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| software for the pocket pc | |
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| Pocket PC HOME | |
 Okinawa, Ryukyu | |
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©2008 alfcen | |
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| Application: | CHOSA (Japanese for Survey) |
| Latest version: | Beta 0.90 |
| Language: | English |
| Development environment: | Basic4ppc |
| VGA-aware: | yes |
| Licence: | Donationware |
| Protection: | 60-seconds reminder |
| Tested with: | iPAQ hx210, iPAQ h2200, Asus A636N, Dell Axim X5 |
| Manual: | none |
"Chosa" sends a query with selectable parameters to NASA's SkyView server which will assemble an image
from the Digitized Sky Survey and sends it back. All thus downloaded images are 480 x 480 pixels wide
irrespective of the specified field of view. To retrieve your first image, enter an object designation into the
topmost textbox, such as 'M42' for the Great Orion Nebula using default image parameters. Downloaded
images will be stored in an archive, i.e, into a subdirectory named 'dss', alongside an index file containing
image parameters for offline viewing.
Chosa has a database of popular stars, nebulae and more from which an object of interest can be picked and automatically placed into the Control Panel.
You can query objects using their designation or enter right ascension and declination coordinates in decimal format. A sexagesimal input panel will assist calculating decimal values. Typical designation examples are:
To simulate the view of an object in your telescope, enter telescope and eyepiece parameters and Chosa will calculate the field of view of your optical configuration.
Keep the field of view as small as possible to minimize download time. All images are of the same pixel and similar file size, however, NASA's server will have to assemble more fragments to build a wide view which does take time whilst consuming unneccessary server activities. It is recommended to stay within 3 degrees.
The use of Chosa provides basic familiarity with astronomy.
Chosa has a database of popular stars, nebulae and more from which an object of interest can be picked and automatically placed into the Control Panel.
You can query objects using their designation or enter right ascension and declination coordinates in decimal format. A sexagesimal input panel will assist calculating decimal values. Typical designation examples are:
M42, Andromeda Galaxy, NGC1999, Ring Nebula, Sirius, alf per, HD40859, Galactic Center
To simulate the view of an object in your telescope, enter telescope and eyepiece parameters and Chosa will calculate the field of view of your optical configuration.
Keep the field of view as small as possible to minimize download time. All images are of the same pixel and similar file size, however, NASA's server will have to assemble more fragments to build a wide view which does take time whilst consuming unneccessary server activities. It is recommended to stay within 3 degrees.
The use of Chosa provides basic familiarity with astronomy.
1. Image manipulations (magnify, invert, flip, rotate, etc)
2. Dynamic x2, x4 or x8 loupe
3. Detailed source image data viewer
4. Image preview in archive
5. Object database
- Named stars
- Designated stars
- Binary stars
- Variable stars
- Exoplanet Stars
- Messier objects
- NGC objects
- IC objects
2. Dynamic x2, x4 or x8 loupe
3. Detailed source image data viewer
4. Image preview in archive
5. Object database
- Named stars
- Designated stars
- Binary stars
- Variable stars
- Exoplanet Stars
- Messier objects
- NGC objects
- IC objects
| Installer PPC: | download (500KB) |
| Installer desktop: | download (500KB) |
| PPC requirement: | .NET Compact Framework 2.0 |
| Recommended storage: | main memory or storage card |
| Requirements: | online connection |