Archive for September 9, 2019

09/09/2019 – Ephemeris – Looking for interstellar meteoroids hitting the Moon

September 9, 2019 Comments off

Ephemeris for Monday, September 9th. Today the Sun will be up for 12 hours and 50 minutes, setting at 8:05, and it will rise tomorrow at 7:15. The Moon, 4 days past first quarter, will set at 3:29 tomorrow morning.

Two Harvard University astronomers who have studied the interstellar asteroid or comet that was discovered last year ‘Oumuamua are proposing to observe small interstellar meteoroids with a lunar orbiting satellite when they hit the Moon. A spectrum of the flash they make when they hit the Moon will allow the constituent elements and isotopes to be discovered. These values have been studied for a long time from meteorites in our solar system. So a body from another solar system born of material from a different supernova and hypernova than our solar system may show different isotope ratios of its elements. A hypernova is a newly discovered event, when two neutron stars collide, and are the main source of heavy elements like gold.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.



Artist visualization of ‘Oumuamua. Credit Credit: European Southern Observatory / M. Kornmesser.

There’s the article about it on Universe Today: