147

Haverhill. W. IF'. Roreham. No.of Store

---- -- 1852 M.T. Greenw. AR. of & N.P.D. of# Obe. ofCp. - Febr. 10- 23*148"30"155 82"25' 10H6 4 D

I 1 6 50 14 50 21,821 82 16 17,9 6 a 12 6 54 34 52 11,082 82 7 59,4 6 b 13 6 43 29 23 54 2,857 81 59 5 0 , l 5 6 18 7 27 38 0 3 37,546 81 I 9 27,O 3 c

7 28,327 81 5 46,9 3 c 20 7 2 55

22 6 57 43 I t 19,122 80 54 0,4 6 d 27 6 58 6 20 27,457 80 38 22,4 3 e

Nr. 801.

Assumed meaii places 1852,O of the s tars of comparison.

AR. N. P. D. -- a = B.A. C. 8315 23"48"' 3'816 82"35' f17~14 B = - 8353 23 54 49,502 81 52 1,20 c = Weisse,ResselO.?4r. 69 0 4 12,17 81 40 57,3 d = - - 0. ,, 151 0 9 8,926 80 31 41,9 c = -- 0. ,, 340 0 20 41,366 80 37 9,7 f = B.A.C. 137 0 26 30,lj-l 80 30 13,98 A* = - 177 0 33 33,?5 81 27 9,54 h = Riimker A.X. Nr.795 0 32 3,224 82 41 25,14

148

renthesis i n page 38 of the Astron. Nachrichten Nr.795, that Professor Secchi has fallen into some rnisappreheiisiori a s to the contents of my letter to him of the 31st. Dec. 1850.

That letter was written i n reply to one diitetl 26th Sov . 1850, and its Iwincipal object wils to coiiimiinicatr to Frofeasor rSccchi, thr best opiriion I could form a s to whethrr or not the shadow of the ball of Saturn thrnwn on the ring, pre- sented a convcx boundary towards the ball. 1 then described the recently seen dark shade a t the inner surface of the bright ring, as a much niore positive and striking phenonienori, and enclosed a sketch in pen and ink of its then aspect. But 1

O b s e r v a t i o n s o f E n c E e ' s Comet .

my first observation of the pherronienoii - still less (lid I state that 1 had not observed it ulitil alter the receipt of Professor Sccchi's letter, lntleed. in thca only obscwatioris of the (lark ring or shade which ( I believe) 1 pulrlished cluririg that ap-

I parition oF the planet, (see 3lonthly Notices of the I<oyal Ahtronomical Society of Lon(Ion, VOI. XI. page 21) I distinctly state that it was in the conli)iing of my friend 8Ir. Dame8 and with his telescope that I first noticeti the object.

I ? ? . Lassell.

Eutdccknug uiid B e o b a c h t u a g e e eines iieueii P l a n e t e n , voii Herrii Professor cle Gaspnris.

AR. Decl. No.d.Comy. 1852 T. m. Nap. J ' a i I'honneur cle vous annoncer Ie dCcnuverte d'une nouvelle plan&, darrs l a snirtie tlu 17 couriint. J'ai rirussi 2 la saisir I - Rlars 17 9h52"132Cj g I l j 7 ' " j g 7 + i 2 j 1 ' 2 0 " 2

---- en observant prhs de Regulus, avec lequcl j e I'ai comparbe. Elle Irrille de I'bclat d'urie petite Btoile de 1 o . i i grandeur.

En voici les positions apparentes

19 8 20 18,9 9 56 54,2 + I 2 58 19 7 20 9 25 27,1 9 56 21,2 +13 I 4 1 2 21 7 48 48,O 9 55 51,3 +13 4 56 I 22 7 58 37,3 9 55 2 5 , I + I 3 8 16 6

Le vent trhs fort qui souffle ici a enipOch6 un plus grand nombre de comparaisons.

Amibal cle Gnspnris. Naples, 22 Mars 1852. -

Altooa 1852. April 16.