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The Wide Field Camera 3 (WFC3) is the Hubble Space Telescope's last and most technologically advanced instrument to take images in the visible spectrum. It was installed as a replacement for the Wide Field and Planetary Camera 2 during the first spacewalk of Space Shuttle mission STS-125 (Hubble Space Telescope Servicing Mission 4) on May 14, 2009.

The Wide Field Camera 3 being prepared for its launch aboard STS-125

As of January 2019[update] WFC3 was still operating.

Contents

The Butterfly nebula imaged by WFC3 in 2009
WFC3 infrared view of the Horsehead nebula

The instrument is designed to be a versatile camera capable of imaging astronomical targets over a very wide wavelength range and with a large field of view. It is a fourth-generation instrument for Hubble.

The instrument has two independent light paths: a UV and optical channel that uses a pair of charge-coupled devices (CCD) to record images from 200 to 1000 nm; and a near infrared detector array that covers the wavelength range from 800 to 1700 nm.

The UV/optical channel has two CCDs, each 2048×4096 pixels, while the IR detector is 1024×1024. The focal planes of both channels were designed specifically for this camera. The optical channel has a field of view of 164 by 164 arcsec (2.7 by 2.7 arcminute, about 8.5% of the diameter of the full moon as seen from Earth) with 0.04 arcsec pixels. This view is comparable to the Wide Field and Planetary Camera 2 and is slightly smaller than that of the Advanced Camera for Surveys. The near infrared channel has a field of view of 135 by 127 arcsec (2.3 by 2.1 arcminutes) with 0.13 arcsec pixels, and has a much larger field of view than Near Infrared Camera and Multi-Object Spectrometer, which it was designed to largely replace. The near infrared channel is a pathfinder for the future James Webb Space Telescope.

Both channels have a variety of broad and narrow-band filters, as well as prisms and grisms, which enable wide-field, very-low-resolution spectroscopy that is useful for surveys. The optical channel covers the visible spectrum (380 nm to 780 nm) with high efficiency, and is also able to see into the near ultraviolet (down to 200 nm).

The IR channel is designed to lack sensitivity beyond 1700 nm (as compared with the 2500 nm limit for NICMOS) to avoid being swamped by thermal background coming from the relatively warm HST structure. This allows WFC3 to be cooled using a thermoelectric cooler instead of carrying a consumable cryogen to cool the instrument.

The camera makes use of returned space hardware as the structure is built from the original Wide Field and Planetary Camera as well as the filter assembly. These were switched for the Wide Field and Planetary Camera 2 by the servicing mission STS-61 in December 1993.: 343

WFC3 was originally conceived as an optical channel only; the near infrared channel was added later. WFC3 is intended to ensure that Hubble retains a powerful imaging capability through to the end of its lifetime.

WFC3 had been in the planning since the Spring of 1998. It was built by a team of highly experienced Hubble engineers and scientists drawn from many organizations, with leadership at Goddard Space Flight Center in Maryland. WFC3 was constructed mostly at Goddard Space Flight Center and Ball Aerospace in Colorado. Various parts were built by contractors across the United States and the United Kingdom.

The instrument was scheduled by NASA to launch with STS-125 on 14 October 2008, but the mission was postponed due to additional repairs that were required. The mission launched on 11 May 2009 and the WFC3 was installed on 14 May. by astronauts John M. Grunsfeld and Andrew J. Feustel.

WFC3 Pillars of Creation

In celebration of the 25th anniversary since the launch of the Hubble Space Telescope, astronomers assembled a larger and higher-resolution photograph of the Pillars of Creation, which was unveiled in January 2015 at the American Astronomical Society meeting in Seattle. The image was photographed by the Hubble Telescope's Wide Field Camera 3, installed in 2009, and produced using near-infrared and visible light exposure.

The 1995 version of this picture of part of the Eagle nebula was taken with WFPC2.

2015 onwards

On January 8, 2019, the instrument experienced a suspected hardware problem and the onboard computer suspended operations with the WFC3 while other instruments continued operation. NASA later stated that the issue was software related and brought the instrument to normal status on January 17, 2019.

  • WFC3 view of Mystic Mountain in the Carina Nebula

  • A higher-resolution HST image of the Pillars of Creation in the Eagle Nebula, taken in 2014 as a tribute to the original photograph

  • Jupiter in 2010, by WFC3

HST instruments :

Other space telescopes and their instruments :

  1. "Wide Field Camera 3 Instrument Handbook for Cycle 23"(PDF). Space Telescope Science Institute. January 2014. RetrievedSeptember 17, 2015.
  2. MacKenty, J.W.; Kimble, R.A. (January 2003). "Status of the HST Wide Field Camera 3"(pdf). American Astronomical Society poster session: 1.{{cite journal}}:Cite journal requires |journal= ()
  3. "Wide Field Camera 3 Fact Sheet". NASA. November 2007.
  4. John W. MacKenty (2002). "Wide Field Camera 3: Design, Status, and Calibration Plans"(PDF). Space Telescope Science Institute. RetrievedSeptember 17, 2015.
  5. "Space Telescope Operations Control Center — Flight Day 4". NASA. May 14, 2009.
  6. "Hubble Goes High-Definition to Revisit Iconic 'Pillars of Creation'". NASA. 2015-01-05. Retrieved2015-01-06.
  7. "Wide Field Camera 3 Anomaly on Hubble Space Telescope". NASA. 2019-01-08.
Wikimedia Commons has media related toWide Field Camera 3.

Wide Field Camera 3 Article Talk Language Watch Edit The Wide Field Camera 3 WFC3 is the Hubble Space Telescope s last and most technologically advanced instrument to take images in the visible spectrum It was installed as a replacement for the Wide Field and Planetary Camera 2 during the first spacewalk of Space Shuttle mission STS 125 Hubble Space Telescope Servicing Mission 4 on May 14 2009 1 The Wide Field Camera 3 being prepared for its launch aboard STS 125 As of January 2019 update WFC3 was still operating Contents 1 Specifications 2 History 2 1 WFC3 Pillars of Creation 2 2 2015 onwards 3 Gallery 4 See also 5 References 6 External linksSpecifications Edit The Butterfly nebula imaged by WFC3 in 2009 WFC3 infrared view of the Horsehead nebula The instrument is designed to be a versatile camera capable of imaging astronomical targets over a very wide wavelength range and with a large field of view It is a fourth generation instrument for Hubble The instrument has two independent light paths a UV and optical channel that uses a pair of charge coupled devices CCD to record images from 200 to 1000 nm and a near infrared detector array that covers the wavelength range from 800 to 1700 nm The UV optical channel has two CCDs each 2048 4096 pixels while the IR detector is 1024 1024 2 The focal planes of both channels were designed specifically for this camera The optical channel has a field of view of 164 by 164 arcsec 2 7 by 2 7 arcminute about 8 5 of the diameter of the full moon as seen from Earth with 0 04 arcsec pixels This view is comparable to the Wide Field and Planetary Camera 2 and is slightly smaller than that of the Advanced Camera for Surveys The near infrared channel has a field of view of 135 by 127 arcsec 2 3 by 2 1 arcminutes with 0 13 arcsec pixels and has a much larger field of view than Near Infrared Camera and Multi Object Spectrometer which it was designed to largely replace 2 The near infrared channel is a pathfinder for the future James Webb Space Telescope 3 Both channels have a variety of broad and narrow band filters as well as prisms and grisms which enable wide field very low resolution spectroscopy that is useful for surveys 2 The optical channel covers the visible spectrum 380 nm to 780 nm with high efficiency and is also able to see into the near ultraviolet down to 200 nm 1 The IR channel is designed to lack sensitivity beyond 1700 nm as compared with the 2500 nm limit for NICMOS to avoid being swamped by thermal background coming from the relatively warm HST structure This allows WFC3 to be cooled using a thermoelectric cooler instead of carrying a consumable cryogen to cool the instrument 3 The camera makes use of returned space hardware as the structure is built from the original Wide Field and Planetary Camera as well as the filter assembly 2 These were switched for the Wide Field and Planetary Camera 2 by the servicing mission STS 61 in December 1993 1 343 WFC3 was originally conceived as an optical channel only the near infrared channel was added later WFC3 is intended to ensure that Hubble retains a powerful imaging capability through to the end of its lifetime History EditWFC3 had been in the planning since the Spring of 1998 It was built by a team of highly experienced Hubble engineers and scientists drawn from many organizations with leadership at Goddard Space Flight Center in Maryland WFC3 was constructed mostly at Goddard Space Flight Center and Ball Aerospace in Colorado 3 Various parts were built by contractors across the United States and the United Kingdom 4 The instrument was scheduled by NASA to launch with STS 125 on 14 October 2008 but the mission was postponed due to additional repairs that were required The mission launched on 11 May 2009 and the WFC3 was installed on 14 May 5 by astronauts John M Grunsfeld and Andrew J Feustel WFC3 Pillars of Creation Edit In celebration of the 25th anniversary since the launch of the Hubble Space Telescope astronomers assembled a larger and higher resolution photograph of the Pillars of Creation which was unveiled in January 2015 at the American Astronomical Society meeting in Seattle The image was photographed by the Hubble Telescope s Wide Field Camera 3 installed in 2009 and produced using near infrared and visible light exposure 6 The 1995 version of this picture of part of the Eagle nebula was taken with WFPC2 2015 onwards Edit On January 8 2019 the instrument experienced a suspected hardware problem and the onboard computer suspended operations with the WFC3 while other instruments continued operation NASA later stated that the issue was software related and brought the instrument to normal status on January 17 2019 7 Gallery Edit WFC3 view of Mystic Mountain in the Carina Nebula A higher resolution HST image of the Pillars of Creation in the Eagle Nebula taken in 2014 as a tribute to the original photograph Jupiter in 2010 by WFC3See also EditHST instruments Wide Field and Planetary Camera Wide Field and Planetary Camera 2 Advanced Camera for Surveys Cosmic Origins Spectrograph Faint Object Camera Faint Object Spectrograph Goddard High Resolution Spectrograph Near Infrared Camera and Multi Object Spectrometer Space Telescope Imaging Spectrograph Other space telescopes and their instruments Spitzer Space Telescope Great Observatory for infrared launched 2003 Infrared Array Camera Spitzer near to mid infrared camera NIRCam Near IR camera under 5 micron light for JWST References Edit a b c Wide Field Camera 3 Instrument Handbook for Cycle 23 PDF Space Telescope Science Institute January 2014 Retrieved September 17 2015 a b c d MacKenty J W Kimble R A January 2003 Status of the HST Wide Field Camera 3 pdf American Astronomical Society poster session 1 a href wiki Template Cite journal title Template Cite journal cite journal a Cite journal requires journal help a b c Wide Field Camera 3 Fact Sheet NASA November 2007 John W MacKenty 2002 Wide Field Camera 3 Design Status and Calibration Plans PDF Space Telescope Science Institute Retrieved September 17 2015 Space Telescope Operations Control Center Flight Day 4 NASA May 14 2009 Hubble Goes High Definition to Revisit Iconic Pillars of Creation NASA 2015 01 05 Retrieved 2015 01 06 Wide Field Camera 3 Anomaly on Hubble Space Telescope NASA 2019 01 08 External links EditWikimedia Commons has media related to Wide Field Camera 3 The WFC3 Web site at the Space Telescope Science Institute which includes a description of the instrument and a link that compares the capabilities of various Hubble instruments Hubble Space Telescope Team Hubble instrument comparisons NASA gov WF3 Retrieved from https en wikipedia org w index php title Wide Field Camera 3 amp oldid 1051940492, wikipedia, wiki, book,

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