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The Vera C. Rubin Observatory is under construction at Cerro Pachon, in Chile. This image shows construction progress in late 2019. The observatory should be able to spot interstellar objects like Oumuamua. Image Credit: Wil O'Mullaine/LSST .the upcoming Vera Rubin Telescope will be a fantastic interstellar object hunter, and could possibly find up to 70 objects a year coming from other star systems.
Because of the telescope’s repeated observations, there will be an enormous amount of data to calculate the positions and orbits of all these objects. With all that data and mapping, it is expected that Rubin will be able to detect faint interstellar objects – and these speedy ISOs might even actually stand out among all the other objects. Basically, the LSST will be able to capture a timelapse view of interstellar objects on their fast journeys through our Solar System.
To come up with this number, they applied recently developed tool called the Object In Field algorithm.“It serves as an observation generator that simulates a real LSST campaign,” Marceta told Universe Today via email, “providing time and coordinates for every LSST field of view and exposure time. It also allows for the inclusion of an arbitrary population of moving solar system objects, such as asteroids or comets.
This assumes that at least that many interstellar objects actually exist. Marceta said they assumed a number density of 0.1 object per cubic astronomical unit, a value implied by the detection of ‘Oumuamua, “which remains highly uncertain, similar to other parameters associated with this population,” he said.
The complete focal plane of the future LSST Camera is more than 2 feet wide and contains 189 individual sensors that will produce 3,200-megapixel images. Crews at SLAC have now taken the first images with it.
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