(Q79992884)
Statements
0.6933
0±3 milliarcsecond per year
2±3 milliarcsecond per year
17.84±0.02
18.186±0.013
1 reference
16.942±0.173
16.333±0.204
15.723±0.2
18.25
18.09
17.812±0.006
1 reference
17.796±0.007
1 reference
17.846±0.008
1 reference
234,000,000 centimetre per square second