38 3

Planet (228) Agathe (429) [I891 DL1

(568) Cheruskia (569) Misa

>

1905 QX '905 QZ

B

1905 RB >

1905 R C 3

1905 RD

'905 R E

1905 RF

1905 RH

1905 K T

%

%

>

>

I905 RU I905 RV

405 4

Beobachtungen von kleinen Planeten. '905

Nov. 3 Okt. 18

B 2 8

'9 2 1

% I 9

Nov. 3 Okt. 19

)5 30

Nov. 2

Okt. 29 Nov. 3 Okt. 28 Nov. 2

Okt. 1 7 B 28

30 Nov. 3

> 3 B 3 > 3

2 2 2

> 2 2

Wen, k. k. Sternwarte, I 905

M. Z. Wien

l oh 3Im49' 8 29 4 1

I 0 29 1 5

1 0 8 49 6 4 6 4 I 15 I 8 28 41 9 '3 56

1 1 26 30 1 0 39 53 6 56 6 I 2 7 1 0

9 4 4 5 5 9 5 5 24

I I o 52 9 59 2 1

9 0 56 7 12 35 8 44 57

1 0 2 1 16 I I 48 28 '3 9 46 14 9 33

Nov. 6.

a aPP. 0 ~ 3 6 ~ 3 8 ! 6 8

2 2 36 49.70 2 2 38 10.64 2 1 2 5 12.54 22 1 7 58.42 21 29 55.06 23 34 56.17 23 33 46.83 o 16 26.75 o 1 2 18.59

23 I 2 9.22 23 9 49.70 23 24 0.17 23 24 4.88 23 2 0 54-90 23 19 44.00 2 2 19 3 1 . 1 2

2 2 2 1 3.32

o 33 28.15 1 46 47.7' I 51 1 2 . 4 7 1 54 4.04

0 35 38.94

10gp.

8.943 8.548, 9.346 9.394 9.0 I 8n 8.636, 9.034, 8.105 9.013 9.018 9.335n 8.986, 8.93 7 9.130 9.3 '3

8.61 2

8.863, 9.1 I I n 8.812 8.957 9.332 9.4 5 9

9.156

The Algol variable 79.1905 Cephei (044880).

8 aPP.

+ I 5 1 15.0 + 0 47 8.7 +lo 13 18.3 __ 9 I 0 2 5 . '

- 1 2 43 56.6 - I o 45.8 - 0 I9 2 . 1

+ I 37 2 0 . 0

- o 16 23.1 - o 2 43.8 + 0 3 33.3 + 3 36 11.3 + 3 43 17.0

+ 4 31 42.7 i- 4 48 37.5 + 2 41 53.2 + 2 29 0.7

+IO 4 6.4 + 9 49 30.9 +15 2 1 4 7 . 8 4-12 6 8.7 + 9 8 55.2

+ 9" 21.1 53:'s

384

logp. A

0.742 0.802

0.8 I I

0.866 0.884 0.82 I 0.8 I 7 0.804 0.816 0.815 0.8 I 5

0*750

0.789 0.190 0.787

0.798

0.782 0.196

0.737 0.733 0.680 0.729 0 . 7 7 1

The announcement was made in the A. N. 169.11 I by Professor Ceraski that the star whose position is RA. 4h48m34', Decl. +80D 5!8 (1900) is a variable of the Algol type. A careful watch has been kept of it by Mr. L. Campbell which showed that it was faint on the evenings of Sept. I, 14, and Oct. 2 1 , 1905. A period of 12.5 days is thus indicated.

EP. J. D. G. M. T. 575 2417152.90 1905 NOV. ~ ~ 2 1 ~ 3 6 ~ 5 76 7165.32 2 '5 7 4' 511 7 1 1 7 * 7 4 % 2 7 'I 45

The range of this star is about 1.7 magn. and for four or five hours it remains at nearly constant minimum bright- ness. It will be noticed that the period 12d42 is longer than

J. PaZisa.

From an examination by hlrs . Fleming of the photographs taken with the Cooke Anastigmat, it appears that the minima are nearly represented by the formula, J.D. 241001 1.4+12.42E. It may accordingly be expected to be faint on the dates given below :

EP. J. D. G. M. T. 578 2417190.16 1905 Dec. l o d 3h50m

580 7215.00 1906 Jan. 4 o o 5 19 7202.58 > 2 2 I3 55

that of any Algol star as yet discovered except UZ Cygni, 215543, which has a period of 31d304. The next longest period is S Cancri, 083819, period 9d485.

Harvard College Observatory, 1905 Oct. 26. Bdward C. Piekering.

B e r i c h t i g u n g e n zu Nr. 3044 Bd. 127 p. 327 Z . 2 0 v. 0. Dez. 8 a app. lies: ~ 2 ~ 5 0 ~ 3 ' 5 6 8 app. lies: -4'22' 5710. D D D D D 334 D 6 v. 0. * 76 a 1890.0 lies: 2 Z h 5 0 " 4 ? 0 2 8 1890.0 lies: -4°27'50:0. D >> D D D D D D 7 v. 0. lies: 22h56"7077 -4O26' 110 Paris 33071 (mitE.B.). D s 4003 D 167 D 315 D 11 v. u. Nov. 14 I. Beob. Act lies: --I"'I?OI a a p p . lies: 2h30m4832. D D 4014 D 168 D 93 D 2 4 v . 0. (548) [ I ~ o ~ P C ] Nov. 1 7 A8 lies: -0'55y2 bapp. lies: +7"12' 017. D D 4015 D > >> IOO s 17 v. 0. *202 b statt: +25O31'4118 lies: +25O31'47:7. Dernentsprechend

sind auch die beiden Beobachtungen von 19oqPH Dez. 16 auf p. 93 zu korrigieren.

I n h a l t zu Nr. 4054. H. E. Lau. Mikrometerrnessungen von Doppelsternen. 369. - D. Dubiago. Gelegentliche Beobachtungen auf der alten Universitatssternwarte in Kasan. 379. - M. Wolf. Photographische Aufnaholen von kleinen Planeten 1905 Nov. 6 . 381. - 7. Pulisa. Beobachtungen von kleinen Planeten. 383. - E. C. PickeriBg. The Algol variable 79.1905 Cephei (044880). 383. - Berichtigungen. 383.

Geschlossen 1905 Nov. 16. Herausgeber: H. Kreutz . Druok YOU 0. Seha idt . Expedition: Kid, Niemannsweg 103.