Tag: Astronomy Filter

AstroUnga Offers Worldwide Availability of New Antlia LRGB and Narrowband Astronomy Filters
News

AstroUnga Offers Worldwide Availability of New Antlia LRGB and Narrowband Astronomy Filters

AstroUnga is a new Australian based astronomy retailer specializing in astroimaging products. The small shop is run by two former research scientists with backgrounds in electrical engineering and biotechnology who are passionate about astronomy and astrophotography. AstroUnga has recently announced they are the first astronomy retailer to carry the new […]

New Artesky 2” ZWO ASI Camera Filter Holder for RASA 8″ Celestron Telescopes
News Uncategorized

New Artesky 2” ZWO ASI Camera Filter Holder for RASA 8″ Celestron Telescopes

Artesky has introduced a new filter holder which allows owners of Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA) to capture astroimages using any 2″ filter with ZWO ASI cameras. With the Artesky filter holder you can internally connect a 2-inch filter by screwing it to the existing thread. Then using the original […]

Figure 1 – Spectrum of a Sun like star
Reviews

The SkyTools 4 Imaging Model

By Greg Crinklaw Major professional observatories, such as ESO, use mathematical models of their telescope and instruments to plan their observations. It is useful to know the image scale, what exposure times to use, whether a star will bloom or if the signal will become nonlinear, and how many exposures […]