The Observatory, Volume 56Editors of the Observatory, 1933 Some vols. for 1886- include a special issue: Annual companion to the Observatory. |
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Page 73
... magnitude of the brightest stars seen in them is about 6 , with a reasonably small scatter round this value . By making the assumption that -6.0 is the absolute magnitude of the brightest stars in all extra - galactic nebulæ , Hubble ...
... magnitude of the brightest stars seen in them is about 6 , with a reasonably small scatter round this value . By making the assumption that -6.0 is the absolute magnitude of the brightest stars in all extra - galactic nebulæ , Hubble ...
Page 242
... magnitude ( total light ) was 12 . Comet Giacobini - Zinner was of magnitude 14 , so that it is unlikely that many observations will be obtained at this apparition . Comet Pons - Winnecke was a diffused object , 3 ' in diameter ; it has ...
... magnitude ( total light ) was 12 . Comet Giacobini - Zinner was of magnitude 14 , so that it is unlikely that many observations will be obtained at this apparition . Comet Pons - Winnecke was a diffused object , 3 ' in diameter ; it has ...
Page 333
... magnitude on Aug. 10 being estimated as probably fainter than 7m.5 . The brightening was discovered independently in America by Mr. L. C. Peltier of Delphos , Ohio , on August 15 , when the magnitude was estimated as 6m.4 in close ...
... magnitude on Aug. 10 being estimated as probably fainter than 7m.5 . The brightening was discovered independently in America by Mr. L. C. Peltier of Delphos , Ohio , on August 15 , when the magnitude was estimated as 6m.4 in close ...
Contents
A MONTHLY REVIEW OF ASTRONOMY | 1 |
Meeting of the Royal Astronomical Society on 1933 January 13 37 | 13 |
MAP | 24 |
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appears Astronomer Royal atmosphere atom bands bright BRITISH ASTRONOMICAL ASSOCIATION calcium Cambridge Cape catalogue central intensities centre chromosphere clock comet comparison stars computed corresponding craters Crommelin curve Decl density determined discussion distance double star Earth eclipse effect electrons emission ephemeris equation equatorial Eros Fraunhofer lines frequency George Darwin give given Greaves Greenwich hydrogen instrument interest ionisation Jupiter km./sec latitude layer light limb magnetic magnitude mean measured meridian meteorite meteors method motion nebulæ observations Observatory obtained orbit oscillator paper period photographs planet planetary plates position possible present President probable error problem Prof Professor radial velocities radiation Right Ascension rotational speed Royal Astronomical Sir Arthur Eddington Sir Frank Dyson slide Slipher Solar Activity spectra spectrograph spectrum spot Steavenson stellar stream Sun's sunspot surface tables telescope temperature theory University variable variable stars variation wave-length zero