GrORE — On Suspected Variable Stars. 399 



1^0. 648. 37 Heis Capeicorni. — 6 m. Harding. Xot in Lalande's 

 Catalogue. 6-7 Heis, who says, " Stella ab Hardinoio observata a me 

 17. Aug. 1852, et 19. Aug. 1865, nudis oculis videbatur, sed 17 Aug. 

 1863, et Sept. 23, et Sept. 27, 1870, non conspicua erat. Stella fortasse 

 Tariabilis est." It is 6-6 m. in the Uranometria Argentina. The star 

 lies s.f. 6 Capricorni. 



August 10, 1876, I found it about 6 m., and =20 Capricorni; a 

 little brighter than 21. 



October 18, 1876, about the same magnitude. 



November 1876, very slightly brighter than 21 - not equal 19 or 20. 



August 30, 1877, brighter than 21, but less than 20 Capricorni. 



1^0.649. 27 Capkicoeni = Lalande 40948. — 6 m. Lalande; 6 Heis; 

 6"6 Johnson (1858). The Cordoba estimates vary from 6-3 to 6'8. 

 Sir W. Herschel gives 26 (x') -27. 6-16 H.P. 



No. 650. 6 Equulei.— 5* and 7 m. Lalande (41055-6); 5 m. 

 Harding. Not in the Catalogues of Ulugh Eeigh, Tycho Brahe, or 

 Hevelius; not given by Heis; 6'2 Gould; 5-89 H.P. 



It lies closely s.f. y (5) Equulei. Webb remarks that y and 6 are 

 "a striking pair." Sir W. Herschel says [Phil. Trans., 1796), "In 

 the Catalogue we have 4 m. ; in the Observations Flamsteed has once 

 marked it 6 m., and once 8 m. If there be any accuracy in these 

 various notations the star must certainly be changeable." 



I found it less than y in September, 1877. 



No. 651. P XXI., 21 Equtjlei.— 6, 6| Lalande (41136-7); 8 m. 

 and 9-10 m. d'Agelet; 8 Piazzi ; 9 Bessel ; 7-5 in Durchmusterung ; 

 7-0 Gould. 



September 11, 1877, I found this star less than Lalande 41018 

 but brighter than Lalande 40977, and LL 41352. 



No. 652. Lacaille 8721 Pavonis. — 5|^and 6 Lacaille ; 6Behrmann; 

 5-6 Cape Catalogue (1874-71). Gould believes it to vary by not less 

 than half a magnitude. 



No. 653. 29 Capeicoeni. — 6 m Lalande ; 5 Harding ; 6 Heis. Sir 

 W. Herschel found t - 29 - 30 ; 5-7 Gould; 6 m. Pranks, and =30, 

 Capricorni, October 4, 1877 ; 5-47 H.P. 



September 30, 1876, I found it much less than t, and about ^ mag. 

 less than 30 (6 m. Heis). 



October 6, 1879, 29 nearly half a magnitude less than 30. 

 Closely n.p. 29 is an 8^ m. star, Lalande 41220. 



No. 654. BiEMESTGHAM 579 Cephei. — 7 m. Piazzi; 8 Argelander; 

 8-5 Secchi. Birmingham's estimates of magnitude (1872 to 1875) 

 vary from 6-5 to 7-5; 9 m. Copeland, 1875, September 28; 8 m. 

 Burton, 1875, August 10; and 7-6, 1876, August 12, 20, and 31. 



