The Observatory, Volum 26Editors of the Observatory, 1903 |
Altres edicions - Mostra-ho tot
Frases i termes més freqüents
A. C. D. CROMMELIN Al-Sufi appeared April Argelander Astronomer Royal Auriga bright British Astronomical Association canals Catalogue centre comet correction Crommelin d h d h d h determination double stars eclipse ephemeris error Geminorum give given Greenwich Harvard Hinks Houzeau inches instrument interesting July June Jupiter latitude Lick Observatory light lines lunar magnetic storms magnitude March Maunder Max Wolf mean measures Meeting meridian Meteorological meteors method Moon nebula Newcomb Nova number of stars observations occultations orbit paper period Persei photographs planet plates position present President probably Prof proper motion Ptolemy remarks Royal Astronomical Society Royal Observatory satellites seems seen Sept spectra spectrum spot stellar suggested sun-spots tables taken telescope temperature theory variable stars variation velocity W. T. LYNN Yerkes Observatory Zodiacal Light
Passatges populars
Pàgina 355 - Milton's muse had so recently adorned, that the comet "from its horrid hair shakes pestilence and war ". m Its road in the heavens was observed with exquisite skill by Flamstead and Cassini: and the mathematical science of Bernoulli, Newton, and Halley, investigated the laws of its revolutions. At the eighth period, in the year two thousand two hundred and fifty-five, their calculations may perhaps be verified by the astronomers of some future capital in the Siberian or American wilderness.
Pàgina 268 - I thought these prints might serve in some way as a substitute. The glass positive is in Mr. Wesley's office, and can be seen by any of the Fellows interested. Mr. Newall has kindly brought some slides of similar results which he will be happy to exhibit to the Meeting after the formal business. I would ask you to return thanks to the donors of these very valuable presents. The President. We have a large number of papers of great interest, and it remains to be seen how far it will be possible to...
Pàgina 75 - Change, and there my Lord and most of the company to a club supper ; Sir P. Neale. Sir B. Murray, Dr. Clerke, Dr. Whistler, Dr. Goddard, and others of the most eminent worth. Above all Mr. Boyle was at the meeting, and above him, Mr. Hooke. who is the most, and promises the least, of any man in the world that ever I saw.
Pàgina 314 - XXIII. will then represent a just Section of it. Now in this Space let us imagine all the Stars scattered promiscuously, but at such an adjusted Distance from one another, as to fill up the whole Medium with a kind of regular Irregularity of Objects. And next let us consider what the Consequence would be to an Eye situated near the Center Point, or any where about the middle Plane, as at the point A.
Pàgina 129 - Report on the Meteorology of India" in relation to the health of the troops there stationed. In this he included the results of all the meteorological observations made in India which he could procure. These, however, did not appear to be very satisfactory, for he concludes his report as follows : — " I cannot help expressing the hope that future meteorological observations...
Pàgina 295 - The ordinary crude mind has only two compartments, one for truth and one for error ; indeed the contents of the two compartments are sadly mixed in most cases : the ideal scientific mind, however, has an infinite number. Each theory or law is in its proper compartment indicating the probability of its truth. As a new fact arrives the scientist changes it from one compartment to another so as, if possible, to always keep it in its proper relation to truth and error. Thus the fluid nature of electricity...
Pàgina 73 - PRILLIEUX has been elected a member of the Paris Academy of Sciences, in succession to the late M.
Pàgina 57 - Denning now the absolute magnitude of a star as the magnitude it would have if at a distance corresponding to a parallax of o"'i (a definition which would make the Sun of magnitude 5-5), he is able to form a table of the number of stars between given limits of distance which are of given absolute magnitudes. By taking means from this table, he is able to form what he denominates a luminosity-curve, ie a table of the number of stars of different absolute magnitudes per unit of volume. He illustrates...
Pàgina 104 - ... for single observations have been obtained by interpolation from these computations, and about as many more remain to be obtained. 12-inch Meridian Photometer. — With this instrument 66,932 settings have been made by the Director on 118 nights. In all, 265,604 settings have been made in four years. The principal work has been the extension of the photometric scale from the tenth to the thirteenth magnitude. Sequences of stars have been selected and measured for all the regions contained in...
Pàgina 75 - But it is a most acceptable thing to hear their discourse, and see their experiments, which were this day on fire, and how it goes out in a place where the ayre is not free, and sooner out where the ayre is exhausted, which they showed by an engine on purpose.