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How Rubin Works

Rubin Observatory will revolutionize the way we explore the cosmos. Using the largest camera ever built to repeatedly scan the sky for 10 years, Rubin will produce an ultra-wide, ultra-high-definition, time-lapse view of our Universe. Learn how Rubin works below!

Bringing the night sky to life

Over the next decade, Rubin Observatory’s Legacy Survey of Space and Time (LSST) will capture the southern sky in extraordinary detail, building the most complete time-lapse of the cosmos ever created.

Powered by innovative technology

Rubin Observatory is packed with innovative technology, from a one-of-a-kind combined primary/tertiary mirror to the largest camera ever built. Explore the technology that makes Rubin science possible.

The Alert Stream

Rubin will detect millions of changes in the southern sky every night, and issue a world-public alert for each change within minutes, allowing scientists to quickly follow up.

Key Numbers

Primary mirror diameter
8.4
meters
Secondary mirror diameter
3.5
meters
Field of View
3.5º
(10 degrees2)
LSST Camera height
1.65
meters
LSST Camera length
3.65
meters
LSST Camera resolution
3200
Megapixels
Generated data volume
~10TB
per night
Stars & galaxies detected
37billion
in total
Number of alerts
~7million
per night
More key numbers

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