'222 



PHILOSOPHICAL TRANSACTIONS. 



[anno 1782. 



41. p Herculis, Fl. 86". 



Oct. 10. — Double. Excessively unequal. The 

 small star is not visible with 227, nor with 278. I 

 saw it very well with 46'0. L inclined to pale r ; 

 S d. Distance, by pretty exact estimation, IS". 

 Position, by very exact estimation, 30° s preceding. 



42. In constellatione Herculis. 



Oct. 10. — Double. It is a star just by >. Con- 

 siderably unequal. L inclined to r ; S inclined to 

 blue. Distance IS" 19"'. Position 4° oV n pre- 

 ceding. 



43. /i Eridani, Fl. ultima. In origine rluvii. 



Oct. 22. — Double. It is the middle of 3 telescopic- 

 stars. Very unequal. L w ; S r. 



44. In constellatione Tauri, near Fl. 4. 



Dec. 22. — Double. It is a small telescopic star 

 south following s. Extremely unequal. L w ; S d. 

 Fifth Class of Double Stars. 



1. <? Herculis, Fl. 11. In sinistra humero. 

 Aug..';, 177.°. — Double. Extremely unequal. Lwj 



S inclining to r. Distance 33".7 5- Position 7 -° '2V 

 s following. 



2. * £ Lyra;, Fl. 6". 



Aug. 29- — Double. Pretty unequal. L w ; S w 

 inclining to pale rose colour. Distance 41" 58"', 

 perhaps a little inaccurate. Position 02° 18' s follow- 

 ing, a little inaccurate. 



3. */3Lyrae, Fl. 10. Duarum in jugimento borea. 



Aug. '.'9. — Quadruple. All w. First and 2d con- 

 siderably unequal. First and 3d very unequal. First 

 and 4th very unequal. The .d a little inclining to r. 

 The 3d and 4th more inclining to r. Distance of the 

 1st and 2d 43" 57"'. Position 60° 28' s following, a 

 little inaccurate. 



4. & Cephei, Fl. 27. Sequitur tiaram. 



Aug. 31. — Double. Considerably unequal. L red- 

 dish w ; S blueish w. Distance 38" 18'", a bright 

 object. 



5. •(- /3 Cygni, Fl. 6. In ore. 



Sept. 12. — Double. Considerably unequal. L 

 pale r ; S a beautiful blue. The estimation of the 

 colours the same with 227 and 460. Distance 39" 32'", 

 pretty accurate. Position 36° 2S' n following. 



6. * v Scorpii, Fl. 14. Duarum adjacentium 

 boreae frontis, borea. 



Sept. 19. — Double. Very unequal. Both w. Dis- 

 tance 38" 20"', pretty accurate. Position 6'9° 28' n 

 preceding 



7. /* Sagittarii, Fl. 13. In summo arcu, borealis. 

 Sept. 19. — Treble. Two small stars near on each 



side. L w ; S both r. Distance of the nearest about 

 30". Position — preceding, the other — following. 



8. *■ Herculis, Fl. 7- In dextri brachii ancone. 

 Sept. 20. — Double. A little unequal. L r; S 



garnet; or L pale r; S r. When the stars are low the 

 first estimation of the colours will take place. Dis- 

 tance 39" 59"'- Bosition 79° 37' n following. Has 

 a 3d star. 



9. 1 Bootis, Fl. 21. — Trium in sinistra manu, 

 media. 



Sept. 27. — Double. Very unequal. I. w; S d. 

 Distance 37" 56. This is not a mean of the mea- 



a motion in one of the stars, 

 or two may show. Position 



Trium in cingulo pres- 



sures; for I suspect 

 which another year 

 52° 51' n following. 



10. * <?' Ononis, Fl. 34. 

 cedens. 



Oct. 0". — Double. Considerably unequal. L w; 

 S blueish r Distance 52".9b"8 full measure. Position 

 88° 10' 11 preceding. 



11. f » Dr.Honis, Fl. 24 and 25. In ore duplex. 

 Oct. 19. — Double. A little unequal. L pale r; 



S pale r. Distance 54' 48". Position 44° 19' n 

 preceding. 



From the right ascension and declination of these 

 stars in Flamsteed's catalogue we gather, that in his 

 time their distance was 1' II". 418; their position 

 44° 23' n preceding ; their magnitude equal or nearly 

 so. The difference in the distance of the 2 stars is so 

 considerable, that we can hardly account for it other- 

 wise than by admitting a proper motion in either one 

 or the other of the stars, or in our solar system; most 

 probably neither of the 3 is at rest. 



12. * A Arietis, Fl. 9. In vertice. 



Oct. 30.-T-Double. Considerably unequal. L pale 

 r; S dusky garnet. Distance 36"' 44'", a little inac- 

 curate. Position 42' 0' n following. 



13. <p Tauri, Fl. 52. Borea sequentis lateris 

 quadrilaleri in Cervice. 



Oct. 30. — Double. Distance 55".625, inaccurate. 



14. In constellatione Monocerotis. 



Dec. 5. — Multiple. It is a spot over the right fore- 

 foot ; 4 or 5 small stars within 1 minute. 



15. c Ursa; majoris, Fl. 16". 



May 2, 1780. — Double. Very unequal. L whitish 

 r; S d. Distance with 46'0, 48" 59'". Position 

 79° 51' s preceding. 



16". <r Piscium, Fl. 76. Duarum in ore piscis 

 sequentis borealior. 



Aug. 3. — Double. Extremely unequal. L pale r ; 

 S dusky r. Distance 48". 125, pretty accurate. Posi- 

 tion 15° 28' n preceding. 



17. t Andromeda?, Fl. 29- In dextro humero. 

 Aug. 25. — Double. Extremely unequal. L w; 



S blueish. Distance 34" 12"', inaccurate. 



18. « Cassiopeae, Fi. 18. In pectore. 

 Aug 31. — Double. Extremely unequal. 



r; S d. Distance 52".812. Position 5° 26' 

 ceding. 



19- ^ Herculis, Fl. 20. In dextro brachio. 



Sept. 4. Double. Extremely unequal. L reddish 

 w; S r distance 41" 49", a little inaccurate. Position 

 19° 30' s preceding. 



20. c Pegasi, Fl. 1 

 Sept. 8. — Double. 



d ; Distance 37" 5 

 n preceding. 



21. t Aurigae, Fl. 29- 



Sept. 26. — Double, about 30". 



22. A Auriga", Fl 15. 



Sept. 30. — Multiple. Two, within about 30". 



23. In constellatione ( Irionis. 



Oct. 10. — Double. It is a star following/. Dis- 

 tance about 40". 



L pale 

 n pre- 



Very unequal. L pale r; S 

 pretty accurate. Position 38° 19' 



