| Designation |
NGC 4755, The Jewel Box |
| Object type |
Open star cluster |
| Description |
This is a sight to behold even in
the smallest telescope. When taking this picture, special care was
taken not to overexpose any of the stars in order to preserve star color.
Very short exposures were needed, resulting in a somewhat noisy
background. |
| Exposure |
RGB 2:2:2 min @ -15°C, all
individual exposures were 5 s each |
| Camera |
SBIG ST-10XE + SBIG CFW-8 + SBIG
(CS) RGB filterset |
| Optics |
Astro-Physics AP155EDFS (prime
focus - f/7.2) |
| Mount |
Astro-Physics AP1200GTO |
| Software |
MaxIm DL/CCD, Adobe
Photoshop 6.0 |
| Location - Date - Time |
San Esteban (Chile) - 02May2003 -
02:30 UTC |
| Conditions |
Transparency 6, Seeing 5, Temperature
+15°C |
