Author Topic: First Telescope  (Read 780 times)

Aaron Maggot

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First Telescope
« on: December 24, 2017, 12:15:32 AM »
Hey guys, I just recently purchased my first telescope from my supervisor at work.  Orion Starmax 127mm Maksutov-Cassegrain, I think I got a great bargain on it.  Though it did have some things missing such as counter weights.  I only have one eyepiece that's a 25mm plossl.  I was able to see Saturn and the rings separated out of the planet but it was very compact thought only the 1 EP.

Can I be able to see more information of Saturn with a smaller number EP or might it became blurry and unfocused at higher mags.  I think that the 25mm EP gives me about 60x or 64x atm.  And everything else should I be able to see with only this 1 EP, I really do reside in a light polluted location.  However, there's a mountain top that's about 25m push for me that I could access.



Jon Beckner

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Re: First Telescope
« Reply #1 on: December 27, 2017, 01:46:10 PM »
With a 1540mm focal length, and a 25mm EP, you're magnifying at around 62x. The Starmax has a theoretical max mag of 254x, but that's in perfect seeing and dark sky sites, so you'll seldom get that good. That said you have a bunch of ways to go. Get a 9 or10mm, and you're at 171x and 154x respectively. You'll get a lot more magnification.

But...

Make sure your collimation is good.

..Joe

bolgsorchumsdea

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Re: First Telescope
« Reply #2 on: December 31, 2017, 03:29:06 PM »
When you go to buy more eyepieces, check the "eye relief"; this is how far your eye must be from the glass for optimum viewing. Folks who wear eyeglasses while viewing should use eyepieces with at least 15mm of eye relief. Plossl eyepieces, the most commonthese days, have an eye relief approximately half their focal length. This means that, as their magnification goes up, they require placingyour eye uncomfortably close to the glass; oftenso close that your lashes will brush the eyepiece.


Mark Richmond

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Re: First Telescope
« Reply #3 on: December 31, 2017, 04:58:34 PM »
With a Mak your eyepiece decision wont be as constrained. Some nice good value eyepieces are either the Astro-Tech Paradigm ($60), Meade HD-60 5000, or the Celestron X-Cel LX. The Celestron Luminos eyepieces are something you may look into as well. I agree that an 8-9mm would serve you well. Also the short focal length eyepieces with a Mak would be super cool cruising the moon's surface and checking out the details

monsresiwor

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Re: First Telescope
« Reply #4 on: January 04, 2018, 08:45:57 PM »
The Zhumell Planetary Series eyepieces are worth a look also; good FOV, good eye relief, real good pricing...

Chaudhari Evans

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Re: First Telescope
« Reply #5 on: January 08, 2018, 04:07:49 AM »
Quote
The Zhumell Planetary Series eyepieces are worth a look also; good FOV, good eye relief, real good pricing...


If you can find them- I've been waiting to get a a 12.5 and a 9mm, and telescopes.com has been sold out for yonks!

..Joe

James Pederson

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Re: First Telescope
« Reply #6 on: January 10, 2018, 10:46:57 PM »
Sorry buddy, I guess I bought the last two.

turtnaneade

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Re: First Telescope
« Reply #7 on: January 11, 2018, 09:27:25 AM »
A better option than the top of the mountain might be a bit lower on the side least facing the worst light pollution source. Use it to get a darker observing spot.
+1 for that 125x - 175x magnification slot being something you should check out. It is very good that you can see Saturn pretty well at lower power and makes it more likely you will see more with a bit more magnification.

Justin Prasad

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Re: First Telescope
« Reply #8 on: January 11, 2018, 11:57:59 AM »
I'm guessing that this is the kit in question...

http://www.telescope...c/14/p/9826.uts

The AstroView equatorial utilises 4 lb. and 7.5 lb. counterweights. Orion sells only the 7.5 lb. separately...

http://www.telescope...=counterweights

If your boss is the original purchaser, then they can probably get the 4 lb. from Orion's technical support department.

However, you might be able to use just the 7.5 lb.

Or, you can get this instead... https://www.astronom...unt_p20295.aspx

headsbigwardsubs

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Re: First Telescope
« Reply #9 on: January 11, 2018, 12:44:53 PM »
Quote
Sorry buddy, I guess I bought the last two.

Nice...

And you a neighbor and all!

..Joe

Adam Rice

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Re: First Telescope
« Reply #10 on: January 13, 2018, 02:00:26 AM »
Thanks for all the feed back guys it has really made a difference. @Sky Muse, the Astro-Tech Voyager 2 mount is more than I paid for my telescope. I dropped $50 on my scope not exactly sure how old it is but it is performing well.

reapriavoland

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Re: First Telescope
« Reply #11 on: January 13, 2018, 08:54:22 AM »
Sounds like a great deal, but what are you using for a counterweight(s)?

exvermabo

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Re: First Telescope
« Reply #12 on: January 13, 2018, 10:44:48 AM »
Not knowing which counterweights you need you should get online with Orion and chat with them to see what they have that will work. The mount you have I believe is a EQ3 made by Synta for Orion. I saw where there is a 11 lb counterweight on Orion's site for $39 but it says its for a Sirius or Atlas also Synta built mounts. Not knowing if that would fit, but may give you an idea of the cost. Orion Customer Service should be able to help you. The customer service chat is open, but the technical folks are not available until later given that they are on Pacific time

satimoja

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Re: First Telescope
« Reply #13 on: January 13, 2018, 03:15:50 PM »
As of the moment I am not using anything for a counterweight. I have only used it so far about 5 nights not tilting it very far for fear that it might tip. I have seen Jupiter, Saturn, Mars, and what I believe is Andromeda(or at least what I think to be the galaxy, it is a faint fuzzy). I have been using Sky Maps on my android phone to get the general location for where they are and search for them. If anybody knows of a site or has a list complied that I can use of objects that can be observed through my 5" mak-cass I would appreciate it. Has anybody convert their eq3 mount to a goto mount?

Adam Washington

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Re: First Telescope
« Reply #14 on: January 13, 2018, 04:07:39 PM »
Quote
As of the moment I am not using anything for a counterweight.

Has anybody convert their eq3 mount to a goto mount?


I imagine you'll need that 7.5 lb. eventually, although it may be possible to strap something or other that weighs about that, and onto the shaft.

It's possible to convert a manual EQ-3 to a go-to...

http://www.teleskop-...G-4-mounts.html