Gravity Astro Blog
Technical guidance for astrophotography planning and gear choices.
Gravity Astro Blog explains observing conditions, filters, optical systems, and accessories for people starting or refining their astrophotography setup.
Latest Posts
Choosing filters for nebula imaging under urban skies
A practical guide to dual-band, narrowband, and UV/IR-cut filters for starting nebula imaging in light-polluted locations.
A night-before checklist for moon, twilight, and target altitude
A compact checklist for planning astrophotography sessions around moon position, astronomical twilight, target altitude, and field setup.
Why focal length matters when choosing a first telescope
For astrophotography, the first telescope should be chosen around target size, focal length, and tracking tolerance, not aperture alone.