Antilhue - Chile
Antilhue - Chile
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| Designation | C/2001 Q4 (NEAT) |
| Object type | Comet |
| Coordinates at exposure time | 03h18min -64°27' (Reticulum) |
| Description | Still brightening towards its
expected maximum of mag 2.5 around May 8th 2004, this fine comet is
already a naked eye object and shows a short tail when observing with 7x50
binoculars. The CCD image above reveals a real extension of the tail
of more than 3 degrees as well as an interesting disturbance. The
inset image illustrates the pale green-blue color of the comet head.
C/2001 Q4 was only 0.64 AU (astronomical unit = distance from sun to earth)
away when these pictures were taken.
The fuzzy object left of center is NGC 1313, a fine barred spiral galaxy. The field of view is 4° wide. |
| Exposure | Lum 4 x 45s - RGB 45:45:45s - both @ -18°C - 2x2 - unguided |
| Camera | SBIG ST-10XE + SBIG CFW-8 with Astrodon Tru-Balance filter set. |
| Optics | Sun 200mm f/3.5 telephoto lens |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, Sigma Pre Beta 11, Adobe Photoshop 6.0 |
| Location - Date - Time | San Esteban (Chile) - 18Apr2004 - 23:38 UTC |
| Conditions | Transparency 7, Seeing 6, Temperature +13°C |
