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ASTEROID 472 ROMA OCCULTATION OF Delta Ophiuchi
During the night of 8/9 July 2010 asteroid 472 Roma with a diameter of about 50 km passed in front of Delta Ophiuchi, a naked eye star with a magnitude of 2.7.
Occultation path Occultation path Occultation path (PORTUGAL) The occultation was visible along a path of about 50 km wide, crossing central Europe, Spain and Portugal. Asteroids are generally too small to be resolved by ground-based observatories and asteroid occultations are extremely rare. Precise occultation timings recorded by observers along the path are invaluable for the determination of the asteroid shape and size. A group of Portuguese Amateur Astronomers (APAA) were able to observe this rare event. The several groups were distributed along the occultation path: 1- Rui Gonçalves (team leader) & Juan Gonçalves (positive occultation) 38º 47' 56.0"N, 7º 39' 34.8"W 2- Pedro Ré & Carlos Saraiva (positive occultation) 38° 37' 1.3152"N, 8° 4' 50.0694"W 3- Luís Santo & António Silva + Rui Branco & Filipa Pimentel (positive occultation ?) 38° 30' 17.77"N, 7° 35' 44.35"W 4- João Cruz & Sérgio Bernardino (positive occultation) 38°59'19.74"N, 7°12'21.24"W David Dunham (IOTA) organized part of these occultation observations in Spain and Portugal. Several observing teams were able to use portable setups provided by David to record the event. Wide-field Chart Finder Chart Finder Chart Imaging setup Takahashi FS60C QHY5 camera Imaging setup QHY5 rocks Will this thing work? OCCULTATION VIDEO (WMV FILE 500Kb) IOTA REPORT FULL SIZE (LiMovie) Portuguese Team. From left to right: Luís Santo, Sérgio Bernardino, Rui Gonçalves, Carlos Saraiva, Pedro Ré, Juan Gonçalves, David W. Dunham, António Silva, João Cruz, David Dunham's wife (photo by Luís Santo). |