Readers will note that the intended position of Sirius on the Prime Meridian, Greenwich....part of London at midnight at 1st January :-
Sirius midnight culmination New Year’s Eve | Tonight | EarthSky
England adopted the Gregorian Calendar on 14th September 1752, but 11 days were taken out of the calender, so effected the first Gregorian New Year at midnight on 1st Jan. 1753.....where was JUPITER....please read link:-
What Happened in 1752?