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Posts Made By: Vittal Badithe

January 24, 2004 04:40 AM Forum: Telescope Making

Focuser length on a dobsonian

Posted By Vittal Badithe
How does one measure the amount of focus available
in a focuser?

Is it only the length of the focuser drawn out from
where the knob exists or is it the length of the entire
focuser where it is attached to the tube - to the
full drawn out end?

Vittal

January 31, 2004 06:03 PM Forum: Telescope Making

Building my first reflector

Posted By Vittal Badithe
In trying to build myself a 10" dobsonian
i purchased a kit that came with a 2.75"
secondary. The primary is a F4.

Is the secondary too big?

Vittal

February 24, 2004 05:07 AM Forum: CCD Imaging and Processing/Solar System

DoubleCluster

Posted By Vittal Badithe
A 30 second exposure @ ISO 320 F10
LOMO Astele 133.5 and Fuji FinePix S1 Pro

March 24, 2004 03:24 AM Forum: CCD Imaging and Processing/Solar System

Circular rings

Posted By Vittal Badithe
Hi

Does any one know why these rings appear? My camera
is a digital SLR Fuji S1 FinePix Pro. These rings appear
only when i try to picture solar flares with a Lumicon 1.5A
prominence filter. These don't appear when sunspots are
captured.


April 21, 2004 03:46 AM Forum: Celestron

Polar scope on CI-700

Posted By Vittal Badithe
I obtained a CI-700 mount this morning and having
trouble understanding how to align the polar scope.
Can the mount be aligned without a telescope?
What is the sequence generally?

I am used to a CG-4 where the RA axis rotates along with
scope.


April 24, 2004 04:51 AM Forum: Equipment Talk

4" refractor tube rings

Posted By Vittal Badithe
These rings came with the 4"celestron refractor. They have
two screws at the top - a threaded rod with a knob and the other is just an emplty threaded hole.

Does any one know what these are for ? cannot attach a camera
as the design forces the camera to turn instead of the knob
and can position at awkward angles serving no purpose.

April 26, 2004 02:15 AM Forum: Equipment Talk

heat resistant covers for mounts

Posted By Vittal Badithe
is it a good idea to leave a mount outside
covered? am planning on a permanent pier
and was hoping to find some cover that can
keep the mount safe?

is it worth the effort? the mount is a ci-700. any advise?

September 3, 2004 03:31 PM Forum: Equipment Talk

Directions and Drift Alignment

Posted By Vittal Badithe
I adjusted the eyepiece reticle xhairs to match the movement of the
star with the buttons on my handcontroller. Declination presses moved
exactly along the N/S line and RA presses moved the star along E/W
line.

While performing a drift alignment, i observed the star's movement in a
north-westerly direction. Hoping that it would come back due to a PEC, i
waited but it drifted further north-west. Is this PEC or a mount that
is still requiring Azimuth adjustments?

The equipment was a Meade ETX125 while tube, 12.5mm Xhair illuminated
eyepiece on a Televue 5x powermate. All of this on a Celestron CI-700
mount

Can anyone comment?

-Vittal

February 24, 2004 05:06 AM Forum: CCD Imaging and Processing/Solar System

Moom and Venus - Weird Moom Artifact

Posted By Vittal Badithe
I got this through my Fuji FinePix S1 Pro and a 28-80mm
Quantary lens. 2 seconds @ F5.6 ISO 320

February 25, 2004 02:15 AM Forum: CCD Imaging and Processing/Solar System

DoubleCluster

Posted By Vittal Badithe
Prime focus @ F10. LOMO Astele's Maksutov
does not seem to work with 6.3 reducers.

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