Nebula Filter H-Alpha 2-inch 7nm

Nebula Filter H-Alpha 2-inch 7nmIn addition to the turbulence in the air, the brightening of the night sky is the greatest obstacle to observing faint objects beyond the solar system. Street lights and other artificial lighting mean that the sky in human settlements is no longer properly black. As a result, the contrast and thus the perception of the deep sky objects also suffer. Depending on the type of celestial object, however, part of the interfering light can be filtered out,

The space is large enough to hold an Explore Scientific 102 Essential Series or FCD100 Series telescope (with the focuser removed) or the Essential Series 80 mm or FCD-100 80 mm (with the focuser installed)

178 seconds on a 60 mm

and comets

PXA phase coating and HR metallic coatings for enhanced clarity and color accuracy

Indoor temperature display range 5°C to +50°C (23°F to 122°F)

Hook and loop system connects tunnel to other Explore Hut structures

5" hexagonal Crayford-style focuser that ensures smooth

Argon also has superior inertness vs Nitrogen (i

Storage Supports up to 64GB

Recommended for our 127mm and 152mm refracting telescopes (excluding our doublet refractors)

Protect Your Gear from Wind

and the 2" 90° diagonal enhances comfort during extended viewing sessions