{"version":"1.0","type":"link","title":"Position angle - Newikis","description":"In astronomy, position angle (usually abbreviated PA) is the convention for measuring angles on the sky. The International Astronomical Union defines it as the angle measured relative to the north celestial pole (NCP), turning positive into the direction of the right ascension. In the standard…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/9/9c/Position_angle.svg/1280px-Position_angle.svg.png","thumbnail_width":1280,"thumbnail_height":1240}