Sunday, 7 April 2024

Calcium Sunshine 6th April

Finally a bit of time, and despite storm Kathleen bringing gales and skies filled with Saharan dust an opportunity to observe. Trying out the custom Cak filter here, an Alluxa 0.14nm double stacked with a CaK PST filter, seems to offer an improvement in terms of a narrower bandpass with more contrast. Hopefully better conditions soon will allow further testing. CaK FD 40mm f15 zwo183mm undesignated spot CaK 66mm f15 2x cemax zwo290mm ar13630 CaK 66mm f15 2x cemax zwo290mm ar13629 CaK 66mm f15 2x cemax zwo290mm AR13628 CaK 66mm f15 2x cemax zwo290mm

Sun 23rd March

CaK FD 40mm f15 zwo183mm CaK FD Proms 40mm f15 zwo183mm

Sun 17th March

CaK FD 40mm f15 zwo183mm AR13614 CaK 66mm f15 2x cemax zwo290mm

Sun 16th March

CaK FD 40mm f15 zwo183mm Emerging Active Jet 80mm f15 2x cemax zwo290mm random plage CaK 80mm f15 2x cemax zwo290mm ar13611 CaK 80mm f15 2x cemax zwo290mm

Saturday, 16 March 2024

Sun 9th March

A new filter tilter now allows further fine tuning of the CaK system... 2024-03-09_03-25-15 CaK FD 40mm f15 zwo183mm ar13604 CaK 66mm f15 2x cemax zwo290mm ar13599 CaK 66mm f15 2x cemax zwo290mm Just need some decent spells of sunshine to be able to experiment with this a bit more, the setup has promise!

Sun 3rd March

Ha FD DS50 2x cemax zwo183mm G Band FD60mm f10 zwo183mm CaK Proms 40mm f15 zwo183mm CaK FD 40mm f15 zwo183mm ar13600 CaK 80mm f15 2x cemax zwo290mm ar13598 CaK 80mm f15 2x cemax zwo290mm ar13595 CaK 80mm f15 2x cemax zwo290mm

Saturday, 2 March 2024