asna.18550390904

Nr.
131
921.
132
Beohchtuogcu des Coinelen IV. 1853, der Proserpina , der Egerio iiiid des iieuen voii Herr11 Ferxpmn
en ttlec k te 11 11
' n ti etcn, v ( 111 I Ie I'im Direct o r RiirnEer
.
Hiirob. m. Zt.
'
AR.
&
Decl.
1854 Sept. 15
8h39'" 4s4
133'48' 22"9
ti
19
21
23
25
27
7 49 25,2
8 27 28,O
8 11 19,0
8 2 29,3
8 5 l6,O
7 37 49,l
148
153
157
161
163
4
18
31
2
56
53,O
5,4
21,8
40,8
49,4
7 39 18,5
165 14 20,3
29
7 91 44,l
166 27 7,4
'I
15
19
21
27
9
10
9
9
8 5,0
16 16,O
47 10,6
31 16,2
H 47 5 5 , 5
340 40
340 2
339 17
338 55
337 57
&
Vergl.
71
69
66
61
9 22,4
0 21,9
4 1 58,9
17 46,3
61
18
5
35,Y
59 18 50,4
58
r o s e r p i
4
45,4
14 8 26,O
-14
4-72'53
8 55 13,409
73 0 27,3
7 1 5 32,5
69 8 58,s
66 38 39,7
64 20 34,8
61 5 1 33,8
59 26 54,G
57 50 14,4
58 24 19,6
+56 41 43,l
O"O
a.
11
--I3 41 32,4
13 5 1 59,O:
14
5
2
3
8
2 49,2
4-36 45 46,O
8''55" 13'645
9 30 59,241
9 57 5.545
10 14 29,971
10 25 55,587
10 1 3 38,607
10 53 22,581
10 57 5 6 , 1 1 5
11 0 21,839
I1 10 46,294
2
6,l
21,7
14.7
39,8
Angenornmene sch. arter der Vergl.-Sterne.
AR.
Dccl.
4-73' 0' 27"4
1 4 1 35 42,6
18
1851 Sept. 12
--
- - T{
C o m e t IV. 1854.
3 38,6:
20 5 8 , 6
6
22 45 9,438 -13
clerselbe.
22 11 54,106
14
22 38 31,194
I4
23 32 23,825 - 1 1
I
1
6
6
52 11,9
21 29,7
17 23,6
22 55,4
E g e r i a .
1851 Sept. 29
9 22 32,2
23 51 47,s
- 3 39
55,2
4
1 34 16,045
- 3 41 41,2
1 30 49,695
- 2 29 45,9
Der neue yon Fwguson enttleckte Planet.
1854 Octbr. 1
9 2 1 18,s
22 57 26,7
- 2 31 46,5
10
Der Planet erscliien 12. Griisse uiid folgte zur Mittel-Zeit tler Beoliaclituiig 3 Zeitsecunden auf eineni Sterne 10- Griiese,
welcher i f ' iiordlieh voni Planeten war.
Hamburg 1854, October 6.
C. Kiirnker-.
--
Ausziig nus einein Sclireihen des Hcrrii J. R. Hind a n Herru Protessor Hmsen.
Mr. Bishop's Obscrvntory, Regent'a l'iirk,
T h e following observations of the comet discovered 011 the
i 1th inst. have Iwen taken at this observatory:
Greenw. M. T.
& x.
& d.
1854 Sept. 20
21
24
Y z T -iZz?,''
7 50 25
12 42 44
153 19 38
159 44 56
4-66 41 7
+62 46 52
The brightest part appeared to me to follow the centre
of the whole nebulosity, but the absence of a well-marked
nucleus rendered the observations somewhat dillicult and
uncertain in an illuminated Geld.
London 1854, Seytbr. 27.
Prom the Rcrliii ohservatioii of Sept. 12 arid the above
on the 20th and 24th I have calculated the siihjoinetl ap
proxiination to the orbit of this comet.
Per. Passage 1854 October 27,5148 Grecnm. M.T.
1
94'43' 2" Ap Equinox
,Q
324 38 12
20.
i
40 58 31
log. q 9,90142.
Direct.
)
= r.[9,96623].sit,(u
= r.[9,78652].siti(u+
+191" 53'8)
69 51,3)
z = r.[9,91323].si,r ( v +114 51,4)
5
y
Nr.
133
The elenients bear m i n e resemblance to those of Mr. d'-4rrest's comet , discovered in December 1814.
Dr. Goul&s announcement of Mr. Ferpson's discovery
of a new planet close to Egeria on the l R tof the present
month will n o doubt have reached you. I t will b e a s o i i r ~ e
of great satisfaction to Astronomers, arid particulary to those
i v h o have interestetl theniselves more especially about t h e
minor planets. that the first American planetary discovery
should liave been made b y the able ohserver, who has laboured SO diligently to render service in this departnient of
A4stronony, Iiy following these bodies into the strong western
twilight, at the cost I am sure, of great trouhle and patience,
antl thereby enabling the calculator to provide better epherriericles for the ensuing opposition than could otherwise have
been prepared.
Another curious instance of the close approach of two
minor planets occurred on the lthof March 1854, a t l g h
in. t. Irene IYBS in conjunction with Euterpe and south of
her only 0'6.
There is a telescopic variable s t a r i n AIL 2 I h 13'"44',
1850. On 1852 November 3, I s a w it
of the t e n t h magnitude, while on the ?IRc
of the present
month there was not t h e slightest appearance of it, though the
night was very clear. I find it in the Markree catalogue a s
an HIh magnitude on 1850 August 5, the magnitudes adopted
in this catalogue are higher than in Bcsscrs scale, which I
have encleavoured to follow, s o that the brightness of the
star wonltl probably b e 9 or a little under, in Bessets estimation. We may therefore s e t this star cloivn as variable
from 9 to invisibility.
321.
134
The motion of Neptune's satellite appears to b e r e t r og r a d e . I have deduced t h e following elements froni 11r.
Lassell's Malta observations in 1852, already publishetl in
the ,,Astronomische Nachrichten". Further measures however
are required for a trustworthy detcrniination of the amount
of excentricity and position of the perihelion, 52 ant1 i muft
b e pretty near the truth.
Epoch 1852 Noveniber 0,O M.T. a t Greenwich.
Rfean Anomaly 243" 32'
I have good reason to suspect varialiility ( g t h - - i 1'11) i n
AR. 20'133"0', N.P.D. 109'34'9 for 1850, the preceding one of two alnioat on the same parallel. 1 hat1 noted
1 50
s1
175 40
i
151
0
0,1060
5" 8769
c:
T
The m a s s resulting froni the e ti s e ni I) 1 e of M r. Lasselrs
observations will not differ iiiuch from
but I have not
had leisure to work it out exactly.
Froin the ilfalta observations of t h e two brigliter satellites
of Uranus I have obtained the following numbers, for Xoveniber 10, 1852.
K . l ' . h 105"17'6 for
a star
*-a
I. B y m e a s u r e s o f O b e r o n .
B = 41'13
6 = 33"6
165'28'
i = 100°34'
8 ..... P i T K r n .
Mass of
1
2. By m e a s u r e s o f T i t a n i a .
a
33'l2
I
25/12
,Q=
165'25'
i
IOO"31'
=
Mass of
=
=
&
.....
; I f i b1i T 3 '
Whence a s a niean result the mass may b c taketi
1=
zii3in-
We have lately coinpleted Ecliptical charts for Hours 5,
8, 14, 19 and 20; the latter two are in the engravers hands.
both of the i l l h or 10. i l c hmagnitude, till A u g i s t 241'1 1854,
when ri was a 9Ih antl b a 10.1 1'".
J. H. Bind.
Fortsrtzung dcr Bcobachtungcn des Corneten 111. 1851 uud BeoLachtniigen des Cometen IV. 1851,
von Herrn Professor Reslhuber.
--
M. Zt. Kremem.
Juli 16
17
22
23
24
1Oh4Om8'46
10 58 19,91
9 39 48,18
10 15 39,47
10 1 1 3,92
OL.
Cf
iQtL
4"43'16
8 12,73
22 18,R2
24 41,21
10 26 57,69
K o m e t 111. 1 8 5 1 .
\-..,-
8.
tY
+38'12' 17"Z
37 37 35,O
32 18 5,6
3 1 53 10,4
I 28,3
+31
- -- -
M. Zt. Kreii~sm.
Juli 25
26
29
30
9L46m50'49
9 36 40,59
9 37 27,Ol
9 43 31,Ol
OL.
&
10h29" 2'13
3 1 2,33
36 31,37
,
10 38 14,21
9*
*. &
+30"11'
29 22
27 3
+26 19
38%
10,8
11,3
27,5