**Jan Woltjer** (3 March 1891 – date of death unknown) was a distinguished Dutch astronomer celebrated for his impactful contributions to the field of astronomy. Born in Amsterdam, Netherlands, he was the youngest son of the classical scholar Jan Woltjer. His unique Human Design as a Manifesting Generator played a pivotal role in shaping his innovative approach to research and education. With an Emotional Inner Authority, Woltjer navigated his career with a responsive creativity that allowed him to excel in academic environments.

On 13 December 1916, Woltjer married Hillegonda de Vries in Groningen, and together they nurtured a family that continued his legacy in astronomy. Their son, Lodewijk Woltjer, born on 26 April 1930, served as the director general of the European Southern Observatory from 1975 to 1987, furthering the family’s influence in the scientific community.

As a professor at Leiden University, Woltjer inspired numerous students, including the renowned astronomer Gerard P. Kuiper. His Human Design profile as a 4/6 reflects a blend of personal experience and the role of a wise mentor, embodying the insights gained throughout his life journey. His Incarnation Cross, the Right Angle Cross of The Four Ways (33/19 | 24/44), indicates a life path focused on exploration and communication, which resonated deeply in his work and interactions with peers and students alike.

Woltjer’s dynamic energy is further illustrated by his channels, 20-34 and 37-40, highlighting his ability to connect with others and foster collaboration. His contributions to astronomy were recognized with the naming of the crater Woltjer on the Moon and the asteroid 1795 Woltjer, serving as a testament to his lasting legacy in the field.

Through his innovative spirit and emotional responsiveness, Jan Woltjer left an indelible mark on the world of astronomy, inspiring future generations of scientists. His life and work remain a shining example of how Human Design can influence and enhance one’s contributions to society.