Arco de observação
Arc d'observació
觀測弧
Arc d'observation
Arco de observación
قوس المراقبة
Observation arc
Дуга наблюдения
Дуга спостереження
Ar_h-zAccsY
Asteroid Hazards, Part 3: Finding the Path
Asteroid Hazards, Part 2: The Challenge of Detection
bir asteroit veya kuyruklu yıldız gibi bir Güneş Sistemi gövdesinin en erken ve en son gözlemleri arasındaki süre
time between earliest and latest observations of a Solar System body like an asteroid or comet