Preskočiť na obsah

Súbor:NGC7329 - HST - Potw2149a.jpg

Obsah stránky není podporován v jiných jazycích.
z Wikipédie, slobodnej encyklopédie

Pôvodný súbor(3 582 × 3 469 pixelov, veľkosť súboru: 3,32 MB, MIME typ: image/jpeg)

Tento zdieľaný súbor je z Wikimedia Commons a je možné ho používať na iných projektoch. Nižšie sú zobrazené informácie z popisnej stránky súboru.

Zhrnutie

Popis
English: Four Filter Fusion


This stellar whirlpool is a spiral galaxy named NGC 7329, which has been imaged by Hubble’s Wide Field Camera 3 (WFC3). Creating a colourful image such as this one using a telescope such as Hubble is not as straightforward as pointing and clicking a camera. Commercial cameras will typically try to collect as much light of all visible wavelengths as they can, in order to create the most vibrant images possible. In contrast, raw images collected by Hubble are always monochromatic, because astronomers typically want to capture very specific ranges of wavelengths of light at any time, in order to do the best, most accurate science possible. In order to control which wavelengths of light will be collected, Hubble’s cameras are equipped with a wide variety of filters, which only allow certain wavelengths of light to reach the cameras’ CCDs (a CCD is a camera’s light sensor — phone cameras also have CCDs!).

How are the colourful Hubble images possible given that the raw Hubble images are monochromatic? This is accomplished by combining multiple different observations of the same object, obtained using different filters. This image, for example, was processed from Hubble observations made using four different filters, each of which spans a different region of the light spectrum, from the ultraviolet to optical and infrared. Specialised image processors and artists can make informed judgements about which optical colours best correspond to each filter used. They can then colour the images taken using that filter accordingly. Finally, the images taken with different filters are stacked together, and voila! The colourful image of a distant galaxy is complete, with colours as representative of reality as possible.

Credit:

ESA/Hubble & NASA, A. Riess et al.

Coordinates
Position (RA):  	22 40 24.39
Position (Dec): 	-66° 28' 47.48"
Field of view:  	2.37 x 2.29 arcminutes
Orientation:   	North is 22.7° left of vertical

Colours & filters Band	Wavelength	Telescope
Optical Long pass  	350 nm   	Hubble Space Telescope WFC3
Optical V      	555 nm   	Hubble Space Telescope WFC3
Optical I      	814 nm   	Hubble Space Telescope WFC3
Infrared H      	1.6 μm   	Hubble Space Telescope WFC3
Optical Long pass 	350 nm   	Hubble Space Telescope WFC3
.
Dátum 6 December 2021, 06:00 (released)
Zdroj https://esahubble.org/images/potw2149a/
Autor

Credit:

ESA/Hubble & NASA, A. Riess et al.

Licencovanie

w:sk:Creative Commons
uvedenie autorov
uvedenie autorov
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
  • The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
  • ESA/Hubble materials may not be used to state or imply the endorsement by ESA/Hubble or any ESA/Hubble employee of a commercial product or service.
  • ESA/Hubble requests a copy of the product sent to them to be indexed in their archive.
  • If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
  • If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".

Notes:

  • Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
  • Also note that music, scientific papers and code on the esahubble.org site are not released under this license and can not be used for non-ESA/Hubble products.
  • By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:sk:Creative Commons
uvedenie autorov
Tento soubor podléhá licenci Creative Commons Uveďte autora 4.0 International.
Uvedenie autora: ESA/Hubble & NASA, J. Dalcanton; Acknowledgement: J. Schmidt
Môžete slobodne:
  • zdieľať – kopírovať, šíriť a prenášať dielo
  • meniť ho – upravovať dielo
Za nasledovných podmienok:
  • uvedenie autorov – Musíte spomenúť autorov (jednotlivo alebo kolektívne), poskytnúť odkaz na licenciu a uviesť, či ste niečo zmenili. Môžete to urobiť ľubovoľným primeraným spôsobom, ale nie spôsobom naznačujúcim, že poskytovateľ licencie podporuje vás alebo vaše použitie diela.

Štítky

Pridajte jednoriadkové vysvetlenie, čo tento súbor predstavuje

Položky prezentované týmto súborom

motív

image/jpeg

História súboru

Po kliknutí na dátum/čas uvidíte ako súbor vyzeral vtedy.

Dátum/ČasNáhľadRozmeryPoužívateľKomentár
aktuálna18:32, 6. december 2021Náhľad verzie z 18:32, 6. december 20213 582 × 3 469 (3,32 MB)Fabian RRRR== {{int:filedesc}} == {{Information |description={{en|1=''Four Filter Fusion This stellar whirlpool is a spiral galaxy named NGC 7329, which has been imaged by Hubble’s Wide Field Camera 3 (WFC3). Creating a colourful image such as this one using a telescope such as Hubble is not as straightforward as pointing and clicking a camera. Commercial cameras will typically try to collect as much light of all visible wavelengths as they can, in order to create the most vibrant images possible. In...

Na tento súbor odkazuje nasledujúca stránka:

Globálne využitie súborov

Nasledovné ďalšie wiki používajú tento súbor:

Metadáta