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DRACONIDS PREDICTION'S 2019

Spanish Language . PREDICCIONES DE METEOROS DRACONIDAS 2019 Analisis de J.P.Navarro Pina * Investigador en Comet Asteroid Research and Watch FB-G En 2019, las Draconidas podrían volver a mostrar actividad un año después de la actividad moderada esperada en 2018. Esto está conectado con el encuentro orbital entre la Tierra y el enjambre meteorico de 1959, y este encuentro es bastante similar al caso de 1999, cuando se detectó una pequeña actividad debido al encuentro con 1966 rastro un año después del estallido de la ducha en el perihelio año 1998. Los parámetros de los enjambres encontrados en 1999 y 2019 se muestran a continuación en la tabla: Año Fecha y hora máximas, UT Longitud solar, ° rD-rE, AU fM (fMD) Vej, m / s Comentarios 1999 09.10.1999 12:24 195,776 -0,00139 3.725 69,5 Rastro de 1966 2019 08.10.2019 14:44 194,759 -0,00119 2.360 62,9 Rastro de 1959 Los parámetros de los enjambres de 1959 y 1966 están bastante cerca, además de tener solo una única diferencia signi…

Tuning the diameter of the comet's nucleus C/2018 W2 AFRICANO

I find a new correlation of diameter and magnitude absolute , there are several applicable equations to calculate based on the absolute luminosity of a comet, its diameter or its nuclear radius : Delsemme 1987 r nuc = 10^( 1.59-0.199H ) applied this formula ,my calculations indicated r nuc ( C/2048W2 ) = 0.99 kms For Sosa and Fdez ( 2011 ) log D ( kms ) = 1.2-0.13H for this formula D ( kms ) = 0.79 kms assuming p=0.4 g cm3 it is necessary to compile absolute total magnitudes absolutes for all's comets .

ANALYSIS LIGHT CURVE CCD C/2018 W2 AFRICANO

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Update of the ccd light curve of comet C / 2018 W2 AFRICAN based on 488 observations of this comet, where I have made the following approximate calculations: 1 Photometric parameters of the comet, calculation of the estimated magnitude estimated at m0 = + 12.5 and the rate of increase in brightness or activity index, n = 4.9, the result indicates an index that shows little or no activity at the core level, behaving as a solid object with almost no gaseous activity. 2 Based on the formula of Sosa and Fdez 2011,: log D (km) = 1.5-0.13H The estimated diameter is 0.9 kms, which is consistent with the data offered for other comets in the same study. 3 Water production rate, based on the estimated absolute magnitude, Q (H2O) ~ 27.6 mol / s, a fairly low figure that matches the tables shown in the same study. 4 Fraction of active area, here we can only establish a scale that turns out to be between 0.5

M3 CLUSTER

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Taken image Liverpool telescope 2 mts V Filter , ID Programme 16270 E , M3 ,Image and processing J.P.Navarro / Liverpool telescope .

Astrometry Stellar Photometry Infrared in NGC3184

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Based in images from Liverpool Telescope ( 2 mts ) ID Program 16198J , Navarro Pina Investigator , analyzed and processed images from galaxy ngc 3184 .

LIGHT CURVE REDUCED OF COMET 46/WIRTANEN SCIENTIFIC RESULTS

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Based on my analysis of the reduced light curve of comet 46p, based on 990 measurements, being the world's largest light curve, the preliminary scientific results are: Estimated diameter 0.96 kms, Estimated active surface area ~ 50km2, Water production rate Q (H2O) ~ 10 ^ 29.5 mol sec = 5 tons per second of water, it is observed that ar = 1.25 au, there is a change in the predominant chemical volatility being Q H2O> Q CO +, these results are preliminary, until completing the light curve, and are based on the following scientific references: Sosa, Fdez (2011), Yang (2008), Navarro (2018), MPC / IAU, Cobs.si, Observerscometas yahoogroups.com (Navarro owner).

PRELIMINARY ANALYSIS OF THE CURVE OF VISUAL LIGHT AND CCD OF THE COMET 46 P / WIRTANEN

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ABSTRACT A preliminary analysis of the visual light curve and ccd of Comet 46P / Wirtanen with 990 visual measurements and ccd obtained from the sources MPC / IAU, COBS database, and observadorescometas yahoogroups.com (Navarro Pina Administrator) is made, being the largest curve of light until the moment of this comet, are determined, the photometric parameters of the comet, absolute magnitude (m0), and rate of increase in brightness or activity index (n), as well as an analysis and revision of the physical parameters, diameter of the nucleus, mass, rate of water production, also the author, studies the correlation between magnitudes ccd (mccd) and visual (m1), finding an increase in time with a difference of 100 days of 4.4 magnitudes, and obtaining the equations [ d (m1-mccd) T-20 = 6.1 mag. ] and [ d (m1-mccd) T-20 = 1.7 mag.] 1. INTRODUCTION AND RESUME Studying the resulting light curve at only 20 days for perihelion, we found, with 990 visual observations and ccd collected f…