DLA0817g
DLA0817g, also known as the Wolfe Disk, is a galaxy located in the constellation Cancer, from Earth.

Discovered in 2017 using observations made with the Atacama Large Millimeter Array (ALMA), it was studied with the Karl G. Jansky Very Large Array (JVLA) observatory and the Hubble Space Telescope.

It is a large rotating disc galaxy, with a mass of approximately 72 billion solar masses, dating back to an early age in the life of the universe, approximately 1.5 billion years after the Big Bang. This contradicts previous models that describe the formation and evolution of galaxies and that foresee a gradual and progressive increase in galactic dimensions.

This galaxy has other characteristics that appear early compared to its age. Its rotational speed, approximately , is also comparable to that of a mature galaxy like our Milky Way galaxy. It is nicknamed the Wolfe Galaxy or the Wolfe Disc in honor of Arthur M. Wolfe, an American astrophysicist, one of the discoverers of the Sachs-Wolfe effect.
Q8849
constellation Cancer
CEL
Q725364
Atacama Large Millimeter Array (ALMA)
MISC
Q461382
Karl G. Jansky Very Large Array (JVLA)
MISC
Q2513
Hubble Space Telescope
MISC
Q1371025
disc galaxy
Concept
Q323
Big Bang
Concept
Q321
Milky Way
Concept
Q302379
Arthur M. Wolfe
PER
Q1617362
Sachs-Wolfe effect
Concept
Q95149919
DLA0817g
LOC
2017-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2017
DATE
+0817^^http://www.w3.org/2001/XMLSchema#decimal
0817
NUMBER
+72^^http://www.w3.org/2001/XMLSchema#decimal
72
NUMBER
+1.5^^http://www.w3.org/2001/XMLSchema#decimal
1.5
NUMBER
constellation
time of discovery or invention
discoverer or inventor