sábado, 31 de enero de 2015
domingo, 11 de enero de 2015
Hi , recent update the light visual and ccd curve of comet C/2014 Q2 LOVEJOY , the comet continue the increase of brightness , my last anaysis indicate variation of activity index of d(n)= -0.5 , the rate of increment continue high for this comet , n=9.7 , the power law is R^-9 , the normal power law is R^-4 , the formula general analyzed by Navarro Pina is m1= 2.9 + 5 log (delta) + 24.4 log (R) , the ICQ / MPC formula is m1= 4.0 + 5 log (delta) + 21.0 log (R) , the light curve is based in 828 from MPC/IAU , Comet Obs , Comet base , COBS , LIADA and observadorescometas original sources . * Preliminar results of comet C/2014 Q2 LOVEJOY * Calculated Mass , Diameter , Water rate production , and Fraction of active surface Area ( FASA ) Based in the work of Masses of long period comets ( A. Sosa , J.Fdez. 2011 ) , Analysis by J.P.Navarro Pina. * Water rate production log10 Q ( H2O ) = 10^-29.38 mol s-1 > 3.500 kgs /sec ( 3.5 tons / sec. ) Diameter ( km) * log10 D ( kms ) = 1.123 * log 10 M ( kgs ) = 13.96 For comparison : C/2004 Q2 .... log10 M ( kg ) = 13.0 C/2002 V1 NEAT .....log10 M ( kg) = 12.8 * Fraction of Active Surface Area = 3.1 For comparison : C/2004 Q2 , C/2007 W1 ..... FASA = 2.5 ** Note : These results are based on theoretical models and should be taken with caution .
sábado, 27 de diciembre de 2014
Update 27/12/2014 Analysis of the light visual and ccd curve of comet C/2014 Q2 LOVEJOY based in 567 observations from COBS , comet obs , LIADA , observadorescometas .
martes, 16 de diciembre de 2014
Based in 511 observations ccd+visual of comet from MPC database , Comet Obs , LIADA , and observadorescometas , update the new light curve of comet C/2014 Q2 LOVEJOY , continue fast increase of visual magnitude and probable state of outburts , my personal analysis indicate several possible outburts for this comet and lack confirmation , the activity index continue high n=10.3 ( 15/12/14 ) and absolute magnitude m0=+2.5 in r = 1,4 au . if you continue this rapid increase in brightness could have magnitude +4.1 in January -2015 , the Afro production is high rate actually ~ 4.200 cms ( From Cometas Obs data ) , dust rate production is typically of great comets , the comet masses computed for C/2014 Q2 , in comparison of comet 2P/ and 10P/ . The possible calculates active surface areas f > ~ 2.4 for this comet . The pre-perihelion formula general calculated is based in 93 visual's observations , thank all's visuals observers , great job .
lunes, 8 de diciembre de 2014
Good notices from this comet , continue show high rate of increase of brightness based in my personal calculates and personal analysis from 66 visuals observations and total of 354 ccds and visuals observations from Comet Obs , ICQ , LIADA and observadorescometas group , the absolute magnitude is m0=+2.5 and activity index is high comparate others comets n=10.3 and power law R^(-10.3) , the probability of maximum visual magnitude in T-20 days is m1 ~ +4.1 , the visible naked-eye and easy for binoculars .
jueves, 27 de noviembre de 2014
Analyzing the graph of this comet, the results of my analysis 3 major explosions throw dust in the cometary nucleus at R = 2.3, 2.1, and 1.58 ua, with increases included in the ranges of 200 < Afro < 400 cms. dust, so it is probable, and nothing ruled that the comet suffer more 'outburst' of this type make up much brightness.