Carl Rümkers Hamburger Sternverzeichnis 18450, enthaltend 17724 Sternörter, abgeleitet aus den Beobachtungen am Meridiankreis der Hamburger Sternwarte in den Jahren 1836 bis 1856

Abstract

DR. RICHARD SCHORR has rendered a great service to exact astronomy in making and publishing this re-reduction of the great Hamburg catalogue of Carl Rumker, containing 17,724 stars, mostly faint, observed with the Repsold Transit Circle (of 4 inches aperture) between 1836 and 1856. It is of interest to learn from the short biographical sketch of Rumker that he held a commission in the British Mediterranean fleet from 1812 to 1817, holding the post of instructor in navigation. He then went to Paramatta Observatory, N.S.W., as director; while there he made useful observations of Encke's Comet at its first predicted return in 1822. He returned to Hamburg as director of the Observatory in 1833, remaining there till his health failed in 1857, The Transit Circle was quite a good one, and the early date of the stellar observations renders them of value for the determination of proper motion.

Carl Rümkers Hamburger Sternverzeichnis 1845.0, enthaltend 17724 Sternörter, abgeleitet aus den Beobachtungen am Meridiankreis der Hamburger Sternwarte in den Jahren 1836 bis 1856.

Herausgegeben von Dr. Richard Schorr. Pp. xiv + 488. (Bergedorf: Verlag der Sternwarte, 1922.) n.p.