File:Spiral Snapshot (potw2215a).jpg
Original file (4,086 × 3,948 pixels, file size: 8.69 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionSpiral Snapshot (potw2215a).jpg |
English: The spiral galaxy M91 fills the frame of this Wide Field Camera 3 observation from the NASA/ESA Hubble Space Telescope. M91 lies approximately 55 million light-years from Earth in the constellation Coma Berenices and— as is evident in this image — is a barred spiral galaxy. While M91’s prominent bar makes for a spectacular galactic portrait, it also hides an astronomical monstrosity. Like our own galaxy, M91 contains a supermassive black hole at its centre. A 2009 study using archival Hubble data found that this central black hole weighs somewhere between 9.6 and 38 million times as much as the Sun. Whilst archival Hubble data allowed astronomers to weigh M91’s central black hole, more recent observations have had other scientific aims. This observation is part of an effort to build a treasure trove of astronomical data exploring the connections between young stars and the clouds of cold gas in which they form. To do this, astronomers used Hubble to obtain ultraviolet and visible observations of galaxies already seen at radio wavelengths by the ground-based Atacama Large Millimeter/submillimeter Array (ALMA). Observing time with Hubble is a highly valued, and much sought-after, resource for astronomers. To obtain data from the telescope, astronomers first have to write a proposal detailing what they want to observe and highlighting the scientific importance of their observations. Theseproposals are then anonymised and judged on their scientific merit by a variety of astronomical experts. This process is incredibly competitive: following Hubble’s latest call for proposals, only around 13% of the proposals were awarded observing time. Are you interested in finding out what Hubble is observing right now? You can follow the space telescope’s observations in real time at this link. |
Date | |
Source | https://esahubble.org/images/potw2215a/ |
Author | ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team |
Licensing
[edit]ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
Notes:
|
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 07:04, 2 September 2023 | 4,086 × 3,948 (8.69 MB) | C messier (talk | contribs) | full size | |
20:47, 30 August 2023 | 1,280 × 1,237 (293 KB) | Laensom (talk | contribs) | Uploaded a work by ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team from https://esahubble.org/images/potw2215a/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ja.wikipedia.org
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.
Source | ESA/Hubble |
---|---|
Credit/Provider | ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 11 April 2022 |
Software used | Adobe Photoshop 23.2 (Windows) |
File change date and time | 18:47, 23 March 2022 |
Date and time of digitizing | 13:14, 22 February 2022 |
Date metadata was last modified | 19:47, 23 March 2022 |
Unique ID of original document | xmp.did:0a0b8cd9-2c45-ad45-9249-eef056a6ce6f |
Keywords | NGC 4548 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |