Gunnar Nils Toivo Svaetichin was a Swedish-Finnish-Venezuelan physiologist known for his significant contributions to the understanding of fish retinas and vision. In 1956, he demonstrated the sensitivity of electroretinograms to blue, green, and red wavelengths, supporting the Young-Helmholtz trichromatic theory. He also introduced the S-potential concept, providing experimental evidence for the opponency in visual processing. Born in Finland in 1915, he later moved to Sweden and worked as a researcher in Venezuela until his passing in 1981.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 221 days away.
Death Anniversary
Next death anniversary is 74 days away.
Death Date
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Gunnar
war, battle, warrior
Read Full Gunnar Name AnalysisJanuary 13, 1915 Facts
Generation Group
Gunnar Svaetichin belongs to the GI Generation group.
Place of Birth: Karis
Occupation: physiologist | physician
Employers: Venezuela
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.Ephemeris for January 13, 1915
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on January 13, 2026 | Secondary Progressions for January 13, 2026 |
|---|---|---|---|
| Sun | 22 Capricorn 27 | 23 Capricorn 31 | 13 Taurus 8 |
| Moon | 27 Sagittarius 10 | 26 Scorpio 40 | 24 Capricorn 0 |
| Mercury | 27 Capricorn 31 | 18 Capricorn 33 | 16 Taurus 39 |
| Venus | 8 Sagittarius 26 | 25 Capricorn 12 | 9 Aries 8 |
| Mars | 17 Capricorn 11 | 22 Capricorn 29 | 13 Aries 46 |
| Jupiter | 24 Aquarius 52 | 19 Cancer 40 | 20 Pisces 11 |
| Saturn | 27 Gemini 48 | 26 Pisces 56 | 29 Gemini 54 |
| Uranus | 10 Aquarius 31 | 27 Taurus 40 | 15 Aquarius 30 |
| Neptune | 29 Cancer 15 | 29 Pisces 42 | 27 Cancer 50 |
| Pluto | 0 Cancer 46 | 3 Aquarius 6 | 0 Cancer 37 |
| Rahu | 28 Aquarius 24 | 11 Pisces 29 | 22 Aquarius 31 |
| Ketu | 28 Leo 24 | 11 Virgo 29 | 22 Leo 31 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
