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Sky_Watcher BK P250 OTAW Dual Speed + Sky-Watcher EQ6-R

Category:Equipment
Published:
2928
Sky_Watcher BK P250 OTAW Dual Speed + Sky-Watcher EQ6-R
Resolution:
3024x3024 px
File size:
2361 KB

Photo description / processing

A new season with new equipment.

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Peter Tiagunov
Overload!
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OlegIn_GeologReply to Peter Tiagunov
No. I checked. The tube with all the accessories is 17-18kg. The mount handles up to 20kg without any issues. It gives 5-minute guided exposures with no defects at all. 10 minutes would probably work too, but I haven't tried it.
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Peter TiagunovReply to OlegIn_Geolog
You are not calculating correctly. EQ6R-Pro payload capacity is 44 lbs = 19.96 kg. 19.96 / 2 = 9.98 kg. Two counterweights are included, each 11 lbs = 2x11=22, half of 44, or 9.98 kg. I consulted with them before buying the telescope.
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OlegIn_GeologReply to Peter Tiagunov
No, again. There is also the extension arm! The EQ6-R has an extension bar. Two counterweights at the end of the bar + the extension bar itself can balance 18-19 kg... Plus, I also have a small 2.5 kg weight disc. With it, even with a full setup, I move the counterweights far from the edge, so there's even some reserve left... The telescope is fully balanced on both axes; otherwise, imaging simply wouldn't be possible.
Here's a timelapse of the telescope setup: https://www.youtube.com/watch?v=CC5N0AtI00k
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OlegIn_GeologReply to Peter Tiagunov
I've been observing and photographing for years now... I've had many telescopes and mounts. I know how everything should be.
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Peter TiagunovReply to OlegIn_Geolog
It's all about the counterweight arm. They explained it very simply: on one arm, you have a maximum-length bar with 10 kg at the maximum distance; on the other arm, you can put as much as will fit.
It might fit 20 kg. You have three weights, so two weren't enough. I really wanted a telescope with a 300 mm aperture, but it was too heavy. You could overload it, of course, but then the lifespan and warranty would suffer, though it would probably still work.
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Peter TiagunovReply to OlegIn_Geolog
Your last comment reminds me of the story about the Japanese super-saw and the Soviet lumberjacks!
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Peter TiagunovReply to OlegIn_Geolog
Please upload a screenshot from PHD2, 200-400 samples.
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OlegIn_GeologReply to Peter Tiagunov
https://yadi.sk/i/-JKgF5EgEUQJAA
This is a very good polar alignment. Usually around 0.7.
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OlegIn_GeologReply to Peter Tiagunov
Two were enough for me. The third one is for convenience. Plus, it has a dovetail for a small telescope or camera.
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Peter TiagunovReply to OlegIn_Geolog
What are you guiding with? It's not clear/visible in the photo.
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OlegIn_GeologReply to OlegIn_Geolog
Sky-Watcher 804, 80mm fast achromat. Datyson T7C camera.
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Peter TiagunovReply to OlegIn_Geolog
I had a similar setup, only with a Meade LX200 SC telescope + Meade 80 Infinity 400 mm + 2x Barlow with a flip mirror and a 20 mm 70-degree FOV eyepiece with a reticle.
I usually couldn't guide better than 0.7" arcseconds; it was typically around 1".
With the new RC-10 telescope, I had to remove everything to lighten the load, keeping only a laser pointer and OAG.
As soon as I switched to OAG, guiding accuracy immediately became twice as good.
Here's my current setup: https://deepskyhosting.com/wiy7Z3i
Awesome video!
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OlegIn_GeologReply to Peter Tiagunov
Good camera. I'm not getting a coma corrector yet. I have a DSLR, and it's tricky to get the back focus right with a coma corrector... You might guess wrong and get the wrong coma corrector. And I don't have the money for it right now. )))
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Peter TiagunovReply to OlegIn_Geolog
Oleg, please give me a like on M33 if possible.
Don't be stingy.
It's still better than yours. And I gave you 2 likes!
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Peter Tiagunov
Overload!
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Peter TiagunovReply to Peter Tiagunov
There is an "intermediate" solution, but I haven't implemented it yet. I bought a titanium tube with a 2 mm wall thickness to replace the standard counterweight bar. The lever arm will be 10 cm longer, but the total weight of the bar with two counterweights will not change.
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More photos by OlegIn_Geolog