— 18 — 
Elementi pel calcolo. 
Stelle ed epoche 
AR media 
Dist.p. nord med. 
Sirio 1755 
Sirio 1856 
/3 Orione 1755 
[3 Orione 1 856 
Q Can.mag.1755 
9 Can.mag.1856 
6^34"». 22.^ 046 
6. 38. 48. 239 
5. 2. 46. 491 
5. 7. 37. no 
6. 42. 48. 500 
6. 47. 30. 163 
106.° 23'. 53".80 
106. 31. 20. 07 
98. 30. 16. 20 
98. 22. 17. 61 
101. 45. 2. 20 
101. 51. 40. 40 
Bradi, an. dell’os. di Parigi 
Caland. osserv. diretta 
Bradi, an. dell’os. di Parigi 
Green. 1 845an.deH’os. dedot. 
Bessel. Fundam. astronom. 
Calan. os. del 1857 dedotta 
Stelle 
Precessioni 
media 
in AR 
per l’epoca 
1805.5 
in S 
Moti pr 
in AR 
. annui 
in S 
Sirio 
^ Orione 
9 Can. mag. 
h-2^ 679831 
2. 877168 
2. 795787 
-4-3".! 87373 
—4. 750597 
-+-3. 925943 
-+-0^ 000244 
— 0. 007000 
-t-0".011889 
0. 022000 
Prima soluzione 
np. = Acc~np = 267^ . 193 — 270^663 == - 3^ 470 
np = A ^— np = 446 27 _ 341 . 92 = -h 124". 35 
Seconda soluzione 
A'-t-ndp=—1^31'”.34^ .555H-1.^31.-11^.129-t-19^956 =— 3^ .470 
nfx=A»— A'-4-nrfp=:-7“.53' .37". 60 h-8°. 9.' 2". 46—13'. 20''.53=h-124". 33 
Terza soluzione 
Wja--=A“— A'-H«rfp= 507^454 — 52P.924 -4- 11^005 == — 3^465 
nfL=rA“_A'-4-nrfp=:— 4°. 38'.51".60 h-4".39'.39".7h-1'.16".82=h-124".89. 
