CIKM
Microfiche
Series
(Monographs)
ICMH
Collection de
microfiches
(monographies)
Canadian Institute for Historical Microreproductions / Institut canadien de i rorep. eductions historiques
AAA
Technical and Biblio^-aphic Notes / .'moios techniques et bibliographiques
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D
D
a
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D
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lOx
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30x
1
1
1
12x
16x
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24x
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32x
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1
2
3
1
2
3
4
5
6
MICROCOPY RESOLUTION TEST CHART
ANSI .mo ISO 'EST ^hi«: No i
1.0
I.I
ilM
[1 2.2
[ 2.0
1.8
1.25
1-4 i 1.6
^ APPLIED IKA/1DE he
r.\*>'
-•<'^
ITIiLICATIONS
Hi lili:
DOMINlOiN OBSERX'ATORY
Ol r.WVA, CANADA
OHIUT OK '1-iij'; si'i;cri{()S((»iM(' hixaijv a dkacoxis
I!i W. i:. II.Mil'Kli, .M A.
r ^^
'Ihis star (rt !(■>'' .')(>'", 5= +(;,". h/, plKitoKiapliic iiiiii;iiitii(lc ,")•.'{, tyi)0 Vr>} was
aiiiHiuiiccd as a spcctniM'opic liinaiy l)y Caiiiphcll in A.slnij,hi/.'<;ral .hmninl. \. jjagc 17S.
His fuiir (ihscrvations, ^wm in the talilc of incasuros, slum a range of lid km. The star
was pla(T(i (,n our (.hscrvinM; iiroKranmic eleven years ap), hut it was not followed up
until tills year wh(-n 2,") s])eetroKraiiis were ohtainod with the single-jirisni spcetrofiraph.
This is somewhat fewer than the iiuiiiher of observations generally used in determining
an orbit, hut the lines are very good for measurement and none of the plates show large
residuals from the final eiirvo, the prohahh' error of a plate heing +l-,3 km. i>er .serond.
Ahout 1.") or 20 lines were measured on the i)lates. Their wave-lengths are given
in the following table, whieh shows also how many times they were measured and their
residuals, taken in the sense, mean velocity of jjlati minus line-velocity.
I.INi;s 1\ /( DltACOXlS
Times
1{,-S
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Tirnps
H.-.-
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X
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4572- 10(i
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4271 7.55
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7-3
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4260-601
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16
4-9
+ 0-4
4.531-410
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(1
-0-4
42.50 ■ 593
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9
5-0
-0-4
4.-)01-.-.l7
Ti
3
3 3
-0 2
4236-121
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12
li-6
+ 4-1
(1
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M'J
4
11 (i
-2-3
4233-475
Mn-Fe
15
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44,TO 072
(•<i-Zr-M„
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4227-0.55
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14
4 ■ 5
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21
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4215-727
Fe-Sr
3-S
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4404 ■897
fe
24
0-4
+0-2
4202-308
Fe
3-7
+0 3
4395-446
Ti-V
6
3-5
-0-9
4198-702
Fe
10
6 2
-2-8
4383-690
Fe
5
3-6
+ 1-2
4143-897
Fe
19
6-3
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4352-048
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12
8-9
+0-2
4101-890
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5
13-0
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4340 634
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•fO-o
4071-929
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15
2 7
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4325 799
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20
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4063-770
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17
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4308 044
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4045-966
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17
7-1
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!89-904
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3
1-8
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4005-3.56
Fe
3
3-1
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!82-793
Fe
2
3-6
+ 0-S
t)«<>W— 1
MT 403
P04-16
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;CUIf POIYrFCHNiU'JE BIBIIOTHFOUE
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oiinri <ii nil >i'h:( Tit'is* (p|'i( hi\\h\ /. iiii\(<.ms
2V.t
9
Our own ohscrviiti.pii- wlini |i|.iiir<l khv.- ,i |..ti>>«1 arnuiirl .Vi.lav^ ii tl,.. c,
iiiiiiiImt of cyrlo liii-* l)c<'ii liikcn to rnmiccl up Ih,- l.ick nli-. r \ if kuw with nur .iwn. rli.
pcrifxl ilclcriJiiniMl, ,-)! 710 ilav-, -liquid \,i> ruint I at Ifii.-I to tin- sccon.i Jfciinai |.lnc.'
With this pcrHxl, the Ottawii uIimtv atious were uinupod nrrordiiit? l.i pliii>r jntu II
normal placo and i{ra(thical clcnicnl- (Iflcriniiicil a- follows:
/ > -.1 - I < 1 . 1 . . .
A
.'.I 710 .lays
IS j:, km.
■-'■_' (ij km.
.1. 1). J.ni.si;! <i:{
NOKM \i, ri \ci>
riiiiii
Kiiml
M..,,„
.M.-.,h
\Si>kI>>
1 »mI
Miiiii
Mi'iiii
W tiKht
lu.al
I'hHw
Vi'lofll)
()-C
Phaw
Vrlocity
I -"»
<> ('
1
10 MM
-27- 17
J 11
i 1 .(J
_
HI M
!l 70
1 l:i
»>
•.•:> (M
:u 70
1 :.
+ .v.»
H
:t 01
1 71
t '.IS
.1
a 14.-.
40 1<»
2 :.
- 1 02 1'
It
OH-I
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t II ll.'i
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:; ■ .'i
.Vl
11
10 oil
-2:i .-.2
II rii
tl
44 32
-21 95
3-3
+0 12 Ii
1
1
I'siiiK the (lifTcrcntia! formula of I.chmann-Kilhes, ohscrvation <-(iuations woro built
up connecting the residuals with the elements whose values were to ho imiiroved upon,
munely, 7, A.', r, w and T. In the e(|uations, wei(?hte(i as al.ove, suhstitutions were miide
as follows:
X = 67
.'/ - «A'
2 = K &e
II = K Su)
r --■- |0;{ti()t)<»| 67'
onSKUVATION IXilATIONS KOK A DRACOMH
s
<»
10
u.
1 000
1 000
1 (MM)
1 000
I (KK)
1 (KKI
I 0<H1
I (100
I 000
1 000
I 000
-0-321
-0 ti.s7
-0 S70
-0 ti;{0
-o:fs.->
-0 (MHl
+ 777
+ 1 02X
+ 0(l',K)
+ .-.-)<)
-0 o:(o
-0 071
+0 707
+ 0-.S!¥1
-Oli.V.
-0 hh:.
-1 0»i4
^-o:!o:)
+0 92!
-0 07K
-0 !Hi7
-0 fi2.->
-0-
-0
+
+ 0-
+0-
+ 1
+0-
+0-
-0.
-0-
-0
SIS
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(Mil
724
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(XM.
,S.'i.S
1H4
43:)
KiO
912
.*
+o»)S;t
-1 .-.7=0
-t-O 417
-040
+0 020
+ 1 r.o
-0 .Wti
-1 44
-0 S.'i2
-017
- 1 107
-0-7S
im:!
fl-2(i
-0 07ti
-O-.-iO
+0-.5SS
+ 10.-.
+0-SH2
-012
+OSOK
4-0 ■.^.-.
150
PUBUCATIOXS OF THE DOMINION OHSKKVATORV
NDKMAI. eWiaTIONS
:{()r)(t.r + isL>v - ■:,-,- z + m\)h - ■•>mv - 304 =
\-M\Xii + •l.-)5^ - ■;«2« + •a.'iLV +o31 =
ItJoSz - ■;«()(/ + ^Tli' +-7<.>5 =
\(\.V.\it -l-)87r --.ItW =
1 • .")()<•/■ + ofW =
iniiii tlicsc ilicrc resulted small eorrections td the elements with a eorrespondinj;
icduction of "^prv f(i- the normal places from 2()() to 'll 1. Th<- final elements are:
I )ominion Observatory
Ottawa
Oetober, litis.
I' = ol- 710 days
r = 128 ± 03,-)
w = 32!)' -32 ± 14° (lit
A' = 17!H) km. ± 70 km.
7 = -22r)<,)km. ± •47 km.
T = J. I). 2,414,813 7.-> ±immda.vs
n sin / = 12,()2,-),0()0 km.
{HI + Wi)'-'
■03 O
OUIUT or Tin; SI'KCTKOSCOIMC hlNAllV A DKACOMS
251
km
1
1
J
!
o
s.
g
i
N
1
/
■ ■ 7' '
1
1
\
t
16
1 \
1 \
1 \
/
?4
i 1 \
1 ' J
,
1
/ t ■■
j
■ i
\) i
;
/ : i
^'>
|\
,
1
1
^
/ i
s
\
i
/
t
^
:
; 1
— i
~^ 1 ^
L . 1
1
1
Days
20 30 40
K;i4|i:il Vi'lopily Ciitvi' of h Dnimnis