Note 630 — Chapter XIX · SHORT-PERIOD VARIABLES.
Reading edition
Its fourth member, Y Sagittarii, was added by Sawyer in 1886, Astr. Journ. No. 328; Yendell, Pop. Astr. vol. ii. p. 364.
Reading edition
Its fourth member, Y Sagittarii, was added by Sawyer in 1886, Astr. Journ. No. 328; Yendell, Pop. Astr. vol. ii. p. 364.