Big Dipper cluster - Collinder 285 spectra

Collinder 285 - cluster core stars (image by Niclas Lundin on Unsplash) Big Dipper is a large asterism - a part of Ursa Major constellation.…


HD15558 - the most massive star in the Milky Way

Last session with LowSpec spectroscope was only a few hours long due to weather. But still it was enough to capture some spectra of Be type stars,…


40 Eridani cover

40 Eridani - first white dwarf ever

Star 40 Eridani is a triple system located not so far away - about 5 parsecs (that is about 16 light years). In cosmic scale it is just a…


Alnitak and Mintaka spectra

Alnitak and Mintaka are two bright stars located at the ends of Orion's Belt. Both belongs to rare spectral class O, that comprises the hottest and…