Double Spiral Cote's Galaxies NGC 1566 and the Southern Pinwheel, and Cyclone in the South Sandwich Islands
Ricardo Gobato,
Abhijit Mitra,
Poulomi Mullick
Issue:
Volume 10, Issue 1, March 2023
Pages:
1-8
Received:
13 May 2023
Accepted:
1 June 2023
Published:
10 June 2023
Abstract: The work is focused on the comparative analysis of the shape of spiral galaxies and the subtropical cyclone that formed north of Georgia Island and passed north of the South Sandwich Islands, in the South Atlantic Ocean. Subtropical cyclones with double spirals appear to be common in these areas of the South Atlantic. A subtropical cyclone is a weather system that has some characteristics of a tropical cyclone and some characteristics of an extratropical cyclone. They can form between the equator and the 50th parallel. In mathematics, a spiral is a curve, which emanates from a point, moving farther away as it revolves around the point. The characteristic shape of hurricanes, cyclones, typhoons is a spiral. The characteristic equation of which spiral the Extratropical Cyclone (EC) its double spiral shape, whose mathematical equation has already been defined as Cote’s spiral, Gobato et al. (2022) and similarly Lindblad (1964) show shape of double spiral galaxies, already studied among others is discussed here. Analyzed the spiral galaxy M83 also known as the Southern Pinwheel, this galaxy is located 15 million light-years away from Earth in the constellation Hydra, and NGC 1566 sometimes known as the Spanish Dancer, is an intermediate spiral galaxy in the constellation Dorado, positioned about 3.5º to the south of the star Gamma Doradus.
Abstract: The work is focused on the comparative analysis of the shape of spiral galaxies and the subtropical cyclone that formed north of Georgia Island and passed north of the South Sandwich Islands, in the South Atlantic Ocean. Subtropical cyclones with double spirals appear to be common in these areas of the South Atlantic. A subtropical cyclone is a wea...
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Quantification of Near-Earth Objects Between 1990-2021: An Overview
Osuji Emmanuel Uchenna,
Ugwu Monday,
Aernan Andofa,
Ojima Ocheni,
Aneke Ukpabi,
Wash Albert,
Madike Emeka Michael,
Justus Chukwunonyerem,
Okolo Obinna,
Okoro Emmanuel Chineche,
Okpara Richard Tobechi,
Vincent Osinachi Ezinwa,
Ekechukwu Uzoamaka,
Obasi Rita Chioma,
Ezenwukwa Nnenna Dorathy
Issue:
Volume 10, Issue 1, March 2023
Pages:
9-13
Received:
31 May 2023
Accepted:
19 June 2023
Published:
27 June 2023
Abstract: In this work, the quantification of Near-Earth Object (NEO) has been carried out between 1990 to 2021. The emphasis is to examine the total number NEO discovered, the relationship between them and the earth-orbit especially with respect to their magnitude and distance (objects, aphelion and perihelion). Three categories of data (Amors, Apollos and Atens) were sourced from Minor Planet Center data repository (minorplanetcenter.net//iau/lists/Unusual.html), based on their orbital revolution and the pattern. Exploratory data analysis (EDA) of 5700 NEOs samples using python analytics was carried out and the result shows the average distribution of minimum distance between earth-orbit and NEOs. The result also shows yearly distribution of mean distance and magnitude. Furthermore, out of the 5700 NEOs analyzed, 22.9% were found to be potentially hazardous asteroids (PHAs) with higher possibility of an encounter with the earth, found at 0.01AU distance from the earth-orbit.
Abstract: In this work, the quantification of Near-Earth Object (NEO) has been carried out between 1990 to 2021. The emphasis is to examine the total number NEO discovered, the relationship between them and the earth-orbit especially with respect to their magnitude and distance (objects, aphelion and perihelion). Three categories of data (Amors, Apollos and ...
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