B. V. Marsh on the Distinguishing Features of Comets. 93 
est measure of the effects to be onticipeiedstts from excentricity of orbit. 
in veriletion ay abel on 
Ratio of Light) Ratio of 
Excen- |Perihel’n eal seat rc time pent 
tricity. |distance pitas Hon ri-| part of or- Remarks. 
rdlstaiee. aren todeinelet to same 
n aphelion. jin perihel’n 
, = (= 1000682] 0-7184 1-02 1-01 1-02 
Neptune, - - |0-00872/29°7744 1-02 1:04 1-02 
g|Earth, - - 78} 0-983 1-09 1-20 1-04 
3|Uranus, - - |0-04660|18-2885| 110 121 re 
Jupiter, - - |0-:04829] 4-9519 110 121 11 
Sat -  - (005603) 9:0044 Lig 1-25 12 
Mars, - ~- |009325| 1:3816 1°21 1-45 13 
Mercury, - - [0-20562| 03075] © 1*s2 2°30 17 
armonia —~ least : A 
Pepa gigs | 004608] 2°1627 1-10 1-20 li 
ean of grou to ‘ “ 
Pa 55 fhiclusire ‘ 0°16480) ...... ey one wig 
olyhymnia-most > = : is 
excentric of group, § |722699| 1:9009 oS gia 4 Period. 
;|Faye’s Comet sient 1°7000 3°5 12} & | Ttyears. Te’ ic. 
3 De Vico’s * '- |0-61765| 1-1864 4°2 17 fr hs Ges do. 
Biela’s eee wih a 0-8564. 72 52 13} 64 se do, 
Brorsen’s “ - |9-79446| 0:6500 87 75 17) 54 ‘ oy 
Encke’s “ . |o-84767| 03974, 12 147 28 ~ . 
ee “ 
‘gOlbers's “ 1815/0-93199| 12129] 28 790 92 
i a nspic- 
3) 
igre, IV,1846/0-96295! 0°6637 52 2735 227) 78} “ Just ih, to 
S 
i> 2 “ — 
ii nalley's 096739) 0°5866 60 8636 283} 764 eee “Seen 
3 Broreen’s “'V,1847/0-97256| 0°4879 72 5169 367| 75° * 
9 
.21Co , 33/3065 “ Fine. 
cs hk : 115 13133 
Ba ede ieiehetal asad ote 29381| 1886) 401 « Pretty conspic’s| 
tg} “ -1825— IVJo-99537/ 1-2408} 488 188165} 5271/4386 ge oa 
. 18s A splendid ob; 
igs} “ 18— Ljoges4i} 10854) 4 188625) 7182) 875° A. sp 
7 Eat sed 
- bs 8] a id co- 
33] “ 1858— VJo-99679] 05785, 624 389376) 8925/2000 “pl of Donati 
Hi] «169, 099995) 0°1227 7087048 osaos000 «Tl long. 
" 1843— 10. 99989! 0:0056 18673 34868615 ip nen 
i | _near the sun. 
og 800 “ Object of univer- 
3) 1680. 1099999] 0:0062) 137173) pi attention—| 
gE] ’ tail 70° to 90° 
long. 
ee ee emer 
