{"id":1878,"date":"2021-12-20T10:50:41","date_gmt":"2021-12-20T09:50:41","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?page_id=1878"},"modified":"2026-03-13T22:06:49","modified_gmt":"2026-03-13T21:06:49","slug":"fotometricka-kamera","status":"publish","type":"page","link":"https:\/\/stel.asu.cas.cz\/cs\/perkuv-dalekohled\/pristroje\/fotometricka-kamera\/","title":{"rendered":"Fotometrick\u00e1 kamera"},"content":{"rendered":"\n
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Prim\u00e1rn\u00ed ohnisko s CCD kamerou pro zobrazov\u00e1n\u00ed a fotometrii. Kredit: M. \u0160lechta<\/figcaption><\/figure>\n\n\n\n

Fotometrick\u00e1 kamera G2-1000BI (Moravsk\u00e9 p\u0159\u00edstroje) vybaven\u00e1 \u010dipem E2V CCD 47-10<\/a> je instalov\u00e1na v prim\u00e1rn\u00edm ohnisku dalekohledu. Ohniskov\u00e1 vzd\u00e1lenost je 9 m (f\/4.5), pou\u017eit\u00ed korektoru pro fotometrickou kameru zkracuje efektivn\u00ed ohnisko na 7 m (f\/3.5). Zm\u011bnu konfigurace p\u0159\u00edstroj\u016f \u2013 vl\u00e1knov\u00fdch spektrograf\u016f a fotometrick\u00e9 kamery \u2013 je mo\u017en\u00e9 prov\u00e9st b\u011bhem jedn\u00e9 minuty. Kamera je vybavena rota\u010dn\u00edm filtrov\u00fdm kolem osazen\u00fdm p\u011bti filtry. \u010cip kamery je Peltierov\u00fdm \u010dl\u00e1nkem chlazen na teplotu a\u017e 40\u00b0 pod okol\u00ed.<\/p>\n\n\n\n

Kamera a \u010dip<\/h5>\n\n\n\n
\n\n\n\n\n
ADC<\/strong><\/td>\nRozli\u0161en\u00ed<\/strong><\/td>\nPixel size<\/strong><\/td>\nVy\u010d\u00edtac\u00ed \u0161um<\/strong><\/td>\n\u00da\u010dinnost<\/strong><\/td>\nLinearita<\/strong><\/td>\nReading<\/strong><\/td>\n<\/tr>\n
16 bit<\/strong><\/td>\n1056 x 1027
(1024 x 1024)<\/strong><\/td>\n		13 x 13 <\/strong>\u03bcm<\/strong><\/td>\n9 ADU<\/strong><\/td>\n90% (500-700 nm)<\/strong><\/td>\n> 95 %<\/strong><\/td>\n10 s<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n
Camera and telescope<\/h5>\n\n\n\n
\n\n\n\n\n
Efektivn\u00ed ohnisko<\/strong><\/td>\nZorn\u00e9 pole<\/strong><\/td>\n\u00dahlov\u00e9 rozli\u0161en\u00ed<\/strong><\/td>\nTestovac\u00ed sn\u00edmek<\/a><\/strong><\/td>\n<\/tr>\n
7 000 mm<\/strong><\/td>\n6.3′ x 6.3′<\/strong><\/td>\n0.385″\/pixel<\/strong><\/td>\n\n
\"\"<\/a><\/figure>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n
Fotometrick\u00e9 filtery<\/h5>\n\n\n\n

Kamera je vybavena p\u011btipozi\u010dn\u00edm filtrov\u00fdm kolem. Dispozici jaou tyto filtry: Sloan u\u2019, Sloan g\u2019, Sloan r\u2019, Sloan i\u2019, Sloan z\u2019, H-alpha, [O-III], [S-II], Bessel B, Bessel V, Bessel R, Bessel I. \u00dazkop\u00e1smov\u00e9 filtry maj\u00ed \u0161\u00ed\u0159ku propustnosti 3 nm.<\/p>\n\n\n\n

V sou\u010dasnosti je v\u0161ak instalov\u00e1no t\u011bchto p\u011bt filtr\u016f<\/b>, viz tabulka.<\/p>\n\n\n\n

\n\n\n\n\n
Pozice<\/strong><\/td>\n0<\/strong><\/td>\n1<\/strong><\/td>\n2<\/strong><\/td>\n3<\/strong><\/td>\n4<\/strong><\/td>\n<\/tr>\n
Filter<\/strong><\/td>\nH-alpha<\/strong><\/td>\ni‘ (SSDS)<\/strong><\/td>\nr‘ (SSDS)<\/strong><\/td>\ng‘ (SSDS)<\/strong><\/td>\nu‘ (SSDS)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n
V\u00fdkon kamery ve spojen\u00ed s dalekohledem (p\u0159i dobr\u00e9m seeingu)<\/h5>\n\n\n\n
jasnost<\/strong>     expozice<\/strong>  filtr<\/strong>     chyba m\u011b\u0159en\u00ed<\/strong>        \u03a7<\/strong>\n~ 12.5 mag     8 s      r'       ~ 0.002 mag      ~ 1,05\n~ 15.2 mag     8 s      r'       ~ 0.006 mag      ~ 1,10\n~ 16.2 mag    10 s      g'       ~ 0.020 mag      ~ 2,20\n~ 18.3 mag    20 s      g'       ~ 0.030 mag      ~ 1,10\n~ 23.3 mag     7 h      r'       ~ 0.160 mag      ~ 1,40<\/pre>\n\n\n
\n
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Limit fotometrick\u00e9ho dosahu v magnitud\u00e1ch (ve filtru Sloan r) po expozici 60 s v r\u016fzn\u00e9 v\u00fd\u0161ce nad obzorem.<\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"
Fotometrick\u00e1 kamera G2-1000BI (Moravsk\u00e9 p\u0159\u00edstroje) vybaven\u00e1 \u010dipem E2V CCD 47-10 je instalov\u00e1na v prim\u00e1rn\u00edm ohnisku dalekohledu. Ohniskov\u00e1 vzd\u00e1lenost je 9 m (f\/4.5), pou\u017eit\u00ed korektoru pro<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":490,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1878","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/pages\/1878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/comments?post=1878"}],"version-history":[{"count":32,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/pages\/1878\/revisions"}],"predecessor-version":[{"id":3750,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/pages\/1878\/revisions\/3750"}],"up":[{"embeddable":true,"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/pages\/490"}],"wp:attachment":[{"href":"https:\/\/stel.asu.cas.cz\/cs\/wp-json\/wp\/v2\/media?parent=1878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}