Travelers in the Night Eps. 335E & 336E: Returnee & 2 Suns

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an
observational asteroid hunting astronomer. Dr. Grauer retired
from the University of Arkansas at Little Rock in 2006.
travelersinthenight.org


From May 2025.


Today's 2 topics:


- On May 5, 2014 when I discovered 2014 JO25 with the Catalina
Sky Survey's 60 inch telescope on Mt. Lemmon, Arizona it was the
brightest, fastest asteroid I had ever seen. In April of 2017,
2014 JO25 returned to come within 1.1 million miles of us at 21
mi/s. This rare, very close approach by an asteroid, of 2014
JO25's size allowed scientists at NASA's Goldstone Solar System
Radar in California and the National Science Foundation's Arecibo
Observatory in Puerto Rico to obtain radar images of it. 


 


- The NASA Kepler Spacecraft has discovered more than 2,000
planets which have been confirmed to be orbiting distant stars.
It performs this remarkable feat by imaging more than 145,000
stars simultaneously to observe and measure the tiny dips in
light which occur as a planet passes in front of its star.
Astronomers have long known that many of the solar systems in the
Milky Way have more than one star. 


 


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