ICEINSPACE
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Waning Crescent 12.1%
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28-07-2017, 12:50 PM
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Novichok test rabbit
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Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,389
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Another ALDI telescope
Next Saturday, ALDI will be selling a 76/700 (f/9) Newt on an equatorial mount for $99.95.
Could be worth a crack for the kids - it's another Nat Geo. I expect there will be lots of plastic, bad at best EP's and shake-o-matic mount and tripod but who knows - those little Dobs worked better than many claimed (I still have one for the girls here now repainted yellow and the image it gives with a cheap Plossl is not too bad!).
It's in their new catalogue in store, but not online yet, THOUGH you can JUST see a snippet of the scope in this page: https://www.aldi.com.au/en/special-buys/
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28-07-2017, 01:05 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Hi Lewis
Have you ever lined up.at Aldi on Saturday morning?
Its like a boxing day sale.
I cheat.
I take my walking frame and shuffle to the head of the mob.
But when the doors open they can run.
What fantastic marketing.
They have their regulars well trained.
I will get one...may make a great guide scope do you think?
Alex
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28-07-2017, 01:10 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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I think it would be interesting to see what photos you could do with it...It may have a phone fitting...if not it should.
Alex
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01-08-2017, 02:24 AM
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Registered User
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Join Date: Mar 2014
Location: Frankston South
Posts: 1,283
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Looking at the specs it has a low magnification of 28X, which means a 25mm eyepiece. And a high magnification of 233X which implies 6mm eyepiece Barlowed 2X. Though three eyepieces are pictured.
The Barlow is useless of course, as the power is too high.
But the 6mm eyepiece would give 116X, which isn't too bad, though a 5mm eyepiece would have been better.
And a 32mm eyepiece would have given a lower powered, wider field of view than the 25mm eyepiece, though 25mm is still okay.
If the eyepieces are Plossls it wouldn't be a bad buy for a newbie using say Tirion's Bright Star Atlas. If they are shocking Huygens eyepieces, then more cost will be involved buying replacement Plossls.
The big issue is the finderscope - is it a decent one or one of those stopped down ones, which give sharpish star images, but with lousy low light grasp (making it fairly useless except for on planets)?
One would have to open the box at Aldis to find out.
Regards,
Renato
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01-08-2017, 07:06 AM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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I didn't get to go.
Alex
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01-08-2017, 09:22 AM
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Registered User
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Join Date: Sep 2013
Location: Cairns
Posts: 1,608
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I cheaply picked up something like this about 20 years ago, as a curiosity.
It wished that as a youth I had taken this option over the dept-store 60mm refractor. It gathered appreciably more light than a 60mm but had about the same resolution.
However, similar to the dept-store 60mm refractor, it needed better EPs and a better mount. (Back in the 1960s, Dept-store refractors actually came with decent finders.)
I gave it away to a co-workers son who was showing an interest in astronomy.
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01-08-2017, 02:19 PM
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Registered User
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Join Date: May 2016
Location: Brisbane
Posts: 834
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The eyepieces appear to be Huygens, so you might as well bin them as soon as you open it, but for $100 it might be worth checking the scope out as a quick and dirty grab-n-go scope - you can always re-gift it to a non-favourite niece or nephew I guess.
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01-08-2017, 03:14 PM
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SQM 21.98 mag./arc sec2
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Join Date: Nov 2016
Location: As far from Suburbia as practical
Posts: 452
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My son recently inherited a 2nd hand one from a friend who couldn't see anything through it. Once it was collimated, we ran it with some old Celestron Plossl's with fairly respectable results (for a retail of $100.00.)
An ideal scope to buy. strip and use the parts for younguns to make their own steampunk truss scope?
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01-08-2017, 03:16 PM
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SQM 21.98 mag./arc sec2
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Join Date: Nov 2016
Location: As far from Suburbia as practical
Posts: 452
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[QUOTE=xelasnave;1325938]Hi Lewis
Have you ever lined up.at Aldi on Saturday morning?
Its like a boxing day sale.
I cheat.
Take your cat next time?
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01-08-2017, 03:54 PM
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Earthling
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Join Date: Mar 2005
Location: Hunter valley. nsw
Posts: 1,117
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I purchased one of their 76mm dobsonian style scopes 2yrs ago , once the secondary was realigned with the eyepiece ( needed longer screws) and I'd removed the cell screws and configured a simple adjustment mechanism, I collimated it.gives nice low power views.
Philip
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01-08-2017, 05:00 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Who was it who surveyed the Southern constalations,with a half inch refractor
He would have liked one of these
Alex
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01-08-2017, 05:01 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Constellation s
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01-08-2017, 05:01 PM
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Novichok test rabbit
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Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,389
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He had a LOT LOT LOT darker skies than today's light pollution destruction of the night sky.
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02-08-2017, 08:52 PM
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Registered User
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Join Date: Apr 2017
Location: Perth Hills
Posts: 272
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I do not need another telescope...
I do not need another telescope...
I do not need another telescope...
I do not need another telescope...
If I say it enough times between now and Saturday I might just be able to resist the lure of an alleged bargain (the same scopes seem to go for quite a lot more elsewhere)..
I do not need another telescope...
I do not need another telescope...
I REALLY do not need another telescope, especially a dinky little one like that....
Looks kind of cute though..
I do not need another telescope...
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02-08-2017, 09:30 PM
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Registered User
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Join Date: May 2016
Location: Brisbane
Posts: 834
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Yeah, they appear to be $190 on special at Ozscopes (normally $275), so for $100 it's probably worth a shot. I'll convince my wife that our 10 year old NEEDS one for school...
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05-08-2017, 03:16 PM
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Registered User
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Join Date: May 2016
Location: Brisbane
Posts: 834
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Well, I bought one. Got there at 7.45am expecting hoards of people after Alex's dire warnings, but maybe the toxic chemical spill near the Hyperdome yesterday scared the budding astronomers away. Anyway, they had 18 in stock, so I only had to elbow one old lady out of the road, and that was mainly for fun and really only a half-hearted effort on my part.
I will preface the following comments by admitting that I've always been a dob person, so setting up an EQ mount was a new experience. The tripod is VERY lightweight, as you'd expect for $99.95, but goes together easily, as does the mount itself. All up it took less than an hour to assemble, and the Huygens eyepieces are indeed the sh!te you'd expect, but a couple of spare plossls lying about indicated that the scope, in the daytime at least, provides some pretty reasonable views. The finderscope is complete balls, but the scope itself was easy to collimate, if slightly odd looking down the tube to such a tiny primary. You certainly wouldn't want to bump it too heavily in the dark, but it looks quite a nice little scope for a youngster.
I've balanced it but haven't gone too deeply into the mumbo jumbo (to me) of the other axis settings - as it's for my son I don't know if this will be a big deal when we try it out tonight, but it may prompt me to become more eq-savvy. Anyhoo, first light report tomorrow morning, possibly accompanied by photos of me breaking it over my knee or hurling it onto the neighbour's roof.
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05-08-2017, 04:14 PM
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Registered User
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Join Date: Sep 2013
Location: Cairns
Posts: 1,608
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Quote:
Originally Posted by gaseous
... and the Huygens eyepieces are indeed the sh!te you'd expect, but a couple of spare plossls lying about indicated that the scope, in the daytime at least, provides some pretty reasonable views...
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It would be wise to try the Hugens EPs anyway, coz they may work well at F9.
Sure the fields will be small, but when yours son's friends are over all eating sticky lollies and wanting to look through the scope, U may not want them to use your plossls.
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05-08-2017, 04:38 PM
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Registered User
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Join Date: May 2016
Location: Brisbane
Posts: 834
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Quote:
Originally Posted by Tropo-Bob
It would be wise to try the Hugens EPs anyway, coz they may work well at F9.
Sure the fields will be small, but when yours son's friends are over all eating sticky lollies and wanting to look through the scope, U may not want them to use your plossls.
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Well, that's true enough. The Huygens FOV seemed about 1/3 the plossl FOV (and they're only cheap plossls), so I'd rather sacrifice the Huygens to a greasy/sticky fate.
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05-08-2017, 05:10 PM
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Registered User
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Join Date: Apr 2017
Location: Perth Hills
Posts: 272
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Quote:
Originally Posted by gaseous
You certainly wouldn't want to bump it too heavily in the dark, but it looks quite a nice little scope for a youngster.
I've balanced it but haven't gone too deeply into the mumbo jumbo (to me) of the other axis settings - as it's for my son I don't know if this will be a big deal when we try it out tonight, but it may prompt me to become more eq-savvy.
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Hi Patrick,
To be honest, I wouldn't bother using the EQ capability of the mount initially. They can be fiddly to align properly and (unless you are using a motor drive to track and photograph a target) the pay-off is pretty modest. They can be a pain for a beginner to use. (In my experience anyway).
Fortunately it looks as if the mount on that kind of unit can be used quite simply as an Alt/Az for the first viewings - until such time as you feel like tackling the EQ stuff. (Apologies if you already know this !  )
1. Tighten the Latitude adjustment in position. For Alt/Az use, it doesn't matter whether you leave it at 0 or set it to your latitude.
2. Swing the scope over so that the counterweight bar is horizontal - i.e with the weight at one side and the scope at the other. Lock the clutch/knob that holds that axis in position.
3. You should now have a perfectly usable Alt/Az setup. The axis next to the tube itself does the up/down (either freehand or by locking it and using the adjusting knob). And the whole thing should rotate around the head of the tripod for the left and right. Much simpler for a newbie/youngster (or old fart like me...) to get the hang of.
I'd agree about not chucking the supplied eyepieces. To any youngster who isn't familiar with higher quality gear they should still give a half decent view while they learn the ropes (and maybe drop a couple too...). Save the better stuff for later.
Good luck with it - I'm sure you'll both have some fun .
Cheers,
Chris
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05-08-2017, 05:18 PM
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Registered User
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Join Date: May 2016
Location: Brisbane
Posts: 834
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Thanks Chris, yes I think deep in my heart the Alt-Az scenario is much more likely to play out in the short term. Either way, it'll be simpler than pulling the 16" goto dob out at a moment's notice.
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