Celestron NexStar 8i User Manual
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Perfect collimation will yield a star image very symmetrical just inside and outside of focus. In addition, perfect
collimation delivers the optimal optical performance specifications that your telescope is built to achieve.
If seeing (i.e., air steadiness) is turbulent, collimation is difficult to judge. Wait until a better night if it is turbulent or
aim to a steadier part of the sky. A steadier part of the sky is judged by steady versus twinkling stars.
See also other documents in the category Celestron Optical devices:
- PowerSeeker 60 60mm f/12 AZ Refractor Telescope (9 pages)
- NEXSTAR 4 (50 pages)
- CGEM II 700 180mm f/15 Maksutov-Cassegrain Telescope (71 pages)
- CGEM II 700 180mm f/15 Maksutov-Cassegrain Telescope (72 pages)
- CGEM II 700 180mm f/15 Maksutov-Cassegrain Telescope (71 pages)
- Feathertouch SCT Microfocuser (4 pages)
- 91510 (17 pages)
- NexStar HC (53 pages)
- PowerSeeker 60 60mm f/12 AZ Refractor Telescope (8 pages)
- PowerSeeker 60 60mm f/12 AZ Refractor Telescope (10 pages)
- Ultima 80 (19 pages)
- C9.25-S (69 pages)
- Advanced Series C6-RGT (69 pages)
- CPC Series (68 pages)
- XLT series (60 pages)
- CGE1400 (75 pages)
- 11055 (80 pages)
- 8x42 Outland X Binoculars (Black) (5 pages)
- NexStar GT (13 pages)
- OMNI XLT 102 (62 pages)
- SkyScout Scope 90 (16 pages)
- 21016 (17 pages)
- NexStar 5SE 125mm f/10 Schmidt-Cassegrain GoTo Telescope (52 pages)
- CGEM II 700 180mm f/15 Maksutov-Cassegrain Telescope (67 pages)
- FIRSTSCOPE 21071 (10 pages)
- 127 (15 pages)
- StarSeeker (34 pages)
- 52291 (17 pages)
- Refractor 80ED (16 pages)
- NexStar 80GTL (44 pages)
- CR-150 HD (59 pages)
- NexStar GPS 93507 (74 pages)
- 31058 (60 pages)
- Item #21047 (4 pages)
- FIRSTSCOPE 70EQ (20 pages)
- 8x42 Outland X Binoculars (Black) (8 pages)
- 10x56 Nature DX Binoculars (52 pages)
- 8x42 TrailSeeker ED Binoculars (52 pages)
- 10x56 Nature DX Binoculars (52 pages)
- 8x42 Outland X Binoculars (Black) (12 pages)
- 8x42 Outland X Binoculars (Black) (12 pages)
- 7x50 SkyMaster Pro ED Binoculars (72 pages)
- Handheld Digital Microscope Pro (Gray) (65 pages)
- 2MP Digital Microscope Imager (85 pages)