Clue | Length | Answer |
---|---|---|
18th-century German astronomer Friedrich .... | 6 letters | bessel |
Lunar crater named for an astronomer | 6 letters | bessel |
German astronomer who was the first to measure the distance to a star | 6 letters | bessel |
German astronomer | 6 letters | bessel |
German astronomer who was | 6 letters | bessel |