10″ Aries f/15 Maksutov Cassegrain Review
10″ f/15 Aries Maksutov-Cassegrain Review.
The Bubble Nebula is an ionized hydrogen emission nebula 7,800 light years away, created by stellar winds from the Wolf-Rayet […]
Some preliminary tests of the new Takahashi Mewlon 210 Dall–Kirkham based astrograph, with ASI 1600 MM-C CMOS camera.