Auszug aus einem Briefe des Herrn Brinkley, Directors der Dubliner Sternwarte, an den Herausgeber

✍ Scribed by John Brinkley

• Publisher: John Wiley and Sons
• Year: 1827
• Tongue: English
• Weight: 306 KB
• Volume: 5
• Category: Article
• ISSN: 0004-6337
• DOI: 10.1002/asna.18270050903

✦ Synopsis

Anszug atis eiiiem Briefe des Herra BrinLBy , Directors der Dubliuer Steruwarte , a11 deu Herausgeler. Observatory Dublin 1826. August 2. sels n e w and iiileresling computations on the quantity of precession of the ecpinoxes. -I liope soon to send two papers of mine on the quantity of the precession OF the equinoxes anti on the proper motion of certain stars. niotion. I have invesligate~l illis quanlily by help of 13 different slars near the equinoctial coliiie un soppositiot1 that Rigel and 5c Orionis and Cg'gni are fixed stars. ~h o accordance OF the results by these 13 stars i s very think appear that the luni-solar precession is riot less than 50",38 and that tlie general precession is about 50",22 as N r . Bessel has made it. The quantity 50",38 is deduced from the supposiiion that tlie pole-star has no proper motion. 1 certainly was mistaken in this, arid my second paper goes _ _ t o sJloly ;hat during the last 70-years the change of decli-I I send observations of the moon-stars for Jizly.

J o h n B r i n k l e y .

I am engaged in investigating by observations the proper motions of soiae( of the double stars and snd M. Piazzis proper motioiis more exact than I could have supposed.