by APOD Robot » Thu Jul 27, 2023 4:09 am
Galaxies in the River
Explanation: Large galaxies grow by eating small ones.
Even our own galaxy engages in a sort of galactic
cannibalism, absorbing small galaxies that are too close and are
captured by the Milky Way's gravity. In fact, the
practice is common in the universe and illustrated by this striking pair of interacting galaxies from the banks of the southern constellation
Eridanus,
The River. Located over 50 million light years away, the large, distorted spiral NGC 1532 is seen locked in a gravitational struggle with dwarf galaxy NGC 1531, a struggle the smaller galaxy
will eventually lose. Seen nearly edge-on, spiral NGC 1532 spans about 100,000 light-years.
The merging galaxies are captured in this sharp image from the Dark Energy Camera mounted on the National Science Foundationâs Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile. The NGC 1532/1531 pair is thought to be similar to the well-studied system of face-on spiral and small companion
known as M51.
[url=https://apod.nasa.gov/apod/ap230727.html] [img]https://apod.nasa.gov/apod/calendar/S_230727.jpg[/img] [size=150]Galaxies in the River[/size][/url]
[b] Explanation: [/b] Large galaxies grow by eating small ones. [url=https://apod.nasa.gov/apod/ap050529.html]Even our own[/url] galaxy engages in a sort of galactic [url=http://www.cosmotography.com/images/galaxy_cannibalism.html] cannibalism[/url], absorbing small galaxies that are too close and are [url=http://arxiv.org/abs/astro-ph/0407566]captured[/url] by the Milky Way's gravity. In fact, the [url=https://www.nasa.gov/image-feature/goddard/2017/hubble-catches-a-galaxy-duo-by-the-hare]practice is common[/url] in the universe and illustrated by this striking pair of interacting galaxies from the banks of the southern constellation [url=http://www.hawastsoc.org/deepsky/eri/index.html]Eridanus[/url], [url=https://apod.nasa.gov/apod/ap160102.html]The River[/url]. Located over 50 million light years away, the large, distorted spiral NGC 1532 is seen locked in a gravitational struggle with dwarf galaxy NGC 1531, a struggle the smaller galaxy [url=https://apod.nasa.gov/apod/ap080619.html]will eventually lose[/url]. Seen nearly edge-on, spiral NGC 1532 spans about 100,000 light-years. [url=https://noirlab.edu/public/news/noirlab2321/]The merging galaxies are captured[/url] in this sharp image from the Dark Energy Camera mounted on the National Science Foundationâs Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile. The NGC 1532/1531 pair is thought to be similar to the well-studied system of face-on spiral and small companion [url=https://apod.nasa.gov/apod/ap220902.html]known as M51[/url].
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