Mosaic of all colours of Orion constellation's stars visible to the naked eye.

Orion the Hunter is probably the most beautiful constellation in the sky and its bright stars make it easily recognisable to anyone. It is famous for its Belt, for Rigel and even more so for Betelgeuse, the star on its shoulder that will 'soon' will explode into a supernova.

The constellation has been popular in all parts of the World since antiquity also because of the shades of its major stars. But this is how it would look if we could also see the colours of all the other stars that draw it.

In fact, about 80 stars are visible here, all those within magn. +5.5 and some fainter ones like the carbon star W Orionis.

Stars that can represent all the best known spectral classes, with 17 of which I have created - with real images - a beautiful colour scale that can reveal and synthesise the relationship between colour and spectral class of stars.

Mosaic of individual shots deliberately blurred to better capture their nuances and in scale according their apparent magnitude.

Dobson 18" - x285 - Smartphone A5 - ISO800 - 1/11s daylight mode

Gimp