Skywatcher Dobson Heritage Comparison

Look | Basic Data | Links

On this page, I put some comparative information about my Skywatcher Heritage Dobson telescopes together (the later acquired 114P and returned is only partially included in this comparison).

Note that the Skywatcher Heritage 100P telescope is very similar to the Orion SkyScanner - 100mm TableTop Reflector telescope (or even identical to it). Also note that the Skywatcher Heritage 76 telescope is very similar to the Celestron Firstscope 76 (or even identical to it).

Note: I gave the Heritage 76 telescope away in March 2016. I therefore can no longer report any experiences with this scope here. Since I acquired the Heritage 114P after I had given the Heritage 76 away (namely, in May 2016), I cannot present all four telescopes together on one photo. In addition, I returned the 114P soon after its purchase (not because of the 114P).

 

Look

Packages in Comparison (76, 100P, 130P)

Outer packages in comparison

Ditto

Package Dimensions:

Outer Package:
76: 42.5 cm x 25 cm x 26 cm
100P: 52 cm x 29.5 cm x 29.5 cm
P130: 53.5 x 41 x 41 cm

Package:
76: 39 cm x 23.5 cm x 24 cm
100P: 48.5 cm x 27 cm x 28 cm
P130: 50 cm x 37.5 cm x 39 (40) cm

Packages in comparison

Ditto

Ditto

114P Package

Outer package

Ditto

Package Dimensions:
Outer Package: 58.5 cm x 35 cm x 34 cm
Package: 57 cm x 32.5 cm x 33 cm

Outer package and package of the Heritage 114P

Package of the Heritage 114P

Ditto

Ditto

Look of the Telescopes in Comparison (76, 100P, P130)

Look of the Telescopes in Comparison (100P, 114P, P130)

Changing the Base (100P, 114P, P130)

Since all three telescopes tube have the same type of mount for the base, I exchanged tubes and bases where it seemed to make sense:

114P on base for 100P, 100P on Virtuoso base

100P on base for P130, P130 on Virtuoso base, 114P on 100P base

P130 on Virtuoso base, 114P on P130 base

114P tube on base for P130 (left) and base for 100P (right); the latter is not very stable and can easily tilt over...

P130 tube on Virtuoso base

Ditto

Ditto

The base for the Heritage 100P is suitable only for its own small tube. The Heritage 114P tube might fit in principle, but the whole thing tilts easily over, because the diameter of the 100P base is too small (see the photo in the middle row at the center). The tube of the Heritage 114P can, however, be mounted on the base of the P130 without problems, even though this base might perhaps look a little bit too big for the tube (see the photo in the middle row on the left).

The opportunity to mount the Heritage P130 tube on the Virtuoso base looked interesting to me, because, this way, I would have a larger telescope with tracking at my disposal. This is possible in principle, but the P130 tube seems a bit too heavy for the Virtuoso mount, which can carry a maximum of 4 kg (or even only 2 kg as I also read). The "naked" P130 tube weighs already about 3.25 kg (P130-base = 3.1 kg P130 tube = 3.25 kg, according to my scales), and you have to add the weight of the eyepiece and, perhaps, a camera to this. This possibility is indeed no longer an option for me, because I have returned the Virtuoso mount. Instead, I can now use the P130-tube on the Star Discovery mount that can even carry 5 kg.

 

Basic Data for my Sky-Watcher Dobson Heritage Telescopes (in Comparison)

Telescope
Meade
Sky-Watcher Skymax/Heritage
GSO
10" ETX 90EC 102 76 100P 114P P130 GSD 680
Optical Design Newton (Parabolic) Maksutov-Cassegrain Maksutov-Cassegrain Newton (Spherical) Newton (Parabolic) Newton
(Parabolic)
Newton (Parabolic) Newton (Parabolic)
Primary Mirror Diameter 254 mm 96 mm (90 mm) 102 mm 76 mm (3") 100 mm (4") 114 mm (4.5") 130 mm (5") 200 mm (8")
Focal Length, Focal Ratio 1270 mm
f/5
1250 mm
f/13.8
1300 mm
f/12.7
300 mm
f/3.95
400 mm
f/4
500 mm
f/4.38
650 mm
f/5
1200 mm
f/6
Resolving Power (arc secs) 0.45" 1.3" 1.15" 1.51" 1.15" 1.01" 0.9" 0.58"
Limiting Visual Stellar Magnitude ca. 14.5 mag 11.7 mag 12.7 mag 11.2 mag 11.8 mag 12.1 mag 13.3 mag 14.5 mag
Maximum Practical Visual Power ca. 600 x 325 x 204 x ca. 100 x (152 x) 150 x (200 x) 170 x (228 x) ca. 220 x (260 x) ca. 300 x (400 x)
Optical Tube Dimensions (dia. x length) 35 cm x 119 cm 10.4 cm x 27.9 cm 10.4 cm x 27 cm n.a. 11.5 cm x 37 cm* n.a. Tube collapsed < 37 cm
(14.5") long
23 cm x 115 cm
Net Weight Basis 12.2 kg 3.5 kg (complete) --- 1.75 kg (complete) 1.3 kg* 1.6 kg 3.1 kg* 11.2 kg
Net Weight Optical Tube 17.2 kg 1.9 kg 1.2 kg*
(2.5*/2.8 kg complete)
3.7 kg
(5.3 kg complete)
3.25 kg*
(< 6.5 kg or 14 lbs. complete)
9.5 kg
(appr. 21 kg complete)
Outer Package Dimensions (about)   42.5 cm x 25 cm x 26 cm 52 cm x 29.5 cm x 29.5 cm 58.5 cm x 35 cm x 34 cm 53.5 x 41 x 41 cm Tubus box: 140.5 cm x 41 cm x 34cm

Rockerbox box: 69.5 cm x 59 cm x 13.5 cm

Package Dimensions (about)   39 cm x 23.5 cm x 24 cm 48.5 cm x 27 cm x 28 cm 57 cm x 32.5 cm x 33 cm 50 cm x 37.5 cm x 39 (40) cm
Package Weight (Gross/Net)   2.5 kg / 1.7 kg 4 kg / 3 kg 9 kg / 7 kg 8 kg / 6.5 kg

16.6 kg + 13.2 kg (gross measured)
(approx. 40 kg gross)

Dark Blue: Telescopes that I still own; italic and dark red: telescopes that I owned; black: for comparison; *) own measurement

 

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12.10.2016