Comets
<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=168 BGCOLOR="#000000" TEXT="#F7F7FF" background="13ea11c3.png"> <bR> <bR> <bR> <div> <A HREF="http://members.lycos.co.uk/peterjgarbett" TARGET="_top" TITLE="http://members.lycos.co.uk/peterjgarbett"><B><IMG SRC="14f64510.png" border=0 width="100" height="81" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A></div> <div> <A HREF="http://members.lycos.co.uk/peterjgarbett" TARGET="_top" TITLE="http://members.lycos.co.uk/peterjgarbett"><B>Home...</B></A></div> </td> <td valign="top" width="100%" BGCOLOR="#000000" TEXT="#F7F7FF"> <div> <B>Jupiter</B></div> <div> <IMG SRC="00758020.png" border=0 width="600" height="2" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B>Jupiter: an imaging challenge in 2008!</B></div> <bR> <div> Jupiter culminated at an altitude of no more than 15 degrees from my observatory in 2008 </div> <div> as it attained its most southerly declination in Sagittarius. To try and reduce the extremes </div> <div> of atmospheric turbulence, I used an Astronomik 742nm near Infra red filter, as the </div> <div> atmosphere is less affected at these longer wavelengths. The use of separate colour </div> <div> filters also reduces the effects of colour dispersion created by the different degrees of </div> <div> atmospheric refraction at various wavelengths. I also operated at a very conservative</div> <div> F-ratio of F11.</div> <bR> <bR> <bR> <div> <IMG SRC="1bedbb90.jpg" border=0 width="219" height="185" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <bR> <bR> <div> <B> 19.9.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=18:52UT G=18:55UT B=18:54UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot near left limb, Io near right limb.</div> <bR> <bR> <bR> <bR> <div> <IMG SRC="1bfbeae0.jpg" border=0 width="190" height="174" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <bR> <div> <B> 19.9.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IR 742nm=19:06UT</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot near left limb, Io now on disk near right limb.</div> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1c0118e0.jpg" border=0 width="273" height="142" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B> 30.8.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=21:00UT G=21:02UT B=21:03UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot near central meridian, Io to left of Jupiter.</div> <bR> <bR> <bR> <bR> <div> <IMG SRC="1c19b8d0.jpg" border=0 width="155" height="141" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B> 30.8.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IR 742nm=20:09UT</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot to right of central meridian.</div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1ad20120.jpg" border=0 width="800" height="274" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <B>12.7.08 Jupiter and the four Galilean satellites plus an interloping star</B></div> <bR> <div> From left to right: Ganymede, Callisto (a close pairing); fainter background star; Io then Europa.</div> <bR> <div> RGB (R=22:34UT; G=22:37UT; B=22:39UT)</div> <div> C14 @ F11; SKYnyx 2-0M; Trutek RGB; Baader UV/IR rejection.</div> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1b6beac0.jpg" border=0 width="190" height="172" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B>20.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=23:07UT G=23:04UT B=23:02UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot to left of image.</div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1b8b9b20.jpg" border=0 width="185" height="178" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B>22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=21:53UT G=21:49UT B=21:51UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot to right of image.</div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1b0bfb10.jpg" border=0 width="191" height="177" ALIGN="LEFT" HSPACE="5" VSPACE="0"></div> <bR> <bR> <div> <B>22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >RRGB (R=22:08UT G=22:07UT B=22:09UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek RGB, Baader UV/IR rejection.</div> <bR> <div> Great Red Spot to right of image.</div> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1b1d4be0.jpg" border=0 width="212" height="190" ALIGN="LEFT" HSPACE="5" VSPACE="0"></div> <bR> <bR> <div> <B>22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=22:52UT G=22:51UT B=22:53UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot to right of centre, 'Red Junior' above and to its left.</div> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1b9d0bb0.jpg" border=0 width="208" height="187" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B>22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=22:59UT G=23:01UT B=23:01UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Great Red Spot to right of centre, 'Red Junior' above and to its left.</div> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1ba13ed0.jpg" border=0 width="275" height="237" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <div> </div> <bR> <bR> <bR> <div> <B> 22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >RRGB (R=23:13UT G=23:14UT B=23:15UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek RGB; Baader UV/IR rejection.</div> <bR> <div> Great Red Spot slightly to right of centre, 'Red Junior' above and to its left.</div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1bbebc60.jpg" border=0 width="235" height="198" ALIGN="LEFT" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> <B>22.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >RRGB (R=23:36UT G=23:37UT B=23:39UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek RGB, Baader UV/IR rejection.</div> <bR> <div> Great Red Spot and 'Red Junior' just to left of CM.</div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="1bc0cb30.jpg" border=0 width="268" height="179" ALIGN="LEFT" HSPACE="0" VSPACE="0"> </div> <bR> <bR> <bR> <div> <B>23.7.08</B></div> <div> <FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >IIGB (IR 742nm=22:02UT G=22:06UT B=22:04UT)</FONT></div> <div> C14 @ F11; SKYnyx 2-0M; Trutek G,B; Astronomik IR 742nm.</div> <bR> <div> Io to left of image.</div> <bR> <div> </div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <B>Jupiter: 2006</B></div> <bR> <div> <IMG SRC="1a00afd0.jpg" border=0 width="266" height="253" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> <IMG SRC="1ac3d130.jpg" border=0 width="317" height="275" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </div> <div> 11.6.06 21:42 UT (left) 22:07 UT (right) with GRS just beginning to rotate into view</div> <bR> <div> Lu075M CCD camera on 30cm Meade LX200 SCT @ F25</div> <bR> <bR> <bR> <bR> <div> <B>Great Red Spot and 'Red Spot Junior'</B></div> <div> <IMG SRC="1a268480.jpg" border=0 width="360" height="328" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">12.5.06 00:06 UTC</div> <div> 30cm Meade LX200 SCT @ F25, Lu075M CCD, Baader UV/IR blocker filter, Trutek R,G,B</div> <div> filters. R = 2108 stack (00:05 UT); G = 2119 stack (00:06 UT); B = 2063 stack (00:07 UT).</div> <bR> <bR> <bR> <div> <B><IMG SRC="1a3a0410.jpg" border=0 width="416" height="321" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>Rare good seeing at low altitude of 22.7 degrees: notice Europa </B></div> <div> <B>to the right of Jupiter</B></div> <div> 26.4.06 00:31 UTC</div> <div> 30cm Meade LX200 SCT @ F25, Lu075M CCD, Baader UV/IR blocker filter, Trutek R,G,B filters.</div> <div> Jupiter was near the star alpha Librae (Zubenelgenubi) and had an angular diameter of 44".5.</div> <bR> <bR> <bR> <div> <B>Jupiter: 2005</B></div> <bR> <bR> <div> <B><IMG SRC="186c8c30.jpg" border=0 width="200" height="195" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </B><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >11.5.05</FONT></div> <bR> <div> Stack of 800 images through TTL Red filter, taken using</div> <div> an ATK-1HS CCD through my 30cm Meade LX200 SCT and</div> <div> x2.5 power mate. Moderate seeing conditions.</div> <bR> <bR> <bR> <bR> <div> <B><IMG SRC="1bd813a0.jpg" border=0 width="385" height="314" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B>Jupiter 2.4.05</B></div> <div> Red 22:51 UTC, Green 22:52 UTC, Blue 22:53 UTC each a stack</div> <div> of about 500 .avi video frames with an ATK-1HS CCD. 30cm Meade</div> <div> LX200 SCT with x2.5 power mate: seeing good but transparency</div> <div> mediocre and variable.</div> <bR> <bR> <bR> <bR> <div> <IMG SRC="19789840.jpg" border=0 width="137" height="132" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> <FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >2.4.05 23:12 UT</FONT> </div> <bR> <bR> <div> <IMG SRC="198988d0.jpg" border=0 width="152" height="141" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> <FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >3.4.05 01:48 UT</FONT></div> <div> </div> <div> Stacks of about 500 .avi video files through TTL Red filter, taken using ATK-1HS CCD through </div> <div> 30cm Meade LX200 SCT and x2.5 power mate.</div> <bR> <bR> <bR> <bR> <div> <B>Jupiter: 2004</B></div> <bR> <bR> <div> <FONT SIZE="3" COLOR="#FFFF00" FACE="Trebuchet MS" ><IMG SRC="171ecd40.jpg" border=0 width="236" height="212" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </FONT><FONT SIZE="3" COLOR="#FFCC33" FACE="Trebuchet MS" > </FONT><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >25.4.04 </FONT></div> <div> </div> <div> <B><IMG SRC="1872cab0.jpg" border=0 width="300" height="171" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </B><FONT SIZE="1" COLOR="#FFCC33" FACE="Trebuchet MS" >14.4.04</FONT></div> <div> 1184 Philips ToUcam Pro web cam images through my</div> <div> 30cm Meade LX200 SCT and x2.5 power mate.</div> <bR> <bR> <bR> <div> <B>Jupiter: 2003</B></div> <bR> <div> <IMG SRC="1a7588d0.jpg" border=0 width="600" height="397" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> 31.3.03</div> <div> Jupiter meets M44 'The Beehive' open star cluster in Cancer.</div> <div> 12 minute exposure with Elitechrome 200 film using Olympus OM2N SLR and 135mm lens.</div> <bR> <bR> <div> <B>HX516 CCD images of Jupiter</B></div> <div> <B>30cm Meade LX200 SCT</B></div> <bR> <div> <B><IMG SRC="172ecd80.jpg" border=0 width="236" height="216" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </B><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >19.3.03</FONT> <B><IMG SRC="173b1970.jpg" border=0 width="177" height="151" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </B><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >18.3.03</FONT></div> <bR> <div> <IMG SRC="174b19f0.jpg" border=0 width="177" height="159" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> <FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >21.2.03 </FONT> <B><IMG SRC="175ecdf0.jpg" border=0 width="236" height="223" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </B><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >5.1.03</FONT> </div> <bR> <bR> <bR> <bR> <bR> <div> <B>Jupiter: 2002 and earlier</B></div> <bR> <bR> <div> <IMG SRC="184f4d20.jpg" border=0 width="500" height="210" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"><FONT SIZE="2" COLOR="#FFCC33" FACE="Trebuchet MS" >16.2.02 18:41 UT</FONT></div> <div> Above: Reprocessing this image revealed surface details on Jupiter's moon </div> <div> Ganymede! Thank-you to Dave Eagle who has identified the feature as </div> <div> Barnard Regio.</div> <div> Stack of 24 x 0.2s Luminance images, 1 x 0.4s for each of Red, Green and Blue. HX516 CCD on my </div> <div> 30cm Meade LX200 SCT @ F23.</div> <bR> <bR> <bR> <div> <B>Comet Shoemaker-Levy 9 hits Jupiter in July 1994</B></div> <div> </div> <div> <IMG SRC="178d8fd0.jpg" border=0 width="472" height="253" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"> </div> <bR> <bR> <bR> <div> <B>The ever drifting Great Red Spot ...</B></div> <bR> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="212" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 46 WIDTH="78"><div> Date</div> </tD> <tD VALIGN=TOP WIDTH="115"><div> System II longitude</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 22.7.08</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 128 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 WIDTH="78"><div> 9.6.06</div> </tD> <tD VALIGN=TOP><NOBR><div> 113.8 +/- 0.6</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 WIDTH="78"><div> 2.6.06</div> </tD> <tD VALIGN=TOP><NOBR><div> 111.5 +/- 2</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 11.5.06</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 110 +/- 3</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 20.3.05</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 102 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 26.3.04</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 89 +/- 2</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 14.2.03</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 85 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 28.3.02</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 83 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 25.10.01</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 75 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 WIDTH="78"><div> 6.1.01</div> </tD> <tD VALIGN=TOP WIDTH="115"><div> 67 +/- 2</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 31.7.99</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 60 +/- 1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 30.12.75</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 51.0</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 24 ><NOBR><div> 30.10.75</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="115"><div> 50.6</div> </tD> </tR> </TABLE></div> <bR> </td> </tr></table></body>