Note 774 — Chapter XXIV · TEMPORARY STARS.
Reading edition
E. C. Pickering, Astroph. Journ. vol. xii. p. 52; Harvard Circular, No. 56; Astr. Nach. Nos. 3651, 3664.
Reading edition
E. C. Pickering, Astroph. Journ. vol. xii. p. 52; Harvard Circular, No. 56; Astr. Nach. Nos. 3651, 3664.