Juno Mission - 2nd new frontier

[3488]

Hi Alokmohan, <br /><br />It sure is. Also the name of the third asteroid discovered, 3 Juno.<br /><br />Andrew Brown. <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[3488]

Hi vishniac,<br /><br />The approach speed is far too fast, New Horizons accellerated to just over<br />83,700 KPH / 52,000 MPH. To aerocapture at that speed with current means is well nigh impossible<br />unless you are going to a heat sheild that weighs many tons of course.<br /><br />As jimfromnsf said, using a retromotor at that kind of speed is also impractical.<br /><br />The retromotor would have to larger than the launch vehicle that launched it<br />from Cape Canaveral <img src="/images/icons/crazy.gif" /> .<br /><br />There is no quick way for a Uranus or Neptune orbiter now. <br /><br />Encounters yes, like that proposed for the cancelled New Horizons 2, which would have <br />encountered Jupiter & then Uranus in 2014.<br /><br />New Horizons planet orbit crossing dates below:<br /><br />Saturn: Sunday 8th June 2008.<br />Uranus: Friday 18th March 2011.<br />Neptune: Sunday 24th August 2014.<br /><br />Passes by Pluto: Tuesday 14th July 2015.<br /><br />Wonder when New Horizons will cross the orbit of Eris, or that weirdo Sedna????<br /><br />So we can now deliver payloads in a fairly reasonable time to the outer solar system, but<br />orbital craft, unfortunately <br />is not so easy, due to the fairly low approach speeds required.<br /><br />Andrew Brown. <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[h2ouniverse]

Let's hope they pick an interesting target for New Horizons, for the TNO they want to visit after Pluto.<br />Unfortunately, Orcus, Eris and 2003EL61 are not in the good quadrant.<br />Quaoar will be not that far but 15° of ecliptic longitude difference is very much of an annoyance at these distances.<br />

 

[3488]

Hi Joel,<br /><br />Both Quaoar & Ixion will be about 16 AU away from Pluto come encounter time.<br /><br />It may be possible to carry out phase & light curve observations of both using LORRI,<br />after the Pluto encounter.<br /><br />Comet Ikeya-Zhang will be only 8.9 AU away, but once again, inclination issues are a pain.<br /><br />Eris is nearly 109 AU away & Sedna 110 AU way.<br /><br />Lets hope something of interest will be found.<br /><br />Andrew Brown. <div class="Discussion_UserSignature"> <p><font color="#000080">"I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before".</font> <em><strong><font color="#000000">Linda Morabito </font></strong><font color="#800000">on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.</font></em></p><p><font size="1" color="#000080">http://www.launchphotography.com/</font><br /><br /><font size="1" color="#000080">http://anthmartian.googlepages.com/thisislandearth</font></p><p><font size="1" color="#000080">http://web.me.com/meridianijournal</font></p> </div>

 

[h2ouniverse]

in reply to <br />-------------<br />Lets hope something of interest will be found. <br />-------------<br /><br />Hi Andrew,<br /><br />As I just recalled in the thread "Dazzling statistics", the current rate is one 1000km+ body per year on average, and one 500km+ body every three months.<br /><br />This means we should expect 7 large bodies and 20 medium ones to be added to the list by 2015.<br /><br />Let's see.<br /><br /> Joel

 

[alokmohan]

Absolutely clear.