C/1999 S4 (LINEAR)
The beauty and the death of the comet,
only in one week.
The Beauty ....
... and the DEATH of comet C/1999 S4 (LINEAR)
© 2000-07-22 and 2000-07-31 by Bernhard Haeusler, Maidbronn, Germany
© 2000-07-31 by Bernhard Haeusler, Maidbronn, Germany
14 frames, one minute each, 2000-07-31, UT 20:16, 12" SCT f-10 + CCD ST-8
Gauss curve produced by Astrometrica. The total PSF is using the
aperture circle of 10 x 10 pixel around the brightest pixel.
Photometry computed with FOCAS II, using the Multibox method:
10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD
C/1999 S4 22/07/2000 22:18:12
6.52 6.30 6.12 198.3 17.8 B82
FoCAs II - 07/01/2009-b
FOCAS II is a tool for photometry on the base of data coming from Astrometrica. Focas is basically using the .LOG file of Astrometrica.
Explanation of the FOCAS II table headings:
Object, date and time are self-explaining.
Focas II is using the .log file of Astrometrica and is computing
the photometry under different apertures (10x10 ... 60x60).
© Copyright of all sites and images of this web: Bernhard Haeusler, Dettelbach, Germany IAU code: B82 Maidbronn and K87 Dettelbach Vineyard Observatory