Re: (IAAC) Obj: NGC 40 - Inst: Celestron 8"
>It is a great idea to give the additional information so long as it is
>comprehensible but what do
>Ga Lo 120.02 Ga La 9.87
This refers to Galactic Longitude and Latitude, which is used for the
calculation of extinction and other knowable residuals,
>POSS X 150 POSS Y 160
refers to a coordinate system (I thought defunct) related to the Palomar
Observatory Sky Survey,
"Old" style descriptions, likely Dreyer code, I would guess,
Darn good question.
Jeff Medkeff | Acting Assistant Coordinator
Rockland Observatory | Association of Lunar and Planetary
Sierra Vista, Arizona | Observers, Solar Section
On the web at http://shutter.vet.ohio-state.edu/