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preliminar light visual curve of comet C/2016 U1 NEOWISE

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My analysis of the visual light curve of Comet C / 2016 U1 NEOWISE indicates that the comet based on its abosolute magnitude of m0 = 11.0 would have an estimated core diameter of D = 1.15 kms (Navarro 2016) based on the formula Of Sosa & Fdez, 2011, and a core radius of Rn = 0.575 km, and an estimated mass of M = 0.3x10 ^ 12 kg (Navarro 2016), my initial conclusions show that this is a small fragment of new comet Of the Oort cloud with very volatile "ice volatiles", the images show a very gaseous and little dusty comet, where the sublimation of gas is greater than the dust, probably a fragment of giant comet detached.

LIGHT CURVE CCD COMET C/2015 V2 JOHNSON ( Analysis )

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MASS , DIAMETER , WATER PRODUCTION , AND ANALYSIS OF THE LIGHT VISUAL CCD OF COMET C/2013 US10 CATALINA

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Recent update of the light visual ccd curve based in 2430 ccd's-visual observations frome the database MPC/IAU , i calculated the new photometrical's parameters and i have discovered 3 different photometric laws that dominate the general curve photometric comet , the water rate production max. is 4000 kg/sec. log Q ( H2O ) = 10^29.6 mol sec , the mass estimated is log M (kg ) =11.2 , M = 1.1x10^11 kg , diameter calculated D(kms ) = 0.96 . graphic and analysis down . The general rate production of comet C/2013 US10 CATALINA , ( Jorda et al. 2008 ) [ log Q = -0.8 / n * m0 + C , Result log Q = -3.721 + C ]

COMET C/2011 J2 (LINEAR) NUCLEUS SPLITTING: DYNAMICAL AND STRUCTURAL ANALYSIS

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I am pleased to announce that I have posted as co-author's work astrophysics comet C / 2011 J2 LINEAR, in collaboration with a group of international researchers in the prestigious journal Astrophysics of Planetary and Space Science publisher Elsevier. You can access the following link to see it: http://www.sciencedirect.com/science/article/pii/S0032063316300265

ANALYSIS OF THE OUTBURTS AND THE LIGHT VISUAL-CCD CURVE OF COMET C/2013 X1 PANSTARRS

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My last and personal analysis of the light visual curve ccd+visual , show the data of recent outburts confirmed for multiples observers , the first notice of alert is one message of Stephen McCann UK in the yahoogroups.com comets-ml the 3.87/Jan./2016, the observer alert increment brightness of m1=+8.5 , the last visuals magnitudes from the data indicate range of visual's magnitudes of 9.5 < m1 < 10.5 , the visuals magnitudes : 8.0 , 8.8 , 8.5 and the last recent 7.9 ( Neil Norman , UK ) in the 3 , 4 and 5 January 2016 . The photometric law visual indicate visual magnitude max. of m1~ +5.0 in 20/06/2016 , based in formula m1 = +2.2 + 5 log (d) + 18.2 log (r) , the power law is high n=7.3 , based in R^ (-7.3) .

C/2013 US10 CATALINA FINSON-PROBSTEIN DIAGRAM

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The motion of dust particles in a cometary environment is a complex process, and a precise description of the trajectories of grains within the coma requires adavnced hydrodynamic models, taking into account the interaction between gas and dust released from the surface. In the tail, dust and gas are decoupled and the only significant forces affecting the grain trajectories are the solar gravity and radiation pressure. Both forces depend on the square of the heliocentric distance but work in opposite directions. Their sum can be seen as a reduced solar gravity, and the equation of motion is simply m*a=(1-beta)*solar_gravity, where beta is the ratio radiation_pressure/solar_gravity, and is inversely proportional to the size of the grains for particles larger than 1 micron. From this relation, Finson & Probstein (1968) proposed a model which describes the full tail geometry with a grid of synchrones and syndynes; lines representing respectively the locations of particles released a…