miércoles, 12 de abril de 2017
The light curve is dominated by 4 different brightness law settings separated by the red lines, at number 4, the outburts of the comet are observed, estimated in 2 magnitudes, I have made an adjustment of polynomials of degree 1, to adapt The light curve to the 4 different settings.
sábado, 8 de abril de 2017
My last analysis of the ccd-visual light curve, reduced magnitude vs log R, shows 2 semicurvatures in the law of brightness of the comet (in R = 5 au and R = 2 au), DJ 550 and DJ 800, something totally new Which he had not seen in a light curve of a comet, with an upper envelope and a lower envelope in the ccd data, coinciding with a modulation in the law of brightness of the comet. My analysis shows a total of 603 ccd and visual observations, the largest light curve of this comet performed, note that the visual observations show greater dispersion and higher brightness, the magnitudes ccd shows greater clustering in the data. Attached link of my last analysis
domingo, 8 de enero de 2017
The amateur astronomer and visual observer of comets, J.P.Navarro Pina, has discovered a burst of brightness or outburts in a comet near Earth, the comet in particular is called 45P / HONDA-MRKOS-PAJDUSAKOVA, it is a periodical comet, Whose orbit around the sun is every 5 years, currently this comet should be in visual magnitude +7, but on the night of January 5, 2017, the astronomer Murcia, J.P.Navarro Pina, measured the visual magnitude of the comet in 6, is To say 1 magnitude visual more brilliant than it was in previous nights, the discovery of the outburts by Navarro Pina, has put in alert to the international astronomical community, since now the comet could be visible to the naked eye since Any dark place and to be as bright as the comet Halley in 1986, various observers of world comets have confirmed the explosion of brilliance of the Spanish astronomer, comets, are fragile stars, that are composed mostly by water, dust, and rock, From time to time, some of them break or suffer gas and dust eruptions, causing sudden increases in brightness, which make them more spectacular in the night sky. J.P.Navarro Pina, a veteran astronomer from Murcia, and an observer of comet visuals, with more than 30 years of astronomical observations behind him, specialized in Comets, he has participated and collaborated with different astronomical centers and world observatories with his Measures of comets.Adjunt light visual curve of COBS database .
domingo, 25 de diciembre de 2016
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.
domingo, 6 de noviembre de 2016
viernes, 29 de abril de 2016
MASS , DIAMETER , WATER PRODUCTION , AND ANALYSIS OF THE LIGHT VISUAL CCD OF COMET C/2013 US10 CATALINA
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 ]
domingo, 24 de abril de 2016
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