Who you jivin' with that Cosmic Debris? "all science is either physics or stamp collecting" -- Lord Rutherford
Quote:Interesting, Sky & Telescope puts the transit at 4:53 UT 11/25, and that works out to 9:53 MST 11/24, and S&T says the GRS (Great Latte Spot) should be visible for 50 minutes from transit to rise or set. Wolfram Alpha puts transit an hour earlier and says it should be visible for more than two hours either side of transit.Who do you trust?
Joined June 2012: Location, Ottawa, Ontario
Mes télescopes et jumelles:
150mm F5 Newt on EQ5, 127mm Mak Cass on AZ4
Oberwerk BT70-45 and 15X70 SkyMasters
Nikon Action 8x40 binos C4-R, mountless 114NT Everglades Astronomical Society "When the Moon is a couterfiet, better find the one that fits, better find the one that lights the way for you." ISTAR Scope Club
Quote:I use the computer program Jupiter2 . It's freeand works well.
Quote: you must correct the location of the GRS it defaults to 129 degrees and thats wrong. fortunately it has a link to a website with the correct and current location.
Quote:But from the screenshots on the Jupiter2 webpage it looks like the default value for the GRS longitude may have been right for the time the program was compiled.
Quote:The data on the link to the correct transit time is a raster graphic that would be hard to extract the correct transit time from.
First and foremost observing love: naked eye.
Last but not least, telescopes.
And I sometimes dabble with cameras.
Quote:Just to be sure what your all saying. In the Jupiter 2 program. One has to change the "absolute position of Jupiter box" from 129 to 188?
Quote:Wolfram Alpha is using very old data for the GRS position. They state it's at longitude 138, whereas we're currently using 184.
Quote:Well, I sent them feedback on that query, they usually fix their bugs.
Quote: We have received your feedback regarding Wolfram|Alpha.The issue you reported has been fixed on the site. See http://www.wolframalpha.com/input/?i=great+red+spotThank you for helping us improve Wolfram|Alpha.Best wishes,
Bausch & Lomb RV-5+ 130mm F/5.5 Reflector Meade NG70SM F/10 Refractor Meade 102mm F/7.8 Refractor OTA Vixen 4mm NPL Agena 6mm & 9mm EWA Meade 9mm & 25mm MH Agena 20mm SWA Meade 26mm S4000 Meade #126 2x
Quote:A beautiful clear night here, at about 23:30pm i point my 130mm Newt with a 6mm EP to Jupiter and i believe i saw the GRS.
Meade LS8 ACF Meade 2" Diagonal Apetura 10" Tweakers Package Meade ETX-125, ETX-90 for Solar Celestron 80mm APO PST Meade SWA - 34mm,28mm,24mm,20mm Brandon 32mm, 16mm Vernonscope 40mm Erfle 2" ES 14mm,11mm,6.7mm 8.8 Nagler 13mm T6, Pan 19mm Meade 12.4 Pl,9.7mm, 15mm SP Meade 2x Shorty Barlow Powermate 2.5x WO Bino Viewer, 20mm 66* pair Denkmier 2 Super System Meade Nebula Filters Meade 9x60 Bino Vivitar S1 8x42 Bino Canon T2i, 18-55mm, 50mm 1.8, 55-250mm