Binoculars for Astronomy
The best binoculars for astronomy for most people is a quality 10×50 — it gathers enough light to show the…
Binoculars for Astronomy
For most beginners, a pair of astronomy binoculars is the smartest first instrument in the hobby — a good 10×50…
Astrophotography
An all-night astrophotography session draws roughly 200 watt-hours from a 12-volt battery — 25 watts for a dew-heater strip running…
Astrophotography
A star tracker moves your camera at the same rate the Earth rotates — 15 degrees per hour at the…
Stargazing
Amateur astronomers can observe comets in any telescope with a 60 mm aperture or larger — the key is knowing…
Stargazing
The Moon’s shadow sweeps across Earth’s surface at up to 5,400 km/h, and for a path roughly 270 km wide…
Stargazing
Earth crosses the dust trail of a comet or asteroid, and for one or two nights of the year the…
Stargazing
At opposition, an outer planet rises as the Sun sets, transits at midnight, and reaches its closest, brightest, biggest view…
Stargazing
Jupiter through a telescope reveals two dark equatorial belts, up to four Galilean moons, and occasionally the Great Red Spot…
Stargazing
Saturn’s rings become visible in any telescope with 25x magnification or higher, but resolving the Cassini Division — the 4,595…