Orion ED80 Lunt80 with DSII Lunt 152 AT 102EDF Celestron 6SE with HyperStar Celestron 6" f/8 Refractor 8" Newtonian/Cassegrain Byers 812 SkyWatcher AZ-EQ6 Celestron 9.25" CPC 1100 with HyperStar 17.5" AstroSystems TeleKit ExploraDome II Life Member and ALCOR - PAS New Orleans ALCOR - PAS Mississippi Waning Moon II Observatory
TV Genesis (non-sdf) TV NP127is Clave 6, Pentax XW 7, Vixen LVW 13, Panoptic 27 2x TeleXtender, 2.5x Powermate LXD75 AutoStar
Photo: Qhy9 mono + qhy 5x2" filter wheel and Baader 2" LRGB, Ha, O3 and S2 filters , Meade DSI Pro 2 as guider, TS 9mm off-axis guider Binoculars: Nikon Action 12x50 Telescopes: Skywatcher Evostar 120ED f7.5 APO + TS 2" flattener Mounts: HEQ5 Pro Eyepieces: Nagler 11mm type6, Pentax XW 7mm, Televue 2X barlow 1.25"
Quote:I was out for about 5 hours Saturday evening trying various alignment procedures.
I did retry the "All-Star" alignment process, this time starting from the last alignment star I used instead of going back to Home. It gave me "Sirius which was in the south near the meridian. After aligning it with the hand controller, it rotated the scope 180 degrees and I adjusted the Alt-Az knobs to center Sirius again. However, it did not give me any better numbers. I guess you can repeat this several times, but I gave up after one try. The first attempt moved Polaris quite a bit off in Az. I will have to try multiple iterations.
I then reset Polaris and went through numerous alignment procedures, mostly 3-star. The numbers seemed to get worse as I went along. The 3-star alignment did 2 stars in the west and one in the east. When I slewed to objects after alignments, the ones in the west were good, but those in the east were mostly off. For instance eastern objects M81 and M65 were not close but M3 was in the eyepiece. I was really getting frustrated. As a last resort I tried a 2 star alignment using the alignment stars suggested by a little iPhone/iPad app named Alt Az Align instead of those suggested by the hand controller. Although the resulting NCP offset was not much better than what I was getting before, when I started slewing to objects, every one was in the FOV whether north, south, east, or west. I am beginning to wonder if this Synscan firmware version still has goto issues. It makes no sense what was going on. If I have some time Sunday evening, I will try the Alt-Az setup. Hopefully I can get better goto results.
Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/
Quote:In alt-az, most mounts don't track at all before alignment, and if they do, it will not be very good. They don't know _how_ to track for a particular spot in the sky until they are _aligned_.
Quote:I'm extremely intrigued by this mount and am considering it as an upgrade for my Sirius EQ-G. I have some concerns, however, over the belt drives. What happens if/when a belt breaks? Especially if it's in alt/az mode? What's the projected lifespan of the belts? Is there a suggested replacement schedule for them?
Quote:Quote:I'm extremely intrigued by this mount and am considering it as an upgrade for my Sirius EQ-G. I have some concerns, however, over the belt drives. What happens if/when a belt breaks? Especially if it's in alt/az mode? What's the projected lifespan of the belts? Is there a suggested replacement schedule for them? How long does a timing belt last on an automobile? The relatively slow speed of the mount, even during go-tos, will mean that this is likely something you'll never have to worry about.
Jeff -----TEC 140, Stellarvue SVR90T, SV115T20 and AT65EDQ refractors,Webster D14, C11 EdgeHD Lunt LS60THa solar scope double stacked with LS60FHaTelevue Pan 41; Ethos 21, 17; Nagler 31T5, 9T6, 7T6, 5T6, 3.5T6; Delos 10, 12, ES25, 14, 9Astro-Physics 900GTO with Rob Miller Tri36M TripodDM-4 Mount-Extension-Tripod w/ Sky CommanderDM-6 Mount-Losmandy Adapter/Extension-Berlebach Planet w/ Argo Navis
C11 Edge HD, C925 XLT TEC 140 (#352) w/ AT65EDQ Skywatcher 100ED w/ WO66SD ZenithStar, ES 80mm Apo Sirius, Atlas EQ-G, "Atlosmandy" Pro AZ/EQ-G, T-Rex Apex,Porta II DBK21AU04, DBK21AU618, DMK21AU618, DMK31AU03, ASI120mm/mc, Hutech 500DH Beaglehaven Observatory (BYO #168)