File:NH-Pluto-Atmosphere-ArtistConcept-20140911.jpg
Original file (1,041 × 650 pixels, file size: 288 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionNH-Pluto-Atmosphere-ArtistConcept-20140911.jpg |
English: Sep. 11, 2014 - Atmosphere of Pluto (artist concept)
Artist’s impression of Pluto, with its wispy atmosphere. Artist’s impression of Pluto, with its wispy atmosphere. Data from New Horizons’ Alice ultraviolet spectrograph will answer a full range of questions about the composition and structure of that atmosphere. Randy Gladstone New Horizons Co-Investigator
What is Pluto’s atmosphere like? It seems like I’ve been wondering about that for decades! We’ve known so little for so long about Pluto’s atmosphere – other than it’s low-pressure, made mostly of molecular nitrogen (with a little methane and carbon monoxide mixed in) and may be quite extended – it’s nice to realize that we’ll know a whole lot more after New Horizons visits in summer 2015. My professional interests on New Horizons lie with Pluto’s upper atmosphere – what it’s made of, how it interacts with space, and how it is processed by sunlight into different gases and aerosols. A problem in planning atmospheric observations for New Horizons during the flyby is that we really don’t know what to expect. Only a few models have been made that try to predict the composition of Pluto’s atmosphere, and they don’t agree very much with each other because of the many present uncertainties. So our plans generally include a lot of survey-type observations, where we try not to assume too much about what we will detect, but are ready for anything. The best example of this is the Pluto solar occultation observation. The Alice ultraviolet spectrograph will watch the Sun set (and then rise again) as New Horizons flies through Pluto’s shadow, about an hour after closest approach. Watching how the different colors of sunlight fade (and then return) as New Horizons enters (and leaves) the shadow will tell us nearly all we could ask for about composition (all gases have unique absorption signatures at the ultraviolet wavelengths covered by Alice) and structure (how the absorption features vary with altitude will tell us about temperatures, escape rates and possibly about dynamics and clouds). When the New Horizons data start coming down, these are the data I’ll be waiting for the most!
|
Date | |
Source | http://www.nasa.gov/sites/default/files/thumbnails/image/nh-atmosphere.jpg |
Author | NASA |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:35, 11 July 2015 | 1,041 × 650 (288 KB) | Drbogdan (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 sr.wikipedia.org
- Usage on zh.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.
Width | 919 px |
---|---|
Height | 574 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 220 dpi |
Vertical resolution | 220 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 13:21, 19 March 2015 |
Exif version | 2.21 |
Color space | Uncalibrated |
Unique ID of original document | 5048ED14AA54950A67275C214E51C571 |
Date and time of digitizing | 09:18, 19 March 2015 |
Date metadata was last modified | 09:21, 19 March 2015 |