Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sosyr..43..353b&link_type=abstract
Solar System Research, Volume 43, Issue 4, pp.353-363
Astronomy and Astrophysics
Astrophysics
2
96.30.Ys, 96.30.Za, 96.50.Hp
Scientific paper
Since 2006, systematic double-station photographic observations of fireballs using all-sky cameras equipped with Zeiss Distagon “fisheye” objectives ( f/3.5, f = 30 mm) with a 180° field of view have been carried out at two observatories, Gissar (GisAO) and Sanglokh (IAOS), of the Institute of Astrophysics of the Tajik Academy of Sciences. In the method of astrometric reduction of fireball photographs, the empirical formulae for converting the measured coordinates to horizontal celestial coordinates are used. These formulae contain 12 unknown constants to be determined by the least-squares method and the iteration method. Such an approach enables the determination of the coordinates of an object at any point of the celestial hemisphere with a precision close to the theoretical limit whose value is quite comparable with the measurement errors. In the photometric reduction, the dependence of the measured width of the diurnal star trails on their magnitudes was used. As a result of astrometric and photometric reduction of the double-station photographs of five fireballs, the data on atmospheric trajectories, the coordinates of radiants, orbits in interplanetary space, light curves, and photometric masses of meteoroids which produced fireballs were obtained, and the belonging of fireballs to the known meteor showers was determined as well.
Babadzhanov Pulat B.
Borovicka Jiri
Kokhirova G. I.
Spurny Pavel
No associations
LandOfFree
Photographic observations of fireballs in Tajikistan 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 Photographic observations of fireballs in Tajikistan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic observations of fireballs in Tajikistan will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1301287