Fifth-of-a-Day Ephemeris for Comet Pons-Winnecke, 1927 June 25-July 2

Comet Pons-Winnecke. Geocentric Dynamica

Comet Pons-Winnecke. Geocentric Dynamical Ephemeris, 1927 June 20—July 3

✍ R. T. A. Innes 📂 Article 📅 1928 🏛 John Wiley and Sons 🌐 English ⚖ 324 KB

It is impossible for two reasons, to compute a precise geocentric ephemeris of this comet in the ordinary way during the time of its closest approach to the Earth. The first reason is that the solar ephemeris is only given to 7 aecimals, and this is not sufficient when the comet's coordinates are ne