SPT0615-JD is a
dwarf galaxy
A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. The Large Magellanic Cloud, which closely orbits the Milky Way and contains over 30 billion stars, is ...
situated within the constellation
Pictor
Pictor is a constellation in the Southern Celestial Hemisphere, located between the star Canopus and the Large Magellanic Cloud. Its name is Latin for Painting, painter, and is an abbreviation of the older name Equuleus Pictoris (the "painter's ...
, and is the farthest galaxy ever imaged by means of
gravitational lensing
A gravitational lens is a distribution of matter (such as a galaxy cluster, cluster of galaxies) between a distant light source and an observer that is capable of bending the light from the source as the light travels toward the observer. This ...
, as of 2018.
[I. Karachentsev et al., F. High et al. ]
Distant and ancient
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versa ...
Retrieved 2019-06-10[
] Brett Salmon of the
Space Telescope Science Institute in Baltimore was the lead scientist of the study of the galaxy.
The galaxy was identified in the
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versa ...
Reionization
In the fields of Big Bang theory and cosmology, reionization is the process that caused matter in the universe to reionize after the lapse of the " dark ages".
Reionization is the second of two major phase transitions of gas in the universe (t ...
Lensing Cluster Survey (RELICS) and companion
S-RELICS Spitzer program and is at the limits of Hubble's detection capabilities.
[(January 11, 2018]
NASA's Great Observatories Team Up to Find Magnified and Stretched Image of Distant Galaxy
Jet Propulsion Laboratory, Pasadena, California, Retrieved 2019-06-10 As a consequence of the effect of a gravitational field of a galaxy cluster of an extremely large size,
SPT-CL J0615-5746, (abbreviated to SPT0615),
[ situated at a distance closer to Earth, light from SPT0615-JD located at a further distance, is amplified and distorted (lensed - ]Einstein
Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory ...
1936; Khvolson 1924; Link 1936) on its motion to the Hubble telescope. This distortion causes the light from the galaxy to arrive as an image lengthened to an arc of about 2 arcseconds long.[Daniel Coe with CLASH (PI Marc Postman) ]
Hubble Spies Most Distant Galaxy Yet
Retrieved 2019-06-10 The observed image is of 13.3 billion years ago, indicating the galaxy existed when the universe was about only 500 million years in existence.
References
Additional reading
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*{{cite book , title=General Relativity, Cosmology and Astrophysics: Perspectives 100 years after Einstein's stay in Prague , edition=illustrated , first1=Jiří , last1=Bičák , first2=Tomáš , last2=Ledvinka , publisher=Springer , year=2014 , isbn=9783319063492 , pages=49–50 , url=https://books.google.com/books?id=Ax0qBAAAQBAJ&pg=PA49
Dwarf galaxies
Pictor (constellation)