File:Single arm galaxy (49704129827).jpg
Original file (3,815 × 4,004 pixels, file size: 14.9 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionSingle arm galaxy (49704129827).jpg |
NGC 4618 was discovered on 9 April 1787 by the German-British astronomer, Wilhelm Herschel, who also discovered Uranus in 1781. Only a year before discovering NGC 4618, Herschel theorised that the “foggy” objects astronomers were seeing in the night sky were likely to be large star clusters located much further away then the individual stars he could easily discern. Since Herschel proposed his theory, astronomers have come to understand that what he was seeing was a galaxy. NGC 4618, classified as a barred spiral galaxy, has the special distinction amongst other spiral galaxies of only having one arm rotating around the centre of the galaxy. Located about 21 million light-years from our galaxy in the constellation Canes Venatici, NGC 4618 has a diameter of about one third that of the Milky Way. Together with its neighbour, NGC 4625, it forms an interacting galaxy pair, which means that the two galaxies are close enough to influence each other gravitationally. These interactions may result in the two (or more) galaxies merging together to form a new formation, such as a ring galaxy. Credits: ESA/Hubble & NASA, I. Karachentsev; <a href="https://creativecommons.org/licenses/by/4.0/" rel="noreferrer nofollow">CC BY 4.0</a> |
Date | |
Source | Single arm galaxy |
Author | European Space Agency |
Licensing
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This image was originally posted to Flickr by europeanspaceagency at https://flickr.com/photos/37472264@N04/49704129827. It was reviewed on 3 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
3 December 2020
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current | 19:07, 3 December 2020 | 3,815 × 4,004 (14.9 MB) | Eyes Roger (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Date and time of data generation | 06:00, 23 March 2020 |
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Short title | Single Arm Galaxy |
Credit/Provider | ESA/Hubble & NASA, I. Karachents |
Source | ESA/Hubble |
Image title | NGC 4618 was discovered on 9 April 1787 by the German-British astronomer, Wilhelm Herschel, who also discovered Uranus in 1781. Only a year before discovering NGC 4618, Herschel theorised that the “foggy” objects astronomers were seeing in the night sky were likely to be large star clusters located much further away then the individual stars he could easily discern. Since Herschel proposed his theory, astronomers have come to understand that what he was seeing was a galaxy. NGC 4618, classified as a barred spiral galaxy, has the special distinction amongst other spiral galaxies of only having one arm rotating around the centre of the galaxy. Located about 21 million light-years from our galaxy in the constellation Canes Venatici, NGC 4618 has a diameter of about one third that of the Milky Way. Together with its neighbour, NGC 4625, it forms an interacting galaxy pair, which means that the two galaxies are close enough to influence each other gravitationally. These interactions may result in the two (or more) galaxies merging together to form a new formation, such as a ring galaxy. |
Publisher | ESA/Hubble |
Usage terms |
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JPEG file comment | NGC 4618 was discovered on 9 April 1787 by the German-British astronomer, Wilhelm Herschel, who also discovered Uranus in 1781. Only a year before discovering NGC 4618, Herschel theorised that the “foggy” objects astronomers were seeing in the night sky were likely to be large star clusters located much further away then the individual stars he could easily discern. Since Herschel proposed his theory, astronomers have come to understand that what he was seeing was a galaxy. NGC 4618, classified as a barred spiral galaxy, has the special distinction amongst other spiral galaxies of only having one arm rotating around the centre of the galaxy. Located about 21 million light-years from our galaxy in the constellation Canes Venatici, NGC 4618 has a diameter of about one third that of the Milky Way. Together with its neighbour, NGC 4625, it forms an interacting galaxy pair, which means that the two galaxies are close enough to influence each other gravitationally. These interactions may result in the two (or more) galaxies merging together to form a new formation, such as a ring galaxy. |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CC (Windows) |
File change date and time | 15:48, 19 September 2019 |
Y and C positioning | Centered |
Exif version | 2.31 |
Date and time of digitizing | 17:07, 30 August 2019 |
Meaning of each component |
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Supported Flashpix version | 1 |
Color space | Uncalibrated |
IIM version | 4 |
Keywords | NGC 4618 |
Bits per component |
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Height | 4,004 px |
Width | 3,815 px |
Pixel composition | RGB |
Number of components | 3 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
Type of media | Observation |
Date metadata was last modified | 17:48, 19 September 2019 |
Unique ID of original document | xmp.did:ff414df3-65eb-cd45-b55e-d20cd54ad1d9 |