#5 — Best GoTo Planetary Under $500
Celestron NexStar 4SE
102mm f/13 Maksutov-Cassegrain · Single-arm GoTo alt-az mount · NexStar+ 40,000-object controller
The NexStar 4SE is the smallest scope in Celestron’s legendary NexStar SE line — the same single-arm GoTo architecture as the 6SE and 8SE, at a fraction of the price. The 102mm f/13 Maksutov-Cassegrain optical design delivers extremely high contrast planetary views — the long focal length (1,325mm) and closed tube naturally suppress stray light and produce crisp, high-magnification images. At 200×, Saturn’s Cassini Division is a distinct dark gap, multiple moons are identifiable, and the ring shadow on the globe is visible on steady nights.
The NexStar+ hand controller with 40,000+ objects and SkyAlign (align on any three bright objects, no star chart knowledge needed) makes finding targets effortless. The entire scope packs into a single arm carry bag. For observers whose primary interest is Saturn, Jupiter, and the Moon rather than faint deep-sky objects, the 4SE is the best GoTo instrument under $500.
Best for: Planetary observers, Moon enthusiasts, compact GoTo, solo urban observing.
Pros
- ✓ NexStar+ GoTo — full 40,000-object database
- ✓ Maksutov design — exceptional planetary contrast
- ✓ Extremely compact and portable
- ✓ NexStar SE single-arm mount — proven reliability
- ✓ Expandable (same accessories as 6SE/8SE)
Cons
- ✗ 102mm aperture limits deep-sky performance
- ✗ f/13 means very slow — narrow field of view
- ✗ Requires GoTo alignment before each session
- ✗ Batteries drain quickly — DC power recommended