Entradas

LIGHT CURVE REDUCED OF COMET 46/WIRTANEN SCIENTIFIC RESULTS

Imagen
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

Imagen
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…

NEW HYPOTHESIS ON INTERSTELLAR OBJECT 1I / OUMUAMUA

This new article in Astrophysical journal is quite consistent with the hypothesis that I have been mentioning for several weeks ... comment on the possibility of being in front of a new type of '' comet '' never observed in our solar system, the explanation is based on It deals with an icy body that has been eons traveling among the stars suffering above all the "erosion" of cosmic rays on its surface, leaving a new type of very reflective ice that has never been observed before in a comet, in this way, we can also Explain the non-gravitational accelerations observed. Abstract 1I/'Oumuamua is the first confirmed interstellar body in our solar system. Here we report on observations of 'Oumuamua made with the Spitzer Space Telescope on 2017 November 21–22 (UT). We integrated for 30.2 hr at 4.5 μm (IRAC channel 2). We did not detect the object and place an upper limit on the flux of 0.3 μJy (3σ). This implies an effective spherical diameter less than [98…

Prediction of maximum brightness of comet 46 P/Wirtanen

Imagen
The recent analysis update of light visual curve based in COBS DATABASE , obtained visual magnitud maximum of m1=+3.5 data 17/ December 2018 , based next photometricals parameters m0=8.9 and activity index n=9.9 this calculations based in classic formula for predicted visual magnitude : m1 = m0 + 5 log ( delta ) + n log ( R )

J.P.NAVARRO PINA DISCOVERED THE NINTH NEW ASTEROID 2018 NJ15

"Pseudo-MPEC" for 2018 NJ15 Created 2018 Oct 11 13:39:02 UT using Find_Orb Astrometry Observing stations Orbital elements Residuals Ephemeris Click here to search NEAT images for this object using Skymorph Click here to search DSS2 images for this object using Skymorph Click here to search Spacewatch images for this object using Skymorph Astrometry: K18N15J C2018 07 12.09667 20 24 57.86 -14 37 49.8 20.2 R ~2ifJ954 K18N15J C2018 07 12.09834 20 24 57.74 -14 37 52.2 20.3 R ~2ifJ954 K18N15J C2018 07 12.10507 20 24 57.43 -14 37 53.2 20.3 R ~2ifJ954 K18N15J C2018 07 13.10214 20 24 09.19 -14 45 01.5 20 R ~2ifJ954 K18N15J C2018 07 13.10383 20 24 09.10 -14 45 02.7 20.1 R ~2ifJ954 K18N15J C2018 07 13.11054 20 24 08.77 -14 45 05.1 19.9 R ~2ifJ954 Station data: (954) Teide Observatory (N28.2985 W16.5094) Canary Islands (Spain). Orbital elements: 2018 NJ15 Perihelion 2019 Dec 12.318160 +…

HISTORICAL LIGHT CURVE FROM 1959-2018 COMET 21P / GIACOBINNI-ZINNER

Imagen
I analyzed a total of 2725 visual observations of comet 21P / Giacobinni-Zinner, from 1959 to 2018, with a total of 10 steps perihelion, analyzing their photometry the general equation shows the following result, my personal equation is as follows: m1 = +11.5 + 5 log (d) + 11.2 log (R) Photometricals Parameters General of 10 Perihelion Magnitude Absolute m0 = 11.5 Activity Index n = 11.2 (4,5) ICQ Formula m1 = 9.0 + 5 log (d) +15.0 log (R) This is the largest historical series obtained from this comet based on the data offered by MPC / IAU and COBS database International. The residual data obtained by J.P. Navarro Pina, offer greater statistical confidence: +/- 1.70 + 0.000 ---- 2725 Visuals Observations (Navarro Pina 2018) +/- 2.54 +1.82 ------ 2725 ICQ / IAU Navarro Pina has also updated the following physical quantities of the comet 21P / GZ data 2018, Diameter of the core log D (kms) = 0.42 ( 2,0 kms ) , Estimated mass log M (kg) = 11.9, Water rate production max log Q (H…