dwarf spheroidal galaxy


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dwarf spheroidal galaxy

[¦dwȯrf sfir¦ȯid·əl ′gal·ik·sē]
(astronomy)
One of the smallest and faintest of the dwarf galaxies, with an effective radius of 200-1000 parsecs and an absolute visual magnitude between -8 and -13.
References in periodicals archive ?
The stars were actually much farther away and part of the dwarf spheroidal galaxy dubbed Bedin 1.
Our next stop is the Fornax Dwarf Spheroidal Galaxy (Fornax dSph), a Milky Way satellite at a distance of 470,000 light-years.
The HSC camera allowed the team to distinguish an overdensity of stars, which turned out to be a faint dwarf spheroidal galaxy.
Some specific topics explored include the supermassive black hole in the Milky Way, optical to near-infrared light curves of classical Cepheids, young stellar objects in the large Magellanic cloud, dwarf Cepheids in the Carina Dwarf Spheroidal Galaxy, and helium in the Galactic bulge.
Leo I is a dwarf spheroidal galaxy discovered in 1950 by Albert George Wilson on a photographic plate taken with the 48-inch Schmidt camera at Palomar Observatory.
A further object for confusion is Leo I--a dwarf spheroidal galaxy. It is about magnitude 9.8, and lies close to Regulus, only 12 arcminutes away from Leo's brightest star.
Based on this evidence, "I immediately jumped to the conclusion that this was a dwarf spheroidal galaxy," Irwin says.
Due to these, scientists have determined that it is a dwarf spheroidal galaxy, according to a report published in the journal (https://academic.oup.com/mnrasl/article/484/1/L54/5288002) Monthly Notices of the Royal Astronomical Society: Letters.
A rather more challenging object for visual observing is UGC 10822, also known as the Draco dwarf spheroidal galaxy. It has rather low surface brightness making a dark site essential, and it may be mistaken for a cluster.
SDG is categorized as a dwarf spheroidal galaxy, the kind that is ideal for investigating the properties of dark matter since these galaxies
The most obvious is the massive Sagittarius Stream: These broad tidal tails of what was once a dwarf spheroidal galaxy wrap around the poles of the Milky Way.