Abstract
THE COMET OF 1812.—Under certain suppositions as regards the epoch of perihelion passage of this comet, the return of which may now be expected, it will be necessary to search for it on a particular date, upon the assumption that it has yet a considerable orbital angle to describe before arriving in perihelion, because the geocentric position corresponding to a small orbital angle will place the comet too near to the sun's position to allow of observations. If we employ the elliptical elements deduced by Mr. W. E. Plummer from a new reduction and discussion of several of the most reliable series of observations in 1812, we find the following values of the comet's heliocentric equatorial coordinates and of the radius vector for intervals of 100 days to 60 days before perihelion passage; the coordinates are referred to the equinox of 1881.0.
Article PDF
Rights and permissions
About this article
Cite this article
Our Astronomical Column . Nature 24, 40–41 (1881). https://doi.org/10.1038/024040a0
Issue Date:
DOI: https://doi.org/10.1038/024040a0