File:First ESO image of new comet 1998 P1 - Eso9838a.jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
![File:First ESO image of new comet 1998 P1 - Eso9838a.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1f/First_ESO_image_of_new_comet_1998_P1_-_Eso9838a.jpg/600px-First_ESO_image_of_new_comet_1998_P1_-_Eso9838a.jpg?20230209152923)
Size of this preview: 600 × 599 pixels. Other resolutions: 240 × 240 pixels | 481 × 480 pixels | 956 × 955 pixels.
Original file (956 × 955 pixels, file size: 529 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Captions
Add a one-line explanation of what this file represents
Summary[edit]
DescriptionFirst ESO image of new comet 1998 P1 - Eso9838a.jpg |
English: The positive image shown here has been reproduced from a 2-min exposure with the DFOSC instrument through a B (blue) filter on August 11, 1998 at 23:40 UT. This is a 120-sec exposure through B-filtre with DFOSC on Danish 1.54-m telescope. Only a few cosmetic corrections. The original frame has 1911 x 1911 pixels which corresponds to 12.9 x 12.9 arcmin on the sky. North is up, East to the left.
The coma diameter is at least 6 arcmin and is almost spherical, with a slight asymmetry on the tailside. A very thin and quite faint plasma-tail points in the lower left direction (position angle = 117° = "8 o'clock"), which is most likely close to the radial direction opposite to the Sun (but this can only be confirmed when a first orbit has been computed). The visible plasma tail extends at least 6.5 arcmin (beyond the field of view) and is produced by the emission of light from CO + (carbon monoxide ions) originating from sublimating ice of the cometary nucleus. The presence of this tail indicates that the comet is probably less than 1.5 AU (about 225 million km) from the Sun. |
Date | |
Source | https://www.eso.org/public/images/eso9838a/ |
Author | ESO |
Licensing[edit]
![]() |
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
![]() ![]() This file is licensed under the Creative Commons Attribution 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:29, 9 February 2023 | ![]() | 956 × 955 (529 KB) | C messier (talk | contribs) | Uploaded a work by ESO from https://www.eso.org/public/images/eso9838a/ 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 it.wikipedia.org
- Usage on www.wikidata.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.
Image title |
|
---|---|
Source | European Southern Observatory |
Credit/Provider | ESO |
Short title |
|
Usage terms |
|
Date and time of data generation | 00:00, 12 August 1998 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Keywords | Comet 1998 P1 |
IIM version | 4 |