CCD photometry with medium size setup
Photometry does not require a large telescope or a perfect sky – especially if you do the photometry with a CCD camera. Medium size refractor…
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…
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,…
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…
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…
LowSpec amateur spectroscope
Check spectra obtained with LowSpec here Check other entries related to spectroscopy here I have been looking for different aspects of astronomy…
Messier 1 Crab nebula expansion
Messier 1 nebula, also known as Crab, is a supernova remnant in the constellation of Taurus. It corresponds to a bright supernova recorded by…