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a

7,

8

of the principal fized Stars.

291 Cygni. 1812, Sept. 15, 16, 17, 18, 20, 356,846 Mean of 10 (56,846

21, Oct. 2, 3, 4, 5 Oct. 8, 10, 13, 14, 16, 22, 23,56,568 Mean of 20 56,707

, Nov. 15, 19, 20, 21, 22, 23, 24, Dec. 8, 9, 10

} 56,980 Mean of 30 56,798 Dec. 13, 30. 1813, Jan. 8, 9, 10, 16, 22, Feb. 8, 9, 10

}57,405 Mean of 40 56,925 Feb. 15, 28, March 6, 11, 12, 16, 20, 26, 27, Apr. i

} 57,178 Mean of

50 56,975 July 27, 28, 29, 30, Aug: 3.4" }56,665. Mean of 60 56,940

5, 7, 9, 10

Aug, 11, 12, 13, 15, 17, 19, 20,}56,887 Mean of 70 56,947

21, 22, 23

Result very exact.

a Lyre.

Mean of

400,325

16, 19

1812, July 6, 7, 9, 10, 14, 17, } 6,123 Mean of 10 6,123

21, 22, 23, 24 July 28, 30, 31,

Aug. 1, 6, 12, } 0,514 Mean of 200,318 13, 15, 16, 17 Aug: 18, 19, 20, 21, Sept. 151} 0,364 Mean of 30 0,334

16, 18, 19, Oct. 1, 2 Oct. 3, 4, 5, 8, 9, 10, 12, 151} 0,299 Oct. 21, 24, 26, 28, 29, 31,} 0,983

"}} 0,983 Mean of 50 0,457 Nov. 13, 15, 19, 20, 21, 22, 23; } 0,857 Mean of 60 0,522

, . , , Dec. 9, 10, 12, 13, 1813, Jan. } 0,514 Mean of 70 0,521

2, 7, 9, 15, 21, June 22 June 23, 24, 25, 26, 27, 28, 20,

*} 0,501 Mean of 80 0,519 July 5, 6, 9, 10 July 11, 12, 13, 16, 17, 18, 19.} 0,187 Mean of 900,482

Qq

Nov. 2, 3, 7,

8

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23, 24, 25
MDCCCXIII.

Castor.

1812, Aug. 13, 19, 21. 1813,

Jan. 16, 24, 28, Mar. 5, 7,146,916 Mean of 10 46,916

10, 16

Mar. 18, 23, 31, Apr. 3, 8, 11,}46,672 Mean of 20 46,794

13, 15, 28, June 1

Aug. 11, 14, 16, 23, 24, 28,
Sept. 2, 6, 7, 10

}46:596 Mean of 30 46,728 Pollur.

1812, June 13,15,19, Aug. 13,

16, 17, 19, Oct. 1, 3, 4 Oct. 11. 1813, Jan. 16, 22, 24, 356,332 Mean of 20 56,434

Feb. 28, Mar. 5,10,13,18,23 Mar. 31, Apr. 8,11,13,15, Maylı 28, June 1, 25, July 28, 30

356,318 Mean of

30 56,894 Aug. 3, 5, 11, 16, 22, 23, 24,356,380 Mean of 40 56,34 1 25, 28, Sept. 1

}56,380
Exact to a quarter of a second,

B Tauri,

1812, July 20, 22, 30, Aug. 18,

19, 21, Nov. 19, 28. 1813,143,650 Mean of 10 43,650

Jan. 2, 8 Jan. 10, 11, 13, 24, 25, 27, 28,} 43,438 Mean of 20 43,544

81, Mar. 1, 3 Mar. 5,6,7,12, 17, 18, 19, 21,

} 43,410 Mean of 30 43,499 Apr. 9, 10 Apr. 11, 12, 14, July 15, 16, 17, }43,903 Mean of 40 43,600

25, 28, 29, 30 July 31, Aug. 6, 8, 9, 11, 15. } 43,820 Mean of 50 (43,663 , ,

Exact to less than a quarter of a second.

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35,811 Mean of go 36,485| of the principal fired Stars.

293 a Cor. Bor. 1812, June 11, 12, 13, 14, 15-1}55,441 Mean of 10 55,441

19, 21, 22, 23, 28 June go, July 4, 6, 8, 9, 15, 18,

}55,295 Mean of 20 55,368 19, 20, 21 July 22, 26, 28. Aug: 13. 15. } 55,316 Mean of 90|55,351

17, 18, 19, Sept. 15, 16 Sept. 19, 20, 21, Oct. 3, 4, 5, 6, 8, 18, 20

}56,041 Mean of 40 55,523 Oct. 26, 28, 29, 31, Nov. 20, 21, 22, Dec. 7, 12, 14

}55,791 Mean of 50 55,577 1813, Jan. 8, 9, 11, May 29, June 7, 8, 10, 12, 16, 18

} 54,833 Mean of 60 55,453 June 21, 22, 24, 25, 27, 29,}55,008 Mean of 70|551389

56, 1012 July 16, 17, 18, 19, 20, 23, 24, 55,487 Mean of 80 26, 27, 28

}55,487 Mean of 80 55,401 Exact to less than a quarter of a second.

a Arietis. 1812, June 18, 19, 22, 23, 26, 28, July 6, 7, 9, 10

1}87,380 Mean of 10 37,380 July 14, 17, 20, 21, 22, Aug. 17}36,263 Mean of 20 36,822

Oct. , , 28
Oct. 29, 31, Nov. 3, 5, 6, 7, 8,

9, 15, 19
Nov. 21, 22, 24, 28, 29, Dec. 6,
7, 8, 13. 1813, Jan. 8

336,582 Mean of 40 |36,497 Jan. 9, 16, May 29, June 19}36,474 Mean of 50|36,492

, 46, 11, I mentioned this star as doubtful in my former Catalogue. I believe the discordances were quite accidental, and that the mean result is within a quarter of a second of the truth.

Arciurus.

1812, June 11, 12, 13, 15, 16, 318,729 Mean of 10|18,729

21,

20, 26

Nov. 3, 5

July 4, 6, 7, 8, 9, 11, 15, 18,

} 19,867 Mean of 20 19,298 July 18, 31, Aug: 7; 14, 18, 19"}19,342 Mean of 3019.319

Sept. 20, 21, Oct. 2, 4
Oct. 7, 9, 13, 16, 18, 24, 25, 26,

}19,225 Mean of 4019,291 Nov. 6, 7, 14, 18, 21, 22, 23, Dec. 6, 7, 8

$19,453 Mean of 50 19,323 Dec. 12, 14, 23. 1813, May 24, 26, 27, 28, 31, June 1, 4)

18,761 Mean of 60 19,230 June 7, 8, 10, 11, 12, 16, 21,

318,585 Mean of 70 19,137 June 27, July 5, 6, 7, 9, 12, 16, 18, 19, 23

1}18,653 Mean of 80|19,077 Exact to a quarter of a second, or less.

Aldebaran.

22, 25, 26

1812, June 23, 28, July 5, 7, 8,

|}35,614 Mean of 10 35,614 9, 10, 25, 26, 28 Aug. 14, 16, 17, 19, 21, Sept. 5. }35,135 Mean of 20 35-374 Dec. 25,

8 Jan. 11, 16, 22, 24, 28, 31, 335,475 Mean of 30 35,407

Feb. 23, Mar. 1, 6, 7
Mar. 11, 17, 18, 19, 31, Apr. 4,

}35,390 Mean of 40 35,402 8, 9, 10, 11 Apr. 12, 14, 15, June 28, July 385,347 Mean of 50 35,392

6, 8, 10, 15, 16, 17 July 23, 25, 27, 28, 29, 30 35,142 Mean of 56 35,365

Result very exact.

ß Leonis.

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1812, June 13, 14, 15, 22, 29, 357,544 Mean of 10 (57,544

July 6, 8, 9, 11, 12
July 15, 23, Oct. 2, 3, 4, 6, 7

|$57,077

Mean of 20 57,310 14, 15, 22

This star has not been often observed, owing to its proximity in right ascension to y Urs. Maj.; but the result is probably exact to within o",3, as it very seldom happens that the mean of twenty observations differs a quarter of a second from the truth

a Herculis.

1812, July 11, 14, 30% Aug 3} 13,835 Mean of 10|1,3835

, Sept. 19 Sept. 20, 21, Oct. 3, 4,8,9, 29,

} 14,170 Mean of 20 14,002 g1, Nov. 15, 21 Nov. 22, 23, Dec. 12. 1813,

Jan. 9, 11, 15, July 11, 25,13,803 Mean of 30 13,936

27, 28

July 29, 30, Aug. 2, 4, 7, 9, 10;}14,223 Mean of

40 14,008 12, 13, 15 Aug. 17, 18, 19, 23, 24, 30, 31,

|}14,169 Mean of 50/14,040 Sept. 5, 6, 13

Result very exact.

a Pegasi. 1812

, Oct. 1, 2, 3, 4, 5, 8, 10, 351,330 Mean of 1051,830 Oct. 17, 21, 28, Nov. 3, 7, 9•}52,060 Mean of 20|51,695

11, 12, 16

19, Dec.

5, 7, 12
This star is reserved for future examination.

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