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Observations of Halley's Comet [PDF]
Nature, 1910 I SAW Halley's comet through field-glasses on Sunday morning, April 24, at 3.40. It was then about 10° above the horizon, 20° to the left of Venus, and slightly under it. It was very distinct from 4.0 to 4.20. At its best, 4.15, I could just distinguish the head by the naked eye, but only for a minute.
H. C. Wilson, R. E. Wilson
semanticscholar +12 more sources
Publications of the Astronomical Society of the Pacific, 1910 I DO not know if the enclosed is of any general interest or not; it is an attempt to photograph Halley's comet (as seen here) without any special apparatus. The tail was about 90° long on May 17, and probably 115° on May 18, taking the calculated position of the nucleus, which had not risen when dawn came.
Jindřich Svoboda
+14 more sources
Corrected ephemeris of Halley's comet [PDF]
Astronomische Nachrichten, 1909 n ...
A. C. D. Crommclin
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Visibility of Halley's Comet [PDF]
Nature, 1909 THE discovery of Halley's comet at a time so far preceding the date of perihelion passage adds another proof of the great capacity of the photographic method. The interesting point to many observers is as to when the comet will become visible to them as a telescopic object.
W. F. Denning
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Symplectic map description of Halley's comet dynamics [PDF]
, 2014 The main features of 1P/Halley chaotic dynamics can be described by a two dimensional symplectic map. Using Mel'nikov integral we semi-analytically determine such a map for 1P/Halley taking into account gravitational interactions from the Sun and the eight planets.
G. Rollin, P. Haag, J. Lages
arxiv +3 more sources
Shocklets in the Comet Halley Plasma [PDF]
Physics of Plasmas, 2020 Dust acoustic (DA) waves evolving into shocklets are investigated in the Comet Halley plasma system relaxing to Maxwellian, Kappa and Cairns distributions. Here dynamics of dust is described by the fully nonlinear continuity and momentum equations. A set of two characteristic wave nonlinear equations is obtained and numerically solved to examine the DA
Arshad M. Mirza +4 more
arxiv +6 more sources
The effects of electrostatic charging on the dust distribution at Halley's Comet
, 1986 The distribution of fine dust near Comet Halley at its 1910 and 1986 apparitions is investigated by means of computer simulations, taking the effects of EM forces due to the dust electrostatic charge into account. It is found that the nucleus spin period
M. Horányi, D. A. Mendis
openalex +2 more sources
The Past Orbit of Halley's Comet [PDF]
Monthly Notices of the Royal Astronomical Society, 1972 I have re-examined the records in the Chinese“Standard Histories”on this famous object, including one set of relatively precise observations made in the year 837 A.D., which has only recently become available in an English translation (Ho 1962). This set, when properly interpreted, consists of the comet’s right ascension on 10 specified dates, given to
T. Kiang
openaire +4 more sources
The Perturbations of Halley's Comet [PDF]
Monthly Notices of the Royal Astronomical Society, 1907 P. H. Cowell, A. C. D. Crommelin
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