(Q78303266)
Statements
0.6978
2±4 milliarcsecond per year
−2±4 milliarcsecond per year
19.29
19.31±0.027
1 reference
18.958±0.011
1 reference
18.979±0.014
1 reference
18.964±0.048
1 reference
19.43
18.97±0.009
1 reference
240,000,000 centimetre per square second