Dracarys! Spiral galaxy in constellation Draco helps measure space

Unlike the dragon-filled present “House of the Dragon,” the brilliant warmth from this celestial monster noticed by the Hubble Space Telescope is nothing to be feared. In truth, it is a tremendous useful device that helps gauge the enlargement of the universe.

The spiral galaxy UGC 9391 is situated throughout the constellation Draco (the dragon), a protracted serpentine patch of sky that by no means seems in the southern sky due to its location close to the celestial north pole. Astronomers have peered into this sliver of sky between the Big Dipper and Little Dipper as a result of the sunshine from sure stars inside galaxy UGC 9391 are particular beacons. A lately revealed picture from the Hubble Space Telescope showcases UGC 9391 in opposition to a backdrop of ultra-distant galaxies, and a Sept. 30 image description (opens in new tab) calls it “lonely.”

What it lacks in firm it makes up for in character. According to the European Space Agency’s (ESA) description – it manages the enduring observatory alongside NASA – galaxy UGC 9391 is filled with two fascinating gentle sources: Cepheid variable stars and a Type IA supernova. These assist astronomers work out distances in space. 

This full view of the spiral galaxy UGC 9391 as seen by the Hubble Space Telescope exhibits the remoted galaxy in opposition to a starry backdrop. Bright close by stars have diffraction spikes with background galaxies as distant swirls. (Image credit score: ESA/Hubble & NASA, A. Riess et al)

“This image is from a set of Hubble observations which astronomers used to construct the ‘Cosmic Distance Ladder’ – a set of connected measurements that allow astronomers to determine how far the most distant astronomical objects are,” ESA writes in the outline.


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