73990 GP2 Equatorial Mount
The original and still the best upgradable equatorial mount system
Much copied but never bettered, the Vixen GP2 mount is the benchmark for those wanting a solid, dependable equatorial observation or imaging platform.
The GP2 mount system features accurate tracking and is an excellent platform for serious astronomical observation.
A wide selection of optional accessories are available allowing you to customise the GP2 mount’s features to fit your observing needs.
Accepts payloads up to 7kg.
Product features
Motor drive upgrade
Either the D3M motor controller set or the Star Book S system for GO-TO slewing and celestial tracking can be added to the mount.
Simple polar alignment
The 2˚ incremental altitude scale and optional polar axis scope set assist with accurate polar alignment.
Dovetail plate attachment
The dovetail plate attachment system allows you to attach an optical tube easily and quickly.
| Specifications | GP2 Mount |
| R.A. slow motion axis | 144-tooth wheel gears whole circle movement |
| DEC slow motion axis | 144-tooth wheel gears whole circle movement |
| R.A. graduations | Optional (included in Polar axis scope set) |
| DEC graduations | Optional (included in Polar axis scope set) |
| Polar axis scope | Optional |
| Altitude adjustment | 0° to 62°, (2° increments) |
| Azimuth adjustment | Double-screw fine adjustment |
| Controller | Optional, with Star Book S set or D2M motor drive set |
| Maximum loading weight | 7kg (15.4lb) approx, excluding counterweight |
| Counterweight | 3.7kg (8.15lb) x1 |
| Weight | 4.0kg (8.8lb), without counterweight |
Optional Accessories
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Motor and controller options include D3M manual controller set and Star Book S GO-TO controller set. |
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73912 Polar Axis Scope Set 6x20mm finder scope with scale for both northern and southern hemispheres. Supplied with penlight external illuminator and RA & DEC graduation rings. Note: for GP mount only. |
| 72576 Accessory Plate DX Weight: 1275g (44.97oz) Size: 330x120x12mm For SX, SXD, GP2 and GPD2. Dovetail mounting block is required to use with VC and VMC optical tubes. |
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75167 Half Pillar Weight 1.5kg (3.3lb) |
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73881 GP Aluminium Case Weight: 4.4kg (9.7lb) Size: 460x485x148mm Note: Special order only |
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75141 Aluminium Tripod GP-HAL130 Lightweight rigid box section legs adjustable from 81cm to 130cm in height. Weight: 5.5kg (12.1lb) Note: Tripod not included with GP2 or GPD2 mount. |
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76961 Carrying Bag for Tripod HAL130 Size: 850x175mm For GP-HAL130 and SX-HAL130 tripods. Holds a Half Pillar. Note: Special order only |
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75460 Tripod Accessory Tray This tray provides a convenient storage space for eyepieces and other accessories. It also improves the overall stability of the tripod. The tray can be used on the HAL130 for use with GP and SX mounts as well as on the Porta II tripod. |






