Jack Horner is an American paleontologist, born on June 15, 1946, known for his discovery and naming of Maiasaura, providing the first clear evidence that some dinosaurs cared for their young. In addition to his paleontological work, he served as a technical advisor for all Jurassic Park films, making a cameo in Jurassic World, and partially inspired the character of Dr. Alan Grant. Although he studied at the University of Montana, he did not complete his degree due to undiagnosed dyslexia but was awarded an honorary Doctorate in Science.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 355 days away.
Place of Birth
Time Zone - America/Denver (7:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Jack
supplanter, he who holds by the heel
Read Full Jack Name AnalysisJune 15, 1946 Facts
Generation Group
Jack Horner belongs to the Baby Boomers group.
Place of Birth: Shelby
Educated At: University of Montana
Occupation: herpetologist | paleontologist | geologist
Employers: Montana State University | Museum of the Rockies | University of Montana
Awards Received: Romer-Simpson Medal | MacArthur Fellows Program
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 June 15, 1946
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on June 15, 2025 | Secondary Progressions for June 15, 2025 |
---|---|---|---|
Sun | 24 Gemini 3 | 24 Gemini 55 | 9 Virgo 41 |
Moon | 5 Capricorn 12 | 17 Aquarius 16 | 0 Sagittarius 52 |
Mercury | 11 Cancer 2 | 13 Cancer 1 | 28 Leo 19 |
Venus | 27 Cancer 8 | 9 Taurus 46 | 25 Libra 49 |
Mars | 27 Leo 26 | 29 Leo 8 | 15 Libra 29 |
Jupiter | 17 Libra 18 | 1 Cancer 21 | 25 Libra 31 |
Saturn | 24 Cancer 20 | 1 Aries 12 | 4 Leo 12 |
Uranus | 17 Gemini 58 | 28 Taurus 57 | 21 Gemini 32 |
Neptune | 5 Libra 50 | 2 Aries 4 | 7 Libra 18 |
Pluto | 10 Leo 3 | 3 Aquarius 25 | 12 Leo 15 |
Rahu | 20 Gemini 41 | 22 Pisces 42 | 16 Gemini 30 |
Ketu | 20 Sagittarius 41 | 22 Virgo 42 | 16 Sagittarius 30 |
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.Jack Horner's 2025 Transits to Natal Planets
- Mars conjunction Venus
Exact: 11 January, 2025 - Mars square Jupiter
Exact: 10 February, 2025 - Saturn square Ketu
Exact: 02 March, 2025 - Mars conjunction Saturn
Exact: 01 April, 2025 - Mars conjunction Venus
Exact: 11 April, 2025 - Jupiter trine Jupiter
Exact: 11 April, 2025 - Jupiter conjunction Rahu
Exact: 01 May, 2025 - Jupiter opposition Ketu
Exact: 01 May, 2025 - Jupiter opposition Moon
Exact: 30 June, 2025 - Jupiter conjunction Mercury
Exact: 30 July, 2025 - Mars aspects Sun
Exact: 28 October, 2025 - Jupiter conjunction Saturn
Exact: 17 November, 2025 - Mars opposition Sun
Exact: 07 December, 2025 - Mars aspects Saturn
Exact: 07 December, 2025