The Observatory, Volume 56Editors of the Observatory, 1933 Some vols. for 1886- include a special issue: Annual companion to the Observatory. |
From inside the book
Results 1-3 of 44
Page 74
... absorption of light between us and the nebula . Inter- galactic space appears to be transparent , and any absorption must be looked for in our own galaxy . Shapley's researches indicate that there is no absorption of rays oblique to the ...
... absorption of light between us and the nebula . Inter- galactic space appears to be transparent , and any absorption must be looked for in our own galaxy . Shapley's researches indicate that there is no absorption of rays oblique to the ...
Page 292
... absorption is determined by the absorption coefficient K ( v ) , which is a function of the absorbed frequency v and is defined as follows : -In passing a distance through the gas layer the intensity of a ray of frequency v Απν is ...
... absorption is determined by the absorption coefficient K ( v ) , which is a function of the absorbed frequency v and is defined as follows : -In passing a distance through the gas layer the intensity of a ray of frequency v Απν is ...
Page 299
... absorption transition i to k and fix to the emission k to i . ( The difference between these two values , of course , only occurs if one considers degenerate states . ) Let us , for instance , consider the " absorption probability " of ...
... absorption transition i to k and fix to the emission k to i . ( The difference between these two values , of course , only occurs if one considers degenerate states . ) Let us , for instance , consider the " absorption probability " of ...
Contents
Meeting of the Royal Astronomical Society on 1932 December 9 | 9 |
Geophysical Discussion on 1932 November 25 | 22 |
Vol LVI FEBRUARY 1933 Price | 28 |
15 other sections not shown
Other editions - View all
Common terms and phrases
absorption appears astrographic Astronomer Royal atmosphere atomic bright BRITISH ASTRONOMICAL ASSOCIATION Cambridge Cape central intensities centre clocks colour comet comparison stars computed correction craters Crommelin curve Decl density determined discussion distance double stars Earth eclipse effect ephemeris equation equatorial Eros galaxies George Darwin give given Greaves Greenwich instrument interest investigation ionisation Jupiter km./sec latitude layer light lines longitude magnetic magnitude maximum mean measured meteorite meteors method Moon motion nebulæ observations Observatory obtained orbit paper period photographs planet planetary plates position possible present President pressure probable error Prof Professor proper motions radial velocities radiation Right Ascension rotational speed Royal Astronomical Royal Observatory Sir Arthur Eddington Sir Frank Dyson slide Slipher Society Solar Activity solar parallax South spectra spectrograph spectrum spots stellar Sun's sunspot surface telescope temperature theory universe variation wave-length zero