This page describes an image Gemini South's primary mirror and telescope structure
Scarica File ( immagine 23.24 MB)
Didascalia:
This is the primary mirror and supporting structure of a large optical telescope at the Gemini South Observatory in Chile. The primary mirror is the largest and most important mirror in a reflecting telescope: its gently curved surface gathers light from faint stars, galaxies, and nebulae and reflects that light to a focal point. At this focal point light is either fed directly in to an instrument to record spectra and images or redirected to such an instrument by a series of further mirrors. The sturdy metal framework around the primary mirros keeps the mirror precisely aligned and protected while the telescope moves to track objects across the sky.
In telescopes that use mirrors instead of lenses, such as this one, the mirror is what collects and focuses the light from distant celestial objects. Larger mirrors can capture more light, allowing astronomers to see fainter and more distant objects. A larger primary mirror can also take sharper images of the sky, but this is often negated by the blurring effect of the Earth's atmopshere. A primary mirror must be perfectly smooth to tolerances of fractions of a wavelength of light so that it produces sharp, clear images. We can think of the primary mirror as the “eye” of the telescope that looks out into space, with its shape and support enabling powerful astronomical observations.
Didascalie in altre lingue
Crediti per l'immagine: International Gemini Observatory/NOIRLab/NSF/AURA/M. Paredes Link per i Crediti
Termini di glossario connessi:
Specchio
, Telescopio a riflessione
Licenza per l'immagine: Creative Commons Attribuzione 4.0 Internazionale (CC BY 4.0) Creative Commons Attribuzione 4.0 Internazionale (CC BY 4.0) icone
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Didascalie in lingue diverse:
Didascalia: Dies ist der Hauptspiegel und die Tragkonstruktion eines großen optischen Teleskops am Gemini-South-Observatorium in Chile. Der Hauptspiegel ist der größte und wichtigste Spiegel in einem Spiegelteleskop: Seine sanft gewölbte Oberfläche sammelt das Licht von schwachen Sternen, Galaxien und Nebeln und reflektiert es zu einem Brennpunkt. An diesem Brennpunkt wird das Licht entweder direkt in ein Instrument geleitet, um Spektren und Bilder aufzuzeichnen, oder über eine Reihe weiterer Spiegel zu einem solchen Instrument umgelenkt. Das stabile Metallgerüst um den Hauptspiegel sorgt dafür, dass der Spiegel präzise ausgerichtet und geschützt bleibt, während sich das Teleskop bewegt, um Objekte am Himmel zu verfolgen.
In Teleskopen, die Spiegel anstelle von Linsen verwenden, wie dieses hier, ist es der Spiegel, der das Licht von entfernten Himmelsobjekten sammelt und bündelt. Größere Spiegel können mehr Licht einfangen, wodurch Astronomen schwächere und weiter entfernte Objekte beobachten können. Ein größerer Hauptspiegel kann zudem schärfere Bilder des Himmels liefern, was jedoch oft durch die Unschärfe zunichte gemacht wird, die durch die Erdatmosphäre verursacht wird. Ein Hauptspiegel muss bis auf Bruchteile einer Lichtwellenlänge perfekt glatt sein, damit er scharfe, klare Bilder erzeugt. Man kann sich den Hauptspiegel als das „Auge“ des Teleskops vorstellen, das in den Weltraum blickt, wobei seine Form und seine Halterung leistungsstarke astronomische Beobachtungen ermöglichen.
Crediti per l'immagine: Internationales Gemini-Observatorium/NOIRLab/NSF/AURA/M. Paredes
Termini di glossario connessi: Spiegel , Spiegelteleskop Stato di traduzione della didascalia: Non ancora approvato da un revisore
Traduttori della didascalia: Simon Kraus
Didascalia: This is the primary mirror and supporting structure of a large optical telescope at the Gemini South Observatory in Chile. The primary mirror is the largest and most important mirror in a reflecting telescope: its gently curved surface gathers light from faint stars, galaxies, and nebulae and reflects that light to a focal point. At this focal point light is either fed directly in to an instrument to record spectra and images or redirected to such an instrument by a series of further mirrors. The sturdy metal framework around the primary mirros keeps the mirror precisely aligned and protected while the telescope moves to track objects across the sky.
In telescopes that use mirrors instead of lenses, such as this one, the mirror is what collects and focuses the light from distant celestial objects. Larger mirrors can capture more light, allowing astronomers to see fainter and more distant objects. A larger primary mirror can also take sharper images of the sky, but this is often negated by the blurring effect of the Earth's atmopshere. A primary mirror must be perfectly smooth to tolerances of fractions of a wavelength of light so that it produces sharp, clear images. We can think of the primary mirror as the “eye” of the telescope that looks out into space, with its shape and support enabling powerful astronomical observations.
Crediti per l'immagine: International Gemini Observatory/NOIRLab/NSF/AURA/M. Paredes
Termini di glossario connessi: Mirror , Reflecting Telescope
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