Leserbilder Astronomie: First color image of comet 67P
© José J. Chambó Bris
Image of the periodic comet 67P/Churyumov-Gerasimenko taken on June 24, 2015 entering to inner Solar Sistem with a brightness still near magnitude 14,5. I think is the first taken in color. The geometry of this apparition of comet 67P is very unfavorable for be observed from Earth being always at low altitude above horizon. In spite of difficulties to take the image it shows a tail of 5 arcminutes in length, and with more contrast a greenish envelope of 1,5 arcminutes diameter can be detected around a small inner coma. It is whitish and very condensed. Within it the Rosetta probe orbits the comet nucleus.
Daten zum Bild
| Objekt | 67P/Churyumov-Gerasimenko |
| Ort | Siding Spring, Australia |
| Zeitpunkt | UT |
| Kamera | FLI PL09000 |
| Teleskop/Objektiv | Planewave 20" CDK f/4.4 reflector |
| Montierung | Planewave Ascension 200HR |
| Belichtungszeit | L: 1 × 120 s Bin1 + RGB: 1 x 60 s Bin2 |
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