According to analysis by Opta, 16 points would almost certainly secure a top-eight place and 10 would be good enough for a play-off spot.
Celtic are therefore likely just four wins and a draw from advancing directly to the knockout rounds or two wins and a draw away from securing a play-off.
Brendan Rodgers’ side have won their past two home games in the competition but have not won on the road in the Champions League since during the manager’s first spell in charge in 2017.
Borussia Dortmund are up next in Germany in two weeks, and will pose a far stiffer test, before matches against RB Leipzig, Club Brugge and Young Boys in Glasgow and trips to face Atalanta, Dinamo Zagreb and Aston Villa.
“Our next three games are tough but exciting,” Rodgers said. “We know it’s a long road.”