Data for My Telescopes (Comparison Table)

Telescope
Bresser
Meade
Sky-Watcher Skymax/Heritage/Explorer/StarTravel
GSO Omegon Celestron TS-Optics
Venus 76/700 AZ 10" ETX 90EC 102 127 76 100P 114P P130 150PDS ST120 GSD 680 PS 72/432 C8 TLAPO1027
Optical Design Newton Newton
(Parabolic)
Maksutov-Cassegrain Maksutov-Cassegrain Maksutov-Cassegrain Newton (Spherical) Newton (Parabolic) Newton
(Parabolic)
Newton (Parabolic) Newton (Parabolic) Refractor Newton (Parabolic) Refraktor Schmidt-Cassegrain Refraktor
Primary Mirror Diameter 76 mm (3") 254 mm 96 mm (90 mm) 102 mm (4") 127 mm (5") 76 mm (3") 100 mm (4") 114 mm (4.5") 130 mm (5") 150 mm (6") 120 mm (4.7") 200 mm (8") 72 mm 203 mm 102 mm
Focal Length, Focal Ratio 700 mm
f/9.2
1270 mm
f/5
1250 mm
f/13.8
1300 mm
f/12.7
1500 mm
f/11.8
300 mm
f/3.95
400 mm
f/4
500 mm
f/4.38
650 mm
f/5
750 mm
f/5
600 mm, f/5 1200 mm
f/6
432 mm
f/6
2032 mm
f/10
714/715 mm
f/7
Resolving Power (arc secs) 1.51" 0.45" 1.3" 1.15" 0.91" 1.51" 1.15" 1.01" 0.9" 0.77" 0.96" 0.58" 1.61" ** 0.57" 1.15"
Limiting Visual Stellar Magnitude 11.2 mag ca. 14.5 mag 11.7 mag 12.7 mag 13.2 mag 11.2 mag 11.8 mag 12.1 mag 13.3 mag 12.7 mag 13.1 mag 14.5 mag 11.1 mag ** 14 mag ca. 12 mag
Light Gathering Power 117.9 1316.7 165.3 212.3 329.2 117.9 204.1 265.2 344.9 459.2 290 816.3 105.8 ** 841 212.3
Maximum Practical Visual Power 152 x ca. 600 x 325 x 204 x 254 x ca. 100 x (152 x) 150 x (200 x) 170 x (228 x) apr. 195/220 x (260 x) apr. 225 x (300 x) 240 x apr. 300 x (400 x) 144 x appr. 400 x 204 x
Optical Tube Dimensions (diam. x length) n.a. 35 cm x 119 cm 10.4 cm x 27.9 cm 11.6 cm x 27 cm 14.4 x 33 cm n.a. 11.5 cm x 37 cm* n.a. Tube collapsed < 37 cm
(14.5") long
18.2 cm x 69 cm
18 cm x 68 cm*
116/142 mm x 660 mm 23 cm x 115 cm L: 39.5 cm with extended dew cap 23.8 x 43.2 cm 10.5/12.6 cm x 61.5 cm (transport size)
Net Weight Basis n.a. 12.2 kg n.a. --- --- n.a. 1.3 kg* 1.6 kg 3.1 kg* -- --- 11.2 kg n.a. n.a. n.a.
Net Weight Optical Tube n.a. 17.2 kg n.a. 1.9 kg 3.4 kg n.a. 1.2 kg* 3.7 kg 3.25 kg* 5.0/6.0 kg
5.5 kg*
4.0 kg 9.5 kg 2.06 kg 5.7 kg 5.6 kg
Net Weight Complete n.a. 3.5 kg 1.75 kg 2.5*/2.8 kg 5.3 kg < 6.5 kg or 14 lbs. apr. 21 kg n.a. n.a. n.a.

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

 

References