Climate and Weather

Multi Sport said:
Uhhh...yea. When did they see it?
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What instrument would they have used to see it before they did?

JPL reports the object to be of 26th magnitude astronomical brightness, which puts it at about the limit of Earth-bound telescopes that know what they are looking for, so they can let the telescope integrate the image for an hour or more.

http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017 AG13;old=0;orb=0;cov=0;log=0;cad=0#phys_par
 
espola said:
What instrument would they have used to see it before they did?

JPL reports the object to be of 26th magnitude astronomical brightness, which puts it at about the limit of Earth-bound telescopes that know what they are looking for, so they can let the telescope integrate the image for an hour or more.

http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017 AG13;old=0;orb=0;cov=0;log=0;cad=0#phys_par
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The news reports say that it is less than 30 meters diameter, about the size of the penalty area on a soccer field. Here is a satellite view centered on Lancaster, where we know there are 30 or more soccer fields in one cluster, much bigger than the size of the asteroid. Can you pick them out?
 
espola said:
What instrument would they have used to see it before they did?

JPL reports the object to be of 26th magnitude astronomical brightness, which puts it at about the limit of Earth-bound telescopes that know what they are looking for, so they can let the telescope integrate the image for an hour or more.

http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017 AG13;old=0;orb=0;cov=0;log=0;cad=0#phys_par
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When did they notice the astetoid? A month before it passed? A week? A day?
 
Wez said:
Don't confuse him with Science.
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Actually, I probably know more about Science then you do. But that doesn't really matter to you, your just interested in mileage. But I have a feeling your gonna try to prove me wrong so be my guest. Wait, I can hear E banging out a response for you already...
 
Multi Sport said:
Actually, I probably know more about Science then you do. But that doesn't really matter to you, your just interested in mileage. But I have a feeling your gonna try to prove me wrong so be my guest. Wait, I can hear E banging out a response for you already...
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Probably? When are you going to start showing it?
 
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