Expanded Specifications Celestron 21049 Powerseeker 127EQ Reflector Telescope

Optical Design: Newtonian Reflector
Aperture: 127mm (5")
Focal Length: 1000mm (39")
Focal Ratio: f/7.87
Focal Length of Eyepiece 1: 20mm (0.79")
Magnification of Eyepiece 1: 50x
Focal Length of Eyepiece 2: 4mm (0.16")
Magnification of Eyepiece 2: 250x
Barlow Lens: 3x
Finderscope: 5x24
Highest Useful Magnification: 300x
Lowest Useful Magnification: 18x
Limiting Stellar Magnitude: 13
Resolution (Rayleigh): 1.1 arc seconds
Resolution (Dawes): 0.91 arc seconds
Light Gathering Power (Compared to human eye): 329x
Secondary Mirror Obstruction: 41mm (1.6")
Secondary Mirror Obstruction by Diameter: 32%
Secondary Mirror Obstruction by Area: 10%
Optical Coatings: Glass mirrors coated with aluminum and SiO₂
Optical Tube Length: 436mm (17.2")
Optical Tube Diameter: 139.5mm (5.49")
Optical Tube Weight: 7.1 lbs (3.23 kg)
Dovetail: CG-3 Dovetail bar
Mount Type: Manual German Equatorial
Height adjustment range (includes mount and tripod): 812.8mm - 1295.4mm (32" - 51")
Tripod Leg Diameter: 31.75mm (1.25") steel
Accessory Tray: Yes
Tripod Weight: 5.9 lbs (2.68 kg) includes weight of mount
Slew Speeds: Manual
Dovetail Compatibility: CG-3 saddle plate
Software: Celestron Starry Night Basic Edition Software and SkyPortal App
Total Kit Weight: 13 lbs (5.9 kg)
Solar Warning
  • Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
  • Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
  • Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.