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3C 321 is a system of two galaxies rotating around each other. [1]

10 relations: Chandra X-ray Observatory, Comoving and proper distances, Harvard University, Hubble Space Telescope, Jodrell Bank Centre for Astrophysics, MERLIN, Serpens, Spitzer Space Telescope, Supermassive black hole, Very Large Array.

Chandra X-ray Observatory

The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a Flagship-class space observatory launched on STS-93 by NASA on July 23, 1999.

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Comoving and proper distances

In standard cosmology, comoving distance and proper distance are two closely related distance measures used by cosmologists to define distances between objects.

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Harvard University

Harvard University is a private Ivy League research university in Cambridge, Massachusetts.

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Hubble Space Telescope

The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.

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Jodrell Bank Centre for Astrophysics

The Jodrell Bank Centre for Astrophysics at the University of Manchester, is among the largest astrophysics groups in the UK.

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MERLIN

The Multi-Element Radio Linked Interferometer Network (MERLIN) is an interferometer array of radio telescopes spread across England.

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Serpens

Serpens ("the Serpent", Greek Ὄφις) is a constellation of the northern hemisphere.

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Spitzer Space Telescope

The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space telescope launched in 2003 and still operating as of 2018.

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Supermassive black hole

A supermassive black hole (SMBH or SBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses, and is found in the centre of almost all currently known massive galaxies.

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Very Large Array

The Karl G. Jansky Very Large Array (VLA) is a centimeter-wavelength radio astronomy observatory located in central New Mexico on the Plains of San Agustin, between the towns of Magdalena and Datil, ~50 miles (80 km) west of Socorro.

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Redirects here:

3C321, 3c321, Death Star Galaxy, Deathstar galaxy.

References

[1] https://en.wikipedia.org/wiki/3C_321

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