The Hubble Legacy Field is an image of a small region of space in the constellation Fornax, containing an estimated 265,000 galaxies. The original release was composed of Hubble Space Telescope data accumulated over a 16-year period. Looking back approximately 13 billion years (between 400 and 800 million years after the Big Bang) it has been used to search for galaxies that existed at that time. The image was taken in a section of the sky with a low density of bright stars in the near-field, allowing much better viewing of dimmer, more distant objects. It builds on the data collected for the Hubble Ultra-Deep Field, the Hubble eXtreme Deep Field and the Great Observatories Origins Deep Survey.[1][2]
The Hubble Legacy Field image containing 16 years' worth of data from the Hubble Space TelescopeDeep fields within the Hubble Legacy Field
Located southwest of Orion in the southern-hemisphere constellation Fornax, the approximately rectangular image is about 25 arcminutes to an edge.[3] This is almost the angular diameter of a full moon viewed from Earth (which is about 31 arcminutes, or a half a degree).[4]
The images and data release were announced on May 2, 2019, by NASA.
As with the earlier fields, this one was required to contain very little emission from our galaxy, with little Zodiacal dust. The field was also required to be in a range of declinations such that it could be observed both by southern hemisphere instruments, such as the Atacama Large Millimeter Array, and northern hemisphere ones, such as those located on Hawaii. It was ultimately decided to observe a section of the Chandra Deep Field South, due to existing deep X-ray observations from Chandra X-ray Observatory and two interesting objects already observed in the Great Observatories Origins Deep Survey sample at the same location: a redshift 5.8 galaxy and a supernova. The coordinates of the field are right ascension3h 33m, declination −27° 47′ (J2000).
Observationsedit
The Hubble Legacy Field is composed of data from 7,500 exposures, with a total exposure time of 250 days.[5]
hubble, legacy, field, image, small, region, space, constellation, fornax, containing, estimated, galaxies, original, release, composed, hubble, space, telescope, data, accumulated, over, year, period, looking, back, approximately, billion, years, between, mil. The Hubble Legacy Field is an image of a small region of space in the constellation Fornax containing an estimated 265 000 galaxies The original release was composed of Hubble Space Telescope data accumulated over a 16 year period Looking back approximately 13 billion years between 400 and 800 million years after the Big Bang it has been used to search for galaxies that existed at that time The image was taken in a section of the sky with a low density of bright stars in the near field allowing much better viewing of dimmer more distant objects It builds on the data collected for the Hubble Ultra Deep Field the Hubble eXtreme Deep Field and the Great Observatories Origins Deep Survey 1 2 The Hubble Legacy Field image containing 16 years worth of data from the Hubble Space Telescope Deep fields within the Hubble Legacy Field Located southwest of Orion in the southern hemisphere constellation Fornax the approximately rectangular image is about 25 arcminutes to an edge 3 This is almost the angular diameter of a full moon viewed from Earth which is about 31 arcminutes or a half a degree 4 The images and data release were announced on May 2 2019 by NASA Contents 1 Planning 2 Observations 3 Video 4 See also 5 References 6 External linksPlanning editAs with the earlier fields this one was required to contain very little emission from our galaxy with little Zodiacal dust The field was also required to be in a range of declinations such that it could be observed both by southern hemisphere instruments such as the Atacama Large Millimeter Array and northern hemisphere ones such as those located on Hawaii It was ultimately decided to observe a section of the Chandra Deep Field South due to existing deep X ray observations from Chandra X ray Observatory and two interesting objects already observed in the Great Observatories Origins Deep Survey sample at the same location a redshift 5 8 galaxy and a supernova The coordinates of the field are right ascension 3h 33m declination 27 47 J2000 Observations editThe Hubble Legacy Field is composed of data from 7 500 exposures with a total exposure time of 250 days 5 Video edit source source source source source source source source source source Hubble Legacy Field 50 second video See also editList of deep fields List of UDF objects 1 500 References edit HubbleSite News Hubble Astronomers Assemble Wide View of the Evolving Universe hubblesite org Ashley Strickland This image is a history book of the universe CNN HubbleSite Categories news hubblesite org Moon Illusion homepages wmich edu Archived from the original on 2017 05 09 Retrieved 2019 05 05 Plait Phil May 3 2019 The Legacy of Hubble One image a quarter MILLION galaxies SYFY Wire External links edit nbsp Wikimedia Commons has media related to Hubble Legacy Field Scalable interactive Hubble Legacy Field Wikisky org Hubble Legacy Field at HubbleSite nbsp This galaxy related article is a stub You can help Wikipedia by expanding it vte nbsp This physical cosmology related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Hubble Legacy Field amp oldid 1154750560, wikipedia, wiki, book, books, library,
