An Account Of The Revd John Flamsteed The First Astronomer Royal Compiled From His Own Manuscripts And Other Authentic Documents Never Before Pub PDF Download

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1835 edition. Excerpt: ... letters; at present want time to add more, than that I am, Sir, ever yours, John Flamsteed, M.R. Copied from the original letter in the possession of Mrs. Giles. No. 123.) Letter from Mr. Flamsteed to Sir Isaac Newton. The Observatory, Sep. 14, 1706. Sir, I have consulted Tycho's Mcchanica, where he says that at that time, when he wrote it, he was 50 years of age complete, and that his volumes contained the accurate observations of 21 years; which shews they commenced in the year 1575. Tycho was born in 1546: Decembris 13, 22" 47'But the observations of the Historia Cwlestis begin no sooner than the year 1582; so that, by this account, there are 7 years' observations wanting in the very beginning. Besides all the observations of the year 1593, which were not to be found in Germany, in the same place he says he had observed seven comets; whereas, in the Historia Ccelestis, there are no observations that I can find either of that of the year 1582 or 1590, of which he gives an account in his Epistles. The first part of his Progymnasmata gives his tables for calculating the 0's and J 's places, with his observations of the new star of 1572, and deductions from them. The second part is concerning the comet of 1577; so that we have the observations of but 3 of his 7 comets: and of those, only such as he thought fit to employ. This makes me think that his observations of the comets is made a book by themselves, and that probably it is still to be found in Denmark, with the 7 or 8 years' observations that are missing. Whatever his Royal Highness determines concerning the rest of Tycho's works, it may be much for his honor to bestow these on the world, with the errata of the German edition, if he can procure the originals, as I doubt not but...