ngc4565

Another comet is coming up to the plate. Have a look for comet McNaught in the early morning. Here's a chart to help you: http://spaceweather.com/images2007/05jan07/skymap_north.gif

- Για σεληνιακή παρατήρηση προτιμώ το Variable Polarizing Filter http://www.telescope.com/shopping/product/detailmain.jsp?itemID=87&itemType=PRODUCT&iMainCat=3&iSubCat=169&iProductID=87

I have used this model, it is a Nice scope !! http://www.astromart.com/classifieds/details.asp?classified_id=472242

Here is a telescope that was recently purchased by one of the members in our club. We looked at Saturn on Saturday night and the views were quite impressive. Antares is a Canadian Based Company they guarantee 1/6 wave optics on their 8" 10" + 12" Reflectors. http://www.maisonastronomie.ca/maison/eng/cadreeng.htm "Le fabricant Canadien nous propose sa nouvelle gamme de telescope type Dobson. Déclinée en 3 modeles (8", 10", 12"). Miroir 8" (204 mm) F/D 6. Optique garantie 1/6 d'onde. Chercheur 9x50 coude, porte-oculaire 1 1/4" et 2", livre avec 2 oculaires 9mm et 32mm Super Plossl. Base Dobson avec ressort de compression pour un meilleur equilibre du tube, platine porte-accessoires. Son Prix : 399.95 $ " At this price it is indeed an excellent deal and a perfect x-mas gift!! Cheers -

http://www.astromart.com/classifieds/details.asp?classified_id=469849

I'd like to point out that Don has an article in the Jan 2007 Sky & Telescope about processing planetary images. He has some good suggestions for using Registax, and also describes his general processing workflow, including using tools like MaxIm DL for part of it. There's some good stuff here!

Wonderful detailed Image !! http://www.astromart.com/classifieds/details.asp?classified_id=467792

http://www.astromart.com/classifieds/details.asp?classified_id=466719 ... 1,553.00 Ευρο ... Ποιος ο τυχερός;

http://www.astromart.com/classifieds/details.asp?classified_id=466148

- http://www.astromart.com/classifieds/details.asp?classified_id=464302 Όλο και περισσότερα Lightbridge εμφανίζονται στη χρησιμοποιημένη αγορά.

Beautiful Image: http://www.buytelescopes.com/gallery/view_photo.asp?pid=10543 Enjoy!!

- Τελικά διόρθωσα τον υπολογιστή μου έτσι μπορώ να γράψω πάλι στα ελληνικά - Από το Μόντρεαλ Καναδά, θα παρατηρήσουμε από την αρχή του transit μέχρι το ηλιοβασίλεμα - "μόνο" για περίπου 2 ώρες. Πολλές προετοιμασίες γίνονται από τις πολυάριθμες λέσχες αστρονομίας στο Μόντρεαλ για αυτό το σπάνιο γεγονός. Η λέσχη μας προγραμματίζει "public observing sessions" και φωτογραφίες με τo 70mm Coronado και άλλα τηλεσκόπια. Θα χρησιμοποιήσω το νέο μου 93mm f/10.75 Vixen Refractor για αυτό το γεγονός. Ελπίζο να έχουμε καλό καιρό - (weather permitting)

Space Weather News for Oct. 25, 2006 http://spaceweather.com COMET OUTBURST: Astronomers report that Comet Swan has suddenly increased in brightness 4-fold, from magnitude +6 to +4.5. This makes it a naked-eye object in dark skies and a lovely sight through backyard telescopes. The cause of the outburst: A new vein of volatile ice may have opened up in the comet's nucleus. Solar heating transforms this freshly-exposed material into streams of bright, reflective gas and dust. Indeed, backyard telescopes seem to show new tendrils of gaseous material in the comet's long tail. Visit http://spaceweather.com for sky maps, images and more information.

Evans, I just found and uploaded a picture of a Coronado 70mm doublestacked (externally) with a 60mm - see: Τηλεσκόπια και Εξοπλισμός Enjoy.

Evans, this is different question. 1) - Answer to your original question is Yes, it can be doublestacked. I'm not sure though, if double stacking that instrument can be done with absolutely no reduction of it's aperture(70mm). i think that <0.5pass views for that scope can only be delivered through a 60mm filter(the reduction i was talking about...), I hope i'm wrong!!! So, my question is that if there's any possibility of having that scope double stacked keeping it's plenty of aperture!! 2)- Because Coronado ONLY sells 40mm 60mm + 90mm filters you have no choice but to install the smaller 60mm on the Solarmax 70. Unless of course you want to install the 90mm over the 70mm, thus retaining your full 70mm aperture. Check your wallet and see if this 90mm solution is worth the extra $$$. I believe all SolarMax include a T-Max de-tuning filter Our club owns the Solarmax 70 which is used at full Aperture (70mm) and gives us a bandpass of <0.8 angstroms. A member in our club owns a TAK 130mm and uses the Coronado 90mm filter which gives him a Bandwidth of <0.7 angstroms. For more technical data check here: http://www.coronadofilters.com/

Evans, Yes, absolutely it can be doublestacked, it would be <5 pass, super for surface details, very crispy. Problem: $3,000 USD! -

Eνα review summary τού Dennis di Cicco - http://skytonight.com/equipment/3956786.html