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).
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…
Analysis of the light curve of comet C / 2017 O1 ASASSN based on 518 visual observations and ccd of Comet Obs yahoogroups.com, observers comets yahoogroups.com, COBS database, LIADA comet database, it is the largest curve of elaborated light of this comet so far, based on this analysis the comet suffered an outburts in R = 1.85 au which carried it at a confirmed rate of 400-500 cms of dust production based on data from CARA database Afp parameter, this outburts, made up 2 magnitudes ccd to the comet with respect to its average magnitude, in the data of visual magnitude I have not found any indication of this outbreak, the ccd data are of value to know the rate of dust production. In T-60 days, the comet suffered an inburts or brake in its rate of increase of brightness that makes it lower 1.5 magnitudes ccd, in the visual data I have not found any indication of this fact either. The brightness brightening curve of the comet is very slight and the comet is most likely not to exceed a m…