ZWO FIVE POSITION ELECTRONIC FILTER WHEEL - 1.25" AND 31MM - Astromanie
Filter Wheel 8x 1.25"/31mm - ZWO
Astronomia de carrer - Viquipèdia, l'enciclopèdia lliure
ESO Astronomy - Series of short exposures through a near-infrared filtre was obtained of the waning Moon at sunrise on 12 January 1999 (at about 10 hrs UT), i.e. about 5 days
2020.11.29 – Sol | Blog d'Astronomia – Josep Masalles Román