THE Director of an Observatory, who, with a thirty-six-inch refractor
, had discovered the moon, hastened to an Editor, with a four-column account of the event.
This image of the Super Snow Moon was taken from the Pagasa Observatory in UP Diliman on Tuesday (February 19) night using a DSLR camera mounted on a 120mm refractor
telescope, with the BusinessMirror photographer getting assistance from Pagasa astronomer Lordnico Mendoza.
"Contributing Editor Bill Sheehan replies: In 1830, while making the observations that led to the first map of Mars, German astronomers Wilhelm Beer and Johann Heinrich von Madler used the 3.75-inch Fraunhofer refractor
in Beer's private observatory in the Berlin Tiergarten.
The five-year-old, rated 4lb lower than last year, has switched from Denis Hogan to Matthew Smith, with his former trainer now saddling Refractor
To start choosing, ask yourself, "What am I most interested in observing?" If it's the Moon and planets, think "refractor
." These usually have smaller apertures than most reflectors and CATs, topping out at about 6 inches (150 mm), in part because they're the most expensive type per inch of aperture.
At the observatory we were set up with a 100mm refractor
with a solar filter, a 150mm Newtonian reflector and a small Coronado PST solar telescope.
The fitting takes a 26 watt TCT-lamp with symmetrical light distribution created by efficient MTR refractor
Hale, who had invented the spectroheliograph (see 1890) and supervised the construction of the 40-inch refractor
(see 1897), changed that.
On April 18, 1982, they aimed Meudon Observatory's 102-centimeter refractor
at a star (AGK3 + 17[deg.]1309) whose location was close to where 146 Lucina was due to pass in its orbit.
Through my 130-mm refractor
at 37x, M2 is a bright little guy with a faint halo reaching 4.4' northeast to a 9.9-magnitude star.