How the Venus sign is calculated
The calculator runs the same calculation as the UmbraLux app, in three steps:
- 1
Turn the clock time into Universal Time
Your birth time is the clock time at your birthplace. With the time zone that applied there on that day (the IANA time zone database knows summer times and older rules), it becomes Universal Time (UTC). Without a time, the calculator takes your whole birthday at your birthplace.
- 2
Calculate the position of Venus
For that moment the ephemeris gives the apparent geocentric longitude of Venus on the ecliptic of date: where Venus stood in the zodiac, seen from the Earth.
- 3
Read the sign
The longitude divided by 30° gives the sign: 0° to 30° is Aries, 30° to 60° Taurus and so on (tropical zodiac). The remainder is the degree within the sign.
Example: 15 May 1990, 14:30, Berlin
On 15 May 1990 summer time applied in Berlin (UTC+2), so 14:30 was 12:30 Universal Time. At that moment Venus stood at 12°50′ Aries.
Venus had entered Aries on 4 May 1990 and left it on 30 May 1990: anyone born in that time has Venus in Aries.
What the Venus sign means in astrology
Astrology reads Venus as your way of loving, enjoying and relating: what you find beautiful and what attracts you.
In the library
Questions about the Venus sign
How long does Venus stay in a sign?
Mostly a little over three weeks (25 days at the median). In the years it turns retrograde it stays up to 126 days in the same sign (calculated for 1900 to 2100).
What does a retrograde Venus at birth mean?
Every 584 days, a little over 19 months, Venus seems to move backwards, seen from the Earth, for 40 to 44 days; it is retrograde at about 7 percent of births. Astrology reads it as inward love and one's own measure of closeness. The calculator shows whether Venus was retrograde at your birth.
How accurate is the calculator?
In 5,000 samples from 1900 to 2100 Venus lay two arcseconds on average and 20 at most from a calculation on the Swiss Ephemeris.
Is my data stored?
No. The calculation runs in your browser; your date, time and place are neither sent nor stored. Only your device remembers your last entry, and you can delete it below the form.
Sources
- Jean Meeus: Astronomical Algorithms, 2nd edition, Willmann-Bell 1998: Planetary positions, ecliptic coordinates
- Astronomy Engine (Don Cross) : The ephemeris the calculator uses
- IANA Time Zone Database : Time zones and summer times of the birthplace
- GeoNames : Coordinates and time zones of the places (CC BY 4.0)
- Wikipedia: Venus in astrology
More calculators
- AscendantThe sign rising in the east when you were born, to the arcminute.
- Sun signThe sign of the Sun at your birth, on the day it changes sign too.
- Moon signThe sign the Moon stood in when you were born.
- Birth moon phaseNew moon, full moon or in between: the phase, the light and the age of the Moon at your birth.