Menkalinan beta Aurigae spectrum enlarged

Menkalinan - spectroscopic binary star

Menkalinan (beta Aurigae) is a spectroscopic eclipsing binary star system. The two components appear as single star to the visual observations, but…


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.…


Plaiedes - annotated image

Pleiades spectra

During last observing session I pointed telescope with attached spectroscope to well known Pleiades open cluster. It is also called "Seven Sisters"…


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,…


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Amateur measurements of radial velocity

Since you are here you probably are interested somehow in astronomy. And you probably already are aware of terms like Doppler effect or radial…


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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…


Night sky spectrum

In the previous post you may check what LowSpec spectroscope is, and how does it look. Since the conditions to real first light on stars are still…


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LowSpec amateur spectroscope

I have been looking for different aspects of astronomy since the time I started to consider astronomy as a hobby. Spectroscopy was also one of this…