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G2-8300

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The Rosette Nebula is a huge emission nebula in the Orion arm of the galaxy located in the constellation of Monoceros. It is about 5500 light years away and about 150 light years across and stars are being born from the hydrogen that comprises the nebula. The Rosette Nebula Image Technical Data Imaged with Takahashi FSQ85 at native focal length with my Moravian Instruments G2-8300 cooled CCD camera and Astrodon RGBHa filters. Data collected from my backyard observatory on 8th January 2018. Image data is as follows (Ha is 1×1 and RGB is 2×2) Ha > 14 x 1200s ; Red > 17 x 300s ; Green 12 x 300s ; Blue > 20 x 300s Ha (3nm) Image As can be seen above, the Ha image is extremely detailed and shows a huge amount of detail. This is 3.5 hours of exposures through the Astrodon 3nm Ha filter. RGB…

Simeis 147 (Sharpless Sh2-240) sometimes called The Spaghetti Nebula is a supernova remnant of a star that exploded forty thousand years ago.  It sits across the border of Taurus and Auriga and is a huge object, about six moon widths across.  It is located about 3000 light years away.  Because of its extremely low surface brightness it was only discovered as recently as 1952.  It is an exceptionally difficult object to observe visually and to have any hope of seeing it with your own eyes at the eyepiece requires extremely dark skies (Bortle 1), specialist filters, immaculate seeing and transparency and extreme dark adaption of your eyes.  This rules out almost anywhere near civilisation.  Personally speaking, I have never known any astronomer who has seen it visually.  Even with photography it requires very long exposure times to bring out any detail. Simeis 147 Image Technical Data This image was created…

The California Nebula – NGC 1499 – is a vast hydrogen gas emission nebula about 1000 light years away in the constellation of Perseus.  It is named as such because of its vague resemblance to the US state of California.It is an extremely faint, large and diffuse object, about four times the diameter of the moon.  It is almost completely invisible visually without specialist filters and was not discovered until the advent of astrophotography in 1884.  The nebula shines by reflecting the light of the bright star Markib.  It shines red because Hydrogen atoms, when excited by nearby bright sources like stars, emit or re-radiate light at the 656nm wavelength which is in the red part of the spectrum to our eyes. The California Nebula Image Technical Data The California Nebula is so large that most telescopes cannot get the nebula in the field of view, nowhere near in fact. …

M38 is the third of three Messier Open Clusters in the constellation of Auriga, in the Northern hemisphere of the sky. The other two Messier clusters are M36 and M37. All of them are easily visible with binoculars and are seen as faint smudges against the darker background. If you read my post on the Constellation of Auriga you will see all three of the Open Clusters in the same image M38 Open Cluster Image Technical Data Imaged from my back yard in Nottingham, UK on the 18th January 2020 whilst high overhead from my location. I used my TEC 140 refractor with Atik 460 cooled CCD camera and Astrodon RGB E Series Generation 2 filters. I used my MESU 200 mount guided with OAG. All exposures binned 1×1: Red > 12 x 180s ; Green > 14 x 180s ; Blue > 13 x 180s. This gives a total integration…

M37 is one of the three Messier Open Clusters in the Constellation of Auriga – the other two being M36 and M38.  It is about 4500 light years away and contains several red giant stars, visible in this image, making it the richest of the three Auriga Messier Open Clusters. M37 appears high overhead from my 53 degree norther location during the winter months making it an ideal target for visual observations and imaging.  It makes a fine site in a telescope and appears as a fuzzy ball in a pair of binoculars. M37 Image Technical Data Imaged from my backyard in Nottingham, UK on the 9th February 2018.  I used my Takahashi FSQ85 refractor and Moravian G2-8300 cooled CCD camera with Astrodon RGB filters.  All expsoures are binned 1×1.Red > 12 x 120s ; Green > 12 x 120s ; Blue > 12 x 120s M37 Annotated Version M37…