Astrophotographer Julien De Winter, a junior lecturer at the University of Mons in Belgium, photographed Comet Lemmon in late September from Texas, capturing its dramatic emerald glow and long tail.
In the Northern Hemisphere from now until midmonth, Comet Lemmon will appear near the Big Dipper before the sun rises, according to EarthSky, a website devoted to skywatching and astronomy.
In about a week, the comet will instead be visible in the evening sky, rising in the west.
Comet SWAN can be viewed in the evening sky through the end of the month.
Comet Lemmon was discovered in January by the Mount Lemmon Survey, which tracks near-Earth objects using telescopes located in the Santa Catalina Mountains in Arizona.
Two greenish-hued comets are swinging through the inner solar system this fall, offering a rare chance to spot them in the coming weeks.






