220 



MR. ALFRED BROTHERS S 



d Serpentis (continued). 



Epoch. P. 



Morton 



Main 



Dembowski .. 



Knott 



Kaiser 



Dawes 



1857-40 

 1862-33 

 1863-43 

 1865-41 

 1865-54 

 1865-55 

 1866-45 



193-40 

 190-16 

 192-20 

 189-95 

 192-30 

 191-22 

 189-80 



D. 



3'37 

 2-96 



3*19 

 3'32 

 3-18 



3'24 

 3 '42 



y Corona Boeealis. 



S 1967. 



E. A. 15^ 37™ 4". 

 Deo. N. 26" 43' 30". 

 Mags, a =4, b =6 J. 

 Colours: Smyth, 1842, flushed wh., 

 uncertain; Secchi, 1857, yellow, 



purple. 







Struve 



1826-75 



111-05 



Smyth 



1839-69 



225-00 



,, 



1848-37 



295-00 



Secchi 



1857-51 



289-32 



Dawes 



1858-96 



281-46 



Dembowski .. 



1862-56 



292-90 



Secchi 



1866-51 



rou 



0-72 

 0-30 

 0-50 



0-36 

 0-47 



wedg'd 



^ScoRPii(=F1.51LiBR^). 21998. 



E. A. 15I1 56"! 57S. 

 Dec. S. 10° 59' 55". 



A:B. 

 Mags, a =4^, 6=5. 

 Colours : Smyth, 1 842, bright white, 

 pale yellow; Webb, 1856, yellow, 

 yellowish green. 



Herschel. 

 Smyth.... 



Secchi 



Dembowski 



Dawes 



Secchi 



1782-36 



7-s8 



1834-42 



6-60 



1842-56 



23-50 



1846-49 



24-90 



1855-54 



53-60 



1864-95 



152-02 



1865-54 



156-91 



1866-51 



i6i-oo 



A : C. c —jir, grey. 



Herschel. . . . 



Smyth 



Dawes 



Smyth 



Secchi , 



Main 



Dembowski 

 Secchi* 



1780-39 

 1834-42 

 1840-56 

 1846-49 



1855-54 

 1861-42 

 1865-38 

 1865-49 



88-37 

 '6-10 

 69-45 

 68-10 

 70-47 

 72-80 

 71-02 

 249-66 



1-50 

 1-40 



1-20 

 1-00 

 0-47 



Sep. 



0-57 

 0-4 + 



6-38 



7-20 



7-43 

 7-00 

 7-50 



6-93 

 7-11 



7-10 



* Evidently should be — 189°. 



49 Serpentis. 



S 2021. 



E. A. i6'i 7™ oK 

 Dec. N. 13° 53' 37". 

 Mags, a ='j, b —ji. 

 Colours: Smyth, 1839, pale white, 

 yellowish; Main, 1862, both whi. 





Epoch. 



Herschel 



South 



1783-18 

 1823-28 

 1832-70 

 1839-29 

 1849-44 

 1854-58 



1855-48 

 1856-01 

 1862-37 

 1864-80 



Struve 



Smyth 



Dawes 



Smyth 



Morton 



Secchi 



Main 



Dembowski .. 



P. 



D. 



29i"33 



2-50 



311-57 



4-21 



316-41 



3-20 



318-10 



3-30 



321-27 



3-3 ± 



323-00 



3*20 



322-41 



3-('5 



33^*35 



3-45 



323-43 



3-53 



324-60 



3-53 



Orbital period, about 600 years. 



S 2026 Heeculis. 



E. A. (i860), i6'i 7«i48^ 



Dec. N. 7° 44". 



Mags, a =8i, b =9! 

 Colours: Secchi, 1856, both yellow. 



Struve 



Madler 



Secchi 



Dembowski 



1830-94 

 1838-05 

 1856-56 

 1865-39 



345-92 

 342-02 

 325-60 

 326-10 



2-54 

 2-39 

 1-78 

 1-50 



a Corona Boeealis. S 2032. 



E. A. 16I1 9"! 37^ 

 Dec. N. 34° 12' 12". 



A:B. 

 Mags, fl =6, * =6^. 

 Colours: Smyth, 1843, white, smalt- 

 blue; Webb, 1856, yeUow, bluish; 

 Secchi, 1865, white, blue. 



Herschel. 

 Struve. . . .■ 

 Smyth.... 



Secchi.. 

 Dembowski .. 

 Dawes.. 



Secchi . . 



1802-74 



11-24 



1827-02 



89-21 



1839-67 



145-10 



1852-25 



176-80 



1857-61 



183-57 



1864-94 



191-24 



1865-38 



191-48 



1865-81 



192-45 



1-31 



i-6o 



2-20 

 2-42 

 2-79 

 3-08 

 2-97 



Perihelion passage, 1826. 

 A: C. c =11, dusky. 



Smyth. 



Secchi , 



Dembowski . 

 Secchi 



1830-76 

 1852-25 

 1855-61 

 1862-60 

 1866-62 



90-00 

 90-00 

 88-25 



88-35 

 87-10 



43-30 

 46-30 



49-45 

 51-04 



