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I have been really inactive here, so apologies.
Here are a few images of the Solar Eclipse, happened on 21 June 2020. It was annular, but partial from Mumbai region (around 60% covered). Maximum phase of the eclipse was at around 11:30 a.m. IST.
This is actually onset of our 4-5 months of monsoon season, so getting decent skies was a tough part. Luckily got decent cleared patches here and there with occasional rains.
I had to use whatever I had to make a comfortable view of the eclipse, thanks to the lockdown.
I simply took a box, made a whole of the size of the eyepiece on one end, cut the opposite side and attached a paper. I had to do little bit here and there attachments for perfect angle. But was really happy with the results.
One of the best experience was when I was seeing the Sun while it was drizzling at the same time.
I am selling my Meade LX90 8" EMC with many accessories due to equipment upgrade, so this lovely scope needs a new home. All in excellent condition; no rust, battery boxes spotless, all motors function perfectly, holds collimation extremely well (only had to collimate once in the past 2 years), when well polar aligned I have achieved 3 minute unguided DSLR exposures.
Meade LX90 8" EMC (in original Meade foam-filled shipping box)
Meade 8x50 finderscope
Meade standard field tripod
Meade equatorial wedge (replacement bolts to hold telescope and adjust azimuth)
Meade AUDIOSTAR handset (under 2 years old) in original box (Provides much more functionality than the original Autostar)
Meade UHTC flip-mirror system for photography
Meade 1.25" eyepieces: 40mm 32mm 26mm 15mm 12.4mm 6.4mm
Meade 1.25" telenegative amplifier air spaced triplet barlow
Meade series 4000 1.25" filters x5
Meade erecting prism and a 90° eyepiece holder
Celestron 2" Mirror diagonal Starbright XLT with 1.25" adapter in original aluminium case
Meade #505 cable connector set to connect PC to handset to control mount and update firmware
Meade ST-4 module for connecting a guide camera to the mount
Meade handset holder
Meade front counterweight
Jessops flight case to hold eyepieces, etc.
Please ask for more photos/information. Price includes shipping to Western Europe. Paypal preferred.
Hi all I’m just looking for advice on upgrading telescop. At the minute I’ve got a Meade ETX 125 and had some good views with it so far. Mainly Moon Planets and brighter clusters. However I wanted to see more Galaxies and nebulas which is a much to ask for a F15 scope.
im looking at second hand Celestron/Meade 9.25” f10 s With maybe a focal reducer and Sky-Watcher 10”-12” F4.9 dobsonians which is the better choice?
There is something that makes me think practicality.
We can all agree that a long focal length scope is better suited for planetary use than its short length brother which would be best suited for dso viewing or guiding/photo.
We can take those two (refractors) as an example: 90/900 and his brother, a 90/500 (and we will be using Plossl EPs)
Exit pupil is an important factor in viewing comfort.
Exit pupils are dependent on the scope's focal length, the EP's fl and the main lens diameter.
For example, to acheive 100x in the 90/500 we will need a 5mm eyepiece and to acheive the same mag in the 90/900 we will need a 9mm eyepiece.
The exit pupils of both scopes in those configurations will be 90/100=0.9mm
The theoretical magnification limit for both scopes lies at about 180x.
It is true that to reach this 180x you will need a 5mm EP in the 90/900 and a "2.8"mm EP in the 90/500 and those will probably make for an eyelash brushing eye relief... But looking at exit pupils up to 100x, those scopes do not seem to complement one another, but rather replace each other.
So, ignoring abberations, and not taking into account eye relief so much, wouldn't the faster scope be almost as practical and easy on the eyes for high-ish magnifications as the slower, heavier, harder to mount in the wind scope?
just my evening neurons buzzing...