SIMBAD follows this error in its object query result as "* 145 CMa – Star".
Tezzlaff et al. gives a large mass of 7.8 M☉ and a young age of 35 million years,[6] while Earle Luck gives a smaller mass of 1.9 M☉ and a higher age of 1.05 billion years.
[13] Based on the assumption that it is a supergiant, 145 CMa has been given a large radius of 315 R☉ and a luminosity of 23,660 L☉.
[7] Assuming it is a giant, Earle Luck gives a much lower luminosity of 5,250 L☉ with a corresponding radius of 156 R☉.
[5] An older measurement based on the Hipparcos distance of 435 parsecs (1,420 ly) give a lower luminosity of 5,960 L☉.