is a rule that a leap year happens if the eclipse happens before each zongqi (equivalent to the middle of zodiac sign, ie. 15º, 45º, 75º, 115º... to the sun).</p>

<p>Where is a good reference to know that the exact time of the earth entering each zodiac sign every year?</p>

CC BY-SA 4.0
2019-12-18T20:28:35.400Z
@barrycarter I think [houses](https://en.wikipedia.org/wiki/House_(astrology)) are more closely related to hour angle.
Mike G
CC BY-SA 4.0
2019-12-20T01:01:02.913Z
@barrycarter That's good insight. i don't do python. but i found something available in c#
Hoy Cheung
CC BY-SA 4.0
2019-12-20T19:04:42.640Z
@barrycarter Signs may influence houses in some astrological traditions, but I think they are aligned in the sky only when ♈︎ is on the eastern horizon (18h sidereal time).
Mike G
CC BY-SA 4.0
2019-12-20T22:32:07.260Z
@barrycarter Yes, and the time of day.
Mike G
CC BY-SA 4.0
2019-12-21T19:46:58.670Z
@TrioCheung An answer outlining your C# solution would be of interest. In Python skyfield.almanac_east_asia.[solar_terms](https://rhodesmill.org/skyfield/almanac.html#solar-terms) might do the job.
Mike G
<observational-astronomy><zodiac>
How can I get the exact time of each zodiac every year?
Hoy Cheung
# How can I get the exact time of each zodiac every year?

(Asked by: username_0 on 2019-12-18)

I want to make a calculator for Chinese New Year calendar. There is a rule that a leap year happens if the eclipse happens before each zongqi (equivalent to the middle of zodiac sign, ie. 15º, 45º, 75º, 115º... to the sun).

Where is a good reference to know that the exact time of the earth entering each zodiac sign every year?

**Tags:** observational-astronomy, zodiac

> **Comments:**
> **username_1**: @barrycarter I think [houses](https://en.wikipedia.org/wiki/House_(astrology)) are more closely related to hour angle.  
> **username_0**: @barrycarter That's good insight. i don't do python. but i found something available in c#  
> **username_1**: @barrycarter Signs may influence houses in some astrological traditions, but I think they are aligned in the sky only when ♈︎ is on the eastern horizon (18h sidereal time).  
> **username_1**: @barrycarter Yes, and the time of day.  
> **username_1**: @TrioCheung An answer outlining your C# solution would be of interest. In Python skyfield.almanac_east_asia.[solar_terms](https://rhodesmill.org/skyfield/almanac.html#solar-terms) might do the job.  

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## 0 answers

