BPeriod (P)50.1284 ± 0.0043 yrSemi-major axis (a)7.4957 ± 0.0025″Eccentricity (e)0.59142 ± 0.00037Inclination (i)136.336 ± 0.040°Longitude of the node (Ω)45.400 ± 0.071°Periastron epoch (T)1,994.5715 ± 0.0058Argument of periastron (ω)(secondary)149.161 ± 0.075°තොරතුරු  පුවරුවSirius AMass2.063±0.023[12] M☉Radius1.711[13] R☉Luminosity25.4[13] L☉Surface gravity (log g)4.33[14] cgsTemperature9,940[14] KMetallicity [Fe/H]0.50[15] dexRotational velocity (v sin i)16[16] km/sAge242±5[12] MyrSirius BMass1.018 ± 0.011[12] M☉Radius0.0084 ± 3%[17] R☉Luminosity0.056[18] L☉Surface gravity (log g)8.57[17] cgsTemperature25,000 ± 200[13] KAge228+10−8[12] MyrOther designations Dog Star, Aschere, Canicula, Al Shira, Sothis,[19] Alhabor,[20]Mrgavyadha, Lubdhaka,[21] Tenrōsei,[22] α Canis Majoris (α CMa), 9 Canis Majoris (9 CMa), HD 48915, HR 2491, BD−16°1591, GJ 244, LHS 219, ADS 5423, LTT 2638, HIP 32349[23] Sirius B: EGGR 49, WD 0642-166, GCTP 1577.00[24]Database referencesABසිරියස් යනු රාත්‍රි අහ