BAADER SLOAN/SDSS G' PHOTOMETRIC FILTER Size:2" and its loading capacity allows

and its loading capacity allows for mounting instruments like 200mm diameter refractors

These German-made and ISO/CE-certified glasses are perfect for watching the partial phase of solar eclipses or sunspot clusters

The 10 Micron GM1000 HPS Hercules package includes all the accessories needed to start using your mount

Two bolts for the connection to the adapter to the EQ6-R / AzEq6 tripod

It combines the strength and stableness of a pier with the levelling flexibility of a tripod

BAADER SLOAN/SDSS G' PHOTOMETRIC FILTER Size:2" and its loading capacity allowsThe Baader SLOAN g' filter is a precision grade photometric bandpass filter with a central wavelength window around 468. 6nm. In 2000, a new era in photometry began: with the Sloan Digital Sky Survey (SDSS), a 2. 5m telescope at Apache Point Observatory (New Mexico, USA) surveyed one third of the sky in five wavelengths, with windows around 355. 1, 468. 6, 616. 6, 748. 0 and 893. 2 nm. This system was also used for the Pan STARRS project; the broad