APOD on Nostr: **Astronomy Picture of the Day** 30 December 2025 **An Artificial Comet** Image ...
**Astronomy Picture of the Day**
30 December 2025
**An Artificial Comet**
Image Credit & Copyright:
Wang Chao
Yes, but can your comet tail do this? No, and what you are seeing is not the tail of a comet. The picture features a cleverly overlayed time-lapse sequence of a group of satellites orbiting Earth together in June. Specifically, these are Starlink communications satellites in low Earth orbit reflecting back sunlight before sunrise to Inner Mongolia, China. Although the satellites appear to the human eye as points, the 20-second-long camera exposures caused them to appear as short streaks. Currently there are over 9000 Starlinks in orbit, with more being launched nearly every week. Other satellite constellations are also being planned. Explore the Universe: Random APOD Generator
#APOD #Astrogeology #Cosmos #Astrochemistry #Cosmological
https://apod.nasa.gov/apod/ap251230.htmlPublished at
2025-12-30 05:05:56 UTCEvent JSON
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"content": "**Astronomy Picture of the Day**\n\n30 December 2025\n\n**An Artificial Comet**\n\nhttps://apod.nasa.gov/apod/image/2512/ArtificialComet_Chao_3000.jpg\n\nImage Credit \u0026 Copyright: \nWang Chao\n\n\nYes, but can your comet tail do this? No, and what you are seeing is not the tail of a comet. The picture features a cleverly overlayed time-lapse sequence of a group of satellites orbiting Earth together in June. Specifically, these are Starlink communications satellites in low Earth orbit reflecting back sunlight before sunrise to Inner Mongolia, China. Although the satellites appear to the human eye as points, the 20-second-long camera exposures caused them to appear as short streaks. Currently there are over 9000 Starlinks in orbit, with more being launched nearly every week. Other satellite constellations are also being planned. Explore the Universe: Random APOD Generator\n\n#APOD #Astrogeology #Cosmos #Astrochemistry #Cosmological\n\nhttps://apod.nasa.gov/apod/ap251230.html\n",
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