- Messier 52 or M52, also known as NGC 7654 or the Scorpion Cluster, is an open cluster of stars in the highly northern constellation of Cassiopeia. It was discovered by Charles Messier in 1774. It can be seen from Earth under a good night sky with binoculars. The brightness of the cluster is influenced by extinction, which is stronger in the southern half. Its metallicity is somewhat below that of the Sun, and is estimated to be [Fe/H] = −0.05 ± 0.01.
- Cassiopeia (constellation) (Wikipedia)
Cassiopeia is a constellation and asterism in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive ‘W’ shape, formed by five bright stars.
- Alkalurops (stars.astro.illinois.edu)
ALKALUROPS (Mu Bootis). The naming of stars sometimes seems random. Some bright stars within a constellation will carry no proper names, while other much fainter ones do (the classic case that of Gamma Cassiopeiae). In Bootes, the Herdsman, the Alpha, Beta, and Gamma stars carry the proper names Arcturus, Nekkar, and Seginus. Third magnitude Delta has none, but then we can reach all the way to fourth magnitude (4.31) Mu Bootis, which is called by the jaw-breaking name Alkalurops.