Salt Lake Telegram | 1934-04-11 | Page 6 | Aluminum Reflectors Aid Star Photography

ALUMINUM REFLECTORS I AID STAR PHOTOGRAPHY I PASADENA CaL Cat UP Opening Up tip new worlds astronomers at Lick Observatory have found that the use instead of silver in the mirror of an astronomical telescope Increases the Instruments Instrument's power possibly pos pos- sibly 50 to 60 per cent After photographing a star in the north polar region with a telescope whose mirror was coat coated with silver the astronomers sent the mirror to th the California Institute a of Technology ogy where the silver was removed and polished aluminum applied The star was r and a long extension o of the stars star's spectrum barely barely bare bare- ly visible in the former photograph could be seen plainly The effect will be to widen former S Astronomical ast horizons scientists nr are arc agreed S