By Dr Manish Pandit (Paper by Dr Narahari Achar)
There are numerous references in Udyogaparvan and Bhismaparvan in the Mahabharata which detail position of planets during the war.
Some authors have said that there is a confusion between the references in these two Parvas (books) of the Mahabharata. Dr Achar has given an excellent exposition of how these references are not contradictory but form a very consistent set. This is a beautiful slide presentation but a published peer reviewed paper can be given to you on request.