Comments on: Jupiter's Callisto: Gateway To The Gas Giants http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html Discussing reasonable ways to colonize our solar system Fri, 03 Feb 2012 08:16:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: soccer cleats http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-3066 soccer cleats Sat, 17 Sep 2011 04:04:00 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-3066 Too much knowledge makes the head bald. Too much knowledge makes the head bald.

]]> By: Roman White http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-3044 Roman White Sun, 10 Apr 2011 00:12:00 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-3044 Thanks for the post, I agree with author: Callisto is a best site for colonization in Jovian orbit, and (imho) in the top 7 (or 5) large celestial bodies of Solar system. It's funny to note the fact that while we try to identify those tiny amount of Hydrogen on Moon as possible water ice, Callisto is a vast volume of it! Thanks for the post, I agree with author: Callisto is a best site for colonization in Jovian orbit, and (imho) in the top 7 (or 5) large celestial bodies of Solar system. It’s funny to note the fact that while we try to identify those tiny amount of Hydrogen on Moon as possible water ice, Callisto is a vast volume of it!

]]> By: JUNO To Trek Where Humans Dare Not Travel (Jupiter) | Colony Worlds http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1038 JUNO To Trek Where Humans Dare Not Travel (Jupiter) | Colony Worlds Tue, 20 Jul 2010 02:01:48 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1038 [...] the four Galilean moons that orbit this Jovian world, only Callisto is is known to be habitable for humans due to the planet’s radiation [...] [...] the four Galilean moons that orbit this Jovian world, only Callisto is is known to be habitable for humans due to the planet’s radiation [...]

]]> By: Video: VASIMR May Be The Only (Safe) Way To Reach Mars | Colony Worlds http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1037 Video: VASIMR May Be The Only (Safe) Way To Reach Mars | Colony Worlds Mon, 22 Mar 2010 18:42:14 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1037 [...] this rocket, as it could enable us to not only reach and settle Mars within our life time, but perhaps Callisto, Ganymede and Saturn’s Titan as well. Random PostsEurope Constructs A Space Dump [...] [...] this rocket, as it could enable us to not only reach and settle Mars within our life time, but perhaps Callisto, Ganymede and Saturn’s Titan as well. Random PostsEurope Constructs A Space Dump [...]

]]> By: Off World Colonies Will Have Organ Labs (But No Organ Donors) | Colony Worlds http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1036 Off World Colonies Will Have Organ Labs (But No Organ Donors) | Colony Worlds Fri, 13 Nov 2009 05:57:02 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1036 [...] if one lives upon say Mars, the dwarf world Ceres or the Galilean mega moons of Ganymede and Callisto, your options of finding a suitable match may be close to [...] [...] if one lives upon say Mars, the dwarf world Ceres or the Galilean mega moons of Ganymede and Callisto, your options of finding a suitable match may be close to [...]

]]> By: Moon: Oxygen, Oxygen Everywhere, But We’ll Need Hydrogen To Drink | Colony Worlds http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1035 Moon: Oxygen, Oxygen Everywhere, But We’ll Need Hydrogen To Drink | Colony Worlds Sat, 31 Oct 2009 00:33:18 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1035 [...] As a bonus, future settlers could use the spare hydrogen and oxygen to also create rocket fuel, which could help reduce the cost of missions elsewhere (whether it’s Mars, Ceres or even the moons of Jupiter). [...] [...] As a bonus, future settlers could use the spare hydrogen and oxygen to also create rocket fuel, which could help reduce the cost of missions elsewhere (whether it’s Mars, Ceres or even the moons of Jupiter). [...]

]]> By: Michael Welford http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1034 Michael Welford Sat, 11 Aug 2007 01:40:00 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1034 Sigh!<br/><br/>I said it wasn't clear to me that you could benefit from a slingshot starting from Callisto. I forgot about powered slingshots.<br/><br/>But the rest of the stuff I wrote still stands up.<br/><br/>I hope.<br/><br/>Sigh! Sigh!

I said it wasn’t clear to me that you could benefit from a slingshot starting from Callisto. I forgot about powered slingshots.

But the rest of the stuff I wrote still stands up.

I hope.

Sigh!

]]> By: Michael Welford http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1033 Michael Welford Sat, 11 Aug 2007 01:21:00 +0000 http://www.colonyworlds.com/2007/08/jupiters-callisto-gateway-to-the-gas-giants.html#comment-1033 I'd like to share some thoughts on the idea of using Callisto as a base for a Jupiter gravitational slingshot to distant solar system destinations.<br/><br/>First it's not clear to me that you can get enough juice out of a slingshot effect to compensate for Callistos position inside Jupiters gravity well.<br/><br/>However, we can send our spacecraft into a sequence of orbits around Jupiter which approach the big moons using them to create small slingshot effects to give our spacecraft orbital energy before finally doing a Jupiter slingshot to the outer solar system. Better yet, it may be possible to do this using low energy transfer orbits. These orbits take advantage of chaotic instabilities near Lagrange points to minimise energy expenditure at a cost of increased travel time. Using Lagrange points of Jupiter and its moons in this way would only add weeks to travel time.<br/><br/>A wilder idea would be to use these low energy transfer orbits within the Jupiter system to set up an approach to a Sun-Jupiter Lagrange point, resulting a low energy transfer which would set up an eventual Jupiter slingshot to the outer solar system. I don't know if this is actually possible.<br/><br/>Wikipedia has an introduction to the low energy orbits here:<br/>http://en.wikipedia.org/wiki/Interplanetary_Transport_Network<br/><br/>One good article is:<br/>New methods in celestial mechanics and mission design<br/>http://www.ams.org/bull/2006-43-01/S0273-0979-05-01085-2/home.html<br/><br/>Another article which deals specifically with the Jupiter system is:<br/>Design of a Multi-Moon Orbiter<br/>http://www.esm.vt.edu/~sdross/papers/AAS-03-143.pdf<br/><br/>I hope this helpful. I’d like to share some thoughts on the idea of using Callisto as a base for a Jupiter gravitational slingshot to distant solar system destinations.

First it’s not clear to me that you can get enough juice out of a slingshot effect to compensate for Callistos position inside Jupiters gravity well.

However, we can send our spacecraft into a sequence of orbits around Jupiter which approach the big moons using them to create small slingshot effects to give our spacecraft orbital energy before finally doing a Jupiter slingshot to the outer solar system. Better yet, it may be possible to do this using low energy transfer orbits. These orbits take advantage of chaotic instabilities near Lagrange points to minimise energy expenditure at a cost of increased travel time. Using Lagrange points of Jupiter and its moons in this way would only add weeks to travel time.

A wilder idea would be to use these low energy transfer orbits within the Jupiter system to set up an approach to a Sun-Jupiter Lagrange point, resulting a low energy transfer which would set up an eventual Jupiter slingshot to the outer solar system. I don’t know if this is actually possible.

Wikipedia has an introduction to the low energy orbits here:
http://en.wikipedia.org/wiki/Interplanetary_Transport_Network

One good article is:
New methods in celestial mechanics and mission design
http://www.ams.org/bull/2006-43-01/S0273-0979-05-01085-2/home.html

Another article which deals specifically with the Jupiter system is:
Design of a Multi-Moon Orbiter
http://www.esm.vt.edu/~sdross/papers/AAS-03-143.pdf

I hope this helpful.

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