TY - JOUR AU - Roy Garstang BT - Journal of the Royal Astronomical Society of Canada DA - 04/1999 N1 - JILA Pub. 6247 PY - 1999 EP - 80 T2 - Journal of the Royal Astronomical Society of Canada TI - New Formula for Optimum Magnification and Telescopic Limiting Magnitude UR - http://adsabs.harvard.edu/full/1999JRASC..93...80G VL - 93 ER -