Thomas Preston-Werner is an American billionaire, software developer, and entrepreneur, born on May 27, 1979. He is known for founding GitHub, a web-based hosting service for Git repositories, in 2008 alongside Chris Wanstrath and P. J. Hyett. An active contributor to the free and open-source software community, he emphasized the importance of code documentation for developers. He previously founded Gravatar in 2004, which was sold to Automattic in 2007, and later co-founded Chatterbug, a language learning software. Preston-Werner is recognized for his significant contributions to the tech community.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 287 days away.
Place of Birth
Time Zone - America/Chicago (5:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Tom
twin
Read Full Tom Name AnalysisMay 27, 1979 Facts
Generation Group
Tom Preston-Werner belongs to the Generation X group.
Place of Birth: Dubuque
Educated At: Harvey Mudd College | Dubuque Senior High School
Occupation: programmer | business executive | software engineer | software developer | computer scientist | businessperson
Employers: Gravatar | GitHub Inc. | Powerset
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 May 27, 1979
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on May 27, 2025 | Secondary Progressions for May 27, 2025 |
|---|---|---|---|
| Sun | 5 Gemini 49 | 6 Gemini 39 | 19 Cancer 45 |
| Moon | 26 Gemini 18 | 14 Gemini 53 | 29 Aquarius 38 |
| Mercury | 3 Gemini 1 | 3 Gemini 37 | 13 Leo 22 |
| Venus | 11 Taurus 44 | 20 Aries 52 | 7 Cancer 45 |
| Mars | 8 Taurus 36 | 18 Leo 48 | 11 Gemini 43 |
| Jupiter | 4 Leo 26 | 27 Gemini 3 | 13 Leo 6 |
| Saturn | 7 Virgo 45 | 0 Aries 5 | 10 Virgo 44 |
| Uranus | 18 Scorpio 20 | 27 Taurus 53 | 17 Scorpio 4 |
| Neptune | 19 Sagittarius 30 | 1 Aries 47 | 18 Sagittarius 18 |
| Pluto | 16 Libra 40 | 3 Aquarius 41 | 16 Libra 30 |
| Rahu | 13 Virgo 27 | 23 Pisces 43 | 11 Virgo 1 |
| Ketu | 13 Pisces 27 | 23 Virgo 43 | 11 Pisces 1 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
Astrology Transits Analysis for Year 2025
Note: Multiple transits occurring in close proximity often signify a major event in a person's life.Tom Preston-Werner's 2025 Transits to Natal Planets
- Saturn conjunction Ketu
Exact: 01 January, 2025 - Saturn opposition Rahu
Exact: 01 January, 2025 - Jupiter conjunction Moon
Exact: 21 May, 2025 - Mars conjunction Saturn
Exact: 30 June, 2025 - Mars conjunction Rahu
Exact: 10 July, 2025 - Mars opposition Ketu
Exact: 10 July, 2025 - Jupiter trine Ketu
Exact: 09 August, 2025 - Mars aspects Mars
Exact: 19 August, 2025 - Mars opposition Venus
Exact: 08 October, 2025 - Mars opposition Mercury
Exact: 07 November, 2025 - Rahu conjunction Ketu
Exact: 27 November, 2025 - Ketu conjunction Rahu
Exact: 27 November, 2025
