Physics
Scientific paper
Oct 1908
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1908natur..78..539c&link_type=abstract
Nature, Volume 78, Issue 2031, pp. 539 (1908).
Physics
Scientific paper
LONG-EXPOSURE photographs of comet c 1908 have been obtained with the 30-inch reflector on September 6, 7, 8, 14, 17, 18, 21, 25, and 26, the exposure ranging from forty-five minutes to an hour (except on September 14 and 25, when exposures of twenty minutes were made). The comet possesses a bright tail, the structure of which is well shown in the photographs, to a distance of 1½° from the head. The appearance of the tail changes greatly from night to night, so that photographs taken at much shorter intervals than a day are desirable in order to trace the alterations in structure continuously. With this in view, on September 17 three photographs, with exposures of forty-five minutes, were taken at intervals of approximately an hour (reckoned from the middle of each exposure); decided change had occurred between the first and last photographs, and the middle photograph served to show how the transition had taken place. Efforts are being-made to obtain a series of photographs at short intervals extending throughout a night, but so far the full moon and the weather have prevented this.
No associations
LandOfFree
Photographs of Comet c 1908 at the Royal Observatory, Greenwich does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photographs of Comet c 1908 at the Royal Observatory, Greenwich, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographs of Comet c 1908 at the Royal Observatory, Greenwich will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-785589