93 3270

3 ) 7 4 0 5

94

Partiale Mondfinsterniss 1894 Sept. 14. Obgleich der Rand des Kernschattens sehr verwaschen erschien, wurde notirt :

1894 Sept. 14 von Dr. W. Luther Anfang um 1 6 ~ 2 ~ 2 9 ~ M. 2. Dilsseldorf 1? B 14 3 Prof. Rob. Luther B P 1 6 3 o x 2

Schon vor Monduntergang wurde es neblig. Dusseldorf I 894 Sept. 24. R. Luther.

Observation of the Transit of Mercury, 1894 November 10. The contacts at egress were well observed here. A

very light fog prevailed from sunrise to within about half an hour of the egress, and during this interval, the images of the sun and planet being well defined, I frequently exami- ned the planet. Although a very small white spot was oc- casionally seen in the centre of its disc there was no trace of a halo or of a satellite. After the disappearance of the fog the images continued to be well defined but occasionally tremulous. The internal contact of limbs was well seen at 1 9 ~ 1 5 ~ 0 5 9 IocaI mean time, there being no black drop or distortion of the planet. The observed time is possibly a second late. Two times were noted for the external con- tact. The indentation was observed to vanish at 19" 16~35?1 , but I thought I could again distinguish it for a moment at

1 9 ~ 16~38J6 . The mean of these times will probably give a good approximation to the time of external contact. The instrument ernployed was the 41f2 inch equatorial with its full aperture and a magnifying power of 1 2 0 diameters ad- apted to Cooke's diagonal prismatic eyepiece. The com- bination in the eyepiece was exactly that employed by me in the observation of the transit of Venus in 1874 and the transits of Mercury in 1881 and 1891. The sun's limb was a straw yellow against a black background. I n order to ensure all possible accuracy in the determination of the error and rate of the chronometer employed transits of stars were observed on the evenings preceding and foll- owing the phenomenon and a group of five stars was also observed between sunrise and the egress of the planet.

Private Observatory, Windsor, N. S. Wales, 1894 Nov. 1 7 . John Tebbutt.

Ephemeride des Planeten (352) (1893 AH). l a h M. Z. Ber l in .

I895 log Y log A 1895 a app. ____ 7h58m 4s

55 5 0 53 43 5 ' 45 49 56 48 16 46 44 45 2 2

44 9 43 5 42 I I

41 26 40 5 0 4 0 23

log r log A

Jan. 6 8

I 0 I 2

14 16 I 8 2 0

2 2

24 26 28 30

Febr. I

3

36m25S 33 42 30 56 28 7 25 15

19 28 16 35 '-3 43 10 54 8 9 5 29 2 54

8 o 25

2 2 2 2

7 58 4

+42O 2117 42 '3.9 42 5.0 41 54.9 41 43.7 41 31 .2 41 17.6 41 2.8 40 46.1 40 29.5 40 I 1.2

39 51.8 39 31.5 39 1 0 . 2

+38 48.1

0.3723

0.3733

0.3 7 44

0.3755

0.3766

0.3777

0.3 7 89

0.380 I

0 .1573

0.1553

0.1546

0.1552

0.1571

0.1603

0.1648

0.1705

Febr. 3 5 7 9

13 '5 1 7

19

23 2 5

2 7 Marz I

I 1

2 1

+38048!1 38 25.3 38 = . 7

37 12.8 36 47.6 36 22 .0

35 56.2 35 30.1 35 3.9 34 31.5 34 11.0

33 44.6 33 18.2

+32 51.9

31 37-5

0.3801

0.3814

0.3826

0,3839

0.3852

0.3866

0.3819

0.3893

0.1 705

0 . 1 7 7 2

0.1850

0.1938

0.2033

0 . 2 135

0.2243

0.2355 Grosse in der Opposition : 10415.

photographischen Oertern vom 22. und 23. Dec. 1894 (Nizza) scheint der Planet jetzt einige 'on obiper Enhemeride zu stehen. Es ware zii wiinschen. dass die mpenwartive Rrscheiniin~

Nach genaherten Komnminuten sudwestlich ~ - o ... ..~- _______._I_ I --- ~~ - o...~~~~ ........ . _ ~ .... _.. - - ~ ~ . - ~ ~ ~ ~ . . ~ .... ~~~. -. .~ _. _ _ des Planeten andauernd verfolgt wird, da die nachsten Oppositionen wieder ungunstiger sein werden.

Berlin, Kgl. Recheninstitiit, 1894 Dec. 30. A. Bdrberich.

Neuer Planet 1894 BN. Plankte Charlois 28 Decembre I 29925 t. m, Nice AR. = I 1 2 O 47' DP. = 6g0 35' Mouvement diurne :

-15' t 3 ' . Grandeur 12". Perrotin.