Brayebrookobservatory.org
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- Title
- Brayebrook Observatory
- Meta Description
- Brayebrook Observatory, its history, telescopes and double star programme.
- Meta Keywords
- Chris Lord, Brayebrook Observatory, amateur astronomy, amateur telescope making, ATM calculations double stars, Dawes limit, the Lord nomogram, Newtonian reflectors, George Calver, German equatorials, astronomical observatories, bifilar micrometers, double image micrometers, Lyot micrometers, divided lens micrometers, Meca-Precis, Cooke Troughton & Simms, eyepieces, polar alignment, photography, Exakta Varex SLR, Exposure Calculators, light meters, Weston light meters, astrophotography, astrophotography exposure time calculators, history of photography, cmos & ccd sensor noise, cmos vs ccd, H-alpha solar observing, H-alpha solar filters, digital astrophotgraphy, eyepiece articles, Sony alpha DSLR, Sony alpha accessories