121. Bill A - பில்லா - BillA

இன்னைக்கு சூடன பதிவுகள் பில்லா பற்றியது தான், அதனால நாங்களும் போடுவோம்ல பில்லா பதிவு.

இனிமே சூடான பதிவுகளுக்கு எதிர் பதிவு போட்டு நாங்களும் கும்மி அடிக்கலாம்னு இருக்கோம்...

இதொ உங்களுக்காக குட்டீஸ்'ன்

A Multimedia Tour of the Solar System: one star, eight planets, and moreby Bill Arnett (பில்லா ர்னெட்)

This is an overview of the history, mythology, and current scientific knowledge of the planets, moons and other objects in our solar system.

Each page has my text and NASA's images, some have sounds and movies, most provide references to additional related information.

All eight planets can be seen with a small telescope; or binoculars. And large observatories continue to provide much useful information. But the possibility of getting up close with interplanetary spacecraft has revolutionized planetary science. Very little of this site would have been possible without the space program.

Nevertheless, there's a lot that you can see with very modest equipment or even with just your own eyes. Past generations of people found beauty and a sense of wonder contemplating the night sky. Today's scientific knowledge further enhances and deepens that experience. And you can share in it by simply going out in the evening and looking up.

The IAU has changed the definition of "planet" so that Pluto no longer qualifies. There are now officially only eight planets in our solar system. Of course this change in terminology does not affect what's actually out there. In the end, it's not very important how we classify the various objects in our solar system. What is important is to learn about their physical nature and their histories.

Web
www.nineplanets.org
Introduction and FAQ
What's New
Express Tour
Solar System Overview
The Sun
Mercury
Venus
Earth
The Moon
Mars
Phobos
Deimos
Jupiter
Metis, Adrastea, Amalthea and Thebe
Io
Europa
Ganymede
Callisto
Leda, Himalia, Lysithea, Elara, Ananke, Carme, Pasiphae and Sinope
Recently discovered moons
Saturn
Pan and Atlas
Prometheus and Pandora
Epimetheus
Janus
Mimas
Enceladus
Tethys, Telesto and Calypso
Dione and Helene
Rhea
Titan
Hyperion
Iapetus
Phoebe
Recently discovered satellites
Uranus
Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda and Puck
Miranda
Ariel
Umbriel
Titania
Oberon
Caliban, Sycorax, Prospero, Setebos, Stephano, and Trinculo
Neptune
Naiad, Thalassa, Despina and Galatea
Larissa
Proteus
Triton
Nereid
Pluto
Charon
Nix and Hydra
Small Bodies
Comets
Comet Halley
Comet Shoemaker-Levy 9
The Kuiper Belt and the Oort Cloud
Sedna
Asteroids
951 Gaspra
243 Ida
253 Mathilde
433 Eros
Meteors, Meteorites and Impacts
The Interplanetary Medium
Other Solar Systems
Seeing the Solar System with your own eyes (or binoculars or a small telescope)
Spacecraft involved in planetary science
How you can help support the continued exploration of space
Glossary of technical terms and proper names
Appendices
Solar System Data: Orbital, Physical, Misc
Extrema, the biggest, brightest, etc.
Discovery Chronology
The Origin of the Solar System
Planetary Linguistics, including the planets' names in various languages
Astronomical Names and how they're assigned
Hypothetical Planets (Planet X et al, or "Don't believe everything you read")
Planetary Picture List: images on the Net; posters, calendars and prints offline
Planetary Music: classical music relating to the planets
Bibliography and credits for those who helped make this possible
Mirror sites
Copyright Notice
The Nine Planets Bookstore: books about the solar system
How to contact the author (for comments, questions and bug reports)