1
I43 Mouv. pour I jour +21S 16 11 6 + I - 4 9 '3 18 23 27 32 36 40 44 48 -51-5 344 I 8 -O020.'I o 40.7 I 1.4 I 22.1 I 42.8 2 3.5 2 24.1 2 44.5 3 4.5 3 24.2 3 43.6 4 2.5 4 20.9 4 38.7 5 12.1 4 55.8 27.6 I897 0,149 Sept. 20 24 26 28 39 4 6 8 22 Oct. I0 I2 '4 16 I8 20 22 0.0981 C? Professor J. C. Kapteyn has from time to time com- municated to me lists of suspected variable stars, or, at least, of stars whose estimated magnitudes differ greatly according to different authorities, or which occur in the fh3 lm52' 32 3' 33 0 33 20 33 30 33 29 33 18 32 58 32 29 31 51 3' 3 30 6 29 0 27 46 26 24 24 54 4 23 '7 Cordoba DM. and are wanting in the C.P.D. and vice versa. By systematic visual observation of the stars contained in these lists Mr. R. T. A. Innn~s has proved the four foll- owing additional stars to be variable. - Mouv. pour I jour - 10'3 10.3 10.3 I 0.4 10.4 10.3 10.2 10.0 9.9 9.7 9.5 9.3 9.0 8.7 8.3 7.9 - 75 0.173 0.1044 t 0.166 0.1ot~2 0.158 0.09'18 1897 Oct. 24 26 28 30 Nov. I 3 5 7 9 I3 '5 '7 '9 .2 3 25 I1 21 a +h 2 I"34' '9 44 '7 49 '5 49 '3 45 *I 37 9 27 7 I4 5 0 2 45 I 0 30 3 58 '5 56 2 53 50 51 4' 49 35 3 47 3 3 Paris 1897 Aoh. New Southern Variable Stars. Mouv. pour I jour ~ - 54! 57 59 61 64 65 66 67 67 67 67 65 64 -62 68 66 - 5" 4213 5 56.0 6 3.7 6 20.3 6 30.7 6 40.0 6 48.0 6 54.8 7 0.4 7 4.7 7 7.7 7 9.4 7 9.9 7 9.2 7 7.2 7 4.0 -6 59~6 Mouv. pour I jour - ./lo 6.5 6.0 5.3 43 4.2 3.6 3.0 2.3 '7 - 0.4 0.8 1.4 +2.0 1 .o +0.2 I44 1 ~ r2Az 0.138 0.126 0.1 13 0. I00 0.086 log A 0.1019 0.1098 0.1222 0.1601 (I) This star does not appear in Thome. Visual estimates with the 7 inch Equatorial Febr. 13 to June 14 prove it to vary within the limits 9.0 to 9.7. (2) Visual estimates at Cordoba and Washington range from 6 to 8 mag., C.P.D. photographs 1888 and 1890 from 7m9 to 9910. The star is orange coloured (colour 6.8 on Chandler's scale). Mr. Innes' visual observations prove certain variability 6.8 to 7.8, probably in a period of 45 days. (3) This star does not occur on any of the three plates taken for the C.P.C. whilst Th. gives mag. 7.8. Mr. Innes has made th,e following visual estimates : 1897 1897 April 2 8m7 June 12 9415 3 8.9 I4 9.5 II 8.9 29 9.9 On April 2 the star is estimated $red coloureda and (4) C. P. D. 9.4 to missing. Visual observations by Mr. Innes : on April 3 *yellow<. Th. 8.7. 1897 '897 April 27 9915 May 5 9mr 30 9.2 '3 9.2 May 2 9.2 3' 9.4 Royal Observatory, Cape of Good Hope, 1897 July 21. David Gill. Pianeta (377) (1893 AN). Correzione dell' effemeride (Veroff. R. I. Nr. 4) : 1897 Agosto 6 - 1~40~ - 7:o. A. Antoniaszi. 11 pianeta fu stimato non superiore alla I z8 grandezza. Inhalt zu Nr. 3441. W. Dobcrck. On the orbit of p* Bootis. 129. - W. Strutonof. Kate sur les Pleiades. 137. - I-'. Risfcnpurt. Gelegentliche Ueobachtungen auf der Grossh. Sternwarte Karlsruhe. 141. - G. LCVCUU. Suite de l'ephCm6ride de la cornhte periodique de #Arrest 1897.. .. 141. - D. GiZI. New Southern Variable Stars. 143. - A. Antoniuaai. Pianeta (377) (1893 AN). 143. Cfeschlossen 1897 Aug 16. Xerausgeher: H. Kreutz. Drnck von C. Schaidt. Expedition: Kiel, Wrangelstrasse 6.

New southern variable stars

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Page 1: New southern variable stars

I43

Mouv. pour I jour

+ 2 1 S

16 11

6 + I

- 4 9

'3 18 23 2 7

3 2 36 40 44 48

- 5 1 - 5

344 I

8

-O020. ' I

o 40.7 I 1.4 I 2 2 . 1

I 42.8 2 3.5 2 24.1 2 44.5 3 4.5 3 2 4 . 2

3 43.6 4 2 . 5

4 20.9 4 38.7

5 1 2 . 1 4 55.8

27.6

I897

0,149

Sept. 2 0

24 26 2 8

39

4 6 8

2 2

Oct.

I 0 I2

'4 16 I 8 2 0

2 2

0.0981

C?

Professor J . C. Kapteyn has from time to time com- municated to me lists of suspected variable stars, or, at least, of stars whose estimated magnitudes differ greatly according to different authorities, or which occur in the

f h 3 l m 5 2 '

32 3' 33 0

33 2 0

33 30 33 29 33 18 32 58 32 29 31 5 1

3' 3 30 6 29 0

2 7 46 26 24 24 54

4 23 '7

Cordoba DM. and are wanting in the C.P .D. and vice versa. By systematic visual observation of the stars contained

in these lists Mr. R. T. A. I n n n ~ s has proved the four foll- owing additional stars to be variable.

- Mouv. pour I jour

- 10'3 10.3 10.3 I 0.4 10 .4 10.3 10.2

10.0

9.9 9.7 9.5 9.3 9.0 8.7 8.3 7.9

- 7 5

0.173 0.1044 t 0.166 0.1ot~2

0.158 0.09'18

1897

Oct. 24 26 28 30

Nov. I

3 5 7 9

I 3 '5 ' 7 '9

.2 3 2 5

I 1

2 1

a

+h 2 I"34' ' 9 44 '7 49 '5 49 ' 3 45 * I 37 9 2 7

7 I4 5 0

2 45 I 0 30 3 58 '5

56 2

53 50 5 1 4 ' 49 35

3 47 33

Paris 1897 Aoh.

New Southern Variable Stars.

Mouv. pour I jour

~

- 54! 57 59 61 64 65 66 67 67 67

67

65 64

-62

68

66

- 5" 4213 5 56.0 6 3.7 6 20.3 6 30.7 6 40.0 6 48.0 6 54.8 7 0.4 7 4.7 7 7.7 7 9.4 7 9.9 7 9.2 7 7.2

7 4.0 -6 5 9 ~ 6

Mouv. pour I jour

- ./lo

6.5 6.0 5.3 4 3 4.2 3.6 3.0 2.3 ' 7

- 0.4

0.8 1.4

+2.0

1 .o

+0.2

I44

1 ~

r2Az

0.138

0.126

0.1 13

0 . I00

0.086

log A

0.1019

0.1098

0 . 1 2 2 2

0.1601

(I) This star does not appear in Thome. Visual estimates with the 7 inch Equatorial Febr. 13 to June 14 prove it to vary within the limits 9.0 to 9.7.

(2 ) Visual estimates at Cordoba and Washington range from 6 to 8 mag., C.P.D. photographs 1888 and 1890 from 7m9 to 9910. The star is orange coloured (colour 6.8 on Chandler's scale). Mr. Innes' visual observations prove certain variability 6.8 to 7.8, probably in a period of 45 days.

(3) This star does not occur on any of the three plates taken for the C.P.C. whilst Th. gives mag. 7.8. Mr. Innes has made th,e following visual estimates :

1897 1897 April 2 8m7 June 1 2 9415

3 8.9 I4 9.5 I I 8.9 2 9 9.9

On April 2 the star is estimated $red coloureda and

(4) C. P. D. 9.4 to missing. Visual observations by Mr. Innes :

on April 3 *yellow<.

Th. 8.7.

1897 '897 April 2 7 9915 May 5 9mr

30 9.2 '3 9.2 May 2 9.2 3' 9.4

Royal Observatory, Cape of Good Hope, 1897 July 2 1 . David Gill.

Pianeta (377) (1893 AN). Correzione dell' effemeride (Veroff. R. I. Nr. 4) : 1897 Agosto 6 - 1 ~ 4 0 ~ - 7:o. A. Antoniaszi. 11 pianeta fu stimato non superiore alla I z8 grandezza.

I n h a l t zu Nr. 3441. W. Dobcrck. On the orbit of p* Bootis. 129. - W. Strutonof. Kate sur les Pleiades. 137. - I-'. Risfcnpurt. Gelegentliche Ueobachtungen auf der Grossh. Sternwarte Karlsruhe. 141. - G. LCVCUU. Suite de l'ephCm6ride de la cornhte periodique de #Arrest 1897.. .. 141. - D. GiZI. New Southern Variable Stars. 143. - A. Antoniuaai. Pianeta (377) (1893 AN). 143.

Cfeschlossen 1897 Aug 16. Xerausgeher: H. Kreutz . Drnck von C. Scha idt . Expedition: Kiel, Wrangelstrasse 6 .