Copyright:
Roberto Colombari
原文:
The Pelican Nebula is slowly being transformed. IC 5070, the official designation, is divided from the larger North America Nebula by a molecular cloud filled with dark dust. The Pelican, however, receives much study because it is a particularly active mix of star formation and evolving gas clouds. The featured picture was produced in three specific colors — light emitted by sulfur, hydrogen, and oxygen — that can help us to better understand these interactions. The light from young energetic stars is slowly transforming the cold gas to hot gas, with the advancing boundary between the two, known as an ionization front, visible in bright orange on the right. Particularly dense tentacles of cold gas remain. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will surely leave something that appears completely different. Yearly Astronomy Review: APOD editor to speak in January in Philadelphia and New York City
中文翻譯:
📸 **Pelican Nebula Transformation** 🌌
The Pelican Nebula, officially known as IC 5070, is undergoing a gradual transformation. Divided from the larger North America Nebula by a dark molecular cloud, the Pelican is a fascinating area of study due to its dynamic mix of star formation and evolving gas clouds.
The featured image captures light emitted by sulfur, hydrogen, and oxygen, helping us to better understand the interactions within this celestial region. The energetic light from young stars is slowly converting cold gas into hot gas, with the advancing boundary between the two—referred to as an ionization front—visible in bright orange on the right. Interestingly, particularly dense tentacles of cold gas remain, hinting at the complexity of this nebula.
In millions of years, the Pelican Nebula may not retain its name, as the shifting balance and placement of stars and gas will eventually lead to a completely different appearance.
🌟✨ **Yearly Astronomy Review: APOD editor to speak in January in Philadelphia and New York City!** ✨🌟
#PelicanNebula #IC5070 #StarFormation #Astrophotography #CelestialBeauty #AstronomyLovers #SpaceScience #NebulaTransformation #YearlyAstronomyReview #APOD
來源:NASA每日圖片
