织女星与彗星12P/庞士-布鲁克斯
2023年12月8日 Vega and Comet 12P/Pons-Brooks Image Credit & Copyright: Dan Bartlett Explanation: On December 4, periodic Comet 12P/Pons-Brooks shared this telescopic field of view with Vega, alpha star of the northern constellation Lyra. Fifth brightest star in planet Earth’s night, Vega is some 25 light-years distant while the much fainter comet was...