Table 2 from Popper (1957) Radial Velocities of Z Vul Plate UT HJD Phase B Star A Star Residuals Velocity n* Velocity B Star A Star CG 1946 (2400000+) km/s km/s km/s km/s 4909 June 4.443 31975.946 0.815 +57. 10 -254. -6. -32. 4917 7.389 31978.892 0.015 -100. 2 -16. -16. 4923 10.383 31981.886 0.234 -113. 10 +208. 0. +10. 4926 12.267 31983.770 0.002 -100. 2 -23. -5. 4950 14.272 31985.775 0.818 +56. 9 -204. -7. +16. 4952 15.325 31986.828 0.248 -104. 10 +200. +9. +1. Ce 1955 9855 June 14.365 35272.868 0.797 +66. 6 -220. -1. +11. 10023 Sept 3.240 35353.743 0.741 +72. 7 -185. +1. +55. 10027 4.151 35354.651 0.111 -98. 6 +133. -18. +13. 10028 4.231 35354.734 0.145 -88. 5 +134. +6. -19. 10036 6.204 35356.707 0.948 +45. 5 -101. -8. 1956 10428 Apr 22.457 35585.957 0.332 -102. 12 +181. -1. +10. 10433 23.463 35586.963 0.742 +66. 13 -230. -5. +10. 10745 Sept 24.153 35740.655 0.347 -92. 9 +155. +4. -4. Xd 1955 685 Oct 30.106 35410.605 0.903 +36. 11 -155. +4. -9. 1956 1594 May 26.399 35619.901 0.159 -105. 11 +179. -7. +15. 2183 Nov 17.118 35794.616 0.328 -90. 10 +165. +12. -8. 2192 18.130 35795.628 0.740 +68. 9 -280. -3. -40.