International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
www.irjet.net
New Nomenclature for Eclipses, Transits and Occultation: Observer Oriented Approach Mitali Kabra1, Sudarshan Loya2 1Crux View Center, Sagar Trade Center, Jalna Road, Aurangabad
2Adjunct Professor, Deogiri Institute of Engineering & Management Sciences, Station Road, Aurangabad
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Abstract - Humans are soon going to inhabit different
Most people on earth are aware of two kinds of eclipses: Solar and Lunar eclipse [7], [8]. These eclipses have not only shaped our scientific understanding but also our cultural and religious beliefs[9]. But modern day discoveries demand a new classification not just for eclipses but also for transits and occultation. These classifications and nomenclatures need to be observer position dependent as human beings or spacecrafts are no longer bound to earth or just our solar system and in future may observe such phenomena from other bodies. This effort will make the nomenclature universal and usable by future generations.
celestial bodies, one of them being moon. The eclipses on Earth will seem different on the moon. For example, when a Lunar Eclipse occurs on the earth, it will be a Solar Eclipse on the moon. So, even though the celestial arrangement is same, when the observer’s position is changed, the entire phenomenon gets changed. Eclipses, transits and occultation are also used by astronomers to find details about celestial bodies. It is important to clearly name the arrangement to explain the syzygy and its meaning. This paper is an attempt to review the current as well as possible new astronomical phenomena and name them precisely keeping the observer’s position in mind.
So, this paper aims to provide an insight about possible eclipses, transits and other phenomena occurring on celestial bodies, while taking into consideration the position of the observer. The ideas explained in here are using simple mathematical equations developed from similarity of triangles. Even though dwelling into a more detailed mathematical expression is not possible at this time, the ideas presented here, are very much valid and surely have greater scope.
Scientists have been discovering new, different and quirky systems. So, there may be a possibility of various other types of events occurring, that one may not have even imagined. It is necessary to look into such possibilities from mathematical point of view and name it, so that astronomers can use them to make their mathematical models for exo-planet and exo-moon hunting more precise. A new system is defined in here to name the possible eclipses, transits and occultation, such that any new development can be properly explored and classified. Even though authors have covered a wide range of eclipses and occultations, authors believe this may not be the end of the road. Key Words: Eclipses, Occultation, Nomenclature, Syzgy, Observer Oriented.
1.1 Naming from Observer’s Point of View: Many space agencies are planning to create a permanent settlement on the moon by 2035 [10], [11]. The people inhabiting the moon will see the eclipses that occur on earth in a completely different way. In such a scenario, one should take into consideration the position from where the observer may be watching the phenomenon. Because, the eclipses that take place on the earth, are named considering the observer's position to be Earth; so, while discussing eclipses, transits and occultation on other celestial bodies, it is important to identify the observer position.
Exoplanets,
1. INTRODUCTION Modern astronomy is filled with many wonders and discoveries of amazing Exoplanets, exomoons and stellar systems which are very different from that of ours [1]–[6]. These discoveries of Exoplanetary system along with their shapes, sizes and orbits shows that universe is filled with stellar systems which cannot be comprehended by any of the human’s current analytical or imaginative models. In light of such amazing discoveries, one can wonder not only about the planetary systems; but kind of syzygy they can create. Such arrangements of planets, its natural satellite need to be studied in detail, but before that they need to be classified.
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When there is a lunar eclipse on the Earth, it won't be a lunar eclipse on the Moon. It would be a solar eclipse on the Moon, but to make the observer’s position clear, scientists have named it as a solar eclipse on the moon [12], [13]. Similarly when there is a solar eclipse on earth, the near side of the moon facing the earth, may see a small black spot moving across the surface of the earth. Though this will not be an eclipse, it will be more of black spot or shadow transiting the earth and hence should be named as Self transit (moon on earth). When the shadow of the body
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