(Q77918181)
Statements
2.2589
2.248227±0.000561
6±3 milliarcsecond per year
−4±3 milliarcsecond per year
18.994±0.01
1 reference
18.842±0.01
1 reference
19.511±0.029
1 reference
18.864±0.013
1 reference
19.30
19.06
18.68±0.03
56,000,000 centimetre per square second