Portrait of Friedrich Bessel, German astronomer

Portrait of Friedrich Bessel, German astronomer

H402/0136 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 53.8MB

Downloadable file size: 2.8MB

Price image Pricing

Please login to use the price calculator



Caption: Portrait of Friedrich Bessel (1784-1846), German astronomer. Bessel started his working life as an accountant in Bremen. He made preparations to travel by studying navigation and astronomy. By the age of 26, he was director of the new Konigsberg Observatory. He studied the perturbations of planetary and stellar motions, inventing the Bessel functions to aid his analysis. He was the first to establish the distance to a star by the method of stellar parallax (1838), using 61 Cygni as his first object. He predicted that a small companion star formed a binary system with Sirius, and suggested the existence of the planet Neptune.

Release details: Model release not available. Property release not required.

Keywords: astronomer, bessel, bessel functions, friedrich wilhelm, inventor, neptune, parallax, pioneer, portraits, proposer, star distance, surname b

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.