observations of comet 1906 h (metcalf)

1
213 1892.30 92.40 92.52 92.76 93-21 93.45 94.47 95.49 95.53 96.32 93.21 93.42 4189 20600 206.1 206.2 206.3 206.5 206.7 D D 201.2 201.8 > 208.2 2'4 logp. A 0.653, 0.648, 0.658, 0.628, 0.626, 0.631, 0.624, 0.630, 0.628, 0.625, 0.621, 0.624, 0.622, 0.619, 0.623, 0.623~ 0.624, 0.654, 0.6~6, F Q4 Red. ad 1. app. +3?07 +g:o D D +2.98 +4.9 +3.16 +3.3 D D +3.16 +3.2 +3.12 +3.1 +3.18 +2.9 B +3.19 ~ 2 . 5 +3.19 +2.2 D D +3.20 +1.8 +3.21 +1.4 +3.21 +1.2 D D +g.ao -+I.x Epoch I 8, I 3h59m~4?65 2 3 59 34.68 3 3 59 37.62 4 3 59 45.46 5 3 59 52.98 Q4 -5O35' 3!'0 BD-~0809,cp.with*4,phot. -5 28 53.0 Anon., comp. with *7 -5 13 35.9 Anon., comp.with *8 -5 35 23.7 BD-5"813,cp.with*5,phot. -5 a8 23.8 BD-5"814,cp.with*6,phot. 8, - 44 Observer 40 - 8, Observer Gill Sellors Tebbutt Pickering Douglass Pickering Sellors Tebbutt Sellors Tebbutt See D D Epoch 1897.08 99.33 1900.33 00.35 00.48 01.08 01.39 01.98 02.1 I 02.22 03.2 I 05.48 05.5 I 84 20806 209.7 210.2 D D 2 10.5 2 10.7 2 11.0 m 21 1.1 21 1.6 2 12.7 D eo - Q~ -0!'16 -0.06 +0.03 +0.07 -0.16 +0.13 - 0.0 I -0.11 -0.10 +O.IO -0.05 +0.24 - 0.08 Qo - Q4 - oY63 +0.40 +0*33 + 0.0 3 +0.06 + 0.06 0.00 - 0.0 I - +0.07 +0.17 -0.37 +0.22 + 004 - 0.6 -0.5 + 0.6 +0.4 +0.3 -0.3 0.0 0.0 + 0.4 +0.3 0.0 -0.2 Cogshall Tebbutt Lunt Innes Gill Innes Tebbutt Gill Innes Tebbutt Doberck 2 1!'40 2 1.66 21.68 D D 2 1.67 2 1.65 21.61 27.59 21.51 21.45 20.99 D - 004 + 0.3 +0.3 0.0 -0.1 +0.1 0.0 -0.1 +O.l +0.2 - 0.4 - 0.6 +0.3 19:68 19-14 I 9.80 '9.93 20.15 20.25 20.26 20.68 21.03 2 1.24 2 1.40 D 21.02 W. Doberck. Hongkong Observatory, I 907 Febr. I I, Observations of comet 1906 h made at the Royal Observatory, Cape of Good Hop , :Metcalf) with the 18-in. Equatorial, by Messrs. Lunf, Simpson and Baldwin. - Jc - 9 9 10 10 8 8 8 8 8 2 2 6 1 1 8 8 1 3 3 - )bs L B L B L B B S L B S L B S L L L B S - heenw. M.T ba Distance Ab Pos. Angle -0' 2811 +5 25.1 +5 5.3 +5 27.2 +5 22.6 +2 4.0 +2 4.0 -0 48.8 4oa 46' 37 50 342" 49' 343 38 -4' 819 4-2 59.5 -2 354 56" 4 1' 54 20 -1 1.1 - 5' 2 474 I go6 Nov. 20 20 21 21 Dec. 4 4 5 5 6 7 7 13 '3 '5 18 10 20 21 21 8h 50~59' 10 2 42 1 41 8 8 16 24 8 22 27 1 43 49 8 930 8 36 42 I 43 58 I 46 33 8 34 50 8 935 I 58 40 8 12 35 I 35 53 8 I1 57 8 12 9 7 52 23 8 51 37 - 1"'46)73 --I 4'1.70 -2 5.25 -2 6.27 -1 10.77 -1 11.33 -1 20.52 -I 20.85 -1 29.31 3 5:4 28.7 - Irn20!I0 I 80!'8 I7 1.2 -2m li00 -I 23.17 231:s 244.2 -1 48.34 4h 3m18689 4 3 17.92 4 3 5.07 4 3 4.05 4 0 5.99 4 0 5.43 3 59 56.24 3 59 55.9' 3 59 41.46 3 59 39.41 3 59 39.04 3 59 20.99 3 59 14.26 3 59 14.49 3 59 15.80 3 59 28.41 3 59 44.23 3 59 54.'' 3 59 54.10 Mean places of the comparison stars. Authority * I a 1906.0 1 d 1906.0 I Authority d 1906.0 - 5" 27' 7!'4 -5 25 16.3 -3 32 32.1 -3 49 14.0 -5 12 44.8 a 1906.0 4h Om37?90 4 1 4.19 4 I 13.60 4 5 2.55 4 5 7.34 BD - 5O8 18, cp.with * 8, phot. Anon., phot. BD- 5"822,Hel.cp.w.Val,ph. BD - 3O695, Hel. cp. with * I o Lick IV (Pi 4h262) 10 9 i Stars I, 4, 5, 6, 1, 8 were measured from a photograph of the region, taken at the Cape. Observers Notes. Nov. 2 I. Comet very faint in moonlight. - Dec. 7. Comet extremely faint, not possible to ob- serve transits. - Dec. I 8. Comet very faint and difficult. - Dec. 2 I. Comet very faint in moonlight, just possible to observe. 14.

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Page 1: Observations of comet 1906 h (Metcalf)

213

1892.30 92.40 92.52 92.76

93-21

93.45 94.47 95.49 95.53 96.32

93.21

93.42

4189

20600 206.1 206.2 206.3 206.5

206.7 D

D

2 0 1 . 2

201.8 >

208.2

2 ' 4

l o g p . A

0.653, 0.648, 0.658,

0.628, 0.626, 0.631, 0.624, 0.630, 0.628, 0.625, 0.621, 0.624, 0.622, 0.619, 0.623, 0 . 6 2 3 ~

0.624,

0.654,

0 . 6 ~ 6 ,

F

Q4

Red. ad 1. app.

+3?07 +g:o D D

+2.98 +4.9

+3.16 +3.3 D D

+3.16 +3.2

+3.12 +3.1 +3.18 +2.9

B

+3.19 ~ 2 . 5 +3.19 +2.2

D D

+3.20 +1.8 +3.21 +1.4 +3.21 +1.2

D

D

+g.ao -+I.x

Epoch I 8,

I 3 h 5 9 m ~ 4 ? 6 5 2 3 59 34.68 3 3 59 37.62 4 3 59 45.46 5 3 59 52.98

Q4

-5O35' 3!'0 BD-~0809,cp.with*4,phot. -5 28 53.0 Anon., comp. with * 7 -5 13 35.9 Anon., comp.with * 8 -5 35 23.7 BD-5"813,cp.with*5,phot. -5 a 8 23.8 BD-5"814,cp.with*6,phot.

8 , - 44 Observer 40 - 8, Observer

Gill Sellors Tebbutt Pickering Douglass Pickering Sellors Tebbutt Sellors

Tebbutt

See

D

D

Epoch

1897.08 99.33

1900.33 00.35 00.48 01.08 01.39 01.98 0 2 . 1 I

0 2 . 2 2

03.2 I 05.48 0 5 . 5 I

84

20806 209.7 2 1 0 . 2

D

D

2 10.5

2 10.7 2 11.0

m 2 1 1.1

21 1.6 2 12.7

D

eo - Q~ -0!'16

-0.06 +0.03

+0.07 -0.16 +0.13

- 0.0 I

-0.11

-0.10

+ O . I O

-0.05

+0.24 - 0.08

Qo - Q4

- oY63 +0.40

+0*33

+ 0.0 3 +0.06 + 0.06

0.00

- 0.0 I -

+0.07

+0.17 -0.37

+0.22

+ 004 - 0.6 -0.5 + 0.6 +0.4 +0.3 -0.3 0.0

0.0

+ 0.4

+0.3 0.0

-0.2

Cogs hall Tebbutt

Lunt Innes Gill Innes Tebbutt Gill Innes

Tebbutt Doberck

2 1!'40

2 1.66 21.68

D

D

2 1.67 2 1.65 21.61 27.59 21.51 21.45 20.99

D

- 004 + 0.3 +0.3

0.0

-0.1

+0.1

0.0

-0 .1 + O . l

+0.2

- 0.4 - 0.6 +0.3

19:68 19-14 I 9.80 '9.93 20.15

2 0 . 2 5

20.26 20.68

21.03 2 1.24

2 1.40

D

21.02

W. Doberck. Hongkong Observatory, I 907 Febr. I I ,

Observations of comet 1906 h m a d e a t t h e R o y a l O b s e r v a t o r y , C a p e of G o o d H o p ,

:Metcalf) w i t h t h e 18-in. E q u a t o r i a l ,

by Messrs. Lunf, Simpson and Baldwin. - Jc

-

9 9

10

10

8 8 8 8 8 2

2

6 1

1

8 8 1 3 3

- )bs

L B L B L B B S L B S L B S L L L B S

- heenw. M.T ba

Distance Ab

Pos. Angle

-0' 2811

+ 5 25.1 + 5 5.3 + 5 27 .2

+5 22.6 + 2 4.0 + 2 4.0 -0 48.8

4oa 46'

37 50

342" 49' 343 38

-4' 819 4 - 2 59.5 - 2 3 5 4

56" 4 1'

5 4 2 0

-1 1.1

- 5' 2 474

I go6

Nov. 2 0

2 0

2 1

2 1

Dec. 4 4 5 5 6 7 7

13 '3 '5 1 8

10

2 0

2 1

2 1

8h 5 0 ~ 5 9 ' 10 2 4 2 1 41 8 8 16 24

8 2 2 2 7

1 43 49

8 9 3 0

8 36 42 I 43 58 I 46 33

8 34 50

8 9 3 5

I 58 40 8 1 2 35 I 35 53 8 I 1 57

8 1 2 9

7 5 2 23

8 5 1 37

- 1"'46)73 --I 4'1.70 - 2 5.25 -2 6.27 - 1 10.77 - 1 11.33 - 1 20.52 - I 20.85 - 1 29.31

3 5:4 28.7

- Irn20!I0

I 80!'8 I 7 1.2

-2m li00

-I 23.17 231:s 244.2

- 1 48.34

4h 3m18689 4 3 17.92 4 3 5.07 4 3 4.05 4 0 5.99 4 0 5.43 3 59 56.24 3 59 55.9' 3 59 41.46 3 59 39.41 3 59 39.04 3 59 20.99 3 59 14.26 3 59 14.49 3 59 15.80 3 59 28.41 3 59 44.23 3 59 54.'' 3 59 54.10

Mean p l a c e s of t h e c o m p a r i s o n s t a r s .

Authority * I a 1906.0 1 d 1906.0 I Authority d 1906.0

- 5" 27 ' 7!'4

- 5 2 5 16.3 -3 32 32.1 -3 49 14.0

-5 1 2 44.8

a 1906.0

4h Om37?90 4 1 4.19 4 I 13.60 4 5 2.55 4 5 7.34

BD - 5 O 8 18, cp.with * 8, phot. Anon., phot. BD- 5"822,Hel.cp.w.Val,ph. BD - 3O695, Hel. cp. with * I o Lick IV (Pi 4h262) 10 9 i

Stars I, 4, 5 , 6, 1, 8 were measured from a photograph of the region, taken at the Cape.

O b s e r v e r s Notes . Nov. 2 I . Comet very faint in moonlight. - Dec. 7. Comet extremely faint, not possible to ob- serve transits. - Dec. I 8. Comet very faint and difficult. - Dec. 2 I . Comet very faint in moonlight, just possible to observe.

14.