[49Ttranfibat inter ftellas A 8& I, quintuplo vel fextuplo propior exi-{tens ftelle H quäm ftelle L En

Die ni, Mart. 5. hor. 114. P.M. Cometa exiftente in T; rectaMT zqualis erat; ML,& recta L T producta tranfibat inter B&

F, quadruplo vel quintuplo propior F quäm ß, auferens 4 BF

uintam vel fextam ejus partem verfus F,. Et MT producta tran-

| ia extra fpatium BF ad partes ftelle B, quadruplo propior exi-

fkens fell B quam ftelle FF, Erat M ftella perexigua que per Te-

lefcopium videri vix potuit,& L ftella major quafi magnitudinis.octave.:

Ex hujuftnodi obfervationibus per conftructiones figurarum&computationes( pofito quod ftellarum A4& B diftantia eflet 2 gr.6%,& Melle A longitudo 5 26 gr. 41. 48& latirudo borealis

"12 gr. 8%, ftelleque B longitudo y 28 gr. 40. 16°.& latitudoborealis ı ı gr. 17%; quemadmodum ä Flamftedio obfervatas accepi)._derivabam longitudines& latitudines Cometze. Micrometro pa-rum affabre conftrudä ufus fum, fed Longitudinum tamen& Lati-tudinum errores( quatenus ab obfervationıbus noftris oriantur) di-midium minuti unius primi vix fuperant, preterquam in obferva-tione ültimä Maert. 9. ubi.pofitiones fixarum ad ftellas 4.& B mi-nus accurate determinate potul. Cafinus qui Cometam eodem tem--pore obfervavit, fe declinationem ejus tanquam invarlatam manen-tem parum diligenter definivifle faflus eft. Nam Cometa(juxta.obfervationes noftras) in fine motus fu notabiliter deflectere ceepit.boream verfus, A parallelo quem in fine Menfis Februarit tenuerat. m

Jam ad orbem Cometz determinandum; felegi ex obfervatio--nibus hactenus deferiptis tres, quas Flam/tedins habuit Dec. 21, Jan. 5..& Jan. 25. Ex his inveni St partium 9842,1& Vt partium 455.quales 10000{unt femidiameter orbis magni, Tum ad’operatio®nem-primam aflumendo t B partium. 5657, inveni SB 9747, BE

vima vice 412, Sp 9503, 1A— 413: BE Keunda vice 42.1,0D 10186, X 3528,44, MP 8450, MN 8475, NP— 25.Unde ad operationem fecundam collegi diftantiam. tb 5640... ErAP

x