77

Comparisons

n 4 s 4 P I N z g n 6 s 3 N z p

p z q 3 r 2 u 4 w 2 x X 5 Y 2 8 4 0 3 N o r

z 7 n 3 N o S p x 2 N 3 v

n 7 s 4 N 2 P

r 3 i U 2 N 3 n

( p o c i 3 N 6 A

394 I

I

56.00 5 2 . 8 0

5 3 3 0

85 .75 94.05

102.60 100.60 110.80

78

13ho

13.2 1 7 . 2

16.9 '3.9

14.3

- -

Date

11

I11 I1

I1 I1 I1 I

11

I1 Mean Remarks 1 Mag.

9.00 8.86

' 8.88

10.11

10.46 1 0 . 7 3 i 10.66 I 1.05

1902 Mar. 2 0

April 15 May I

Aug. 16

56.17 53.34 53.70

-

94-22 -

100. I 2

I I 1.30

56.09 53.07 53.75

85.75 94.14

102.60 I 00.36 I 1 1 . 0 5

Moon Strong moon Near horizon Strong moon,

Strong moon near horizon

Sept. 1 8 Nov. 2 8

1903 Febr.20 April 1 8

The three

Near horizon

I Step = 0.0418 mag. I Mag. = 2 4 o steps. weight. The two comparison stars d and n should not have

been used together. The interval between them is a full magnitude, and it was in fact underestimated in steps. l h e step in these three estimates is about twice as large as in the others. This difference will however not affect the re- sults by formula 11.

If the number of steps in these and the former ob- servations of the Nova appear larger than what high authori- ties have recommended, it is well to observe that according to Table 11:

Thus the average step here employed is about one half of Schonfeld's step and somewhat less than one half of Argelander's. Bot these observers not unfrequently used half-steps, which taken as the unit measure would make their records similar to those published here. By warning against more than 4 steps they meant to say that an inter- val estimated in steps should be less than half a magnitude.

Georgetown College Observatory, 1903 Dec. 2 5 . y. G. Hagen, S. J

Oppositions- Ephemeride des Planeten (502) [ 1903 LC]. 1 2 ~ M. 2. Ber l in .

Juni 2

6

'4 I 8

I 0

2 2

1 8 ~ 4 i m l S S 38 4 34 33 30 46 26 49

I 8 2 2 45

+4O 39' 33" 4 29 5 2

4 I 5 5 ' 3 5 1 2 2

3 34 2 5

+ 3 7 5

0.3997

0.4022

0.4034

0.4009

0.40 4.6 0.4058

0.2161 0 . 2 I 1 7 0 . 2 0 8 2

0.2056

0 . 2 0 4 0

0.2034

Juni 26 30

Juli 4 8

16 I 2

rSh I 8'"39' 14 35 1 0 36 6 48

18 3 '3 ' 7 59 5 5

+2'35' 36" 2 0 I 2

I 2 1 1 6 + o 39 1 0

-0 5 2 4 0 -0 5 38

0.4070 0.408 I 0.4093 0.4 I 04

0.4126 0 . 4 X 1 5

0.2040 0.2056 0.2083

0.2169 0 . 2 2 2 7

0 . 2 1 2 1

Grofle = 14.0. Opposition Juni 26.

Der Ephemeride, die nach dem Ristenpartschen Vorschlage auf mittlere Orter gestellt ist, liegen meine Elemente A. N. 3876 zugrunde. Storuogen durch Jupiter uod Saturn sind beriicksichtigt.

-~ Bremen, Dezember I 903. Hans Osten.

Beobacht,ungen von Planeten auf der k. k. Sternwarte in Wien. Planet

1904 ND 1904 NN 1904 NO

a

1904 N Q 1904 NS 1904 N'T I904 NV

I904 April 1 4 ' I 4 " 3

I 2

)) I 2

1, 1 3 I3 I 4

M. %. Wien 9h31" 6' 9 0 9

10 2 5 1 2

9 0 37

'I 39 41 11 I 4 54 I 2 31 23

9 4 7 6

Gr.

I 3mo '3.5

1 4 . 0

-

-

a aPP. 8 h 2 2 " 9594

10 I 3 1.53 1 0 I1 8.81

1 2 36 14.87 1 2 42 7.84

1 0 I 14.44

I 2 2 8 2 7 . 2 2

'3 5 4 8.30

l o g p . A

9.414 8.700 9.012 8.318 9.121

7.009 8.136

8.1 I8

6 aPP. + I 4 O 48' I 31'2 + 8 11 25.1

+13 5 2 21.3 - o I I 14.6 + 8 54 58.7. + 9 2 5 1 2 . 7

- I 2 0 10.9

+ I3 42 41.4

1ogp.A 0.720

0.751 0.699 0.693 0.816 9.745 0.739 0.824

- I 4 . 0

Korrektion der Ephemeriden (Veroff. R. I. 2 2 ) . (274) Philagoria April I 2 : - los -012; (403) Cyane April I 2 : -59" +4:8; (478) Tergeste April 1 3 : -3oS +2!3.

r. Palisa. Wien, k. k. Sternwarte, 1904 April 16.