M87's radio core shows a proper motion of 10.19 μas yr⁻¹ at position angle 189.2°, implying a tangential velocity of 787 km s⁻¹ and a peculiar velocity of ~1037 km s⁻¹ at 65° to the line of sight.
2013a, VizieR Online Data Catalog: Fitted proper motions for the DR solution (Titov+, 2013),, VizieR On-line Data Catalog: J/A+A/559/A95
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The Peculiar Velocity of Messier~87 from Microarcsecond Geodetic VLBI Astrometry
M87's radio core shows a proper motion of 10.19 μas yr⁻¹ at position angle 189.2°, implying a tangential velocity of 787 km s⁻¹ and a peculiar velocity of ~1037 km s⁻¹ at 65° to the line of sight.