Size of this preview: 800 × 489 pixels. Other resolutions: 320 × 196 pixels | 640 × 391 pixels | 1,024 × 626 pixels | 1,280 × 782 pixels | 3,344 × 2,043 pixels.
Original file (3,344 × 2,043 pixels, file size: 2.08 MB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionDim, but still distinct (potw2405a).jpg |
English: This image of the spiral galaxy UGC 11105 is not as bright and vivid as some other Hubble Pictures of the Week. This softly luminous galaxy — lying in the constellation Hercules, about 110 million light-years from Earth — seems outshone by the sparkling foreground stars that surround it. The type II supernova which took place in this galaxy in 2019, while no longer visible in this image, definitely outshone the galaxy at the time! To be more precise, UGC 11105 has an apparent magnitude of around 13.6 in the optical light regime (this image was created using data that covers the heart of the optical regime, in addition to ultraviolet data). Astronomers have different ways of quantifying how bright celestial objects are, and apparent magnitude is one of them.Firstly, the ‘apparent’ part of this quantity refers to the fact that apparent magnitude only describes how bright objects appear to be from Earth, which is not the same thing as measuring how bright they actually are. For example, in reality the variable star Betelgeuse is about 21 000 times brighter than our Sun, but because the Sun is much, much closer to Earth, Betelgeuse appears to be vastly less bright than it. The ‘magnitude’ part is a little harder to describe, because the magnitude scale does not have a unit associated with it, unlike, for example, mass, which we measure in kilograms, or length, which we measure in metres. Magnitude values only have meaning relative to other magnitude values. Furthermore, the scale is not linear, but is a type of mathematical scale known as ‘reverse logarithmic’, which also means that lower-magnitude objects are brighter than higher-magnitude objects. As an example, UGC 11105 has an apparent magnitude of around 13.6 in the optical, whereas the Sun has an apparent magnitude of about -26.8. Accounting for the reverse logarithmic scale, this means that the Sun appears to be about 14 thousand trillion times brighter than UGC 11105 from our perspective here on Earth, even though UGC 11105 is an entire galaxy! The faintest stars that humans can see with the naked eye come in at about sixth magnitude, with most galaxies being much dimmer than this. Hubble, however, has been known to detect objects with apparent magnitudes up to the extraordinary value of 31, so UGC 11105 does not really present much of a challenge. [Image Description: A spiral galaxy, with two prominent arms that are tightly wound around the brighter core. The arms disperse into a wide halo of stars and dust at their ends, giving the galaxy an oval shape. It is flanked by a number of bright stars in the foreground, each with a little cross over it due to light diffraction, and some distant background galaxies as well.] |
Date | 29 January 2024 (upload date) |
Source | Dim, but still distinct |
Author | ESA/Hubble & NASA, R. J. Foley (UC Santa Cruz) |
Other versions |
|
Licensing
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:
|
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble
- 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.
image/jpeg
2,043 pixel
3,344 pixel
2,185,229 byte
cc49baf6469cb892386dd34fbc9b1abd457dc10f
29 January 2024
1o5egoo1sq939nbvug7b6q0onw95oclyunjaqvjllcpaor6yl2
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 09:00, 29 January 2024 | 3,344 × 2,043 (2.08 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://cdn.esahubble.org/archives/images/large/potw2405a.jpg via Commons:Spacemedia |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on de.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Source | ESA/Hubble |
---|---|
Credit/Provider | ESA/Hubble & NASA, R. J. Foley (UC Santa Cruz) |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 29 January 2024 |
Software used | Adobe Photoshop 25.3 (Windows) |
File change date and time | 17:22, 23 January 2024 |
Date and time of digitizing | 12:55, 10 October 2023 |
Date metadata was last modified | 18:22, 23 January 2024 |
Unique ID of original document | xmp.did:b894035d-5ab2-134e-af10-b7adaec94502 |
Keywords | UGC 11105 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |