For seeing the galaxys go on the image with the mouse.
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The Virgo Cluster is a gigantic galaxy cluster, relatively near us, composed of about 3000 galaxys at about 60 million of light years. The upper image show the central region of the cluster, with the big elliptical M87, M84 and M86. In the hi-res scansion of the slide there are a lot of galaxys that go lost in the medium resolution version, so I've enlarged them in the bottom image.
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| Optics | Pentax 75 apochromatic refractor |
| Focal Lenght | 500 mm |
| Focal Ratio | f/6,7 |
| Exposure Time | 45 min exposure |
| Film | Kodak E200 |
| Developement sensibility | 320 ISO |
| Location | Capanne di Cosola (AL, on the Appenninus, Italy) at 1500m |
| Date and time of exposure start | 14 may 2002, 21.27 UT |
| Mount | Gemini G41 |
| Tracking | ST4 |
| Temperature and humidity | T=+7°C, RH=59% |
| Notes | - |
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