File:Caldwell 33 - 1.jpg
![File:Caldwell 33 - 1.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Caldwell_33_-_1.jpg/800px-Caldwell_33_-_1.jpg?20200223200504)
Original file (1,494 × 753 pixels, file size: 761 KB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionCaldwell 33 - 1.jpg |
English: Caldwell 33 is part of an extensive supernova remnant known as the Veil Nebula (or the Cygnus Loop). Caldwell 33 is often called the Eastern Veil, and includes regions also cataloged as NGC 6992 and NGC 6995. The opposite side of the Veil Nebula, the Western Veil, is Caldwell 34.
The Veil Nebula is the cosmic shrapnel left over from a star that exploded several thousand years ago. It lies within our own galaxy, about 2,000 light-years away in the Cygnus constellation. The entire Veil Nebula is 110 light-years across, covering an area of sky that’s six times bigger than that covered by the full moon. This image combines observations taken with Hubble's Wide Field and Planetary Camera 2 in November 1994 and August 1997. In this tiny piece of Caldwell 33, rope-like filaments of gas intertwine and glow as the fast-moving debris from the supernova explosion plows into the surroundings and creates shock fronts. The sharper-looking filaments correspond to an edge-on view of a shock front, while the diffuse ones correspond to a face-on view. Only the most massive stars end their lives as a supernova, but these explosions are responsible for creating all naturally occurring chemical elements heavier than iron. Many elements, such as copper, mercury, gold, iodine and lead, were forged in these violent events. The expanding shells of supernova remnants mix with other materials in the galaxy and become the raw materials for new generations of stars and planets. The Veil Nebula is a prototypical middle-aged supernova remnant. It is an ideal laboratory for studying the physics of supernova remnants because of its unobscured location in our galaxy, its relative closeness, and its large size. Astronomers used Hubble to take these observations of the Veil to better understand the shapes and motions of this and other supernova remnants. Hubble’s observations have also helped refine the Veil’s distance and age. The Veil Nebula was found by astronomer William Herschel in 1784. This was followed up by Williamina Fleming’s discovery of a fainter portion of the nebula, referred to as Pickering’s Triangle, in 1904. The Veil Nebula is best viewed in early fall from the Northern Hemisphere (early spring in the Southern Hemisphere). As a magnitude-8 object, the nebula is not visible to the naked eye, but it can be seen through a telescope or even binoculars under a dark sky. A nebula filter will make the Veil easier to spot and help to pull out its wispy features. For more information about Hubble’s observations of Caldwell 33, see: hubblesite.org/contents/news-releases/2007/news-2007-30.html spacetelescope.org/news/heic0006/ Credit: NASA, ESA and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration; Acknowledgment: J. Hester (Arizona State University) For Hubble's Caldwell catalog site and information on how to find these objects in the night sky, visit: www.nasa.gov/content/goddard/hubble-s-caldwell-catalog |
Date | |
Source | https://www.flickr.com/photos/144614754@N02/49200184032/ |
Author | NASA Hubble |
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- 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.
![]() |
This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/49200184032 (archive). It was reviewed on 23 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
23 February 2020
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 20:05, 23 February 2020 | ![]() | 1,494 × 753 (761 KB) | Killarnee (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on fr.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.
Orientation | Normal |
---|---|
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 12:01, 30 July 2007 |
Y and C positioning | Centered |
Exif version | 2.31 |
Date and time of digitizing | 12:01, 30 July 2007 |
Meaning of each component |
|
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Image width | 1,494 px |
Image height | 753 px |
Bits per component |
|
Height | 753 px |
Width | 1,494 px |
Pixel composition | RGB |
Number of components | 3 |
Date metadata was last modified | 08:01, 30 July 2007 |
IIM version | 2 |