Image of the day

Captured by
Michael Scherman

Dual Clusters near Antares

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Rod Mollise

September 22, 2009 11:30 AM Forum: Reflectors

Refractor guy looking to get first CAT

Posted By Rod Mollise

Brian Coltrane said:

I've had newts & refractors. I still love my apo, but I'm looking for a compact scope with about 8" aperture for a dual mount setup (all visual, no AP). One thing a didn't like about my newts was the coma problem. I'm hoping to find a good deal on Astromart. Any advice as to what I should be going for??

If you quest is mainly for portability and for visual use, you could do far worse than the Celestron NS8 SE.

September 24, 2009 11:35 AM Forum: Beginning Astronomy?

Perfect Tracking

Posted By Rod Mollise

Michael Simonson said:

Howdy all,

I've been using my Meade ETX 105 here for the past summer, and for some reason, I can barely get the GOTO function to actually, well, go to something. I've learned time must be an exact, as well as global position, but for some reason, my go-tos of Jupiter and Saturn are always on the very edge of my FOV.

As I will try to go to DSO's in the near future, I would like to be able to solve this problem so I can get some centered and "good=looking" DSO's.

Thanks,

Michael Simonson


(attached is my first picture with my DSI Pro, it was cloudy tonight)

Have you tried go-tos to anything else? If the planets are the only problem, yes, location and time are fairly important (closest city and your watch are good enough).

Usually, ETX newbies have three problems:

Not properly setting the scope in Home Position.

Not aligning on the correct alignment stars (make sure you KNOW which star is Alderamin, etc.).

Not performing drive training, or not doing it right.


September 24, 2009 11:39 AM Forum: Equipment Talk

Anybody with knowledge of B&l 8000?

Posted By Rod Mollise

Matthew Egan said:

Howdy- Just looking for some information. I have owned a B&L 8" sct for a year or so and am selling it. I know, I know, worst scope ever. Not really, this one has performed O.K. for me but I have no need for it's complexities with a 8" GSO dob already in the garage. So my question is this- If you want to attach a 2" sct diagonal to it, do you need a 2" visual back or converter or something? I got one cheap online recently and wanted to throw it on to the buyer. However, it is too wide (by a couple of mm at most) to screw on the threads on the back of the OTA. Is this because I am missing a piece or did Bauch and Lomb / Criterion use a different diameter than current standard to attach visual backs and accessories? If so is there a fix? Thank for fielding my nonsense.

The Rear Port threads on the Dynamax/B&L were different from Meade and Celestron. To my knowledge, Criterion/B&L never produced a 2-inch visual back or 2-inch diagonal for the scopes. A machine shop could likely whip up a 2-inch visual back up in no time.

The B&L 8001 Pro is a good scope, if maybe not quite as good as the contemporary Ms and Cs. The 8001 is the only one of these CATs that ever impressed me much.

September 28, 2009 11:32 AM Forum: Mounts

CG5...Autoguiding?

Posted By Rod Mollise

Tony Aguire said:

Hello, All

I have a CG5-GT on the way for my C8/WO SD66 combo. I am looking at methods to autoguide this mount. I have a Meade DSI color (first version) that I am not using, but I am wondering if I would have better luck with the Orion Starshoot autoguider. Software, ease of use etc matter. I will be using an older Dell laptop running XP to do this. Up till now I have been manually guiding, so this is going to be a learning curve...


Thanks and Clear Skies.

I never had a problem autoguiding the CG5 with the DSI. I believe it's actually more sensitive than the Orion. The Orion does have an ST4 output if'n you wanna guide that way, but Shoestring's GP-USB works well, too.

September 30, 2009 11:36 AM Forum: Beginning Astronomy?

Filters

Posted By Rod Mollise

Brian Crittendon said:

I am interested in viewing nebula & other deep space objects. What do you recomend for my 1st filter. uhc type lpr filter or o-III type filter. I have a great viewing spot 15 miles from the nearest small town & 25 from the nearest city.

Thanks

Brian

Your best bet is the UHC, since it works on the largest selection of objects. By "objects" I mean nebulae. Remember, one of these filters won't do PEA-TURKEY for any object that radiates in starlight: stars, galaxies, open clusters, globular clusters, reflection nebulae. wink

October 5, 2009 11:47 AM Forum: CCD Imaging and Processing/Deep Sky

DSI II imaging questions / issues

Posted By Rod Mollise

Gordon Irwin said:

I have been trying to get my first reasonable image with my Meade DSI II Pro on a 10" LX200 Classic using AutoStar Suite softwre, but I am not sure what I am doing wrong after 3 attempts I still don't have much to show. Any advice would be helpful.
Below is my attempt at M31 40 combined exposures

Envisage settings:
15 sec exposures
Dark frame subtract
Deep Sky Image process combined 40% quality
File save options - JPEG Normal operation

Is this typical of 40 combined 15 second exposures? I intended to keep the exposure times low as I am still sorting out minor autoguiding issues.

Thank you,

Gordon

1. Longer exposures...30 seconds minimum. More is much better. Most drives will deliver enough good frames at 30 seconds to allow unguided exposures of that length.

2. If you are imaging at f/10, GET YOUR FOCAL LENGTH DOWN. I would not dream of using a DSI on this scope without Meade's f/3.3 reducer!

October 5, 2009 07:08 PM Forum: Celestron

Sky Scout question

Posted By Rod Mollise

David Colton said:

Is there any way to mount a Sky Scout to a telescope, so that it can be SHIELDED from the metal OTA and used as an object finder? I have a TV102 (and that's a lot of metal) on a Gibraltor mount. With the price reduction, it would be an economical accessory if it would work.

This can work. As long as it's non-ferrous metal, it won't affect the SS...and a couple of outfits are making shields to use when mounting the thing to a scope, too. The fly in the ointment? Don't expect more than "couple of degrees" accuracy out of the SkyScout; if that's good enough for you, have at it.

October 5, 2009 07:13 PM Forum: Beginning Astronomy?

Best Grab & Go Scopes?

Posted By Rod Mollise

John Agnew said:

I've been thinking about getting a scope(& mount) that would be more easily dealt with on a camping trip than my C9.25 CPC. My initial thoughts were leaning towards an ETX 127 or something similar. I know there are some nice refractors of about the same size that might work too, but I'd like to keep the price below $700. What small scopes will give me the best views of DSO's? I just spent a few weeks in an area with amazing skies, armed only with a small pair of birding binocs. Never again.
We can continue the refractor vs reflector fight here, I suppose.

I've got an ETX125, but I would NOT call it a grab 'n go. It's not much more grab 'n goish that a C8 as a matter of fact.

Small refractors? Can work, but the stickin' point is usually the mount. Anything you'd care to use usually makes 'em less portable than you want.

My solution? A StarBlast, a stand I made for it in an afternoon, and a pair of inexpensive 15x70 binoculars. They stay in the back room by the back door and are what keep me observing all through the hot, humid, buggie, sucker-hole-laden summer. Deep Sky power? Seeing the whole Cygnus Loop through the 'Blast one summer night damn sure made a believer out of me. Plus, did I mention? It's C-H-E-A-P!

You can see my StarBlast setup here:

http://www.astromart.com/articles/article.asp?article_id=93

If it wasn't for the 'Blast and the binocs, I would have missed many of the little minor comets that have drifted through the summer skies for the last few summers, and I wouldn't have looked at Comet Holmes half so often.



October 6, 2009 11:07 PM Forum: Equipment Talk

Orion Star Shoot Autoguider

Posted By Rod Mollise

David Berman said:

Just a 'heads up' if you are running Vista 64bit, Orion does not have a driver. They have the driver for the Star Shoot cameras, but it is not compatible with the autoguider. They seem a little vague on the issue, so I would not count on seeing it soon although their web site says mid October. This is really too bad. The autoguider works really well, but almost all new and recent PC's only come with Vista 64 and Window 7 is coming out right behind it. These guys are really behind the curve.

Not the case. Most new PCs come with 32 bit Vista. At this juncture, there's not too much in the way of astro-ware that is trivial to install and runs right on 64. I'd no more use a 64 bit Vista machine for astro-ware than I'd put my cat, Growltiger, in charge of the cream and the can opener. ;-)

October 7, 2009 12:03 PM Forum: Digital SLR AstroPhotography

Need Help - Beginner

Posted By Rod Mollise

Leslie Artola said:

Hello,

Just joined and a Beginner so bare with me. I've been crazy about astronomy and astrophotography for years, started to get into it a few years back with a Meade ETX-125 and a old Canon Rebel 2000 (film). Had our first child and had to sell the scope.

Here I am a few years later and now with 2 kids and its finally time for me to get back into this. Now...I've been reading for a few nights now and it seems the more I read, the more confused about which type/make/size of scope I should buy. I've come to the conclusion that an equatorial mount is a must but just cant seem to make up my mind on what scope to get so I figure I need help!

I want a scope which will allow me to take spectacular photos of the moon, planets and long exposure. I would also like it if the scope doubles up as a decent observation scope but rather it be more geared towards photo taking.

Reality: Budget is not high enough to buy anything crazy like a Vixen Refracting scope but I have roughtly a $1,500 budget to play with.

I will be using a Nikon D90 to snap the photos and also have a mac book pro if that makes a difference lol. Any help and I mean any will be greatly appreciated. If you need me to supply any other info just let me know and feel free to email me [email protected]

Thank you so much & I look forward to being a part of this community.

Albert.

It's best, if your main goal is imaging, to focus on the mount, first. Get something you can afford, but the BEST you can afford. A Celestron CG5 or (better) a CGEM or an Orion Atlas. That, and perhapes a little 66ED refractor (William Optics, Astronomy Technologies) and or a piggyback setup where you image through the camera's lens will get you started on the deep sky.