Antilhue - Chile
Antilhue - Chile
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| Designation | M 100 (also NGC 4321 - top), NGC 4312 (bottom) |
| Constellation | Coma Berenices (Com) |
| Description | The face-on spiral Messier 100
dominates this field full of Virgo group background galaxies. Many pink
starforming regions dot its blueish spiral arms. The Hubble Space
Telescope was able to resolve Cepheid variables in M100 which led to an
accurate distance measurement of 56 million lightyears. On the left (east)
of M100 is the mag 14.3 lenticular galaxy NGC 4328: a diminute, reddish jet can just be seen
emanating from its eastern side. The spiral galaxy at bottom center is NGC
4312. North is up in this approx. 30 arcmin wide field.
Look here for a close-up image of M 100. |
| Exposure | LRGB 60:36:36:36 min @ -15°C, all 1x1 |
| Camera | SBIG ST-10XE selfguided, CFW-8, SBIG (CS) LRGB Filterset |
| Optics | Astro-Physics AP155EDFS @ f/7.2 (prime focus) |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, Sigma Beta 10, Adobe Photoshop 6.0 |
| Location - Date - Time | San Esteban (Chile) - 07May2003 - 02:00 UTC |
| Conditions | Transparency 5, Seeing 6, Temperature +15°C, high cloud passing through |
