Pamphlets. Astronomy, Volume 91858 |
Common terms and phrases
astronomical Astronomische Balham Beobachtungen der Sonnenflecken Briefliche Mitteilung bright catalogue Catania Charkow Christiania cm Durchmesser cm Oeffnung Colong diameter diffic distance double stars Earth exposure faint Fernrohr Fleckengruppen force ring given Greenwich heliographischen heliometer hydrogen images Instrument Jahre Kremsmünster Libration light lines Lord Rosse magnetischen magnitude March Markree mean measured measures meridian Mitteilung von Herrn motions mouvements nebula night object observations Observatory observed observer Ogyalla parallax perhaps photograph plate Pleione position present probably projiziertes Sonnenbild published Refraktor Relativzahlen Rotationen Rotationsperiode Rudolf Wolf scale Schaufling Selenographical Sept Society solar Sonnenflecken Sonnenfleckenbeobachtungen von Herrn South spectra spectroscope spectrum square stars Sternwarte Sun's taken telescope temperature tion units Uranometria Variation Vergrösserung VIII Zürich