[LMB] Arecibo

Markus Baur baur at chello.at
Tue Nov 24 08:14:24 GMT 2020


Am 24.11.2020 um 08:30 schrieb WalterStuartBushell:
>
>> On Nov 23, 2020, at 4:28 PM, Markus Baur via Lois-Bujold 
>> <lois-bujold at lists.herald.co.uk 
>> <mailto:lois-bujold at lists.herald.co.uk>> wrote:
>>
>> Am 23.11.2020 um 22:17 schrieb Howard Brazee:
>>>> On Nov 23, 2020, at 11:07 AM, WalterStuartBushell <proto at panix.com 
>>>> <mailto:proto at panix.com>> wrote:
>>>>
>>>> More feasible would put it in low Earth orbit, where there is 
>>>> radiation protection from the Earth’s magnetic field,
>>>> and it can scan more of the sky. This give better logistics 
>>>> including retrieval of personnel and significantly less
>>>> lag time in communication.
>>>>
>>>> OBbj: Remember the time lag when Miles had his conversation with 
>>>> Dr. Auditor Vorthys?
>>>>
>>>> Alternatively perhaps it could be located at L4 or L5, if we are OK 
>>>> with remote operation and it
>>>> could be assembled in low Earth orbit.
>>> The far side of the moon is much better protected from Earth based 
>>> radiations.   And the very slow rotation period of the moon makes it 
>>> much, much easier to have super long exposures.
>>
>> the slow rotation speed is both and advantage(as above) and a curse, 
>> as it will take about 14 days (or longer, depending on how much the 
>> telescope can steer away from zenith) until a target can be observed 
>> again
>>
>> servus
>>
>> markus
>> n
>> -- 
>
> OK, the location needs an engineering study. Another location on Earth 
> might just be the best compromise.

yes - of course .. but the radio-quiet zones around terrestiral 
observatories are becomming more and more of a hassle .. both for the 
astronomers and for the inhabitants

https://greenbankobservatory.org/growing-up-in-green-bank/

servus

markus





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