It was discovered on September 29, 1973 by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at the Palomar observatory in USA. The asteroid is named after the Norwegian author Knut Hamsun. Its size is approximately 4.9km.

https://snl.no/Hamsun_-_asteroide

Knut Hamsun (1859–1952) was a Norwegian writer. He is considered one of the most influential literary stylists of the 20th century and is considered by many to be the originator of the modern novel. He was awarded the Nobel Prize in Literature in 1920.

https://en.wikipedia.org/wiki/Knut_Hamsun

One nearby star reveal itselve by its proper motion over a period of time from approximately 1955 to the present day. Maybe you can spot one more.

Sun distance (au): 2,22 Mag. 17,1

Time: 02:56UT 2025-03-31 Exp. 20 x 90sec.
Tel. 0.254m f/5.9 ST-10XME CCD @ -25°C 0.94"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.