Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_30_second_exp_2.thumb.jpg.7719b6f2fbecda044d407d8aba503777.jpg

Aenima

Polaralign / EQ5 goto w/3.32 Firmware

Recommended Posts

I've just recently flashed to the new EQ 3.32 handset firmware.

However, there are still a few things i'm still unsure of - big shock there ;)

When I set-up each time - i cant have a permanent fixture unfortunately - I often get confused as to how exactly I should go about aligning the mount. :huh::confused::eek:

I have heard people say to set the lat for my area (ie 52) , and occasionally its been referred to as a seperate step to getting polaris in the polarscope. This is likely my mistake, but, to my way of thinking, wouldn't getting polaris in the crosshairs of the pol-scope do the same thing as setting my lattitude correctly?

The goal being in both cases to get accurately polar-aligned.?

Which brings me to the other query. After levelling mount and aiming 'N' leg North, then roughly sighting polaris in the P/scope - how would I adjust things to get polaris at the right 'hour' in the reticule? So far I use a combination of adjusting the lat/az bolts and nudging the actual tripod a bit by grabbing the rear two legs while looking through p/scope.

This seems a tad sloppy to me, as the two different ways of adjusting the pole star's position in the reticule might leave room for error, or rather more error than necessary.

Ive not yet tried the new firmware - could anyone be nice and explain the steps so an idiot - thats me btw - can follow them? ;)

Skywatcher actually have quite a good instruction manual for this update on their site, highly recommended, but after a few reads I still need a little clarification.

Regards

Aenima

Share this post


Link to post
Share on other sites

Possibly not question of the month - badly worded and rambling - but anyone have any advice as to the correct way to fine tune the polaralignment ie nudging tripod legs versus adjusting the mounts alt/az bolts?

Just a wee bit hazy on the exact method.

Pweese?

:)

Share this post


Link to post
Share on other sites

There should be 2 thumb wheels above the north leg to adjust in az similar to how you adjust in alt.

Sent from my HTC One X using Tapatalk 2

Share this post


Link to post
Share on other sites

There should be 2 thumb wheels above the north leg to adjust in az similar to how you adjust in alt.

Sent from my HTC One X using Tapatalk 2

Ah, oops, my bad. I knew the way i'd phrased the question was strange, sorry!

I'm actually polaraligning ok, and am mainly trying to fine tune the process. As i'm getting 30 to 40 seconds exposure before trails start, its time to make the effort to align properly.

But i'm not sure if the way i'm going about it is wrong or less accurate. - after getting polaris in the cross hairs of Plr-scpe, and say polaris should be at 12,0clock (is that the top? but anyway..) should I resist the temptation to nudge the tripod legs as i'm looking through the polr/scope? and only try using the alt/az bolts? , as the polrscope is v crude and the procedure should be exact - my biggest problem being the set-up is not permanent - so i'm hoping to learn a lot more about the aspects i'm a bit vague on.

Hopefully anyone that has to do it from scratch each time will maybe have noticed certain do's and dont's or that one way works better than another. (?)

(Also, with the new firmware 3.32 - the polar alignment feature is presumably best done a particular way.)

Really sorry for the confusion, often I have trouble being conscise and tend to babble...... :p

Thank u 4 replying anyway :)

Regards

Aenima

Share this post


Link to post
Share on other sites

I'm actually polaraligning ok, and am mainly trying to fine tune the process. As i'm getting 30 to 40 seconds exposure before trails start, its time to make the effort to align properly.

That's not bad for non permanent unguided.

But i'm not sure if the way i'm going about it is wrong or less accurate. - after getting polaris in the cross hairs of Plr-scpe, and say polaris should be at 12,0clock (is that the top? but anyway..) should I resist the temptation to nudge the tripod legs as i'm looking through the polr/scope? and only try using the alt/az bolts? , as the polrscope is v crude and the procedure should be exact - my biggest problem being

I'm not understanding a) whether you are polar aligning on on the crosshairs or the tiny circle and B) why you would move the tripod rather than use the screws that are more accurate and designed for teh procedure.

(Also, with the new firmware 3.32 - the polar alignment feature is presumably best done a particular way.)

Opinions vary on how well the new function works. I myself found it less accurate than the polar scope method.

The best method I've found so far is the Ascom utility, but i'm trying to get AstroTortilla to work so i can try the plate-solve method.

  • Like 1

Share this post


Link to post
Share on other sites

Many thanks dude,

Appreciate the specific suggestions, its what i need - advice from experience, thank u. :)

Yeah, i'm starting to try getting polaris in the right area of the reticule by using the HA:polaris clock on the handset, but if I get it wrong its going to be -further- out than just centering it, you know, if its the opposite side through the cross to the other side then my PA is worse than roughly central...- if that makes sense/?

So, to get polaris centered whilst looking through polarscope sometimes i grab the back legs to locate polaris initially, and once centered I often give the back legs a nudge to save wear and tear on those soft alt-az bolts - i'm getting the better ones v soon - but due to the various angles involved in aligning the polr-scpe using the bolts might not be a wise move, hence asking the strange questions.

Thank you for ur input - very grateful. :)

Regards

Aenima

Share this post


Link to post
Share on other sites

Yeah, i'm starting to try getting polaris in the right area of the reticule by using the HA:polaris clock on the handset, but if I get it wrong its going to be -further- out than just centering it, you know, if its the opposite side through the cross to the other side then my PA is worse than roughly central...- if that makes sense/?

you can't go wrong with where the little position circle should be if you use something like the free polar finder software.. (http://www.polarfinder.com)

  • Like 1

Share this post


Link to post
Share on other sites

you can't go wrong with where the little position circle should be if you use something like the free polar finder software.. (http://www.polarfinder.com)

OK. Thats reassuringly simple, though its sometimes confusing when the RA is rotated to where the reticle overlay of cassiopiea and ursamajor line up - is it an accurate estimation or should I go by the hour-angle and place polaris on the circle regardless of whether that little bubble matches up? ie using polarfinder to put polaris on the larger circle without having to get the bubble to that exact position as well?

Again, both thank u 4 the advice and apologies for the rambling ;~)

Edit: your astrobin jupiter is very nice, btw

Regards

Aenima

Edited by Aenima

Share this post


Link to post
Share on other sites

I find that I can get about 2 minutes unguided by just putting the little bubble as near to where the software shows me as I can. I don't use the setting circles at all as i find they slip too easily.

Thanks for you comment.

Share this post


Link to post
Share on other sites

2mins is great.

I think, but not sure, that my mount is not allowing me to improve the exp. times regardless of what I do, but alot of folks have managed at least a couple of mins. I cant complain really untill i've tried to set-up properly rather than roughing it, so basically until my budget allows the mount upgrade there is a challenge for me to tackle :p

I ordered the revelation 5x barlow, off subject here, how do you think it'll perform on my 200p?

Again, many thanks.

Regards

Aenima

Share this post


Link to post
Share on other sites

You'll need either extremely good conditions or a camera with high frame rates to get good results, but you may be lucky. I use a 2.5x and a 2x or 1.5x barlows stacked and sometimes with upto 120mm of extension tubes so not too far off 5x. I think the jupiter you referred to was with 2.5+1.5 on my 200p.

Edited by StuW
  • Like 1

Share this post


Link to post
Share on other sites

Thats the one, yes - absolutely brilliant. You use extensions to increase power? Didn't think of that, good plan. :)

Thanks for the help.

Regards

Aenima

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By oyabuns
      I own a polarscope from FLO for a couple of months now, however I have never been able to get a correct polar alignment.
      When I screw in the polarscope in the mount completely then the 3 angle is at the top (see picture). 
      However with this polaris keeps moving out of the circle when I polar align it. (Polar alignment seems not to work)
      When I loosen it I can get the reticule to 0, however the polarscope is very loosely in the mount.
      How to best get the polarscope correctly into the mount and get an accurate polar alignment. 
       
       



    • By Bigwings
      I need my garage back so am selling my excess mounts.
      1. EQ5 motorised on both axis.
      No tripod this was mounted ony pier. Tracks well. 
      £100 Collect only because of weight .
      2. An older type Skywatcher AZ goto mount that came with my SkyMax 127. Good condition .
      £100 Collect please but might be able to send if you arrange courier.
      SOLDto Pitbull ...thanks
      3. AZ GTi  goto in excellent condition . Still have the box so can send at cost.
      The pic shows it with a telescope on it which is not included.
      £200
      Location just north of Newark on A1
      Clear Skies.
      Thanks for looking
      All Sold.
      mods VB please move
       
       
       



    • By Phillips6549
      Complete beginner question regarding using this mount.
      When I have tried to set up and align the mount , the goto targeting is off by many degrees.  Here's what I do - can someone tell me what I'm doing wrong!?
       
      With the power off:
      Align the tripod and mount to North and, with the clutches released, set the declination to my latitude (52deg 28' N). and the mount in the weights-down home position.
      Lock the clutches and fine tune the alignment on Polaris using the mechanical adjustments on the mount.
       
      Turn the power on:
      Set up the date, time and location, elevation etc. in the handset (noting the American Date format and Longitude first (set to W 1deg 48')
      DST = Yes
      Select 1 Star align
      Pick a star, I usually try Procyon or Betelguese depending on the time.
      The scope slews to vaguely the right direction but actually nowhere near.  It can take 2 or 3 minutes of manual slewing to centre the star in the eyepiece.  Finishing, of course, with an up and right movement.
      Finally, press Enter to complete the alignment ==> Alignment Successful says the handset optimistically.  
      Now from the object menu pick another target.  Try, say, Polaris which was where I started and ... nowhere near it.   It's the same regardless of the selected target.
       
      I have tried 2 star alignment and 3 star alignment, a factory reset before starting,  but nothing seems to work.   Once i'm lined up on a target the mount tracks nicely - it just won't go where I want it to!
      Not yet at my wits end but - Help!  
      Mark
    • By Greg6498
      Hello all!
      I have been using my Skywatcher 8” Dobsonian for some time now, and decided I wanted a good refractor with an EQ mount as my next scope. I chose the Skywatcher Evostar Pro 80mm with an LX70 EQ5 mount. This seems to be a great scope to compliment my Dob, but I'm still getting used to the EQ mount! Found some good Youtube videos and am hoping for a clear night soon to really give it a workout! Any advice is appreciated!

    • By kman42
      I have an EQ5 telescope mount which i use for astrophotography. I have modified it with a motorised RA axis using a bipolar stepper motor - my thread for the build is here .
      I want to expand the mount's tracking ability by motorising the DEC axis and using a guide scope/camera. I generally use the mount in fairly remote locations so would like to use a raspberry Pi for portability.
      I understand that I'll need to use a Raspberry Pi Camera Module for the guide camera. 
      The capability I want is:
      1. guide the mount along RA and DEC axes using a guide star as feedback
      2. track the mount using the RA axis only, and if possible continuously take 20-30 second exposures on the guide camera (this functionality is optional, but would assist in polar alignment of the mount)
      I don't want any GOTO capability. I am very new to RPi and need some help:
      - do I need to write code for this, or is there existing programming available for what I want to do?
      - is it possible to avoid the use of screens (in the field)? My preferred option would be to flick a switch to start and stop the guiding, with another switch for alignment mode (or something simple like this).
      - do I need to use any particular stepper motors/drivers for raspberry Pi? I'm using a bipolar stepper motor running quarter steps, with an A4988 stepper driver
      - is the RPi 3 Model B+ the unit I should buy?
      Thanks
       
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.