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Binary star measurement. Using the time variations of the eclipses we are able to calculate the orbit of possible companion objects big enough to have an effect on the orbital period of the binary pair. The picture below is the plot of light magnitude from the binary pair. The timing of this minima is then corrected for our orbit round the sun and further corrections to give the precise time of the eclipse. many of these are measured to find orbital variation caused by third objects.  A star 465 Light years away from earth. Has a planet around it that was first confirmed in 2012. So I thought I would use my observatory to look at the transit of that planet. A very small dip in the light from the star.  Unfortunately I could not get the entry into eclipse due to cloud and this makes the plot a bit distorted. This is at the exit from transit at 22:00 UTC on the 25-4-2019. The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.  Just taken with R,G,B Filters a stack of 3 x 400sec images for each filter. Darks and Flats from the current library. Taken from Selsey with the RC Astrograph and Starlight Xpress H694 camera at -12c. This is an easy one as it is an A0 spectral type.  Type Ao with SA200 grating I just love this nebular. Star forming area of dust and gas. This is a better image than before Xmas. Techy bit: 3 x 100sec per RGB and 4 X 130sec L merged with 3X 60sec per RGB and 4 X 60sec Luminance. Taken with 8inch RC astrograph with a Trius H694 camera running ar -12C. Filter system is StarlightXpress Mount is AzEq6 pro.  Orion Nebular
Ok I have taken quite a good image of this tricky nebula.  RGB Image of Cacoon Nebula My image of M51 in colour came out really well:  M51 Colour Not bad image considering the gusty wind. Just 3 X 300sec per colour
Mag 13.051 V filter at 30 sec
Still quite visible and measurable even with full moon.
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