The orbit of asteroid 2011 ES4 is still not entirely known. Our knowledge of it might improve sometime today – or early tomorrow – if it is “recovered” by astronomers. It’s expected to pass within the moon’s orbit, possibly as close as 0.19 lunar distances. Source: https://earthsky.org/space/asteroid-2011-es4-closer-than-moon-september-1-2020…
Tag: observatories
Repeating fast radio burst woke up again on schedule. Now what?
FRB 121102 is one of the few known repeating fast radio bursts, and astronomers are trying to use this new period of activity to understand it better. Some predict the current active phase should end sometime between August 31 and September 9. Will it? Source: https://earthsky.org/space/repeating-fast-radio-burst-frb-121102-wakes-up-chime…
Maunakea observatories discover three pairs of merging supermassive black holes
A cosmic dance between two merging galaxies, each one containing a supermassive black hole that’s rapidly feeding on so much material it creates a phenomenon known as a quasar, is a rare find. Source: https://phys.org/news/2020-08-maunakea-observatories-pairs-merging-supermassive.html…
Astronomers issue report on the effect of ‘satellite constellations’ on astronomy
A new report concludes that large constellations of bright satellites in low-Earth orbit will fundamentally change ground-based astronomy and impact the appearance of the night sky for stargazers worldwide. Source: https://earthsky.org/space/astronomers-report-effect-of-satellite-constellations-astronomy…
Truck-sized asteroid swept within 2,000 miles on Sunday
Asteroid ZTF0DxQ – now officially labeled 2020 QG – now holds the record for the closest flyby of Earth. It swept just 2,000 miles (3,000 km) from Earth’s surface, or about a quarter of the diameter of Earth itself. Source: https://earthsky.org/space/closest-known-asteroid-flyby-ztf0dxq-2020-qg…