Xi Ophiuchi [SEP] constellation
Xi Ophiuchi
Xi Ophiuchi (ξ Oph) is a multiple star system in the constellation Ophiuchus, approximately 56.6 light years away based on parallax.
The primary is a class F2V (yellow-white dwarf) star with apparent magnitude is 4.39. Component B has a magnitude of 8.9 and a separation of 3.5", while component C has a magnitude of 13.7 and a separation of 10.8.
Analytics (ice hockey)
In ice hockey, analytics is the analysis of the characteristics of hockey players and teams through the use of statistics and other tools to gain a greater understanding of the effects of their performance. Three commonly used statistics in ice hockey analytics are "Corsi" and "Fenwick", both of which use shot attempts to approximate puck possession, and "PDO", which is often considered a measure of luck.
Hockey Hall of Fame coach Roger Nielson is credited as being an early pioneer of