BAADER BESSEL V PHOTOMETRIC FILTER Computerized Technical Parameter:

Technical Parameter:

The SkyWatcher Guidescope Mount offers accurate yet precise guide scope alignments to OTA

included the dual plates Lodual and Maxidual

This expedient allows to balance the exposure of each channel with the ratio of 1:1:1

5x extender focal ratio F/15

BAADER BESSEL V PHOTOMETRIC FILTER Computerized Technical Parameter:The Baader Bessel V filter is a precision grade photometric bandpass filter with a central wavelength window between 500 700nm. The UBVRI system was developed in the 1950s for the 0. 9m McDonald Observatory telescope and initially consisted of a Johnson UBV filter set, later extended by Cousins to include the R and I filters for the red region of the spectrum. The filters of the extended UBVRI system according to Johnson and Cousins include: U