My Astrophotography

Some of these astronomy photos I took during the 1990s. I shot these photos with not so advanced equipment and during a hard light polluted city sky.

I have now been taken up my astronomy hobby again and is now building a new modern astronomy photography equipment. But even these new photos I mostly shot from my home, a very high light polluted area, Bortle class 9, at the summer house Bortle class 4 and at La Palma I visited 25 years ago Bortle class 2. Note, I don't have any special camera, only a standard DSLR camera, a Nikon D800.

More to read about astrophotography at Wikipedia:

• https://en.wikipedia.org/ wiki/ Astrophotography (Astrophotography, Wikipedia)
• https://en.wikipedia.org/ wiki/ Bortle_scale (Bortle Scale, Wikipedia)
• https://clearoutside.com/ (Clear Outside, weather app)

DSO, Deep Sky Objects catalogues:

Many of the deep sky objects has a number that refer to some catalogue. The most famous one is the Messier catalogue. It was the French astronomer Charles Messier that set up this catalogue. The first version was published 1774 and contained 45 objects, later extended to 110 objects by him and others. Charles Messier was most interested in comets and had to catalogue all these non comet objects in order to not make mistakes.

A later catalog was NGC, New General Catalogue. It was published in 1888 by John Luis Emil Dreyer. It included 7840 objects inclusive these older Messier catalogue objects.

In 1895 and 1908 two new catalogues was published, complement to NGC catalogue and contain 5386 more objects. They were called IC, Index Catalogue.

Sorted by chronological order:
Astrophotography database Here you also find statistics, equipment and changes during the years.

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