jueves, 29 de agosto de 2013
I calculated the period of rotation of comet C/2012 S1 ISON , my calculations based in database from MPC ( IAU ) 3.058 ccd magnitudes ( T-N ), the periodogram type used is LOMB-SCARGLE , from NASA EXOPLANET PERIODOGRAM SERVICE , the results show rotation period of Prot= 7,996 hours , P = 0.333196 , this results coincide as diameter of comet of nucleus of 5 kms , based in data from SWIFT/NASA .
miércoles, 28 de agosto de 2013
Updated the light ccd curve of comet C/2012 S1 ISON , the curve shows a drop in brightness on the red line expected theoretical , i reduced to conversion formula visual to ccd , and the maximun brightness is possible ~ +3.5 in perihelion , based in 3058 ccd observations .
Based in next telegram : ATEL #13945 ATEL #13945 Title: Rotation of Comet C/2020 F...
C/2019 Y4 ATLAS by HUBBLE SPACE TELESCOPE Original observing program: 16111 - Jewitt, David - University of California - Los Angeles Breakup...
Discovery Date December 28, 2019 Magnitude 19.6 mag Discoverer Asteroid Terrestrial-Impact Last Alert System (ATLAS) search program