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Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all) Dave Mitsky Postmaster Reged: 04/08/02 Loc: PA, USA, Planet Earth Re: Comet C/2011 L4 (PANSTARRS) [Re: BrooksObs]       #5710693 - 03/03/13 01:53 PM Edit   Reply   Quote Quick Reply   There's an image of Comet PanSTARRS posted at http://spaceweather.com/gallery/indiv_upload.php?upload_id=77134 that may be the first one captured from the northern hemisphere. Dave Mitsky Post Extras:       Tonk Postmaster Reged: 08/19/04 Loc: Leeds, UK, 54N Re: Comet C/2011 L4 (PANSTARRS) [Re: Dave Mitsky]       #5710799 - 03/03/13 02:55 PM Edit   Reply   Quote Quick Reply   Quote: may be the first one captured from the northern hemisphere Ah the IR filter trick Post Extras:       Ptarmigan Lagopus lagopus Reged: 09/23/04 Loc: Arctic Re: Comet C/2011 L4 (PANSTARRS) [Re: Tonk]       #5711190 - 03/03/13 06:35 PM Edit   Reply   Quote Quick Reply   Comet PANSTARRS is at magnitude 2.3. http://www.skyandtelescope.com/observing/highlights/185665152.html Edited by Ptarmigan (03/03/13 06:38 PM) Post Extras:       Yaar sage Reged: 02/18/09 Loc: 24.94N Re: Comet C/2011 L4 (PANSTARRS) [Re: Ptarmigan]       #5711870 - 03/04/13 01:58 AM Edit   Reply   Quote Quick Reply   The daytime skies here in Karachi have been a beautiful crisp blue and the night time skies wonderfully transparent since February's last week. Eagerly looking ahead to the evening sightings of the comet. Haven't been able to edit the ssystim.ini file within the <Documents&settings\<username>\application data\stellarium\data> folder because the parent folder is locked and I cannot open it, so not exactly sure when PanSTARRS would first appear above the horizon at dusk from my city (24.9 N). Anyway I hope the excellent skies all the way to the horizon continue to be around. I have a cross-country flight scheduled for the 10th around dusk Trying to secure a left window side seat on that 747, because it would be facing west I've already seen the Milky Way, Omega Centauri and a meteor from an airplane window: http://dawn.com/2013/02/16/is-it-a-plane-is-it-a-ufo-no-it-is-the-iss/ Comet PanSTARRS would be a very nice addition to the list. Let's see how it goes. Post Extras:       Dave M Postmaster Reged: 08/03/04 Loc: N.E.Ohio Re: Comet C/2011 L4 (PANSTARRS) [Re: RobK]       #5712275 - 03/04/13 10:52 AM Edit   Reply   Quote Quick Reply   Beautiful shot Rob.. I cant wait to see it here up North .. Post Extras:       tezster professor emeritus Reged: 07/14/09 Loc: Missisauga, Canada Re: Comet C/2011 L4 (PANSTARRS) [Re: Dave M]       #5712366 - 03/04/13 11:53 AM Edit   Reply   Quote Quick Reply   I really hope the comet keeps getting brighter (or at the very least, stays at around mag two-ish) for the next couple of weeks Edited by tezster (03/04/13 11:54 AM) Post Extras:       c_lou sage Reged: 08/02/04 Loc: West Central, WI Re: Comet C/2011 L4 (PANSTARRS) [Re: tezster]       #5712728 - 03/04/13 03:21 PM Edit   Reply   Quote Quick Reply   I would be happy with a mag 2-ish comet. My girls would get to see their first naked eye comet. Post Extras:       dan777 professor emeritus Reged: 11/16/07 Loc: Indiana Re: Comet C/2011 L4 (PANSTARRS) [Re: Yaar]       #5712860 - 03/04/13 04:34 PM Edit   Reply   Quote Quick Reply   Quote: Haven't been able to edit the ssystim.ini file within the <Documents&settings\<username>\application data\stellarium\data> folder because the parent folder is locked and I cannot open it, so not exactly sure when PanSTARRS would first appear above the horizon at dusk from my city (24.9 N). You no longer have to add orbital elements manually. You can go to Configuration Window, Plugins, Solar System Editor, Solar System, Add new solar system objects. Post Extras:       Yaar sage Reged: 02/18/09 Loc: 24.94N Re: Comet C/2011 L4 (PANSTARRS) [Re: dan777]       #5713259 - 03/04/13 08:11 PM Attachment (30 downloads) Edit   Reply   Quote Quick Reply   Thanks a bunch Dan! It worked. Here are the elements I'm using: [PANSTARRS] name = C/2012 L1 (PANSTARRS) parent = Sun radius = 10 oblateness = 0.0 halo = true color = 1.0,1.0,1.0 tex_halo = star16x16.png tex_map = nomap.png coord_func = comet_orbit orbit_TimeAtPericenter = 2456329.3937 orbit_PericenterDistance = .337628 orbit_Eccentricity = 1.0 orbit_ArgOfPericenter = 331.2931 orbit_AscendingNode = 67.5247 orbit_Inclination = 59.95487 lighting = false albedo = 1 orbit_visualization_period = 365.25 But it seems that Stellarium is plotting the comet one month ahead of where it should be. The 5th Feb position is perhaps where it should be on 6th or 7th March, no? Post Extras:       Tonk Postmaster Reged: 08/19/04 Loc: Leeds, UK, 54N Re: Comet C/2011 L4 (PANSTARRS) [Re: Yaar]       #5713344 - 03/04/13 08:45 PM Edit   Reply   Quote Quick Reply   Newton would weep at that path! Post Extras:       dan777 professor emeritus Reged: 11/16/07 Loc: Indiana Re: Comet C/2011 L4 (PANSTARRS) [Re: Yaar]       #5713688 - 03/05/13 12:24 AM Edit   Reply   Quote Quick Reply   Quote: But it seems that Stellarium is plotting the comet one month ahead of where it should be. I think you're getting C/2011 L4 PanStarrs mixed up with C/2012 L1 Linear Post Extras:       AlaskaIsCold member Reged: 11/16/11 Loc: Anchorage, AK Re: Comet C/2011 L4 (PANSTARRS) [Re: Dave M]       #5713796 - 03/05/13 02:45 AM Edit   Reply   Quote Quick Reply   I am hoping that I can image it with my Wide Field Newtonian. 610mm 6" should be zoomed in enough to see something (Hopefully not -too- close up) If I can see something -really- good then I get to break out the 4x5 with the 90mm equiv. lens and hope for the best. Post Extras:       BrooksObs super member Reged: 12/08/12 Re: Comet C/2011 L4 (PANSTARRS) [Re: Yaar]       #5714172 - 03/05/13 10:48 AM Edit   Reply   Quote Quick Reply   Quote: Thanks a bunch Dan! It worked. Here are the elements I'm using: [PANSTARRS] name = C/2012 L1 (PANSTARRS) parent = Sun radius = 10 oblateness = 0.0 halo = true color = 1.0,1.0,1.0 tex_halo = star16x16.png tex_map = nomap.png coord_func = comet_orbit orbit_TimeAtPericenter = 2456329.3937 orbit_PericenterDistance = .337628 orbit_Eccentricity = 1.0 orbit_ArgOfPericenter = 331.2931 orbit_AscendingNode = 67.5247 orbit_Inclination = 59.95487 lighting = false albedo = 1 orbit_visualization_period = 365.25 But it seems that Stellarium is plotting the comet one month ahead of where it should be. The 5th Feb position is perhaps where it should be on 6th or 7th March, no? Little surprise, Yaar, that Stellarium is giving falses positions in that every one of the orbital elements you've listed is inaccurate for C/2011 L4. In fact, the orbital inclination value is tens of degrees off and even the name you indicate is incorrect! The bright Comet PanSTARRS C/2011 L4, not L1. I don't know where you might have obtained these elements, but in the future I'd certainly not rely on that site again for elements! BrookObs Post Extras:       Yaar sage Reged: 02/18/09 Loc: 24.94N Re: Comet C/2011 L4 (PANSTARRS) [Re: BrooksObs]       #5714263 - 03/05/13 11:38 AM Edit   Reply   Quote Quick Reply   Thank you Dan and BrooksObs. I copied the (mixed-up) elements from this forum and also from the SourceForge.net forums. I'm glad you guys caught the embarrassing error. Now I opened the configuration window and under the "Solar System tab" of the "Solar System objects" window, clicked the "Import orbital elements in MPC format" button at the bottom of the tab. An "import data" window opens. Under the "Lists" tab of the "Import data" window, I selected the "Type" as "Comets" and the "Source" as "Download a list of objects from the internet"; under "Or select from the list" I chose "Select bookmark" and then "MPC's list of observable comets," and then clicked the button "Get orbital elements." A list of objects found was loaded. Scrolled down and checked PanSTARRS (the correct one!) and ISON. Thanks for the help guys PanSTARRS is already above our horizon at dusk but it still very low. Post Extras:       Tonk Postmaster Reged: 08/19/04 Loc: Leeds, UK, 54N Re: Comet C/2011 L4 (PANSTARRS) [Re: Yaar]       #5714369 - 03/05/13 12:35 PM Edit   Reply   Quote Quick Reply   I'd suggest that you get orbital elements from MPC direct and not secondhand mangled data The index for all comets is here http://minorplanetcenter.org/iau/Ephemerides/Comets/index.html and from the list - C/2011 L4 (Pan-STARRS) - http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c&o=CK11L040 and files that hold the full MPC comet list can be uploaded from here for various software packages - http://www.minorplanetcenter.net/iau/Ephemerides/Comets/SoftwareComets.html Post Extras:       nytecam Postmaster Reged: 08/20/05 Loc: London UK Re: Comet C/2011 L4 (PANSTARRS) [Re: RobK]       #5714394 - 03/05/13 12:46 PM Edit   Reply   Quote Quick Reply   Beautiful image Rob - best I've seen - I love the dark sky Post Extras:       cpsTN Carpal Tunnel Reged: 04/26/07 Loc: Rutherford Co, TN Re: Comet C/2011 L4 (PANSTARRS) [Re: Dave Mitsky]       #5714588 - 03/05/13 02:29 PM Edit   Reply   Quote Quick Reply   According to the picture taker, it was taken at NOON in France. This would make it about 6am EST the same day. He said is was "only visible during the day". Post Extras:       Tonk Postmaster Reged: 08/19/04 Loc: Leeds, UK, 54N Re: Comet C/2011 L4 (PANSTARRS) [Re: cpsTN]       #5714603 - 03/05/13 02:35 PM Edit   Reply   Quote Quick Reply   Quote: He said is was "only visible during the day". Yeah figures as in N hemi on that date comet rose after sun and set before sun Post Extras:       OldDeadOne Pooh-Bah Reged: 09/09/06 Loc: West Virginia Re: Comet C/2011 L4 (PANSTARRS) [Re: Tonk]       #5714641 - 03/05/13 02:57 PM Edit   Reply   Quote Quick Reply   A corrected one needs to be made for stellarium...or what do I need to replace to make it correct? Post Extras:       drbyyz sage Reged: 11/04/12 Loc: Summerville, SC Re: Comet C/2011 L4 (PANSTARRS) [Re: tezster]       #5715115 - 03/05/13 06:58 PM Edit   Reply   Quote Quick Reply   Quote: I really hope the comet keeps getting brighter (or at the very least, stays at around mag two-ish) for the next couple of weeks Sky and Telescope now reporting that it looks likely to be brighter than mag 2 on Mar. 10th. Scouting out a good viewing location now! Just hoping the weather cooperates at least one or two days from the 10th onward, I'd like to get one night in of observing/sketching it and another night of imaging it. Post Extras:       Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all)

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