Milky Way

While I was mostly working with my telescope and full-spectrum camera doing “proper” astronomy¬†earlier in the week, I also left my other camera on a regular tripod pointing at the sky, trying to photography the Milky Way with a fisheye lens. This picture covers pretty much the whole sky, almost horizon to horizon. The Milky […]

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More deep space

I’m still suffering with triangular stars caused by pinched optics, but last night I decided to head out and enjoy some astronomy anyway. I’m still a relative beginner at astrophotogrpahy and there’s always something to learn even if the telescope is misbehaving. The weather was clear and very cold. Frost formed on the car and […]

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Pinched optics

I’ve been having an ongoing problem since buying my telescope a couple of months ago. Stars appear triangular, as you can see in this picture of Pleiades. I’ve done some research and it seems the most common cause of triangular stars is a defect called “pinched optics”. The primary mirror in is held in place […]

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Full spectrum camera conversion

This article is about exploring the world of light our eyes cannot see, using a modified digital SLR camera. I have a physics degree but I’m still finding my way with the practical applications of infrared and ultraviolet, so this article is mostly written from a theoretical point of view. Take everything I say with […]

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First light part 2

This morning I published a picture of the Andromeda galaxy, with some notes about my method a vow to improve my technique. I pondered the image processing and decided to have another go this afternoon. This is the same dataset, but different processing. It’s a colour image and unfortunately shows some light pollution, although I […]

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Andromeda Galaxy

Some time ago I got a new telescope – a Celestron 130EQ-MD Newtonian rather than a Celestron NexStar 127 SLT Cassegrain-Maksutov formula. In short, it is more sensitive to light but sacrifices magnification. It’s perfect for deep-space observation like nebulae and galaxies, while the Maksutov is better for observing planets which are much brighter and […]

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