_ 
_ 
Name” 
— 
oo 
Nm” 
18) 
20 
Nm” 
à) 
FOOTNOTES. 
Extensive study Detroit II p. 1. 
See note Lick Vol. XIII p. 87. 
From AEO lines; rad. vel. derived from H-lines 
+480 L. B. O0. D. 
dee binary ? 
No definitive rad. vel.; extensive study Detroit II p. 36. 
According to L. O. B. 224, if rad. vel. is variable than 
it is with a minute variation. 
First mentioned as a suspected tk LO B 138 
from Y. and L. observations. 
Found out to be a visual double star, ú. N. 5o4l. 
If taken as a spec. bin. ScuursiNGeEr gives + 41.1 KM/sec. 
Lb B. 38; Sien vel. from H-lines + 35., from other 
lines —23. KM/se 
Very discordant he: 
The three computed velocities of the system are 
very discordant, viz. BrLoPousky— 14.8, Mereyers—0.8, 
Curris—21.0 KM/sec 
Ring-nebula in Lyra. 
L. and A. differ 10. KM. 
Worr-Ravyer star-nebela. 
Dumb-Bell nebula. Mount-Wilson gives —63. KM/sec. 
from one plate. 
No difinitive rad. vel.; extensive study by R. H. Curms 
Detroit IL p. 35. A ‘constant increase in the rad. vel. 
Detroit II p. 72, rad. vel. from bright H-lines +16. KM/sec. 
from other lines —42. KM/sec. 
L.O. B. 314 “It seems possible that Orionis is a 
spectroscopical binary but the determination of its orbit 
would be very difficult owing to the small range of the 
radial velocities, and would necessitate an enormous 
number of spectrograms.”’ 
L. 0. B. 316, according to Arrkens discussion of the 
available observations the rad. vel. is not variable and 
no disturbance in the visual orbit can be deducted from 
the available radial velocities. 
Publ. Dominion Obs. Ottawa I N°. 15. 
