The COSMOS Hubble ACS Field

 The COSMOS Hubble ACS Field

This sea of galaxies is the complete, original COSMOS field from the Hubble Space Telescope’s Advanced Camera for Surveys (ACS). The full mosaic is a composite of 575 separate ACS images, where each ACS image is about one-tenth the diameter of the full Moon. The jagged edges of the outline are due to the separate images that make up the survey field.

Credits

Science

NASA, ESA, Anton M. Koekemoer (STScI), Nick Scoville (Caltech)

About The Object
Object Name Cosmological Evolution Survey Field, COSMOS Field
Object Description Astronomical Survey
R.A. Position 10h 00m 28.6s
Dec. Position 02° 12' 21.0"
Constellation Sextans
Dimensions The full COSMOS survey field covers about 2 square degrees.
About The Data
Data Description This is the full Hubble mosaic of the entire COSMOS field, and it was constructed by A. Koekemoer (STScI) using the Hubble data from proposals and (N. Scoville).
Instrument HST>ACS/WFC
Exposure Dates 15 Oct. 2003 - 24 Nov. 2005
Filters F814W
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
  • Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.