3 0 '

M! H. M.T.

8h 9"'24' 9 I 59 9 1 7 45 8 35 48 7 58 39 8 '5 5 2

8 3 58

_ _ _ _ .

8 I 29

302

sh I Sm26S94 5 18 25.37 5 16 57.87 5 1 1 30.65 5 1 I 6.38 5 10 42.61 5 1 0 20.92 5 1 0 0.09

Observations of Comet 1889 . . . (Barnard March 31) by E. E. Bm-nard, A s t r o n o m e r o f t h e L i c k O b s e r v a t o r y .

9.604 9.658 9.674 9.673 9.657 9.619 9.663 9.664

The following observations are a continuation of those published in .4. N. 2894. The comet was seen on the i 1 t l 1 of April but was so excessively faint from moonlight and haze, that it is

On the 1 5 ' ~ it was excessively faint from moon and haze. thought best not to include the observation in this list.

P o s i t i o n a n g l e s o f t h e t a i l . April 3 9h 80:o (3 obs.) r\pril 1'7 9h 75?0 (3 obs.) April 18 9h 78?3 (3 obs.)

I t could be traced for about KO' to 15'. The tail was very difficult to measure on all the dates. The nucleus is perfectly stellar and about 1 3 magnitude.

- 1 ~ 4 6 ' 5 0 - I 31.96 -3 '5.54 +o 9.21 -0 15.05 -0 38.81 - 1 0.50

- 1 21.32

I 889

- 6'43'.'3 10.7 - o 4.1 1 2 . 7 - 1 I 3.9 8.8 + 4 23.3 10.6 -+ 2 30.7 17.5 + o 32.9 16.7 - I 17.9 1 2 . 7

- 3 1 0 . 5 1 2 . 7

April 3 3 5

15 16 ' 7 18 19

* I

2

3

a 1889.0 1 d 1889.0 -4uthority

5h20m14?30 +16O 7 ' 19:'s W, 5h519-22 (mean of the two places) 5 19 58.19 + 1 6 o 35.8 Comp. with W, 54519-22 5 X I 2 2 . 5 1 + I S 32 5.5 Comp. with W, 54346

_ _ - __

1889 I a I d l o g r I logd ~ H

Juniz9 gh9"' 7' +1z03517 0.3535 0.4991 0.75 Juli I 9 9 1 2 2 7 . 5

3 9 9 1 2 19.0 0.3543 0.4944 0.76 5 9 7 1 2 1 0 . 2

1 9 3 1 2 1 .0 0,3553 0.4890 0.78 9 8 56 X I 5 1 . 5

I 1 8 47 I I 41.6 0.3565 0.4829 0.80 13 8 35 11 31.3 15 5 8 2 1 + I I 20.6 0.3578 0.4760 0 . 8 2

1889 I n 1 d 1 l o g r 1 l o g d I H

Juli 1 5 5h8" '2~s +1i020:6 0.3578 0.4760 0.82

' 9 7 42 10 57.8 0.3503 0.4684 0.84

2 3 6 5 0 , 1 0 33.0 0.3609 0.4600 0.87 2 5 6 18 1 0 19.8 2 7 5 4 1 10 6.1 0.3627 0.4508 0.90

' 7 8 3 I I 9.4

21 7 18 1 0 45.7

29 5 0 9 51.8 31 5 4 '4 + 9 36.9 0.3647 0.4409 0.93

+16' 0' 3079 +16 o 27.4 + I S 56 10.3 + I 5 36 23.3 + I 5 34 30.7 + I 5 32 32.8 + I S 30 42.0 + I 5 28 49.4

M e a n P l a c e s o f t h e C o m p a r i s o n S t a r s f o r 1889.0.

0.605 0.646 0.666 0.668 0.649 0.653 0.65 5 O 655

Red. ad 1. app.

-0S86 -5!'3 -0.86 -5.3 -0.89 -5.3 -1.07 - 5 . 5 -1.08 - 5 . 5 -1.09 -5.6 -1.09 -5.6 - 1 . 1 0 -5.6

Ir_ I z I

3 3 3 3 3

h,lf Hamilton I 889 April 20. E. E. Barnard.

n = 5"6m325, d = +10'28:1. Berlin 1889 Mai 1 5 . A. Berberich.