My William Optics Fluorostar 91 Rig (Steve Sells)

My William Optics Fluorostar 91 Rig

Imaging Telescope:  William Optics Fluorostar 91
Field Flattener:  William Optics Flat 68III
Imaging Camera:  ZWO ASI2600MC
Guide Telescope:  QHYCCD miniGuideScope
Guide Camera:  QHY5L-II-M
Mount:  iOptron CEM40 (2021 model)
Filters:  Optolong L-eXtreme, Optolong L-Pro
Accessories:  ZWO filter drawer · ZWO EAF focuser · Pegasus Astro FlatMaster 150 ·
Talcope Red Dot Finder · Pinty Laser Sight ·
Latte Panda Delta · P-Link AC750 Portable Travel Router

When I was thinking about getting this William Optics Fluorostar 91, I searched the Web for pictures of how other people had set theirs up so that I would know what I was getting into. Now I'm posting my own pictures for others to see.

All the cables that connect the telescope to off-rig devices run through the mount. The blue USB3 cable coming out of the bottom of the mount's declination axis and the black USB cable to its right go to a single-board PC which controls everything. One cable is missing in the picture above – the cable that provides 12-volt power to the mount and the camera's cooler connects to the mount's declination axis near the black USB cable. The computer, a LattePanda Delta running Windows 10 Pro, sits on the tripod's accessory tray. I use a Samsung tablet connected by WiFi as the computer's monitor, mouse, and keyboard.

With the equipment shown in the pictures, the load on the mount is just under 20 pounds.

The first picture I made using this new telescope is posted here on AstroBin at  https://www.astrobin.com/pf9vpc.

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Description: The Losmandy-style dovetail sits high in the CEM40's saddle so that cables fed through the declination axis can come out the back or the front. (A Vixen-style dovetail would occupy that space.) Note the blue USB3 cable for the camera coming out from under the dovetail.

The back of the dovetail saddle includes a USB2 connection and two 12-volt power connections. I Velcro'ed a USB hub to the dovetail to make an easy place to connect the focus motor and the guide camera.

Uploaded: ...

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Description: Risers raise the telescope 3/8" off the dovetail, providing clearance between the focus motor and the top of the dovetail saddle and also between the right focus knob and the top of the dovetail. I made the risers from 3/8" x 1" aluminum plate. It would be nice if you could get risers from William Optics.

Uploaded: ...

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Description: A safety stop prevents the dovetail from sliding out the back of the dovetail cradle. From Ace Hardware. I included enough washers to equal the depth of the counterbore so that the head of the bolt sticks out from the bottom of the dovetail.

Uploaded: ...

Imaged with APT

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Deep sky
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Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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Unknown

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