As Rama and Laxman, along with Sugriva and rest of Vanara army left from Kishkindha (Hampi/Bellary – Karnataka, India) towards Lanka (Candy, Sri Lanka), Laxman observed a comet afflicting nakshtra Mula.
The Comet Laxman was in apparition near nakshatra Mula during 24 August- 24 September 12209 BCE.
It appears, based on my research (The Historic Rama) that this comet is what we know in our times ad comet Encke. The comet was re-discovered (we are certain that it was observed my many through millennia before ours) in 1786. This comet belongs to a class of short period comets.
I named this comet – Comet Laxman, after Laxman of Valmiki Ramayana, who saw it first in documented history of humanity.
Many readers requested additional information about Comet Laxman (Encke).
Comet Laxman comes once each orbit closer to the Sun than does the innermost planet, Mercuyr. In 1819, J . F. Encke was studying the repeated returns of the comet and thus was named Comet Encke. Since the period of Comet Laxman is 3.3 years, it is a good comet to study for modern astronomers.
Encke found, to his considerable surprise, that in every perihelion passage the comet was arriving a couple of hours early (note the extent of accuracy) – even after perturbations by Jupiter and the other planets were properly taken into account.
This early arrival, with each successive apparition put the new astronomy (Newtonian) in an awkward position: comets had been touted as the proof of a precise and universal law of gravitation, but at least one comet chose not to play along.
(Information based on, ‘Comet’ by Carl Sagan and Ann Druyan)