· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> Sketching Previous   Index   Next   Threaded   Pages: 1 Aaron sage Reged: 08/28/06 Posts: 299 Loc: Eugene OR Comet C/2006 W3 Christensen (help me figure out EP       #3247969 - 07/31/09 12:24 AM Edit   Reply   Quote Quick Reply   My second Comet observation/sketch. I forgot to mark the EP/magnification, can someone help me out? The choices are: 7mm 217x (don't think so) 10.5mm 145x 17mm 89x 35mm 44x (don't think so) Comet C/2006 W3 Christensen -------------------- 12" Lightbridge Telrad, StellarVue F50 7mm Nagler I, 10.5mm XL, 17mm Stratus, 35mm Stratus TV 2x Big Barlow Lumicon UHC My Sketches and Photos Eugene OR Eagle's Rest OR Post Extras:       JayinUT I'm not Sleepy Reged: 09/19/08 Posts: 944 Loc: Utah Re: Comet C/2006 W3 Christensen (help me figure out EP [Re: Aaron]       #3248922 - 07/31/09 02:24 PM Edit   Reply   Quote Quick Reply   Sorry Aaron, can't help on the magnification as I haven't viewed the object (I'd guess the 17mm at 89x based on the FOV but its just a guess) but your observation has gotten me curious about it . . . looks like it is a wonderful object to view and I like the details in your sketch. -------------------- Jay in Utah --------------------------- Location: Lat: 40.514N Long: -112.032W Mortal as I am, I know that I am born for a day. But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the earth. — Ptolemy, c.150 AD My Blog Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 0 registered and 1 anonymous users are browsing this forum. Moderator:  Charlie Hein, cildarith  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 132 Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   NEO   General Observing   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Other* -----   Science of Astronomy & Space Exploration   AstroWebsites   Space Rocks*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements CN Forums Home

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