Donald Edward Osterbrock was a prominent American astronomer known for his work in the field of spectroscopy and studies of active galactic nuclei. He was born on July 13, 1924, in Cincinnati and earned his Ph.D. in 1952 under Subramanyan Chandrasekhar at the University of Chicago. Osterbrock held positions at Princeton University, the University of Wisconsin, and the California Institute of Technology. From 1973 to 1981, he directed the Lick Observatory at the University of California, Santa Cruz, where he focused on ionized gas physics in nebulae and authored an influential textbook.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 358 days away.
Death Anniversary
Next death anniversary is 189 days away.
Death Date
Place of Birth
Time Zone - America/New_York (4:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Donald
world ruler, ruler of men
Read Full Donald Name AnalysisJuly 13, 1924 Facts
Generation Group
Donald Edward Osterbrock belongs to the GI Generation group.
Place of Birth: Cincinnati
Place of Death: Santa Cruz
Educated At: University of Chicago
Occupation: university teacher | astrophysicist | astronomer
Employers: University of California, Santa Cruz | California Institute of Technology
Awards Received: Fellow of the American Academy of Arts and Sciences | Henry Norris Russell Lectureship | Guggenheim Fellowship | Gold Medal of the Royal Astronomical Society | Bruce Medal
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 July 13, 1924
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on July 13, 2025 | Secondary Progressions for July 13, 2025 |
---|---|---|---|
Sun | 20 Cancer 56 | 21 Cancer 31 | 28 Libra 59 |
Moon | 11 Sagittarius 25 | 25 Aquarius 42 | 18 Leo 7 |
Mercury | 0 Leo 2 | 14 Leo 45 | 26 Libra 40 |
Venus | 2 Cancer 50 | 10 Gemini 2 | 17 Virgo 10 |
Mars | 4 Pisces 33 | 15 Virgo 12 | 0 Pisces 57 |
Jupiter | 10 Sagittarius 42 | 7 Cancer 41 | 17 Sagittarius 46 |
Saturn | 26 Libra 24 | 1 Aries 49 | 4 Scorpio 56 |
Uranus | 21 Pisces 24 | 0 Gemini 17 | 18 Pisces 6 |
Neptune | 19 Leo 1 | 2 Aries 9 | 22 Leo 16 |
Pluto | 12 Cancer 8 | 2 Aquarius 51 | 13 Cancer 32 |
Rahu | 24 Leo 42 | 21 Pisces 14 | 19 Leo 21 |
Ketu | 24 Aquarius 42 | 21 Virgo 14 | 19 Aquarius 21 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
