 | Johnston's ArchiveAstronomy and Space |
Asteroids and TNOs with satellites (498 systems, 518 companions as of 3 September 2023)
Pluto and its moons (Pluto system summary information and images, following New Horizons flyby)
A TEXAN definition of a planet
1I 'Oumuamua (2017 U1): The first interstellar object within our solar system
solar system, general:
- Known populations of solar system objects (to 16 June 2023)
- Physical data for solar system planets and satellites (updated 17 June 2023)
- Orbital and dynamical data for solar system planets and satellites (updated 8 July 2023)
- Names of solar system objects and features
- Some named solar system objects
- Data on solar system objects:
- Gallery of solar system objects
- List of IAU preliminary designations of natural satellites
- Properties of the planetary satellites of the solar system (298 satellites as of 8 July 2023)
- A walk through the solar system (with Carol Lutsinger)--guide for elementary students
various topics:
- Largest impact features in the solar system
- Observed impact events (over 0.1 kilotons)
- Doublet craters
- Geysers on other planets and satellites
- Global warming on other planets?
- Sunspots of October-November 2003
- Map of the Moon
Mars:
- Map of Mars landing sites
- Quick guide to the Mars opposition of October/November 2005
- Phobos--information.
Europa:
- Europa--information and links.
- Named features on Europa
- Icosahedron map of Europa
asteroids:
- Investigation of evolution of orbits similar to that of (4179) Toutatis
- Largest asteroids and outer solar system objects
- Asteroid albedos: graphs of data
- Asteroids: sizes, colors, and albedos by semimajor axis and eccentricity
- Asteroid diameters and albedos from Spitzer Space Telescope observations (4,205 asteroids as of 29 September 2021)
- Radar-detected asteroids with radar-measured parameters (1,193 asteroids and 70 companions as of 11 July 2023)
- Predicted 2008 TC3 impact, 7 October 2008
- Contact binary asteroids, TNOs, and comets (84 known or suspected contact binary asteroids as of 15 April 2023)
- Asteroid pairs
Pluto:
- (134340) Pluto, Charon, Nix, Hydra, Kerberos, and Styx
- The atmospheres of Pluto and other trans-Neptunian objects
- Frequently asked questions about Pluto and the definition of a planet
- Planet crisis: what is a planet, a dwarf planet, and the status of Pluto?
- The case for planet Pluto
other trans-Neptunian planets:
- (136108) Haumea, Hi'iaka, and Namaka
- (136199) Eris and Dysnomia
- (136472) Makemake and S/2015 (136472) 1
- (225088) Gonggong and Xiangliu
- A TEXAN definition of a planet
trans-Neptunian objects:
- Trans-Neptunian objects
- Outer solar system objects: e vs. a and resonances
- TNO/centaur diameters and albedos (209 TNOs/Centaurs as of 18 July 2023)
- Orbits of some large TNOs
- List of trans-Neptunian objects (4,727 TNOs/Centaurs, 529 other asteroids as of 15 June 2023)
- Largest asteroids and outer solar system objects
- The atmospheres of Pluto and other trans-Neptunian objects
- Comparison of the largest TNOs
- Trans-Neptunian objects: sizes, colors, and albedos by semimajor axis and eccentricity
- Asteroid diameters and albedos from Spitzer Space Telescope observations (103 Centaurs and TNOs as of 1 March 2021)
- A tenth planet
- Contact binary asteroids, TNOs, and comets (14 known or suspected contact binary TNOs as of 15 April 2023)
comets:
- Comets: graphs of orbital data
- Contact binary asteroids, TNOs, and comets (7 known or suspected contacy binary comets as of 15 April 2023)
interstellar objects within the solar system:
- 1I 'Oumuamua (2017 U1): The first interstellar object within our solar system
- 2I Borisov (2019 Q4): The second interstellar object within our solar system
- Unconfirmed interstellar objects within the solar system
solar system exploration:
- List of deep space probes (summary)
- List of deep space probes (listing)
- Space probe flybys: closest approach data
- List of space physics satellites
- Space physics links--satellites and programs
- List of space physics probes beyond Earth orbit
stellar and extrasolar planet information:
- List of nearby stars (to 26 light years) (183 systems, 191 stars, 55 brown dwarfs and 109 planets as of 4 August 2022)
- Illustrations for nearby stars and planets: to 25.1 light years
- List of extrasolar planets (1,635 confirmed, 3,303 unconfirmed as of 9 March 2014)
- List of brown dwarfs (2,850 confirmed, 930 unconfirmed as of 27 December 2015)
relativistic objects:
- Black holes--part of a discussion of general relativity.
- List of black hole candidates (137 as of 30 January 2004)
- Binary pulsar PSR 1913+16
- List of known pulsars in binary systems (114 as of 22 March 2005)
- Gamma ray bursts
other material:
- Reading the Pioneer/Voyager pulsar map
- List of gravitational wave detectors
- Text of President George W. Bush's address on the space shuttle Columbia tragedy
- Text of President George W. Bush's address on a new vision for space exploration
- Space art--visualizations.
A brief commentary on sky watching--a synopsis of things to look for in the night sky and links for more information. Some specific information for observers in parts of Texas is included.
Observing man-made Earth satellites--a discussion of how to look for visible satellites in the night sky.
Heaven's Above predictions for viewing satellites from Brownsville, TX (external link)
Links for sky watchers
- Astronomy--Learn What's Up--includes sky charts.
- Astronomy Today.
- Heavens Above--provides predictions for viewing man-made satellites from any location you specify.
- NASA Sky Watch.
- Sky Screen Saver--shareware that displays a current sky chart (stars and planets).
- EarthSky Tonight.
- StarDate Online--web site for the University of Texas' Astronomy Department skywatching updates.
- Visual Satellite Observer's Home Page--provides predictions for viewing man-made satellites.
Astronomy information links
- general:
- Astronomy Picture of the Day--daily astronomy picture with explanation.
- Hubble Space Telescope Newscenter--public releases.
- International Astronomical Union.
- Students for the Exploration and Development of Space.
- solar system, general and planetary:
- Gazetteer of Planetary Nomenclature--IAU working group.
- Jet Propulsion Laboratories--home page for NASA's JPL.
- NSSDC--National Space Science Data Center.
- Solar System Dynamics--JPL site.
- Solar System Simulator--JPL site providing simulated views of solar system planets or moons.
- Space Weather--information on solar activity and meteor showers.
- Views of the Solar System--images and other solar system information.
- solar system, exploration missions:
- Messenger--NASA mission, Mercury orbiter.
- Soviet Exploration of Venus--history of Soviet unmanned Venus probes.
- Visible Earth--current NASA space-based observations of the Earth.
- Gateway to Astronaut Photography of the Earth--archive of four decades of astronaut photography of the Earth from space.
- Lunar Reconnaissance Orbiter--NASA mission, Moon orbiter.
- GRAIL--twin NASA Moon orbiters.
- Mars Curiosity Rover--NASA rover mission.
- Mars Exploration Rovers--NASA's Opportunity and Spirit rovers.
- Mars Reconnaissance Orbiter--NASA mission, Mars orbiter.
- Mars Odyssey--current NASA mission, Mars orbiter.
- Mars Express--joint ESA-NASA Mars orbiter.
- Dawn--NASA mission to Vesta and Ceres.
- NEAR Shoemaker--NASA mission now concluded, orbiter of asteroid 433 Eros.
- Juno--NASA mission en route to Jupiter.
- Cassini-Huygens--current NASA mission en route to Saturn and its moon Titan.
- News Horizons--NASA mission en route to Pluto.
- solar system, asteroids:
- The Tracking News--list of news items and links.
- Cambridge Conference Network--scholarly network on hazards of near-Earth objects and other topics.
- Distant EKOs--newsletter on trans-Neptunian objects.
- From the desk of Ted Bowell--asteroid research and resources.
- NeoDys--database on near-Earth asteroids.
- solar system, comets:
- The Tracking News--list of news items and links.
- Cambridge Conference Network--scholarly network on hazards of near-Earth objects and other topics.
- The COCD Homepage--Catalogue of Comet Discoveries.
- The ICQ Comet Information Website--by the International Comet Quarterly.
- Seiichi Yoshida's Home Page--extensive comet information.
- SOHO Sungrazer Home Page--observing sungrazing comets from the NASA Solar and Heliospheric Observatory.
- extrasolar planets:
- The Extrasolar Planets Encyclopaedia--information on planets discovered outside our solar system.
- Exoplanet Data Explorer.
- brown dwarfs:
- nearby stars:
- Internet Stellar Database--information on stars within 75 light years.
- The One Hundred Nearest Star Systems.
- stellar and other:
Other space links
- Encyclopedia Astronautica--Mark Wade's extensive web site on manned and unmanned space programs.
- Jonathan's Space Home Page--information on space exploration/activities.
- NASA History--space exploration resources.
- Spacecraft Encyclopaedia--database of satellite information.
Banner image: Io and Jupiter, taken by Cassini in 2000 (credit: NASA/JPL/Univ. of Arizona).
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Copyright © 2001-2022, 2023 by Wm. Robert Johnston. All rights reserved.
Last modified 3 September 2023.
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