[LMB] OT: Arecibo

Markus Baur baur at chello.at
Sun Nov 22 21:56:10 GMT 2020


Am 22.11.2020 um 21:34 schrieb Howard Brazee:
>
>> On Nov 22, 2020, at 1:24 PM, Markus Baur via Lois-Bujold 
>> <lois-bujold at lists.herald.co.uk 
>> <mailto:lois-bujold at lists.herald.co.uk>> wrote:
>>
>>> Normal radio telescopes just listen.   Radar  is when signals come 
>>> from Arecibo and bounce off of whatever it is looking at, and come back.
>>
>> which is why it is useful only for short range targets like asteroids 
>> or planets
>
> I tried to take a photo of the Andromeda galaxy, but there was 
> something wrong with my flash.

your flash worked, but the flast is still on its way to andromeda ..

servus

markus




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