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Last time Martin Crow Crayford Manor House Astronomical Society About the use of binoculars. Types of mount. Telescope types. Finders, eye pieces, etc

Dec 22, 2015

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  • Last time Martin Crow Crayford Manor House Astronomical Society About the use of binoculars. Types of mount. Telescope types. Finders, eye pieces, etc. Setting up and using visually.
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  • This week: Observing Martin Crow Crayford Manor House Astronomical Society About observation Types of observation
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  • Martin Crow Crayford Manor House Astronomical Society So what are going to be seeing when we observe?
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  • Our Solar System Martin Crow Crayford Manor House Astronomical Society
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  • Our Solar System Martin Crow Crayford Manor House Astronomical Society
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  • Mercury Venus Mars Saturn Aldebaran Jupiter Martin Crow 2002 April 24
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  • Martin Crow Crayford Manor House Astronomical Society 2010 April 04
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  • Our Solar System Martin Crow Crayford Manor House Astronomical Society
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  • Mars 2003 Aug 23
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Jupiter 2011 Nov 19 DMK 41as02, 2.5x powermate on C9.25 Processed in Avistax Martin Crow
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Our Solar System Martin Crow Crayford Manor House Astronomical Society
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  • The Magnitude system The scale of measuring brightness is believed to have originated with Hipparchus (190 BC 120 BC). It divide up the visible stars into 6 brightness's, 1 for the brightest and 6 for the faintest. In 1856 Norman Pogson formalised this by defining a 1 st magnitude star as 100 times brighter than a 6 th magnitude star. Therefore the difference between magnitudes is the 5 th root of 100 = 2.51. So: 1 st to 2 nd magnitude has difference of 2.51 1 st to 3 rd =2.51 x 2.51 = 6.3 1 st to 4 th = 2.51 x 2.51 x 2.51 = 15.8 1 st to 5 th =2.51 x 2.51 x 2.51 x 2.51 = 39.7 1 st to 6 th = 2.51 x 2.51 x 2.51 x 2.51 x 2.51 = 100 The star Vega is set at zero magnitude. This is its apparent magnitude. On this scale Sirius is -1.4, the Moon -12.74 and the Sun -26.74
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Visual observing The eye is our primary means of exploring the world around us. Good for exploring the whole sky Doing meteor watches
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Visual observing The eye is our primary means of exploring the world around us. Good for exploring the whole sky Doing meteor watches
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  • Martin Crow Crayford Manor House Astronomical Society Nick James
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Visual observing The eye is our primary means of exploring the world around us. Good for exploring the whole sky Doing meteor watches Observing eclipses of the Sun an Moon
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Visual observing The eye is our primary means of exploring the world around us. Good for exploring the whole sky Doing meteor watches Observing eclipses of the Sun an Moon Observing atmospheric phenomena
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  • Martin Crow Crayford Manor House Astronomical Society Honor Wheeler
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Visually assisted observing Binoculars Good for exploring the sky more deeply Variable stars Solar observing not direct The Classical planets and some of the brighter asteroids Comets
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Telescopes Visually assisted observing Good for fainter objects Variable stars Solar observations not direct Luna observations Planetary observations Double stars
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Imaging Point and shoot and DSLR cameras on or off a tripod Good for wide field sky shots constellations, atmospheric phenomena, meteors and planetary conjunctions.
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Honor Wheeler
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  • Martin Crow Crayford Manor House Astronomical Society
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  • Mercury Venus Mars Saturn Aldebaran Jupiter Martin Crow 2002 April 24
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Imaging Moon images Point and shoot cameras set up afocally on a telescope Planets Maybe some of the brighter deep sky objects Solar images not direct
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  • Martin Crow Crayford Manor House Astronomical Society Exposures of 1/125 sec @ iso 100 will get you started, though experimentation will give the best results. Images of the eclipsed Moon require longer Exposure times.
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  • Exposures of between 1/30 to 1/5 sec at iso 100 are to be expected.
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  • Martin Crow Crayford Manor House Astronomical Society M42 Pleiades Both images were on a driven mount Exposures of 15 sec in both cases.
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Imaging DSLR on a driven equatorial mounted telescope Luna images Solar images Planets Comets
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Imaging DSLR on a polar aligned driven equatorial mounted telescope Deep sky objects Photometry of variable star and asteroids Faint comets
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Imaging Web cam on a driven equatorial mounted telescope High resolution image of the Moon and planets High resolution white light images of sunspots
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  • Web cam technology Martin Crow Crayford Manor House Astronomical Society Image of Jupiter taken using film (1990).
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging) What you need: A webcam with CCD sensor Adapter and infrared blocking filter A laptop and free software from the internet Registax or Avistack.
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging) How does it work?
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging)
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging) Registax in action hopefully!
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging)
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society With a telescope and webcam (Lucky dip imaging)
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  • Observing the Planets Martin Crow Crayford Manor House Astronomical Society Images by Simon Dawes With a telescope and webcam (Lucky dip imaging)
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  • Types of observing Martin Crow Crayford Manor House Astronomical Society Data mining Solar and Heliospheric Observatory Astrogrid Zooniverse
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  • Local and National societies Martin Crow Crayford Manor House Astronomical Society Crayford Manor House Astronomical Society www.cmhas.wikispaces.com
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  • Local
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