Astronomy and Astrophysics – Astrophysics – Earth and Planetary Astrophysics
Scientific paper
2011-06-03
Astronomy and Astrophysics
Astrophysics
Earth and Planetary Astrophysics
11 pages, 1 figure, 4 tables
Scientific paper
When a star is described as a spectral class G2V, we know that the star is similar to our Sun. We know its approximate mass, temperature, age, and size. When working with an extra-solar planet database, it is very useful to have a taxonomy scale (classification) such as, for example, the Harvard classification for stars. The taxonomy has to be easily interpreted and present the most relevant information about extra-solar planets. I propose the following the extra-solar planet taxonomy scale with four parameters. The first parameter concerns the mass of an extra-solar planet in the form of the units of the mass of other known planets, where M represents the mass of Mercury, E that of Earth, N Neptune, and J Jupiter. The second parameter is the planet's distance from its parent star (semi-major axis) described in logarithm with base 10. The third parameter is the mean Dyson temperature of the extra-solar planet, for which I established four main temperature classes; F represents the Freezing class, W the Water Class, G the Gaseous Class, and R the Roasters Class. I devised one additional class, however: P, the Pulsar Class, which concerns extra-solar planets orbiting pulsar stars. The fourth parameter is eccentricity. If the attributes of the surface of the extra-solar planet are known, we are able to establish this additional parameter where t represents a terrestrial planet, g a gaseous planet, and i an ice planet. According to this taxonomy scale, for example, Earth is 1E0W0t, Neptune is 1N1.5F0i, and extra-solar planet 55 Cnc e is 9E-1.8R1. Key words: Catalogues - Extra-solar planet - Habitable zone - Planets
No associations
LandOfFree
Taxonomy of the extrasolar planet does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Taxonomy of the extrasolar planet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Taxonomy of the extrasolar planet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-223877