M101 shares this modern telescopic field of view with more distant background galaxies, foreground stars within the Milky Way, and a companion dwarf galaxy NGC 5474 (lower right). The colors of the Milky Way stars can also be found in the starlight from the large island universe.

One result is that M101, also called the Pinwheel Galaxy, has several extremely bright star-forming regions (called HII regions) spread across its spiral arms. M101 is so large that its immense gravity distorts smaller nearby galaxies.

Apr 15, 2011 · Explanation: Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog, but definitely not one of the least. About 170,000 light-years across, this galaxy is enormous, almost twice the size of our own Milky Way galaxy.

Aug 4, 2004 · These waves compress existing gas and cause star formation. One result is that M101, also called the Pinwheel Galaxy, has several extremely bright star-forming regions (called HII regions) spread across its spiral arms. M101 is so large that its immense gravity distorts smaller nearby galaxies.

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on, counterclockwise Intermediate spiral galaxy located 21 million light-years (6.4 megaparsecs) [3] from Earth in the constellation Ursa Major.

Feb 18, 2024 · Here we see Messier 1010, well known as the Pinwheel galaxy. It is normally quit faint, but a massive galaxy of over a trillion stars. In this widefield galaxy image, it is framed and exposed to show the deeper field of so many distance galaxies of all shapes, sizes, classifications, including classic spirals, ellipticals, dense galaxy clusters, interacting galaxies and lenticular ones, all ...

May 13, 2021 · In direzione della costellazione dell’Orsa Maggiore brilla M101, soprannominata galassia “Girandola”. Un gigantesco disco a spirale di stelle, polveri e gas grande quasi il doppio della nostra Via Lattea, con i suoi 170000 anni luce di diamtero.

M101 was also one of the original spiral nebulae observed by Lord Rosse's large 19th century telescope, the Leviathan of Parsontown. M101 shares this modern telescopic field of view with spiky foreground stars within the Milky Way, and more distant background galaxies.

May 27, 2020 · The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs)[3] away from Earth in the constellation Ursa Major. Tekkies: Celestron C11 EdgeHd (Baader optimized), QHY 367c pro on Eq8 pro. 51x120"

Perusing through Astronomy Picture of the Day (APOD) on the night I was imaging the Comet Garradd-M71 rendezvous, I noticed that there is a new supernova discovered in spiral galaxy M101, originally dubbed PTY11kly, now named SN 2011fe.