Wassux t1_j5szyxu wrote on January 25, 2023 at 10:24 AM

Reply to comment by lpenap in Billions of Celestial Objects Revealed in Gargantuan Survey of the Milky Way. The DECaPS2 survey, which took two years to complete and produced more than 10 terabytes of data from 21,400 individual exposures, identified approximately 3.32 billion objects by Wagamaga

I'm actually surprised it's only 10TB

ChronWeasely t1_j5tqesd wrote on January 25, 2023 at 2:40 PM

That's about 3kb of info about each of the 3.32 billion objects. Depending on compression, that could be almost nothing except brightness values for each pixel, or there might be a lot of info tucked in there.