args[0]=message
args[1]=DB::DB::Message=HASH(0x5a7fe70)
Re[7]: Podskazhite pozhaluista po svetofil'tram Habbla
28.06.2007 15:58 | Dmitrii Docenko
Citata: |
Eto vse ponyatno, no samoletnyi teleskop
tozhe mozhet imet' svoi shum detektorov i razmer pikselei. A tot parametr, na kotoryi ya hotel posmotret' (ul'trafioletovye luchi) - okazalsya uhudshennym (kak budto v kosmose nahoditsya malen'koe zerkalo, a horoshie (no ne ul'trafioletovye) snimki delayut vse eti gody samoletom a lya SOFIA)... |
0.2 uglovyh sekundy - eto ne shutka. Esli razmer zerkala 2.5 metra, to za vremya nablyudeniya ono dolzhno drozhat' ne bolee, chem na 2.5 mikrona otnositel'no vtorichnogo zerkala i drugih chastei teleskopa (a v samolete vibracii ochen' mnogo). Bolee togo, napravlenie samoleta dolzhno podderzhivat'sya postoyannym s takoi zhe tochnost'yu, to est' ne dolzhno byt' nikakih (dazhe ochen' malen'kih) vozdushnyh yam. Opyat'-taki, v vozduhe budet razmytie izobrazheniya prosto iz-za ego peremennyh neodnorodnostei. Krome togo, atmosfera vse ravno neprozrachna v dalekom UF, gde u Habbla est' mnozhestvo nablyudenii (ya znayu o spektroskopii, no, navernoe, est' i kartinki).
Dlya SOFIA vse problemy v 10 i bolee raz menee aktual'ny iz-za hudshego uglovogo razresheniya v IK diapazone.
Krome togo, v kosmos vyvesti chto by to ni bylo nezamechennym nevozmozhno. Katalogiziruetsya vse bol'she 20 sm (kazhetsya).
Esli by byl samolet tipa SOFIA dlya nablyudeniya UF izlucheniya, to eto tozhe ne ostalos' by nezamechennym astronomami, tak kak on byl by unikal'nym instrumentom i pri ego sozdanii nuzhno bylo by preodolet' kuchu specificheskih tehnicheskih problem.
Net, ne veryu
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- Kosmicheskii teleskop "Habbl" (scientific.ru, 19.06.1995 23:03, 4.5 KBait, otvetov: 30)
- Podskazhite pozhaluista po svetofil'tram Habbla (R. G. Chertanov, 23.06.2007 13:30, 1008 Bait, otvetov: 7)
- Re: Podskazhite pozhaluista po svetofil'tram Habbla (Dmitrii Docenko, 24.06.2007 20:19, 1.5 KBait, otvetov: 6)
- Re[2]: Podskazhite pozhaluista po svetofil'tram Habbla (R. G. Chertanov, 26.06.2007 19:05, 816 Bait, otvetov: 5)
- Re[3]: Podskazhite pozhaluista po svetofil'tram Habbla (Dmitrii Docenko, 26.06.2007 20:38, 1.3 KBait, otvetov: 4)
- Re[4]: Podskazhite pozhaluista po svetofil'tram Habbla (R. G. Chertanov, 27.06.2007 22:09, 710 Bait, otvetov: 3)
- Re[5]: Podskazhite pozhaluista po svetofil'tram Habbla (Dmitrii Docenko, 28.06.2007 12:12, 1.6 KBait, otvetov: 2)
- Re[6]: Podskazhite pozhaluista po svetofil'tram Habbla (R. G. Chertanov, 28.06.2007 14:46, 1.4 KBait, otvetov: 1)
- >> Re[7]: Podskazhite pozhaluista po svetofil'tram Habbla (Dmitrii Docenko, 28.06.2007 15:58, 2.0 KBait)
- Re: Kosmicheskii teleskop "Habbl" (R. G. Chertanov, 28.06.2007 21:15, 1.3 KBait, otvetov: 2)
- Re[2]: Kosmicheskii teleskop "Habbl" (Dmitrii Docenko, 29.06.2007 11:05, 1.8 KBait)
- Re[2]: Kosmicheskii teleskop "Habbl" (pointedlynovell liu, 24.11.2022 6:53, 7.8 KBait)
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- Re[5]: Kosmicheskii teleskop "Habbl" (R. G. Chertanov, 8.08.2007 3:15, 1.9 KBait, otvetov: 9)
- Re[6]: Kosmicheskii teleskop "Habbl" (Dmitrii Docenko, 8.08.2007 12:57, 2.3 KBait, otvetov: 8)
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