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Celestron NexStar 4 SE Maksutov-Cassegrain Computerized Telescope

Model #11049

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Specifications

General Information

Optical Design Maksutov-Cassegrain
Aperture (mm) 102 mm (4.02 in)
Focal Length 1325 mm (52 in)
Focal Ratio 13
Focal Length of Eyepiece 1 (mm) 25 mm (0.98 in)
Magnification of Eyepiece 1 53 x
Finderscope StarPointer
Star Diagonal Internal Flip mirror for straight thru or 90 viewing angle
Mount Type Single Fork Arm Altazimuth
Tripod Steel with built-in wedge
Power Requirements 8-AA batteries (not included)
Highest Useful Magnification 241 x
Lowest Useful Magnification 15 x
Limiting Stellar Magnitude 12.5
Resolution (Rayleigh) 1.37 arc seconds
Resolution (Dawes) 1.14 arc seconds
Light Gathering Power 212 x
Apparent Field of View 1 degree
Linear Field of View (@1000 yds) 53 ft (16 m)
Secondary Mirror Obstruction 1.38 in (35 mm)
Secondary Mirror Obstruction by Diameter 34%
Secondary Mirror Obstruction by Area 12%
Optical Coatings StarBright XLT
Optical Tube Length 13.5 in (343 mm)
Total Telescope Kit Weight 11 lbs (4.99 kg)
Tripod Weight 10 lbs (4.54 kg) lbs (4.54 kg)
Slew Speeds Nine slew speeds
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Alt-Az, EQ North & EQ South
Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
Communication Ports RS-232 communication port on hand control, Aux port, Camera Control port
Computer Hand Control Double line, 16 character Liquid Crystal Display with 19 fiber optic backlit LED buttons
Database 38,181 accessible objects
Warranty 2-year Telescope Warranty
Expert Reviews
Justech n.34751993
28 April 2007
4.0/10

The optics on the telescope are really good. I was able to see planets really clear. The problems I had were with the software and taking pictures. Even though this is suppose to make finding stars easier, I found it to be unreliable and cumbersome.

User Reviews
B h photo.34921152
26 September 2017
10/10

Great buy! I really like it. It's small and light enough to easily set up and move around. Very good build quality. Included eyepiece is very good as is the really nice tripod. GoTo works well and the hand controller has a USB port for upgrades.

B h photo.34921152
20 June 2016
8.0/10

Good first scope. It is still a lot of money but I am sure it will be worth it. I live just 20 miles from Manhattan and still within the 5 boroughs. Had no problem seeing stars the night I purchased the scope. Took some pictures of the moon with it and the images were very sharp.

B h photo.34921152
2 August 2018
8.0/10

This is my first scope and I bought it to take to the national parks out west. In retrospect, I think the 5 inch is probably abut as portable, but I'm happy with the 4 too. It is easy to set up and operate. The focus nob rubber isn't tight, and affects the focusing, but otherwise a great scope.

B h photo.34921152
17 January 2017
10/10

Great scope, easy to use, good bang for the buck. We use ours with the Skyportal WiFi module and enjoy it everytime we get it out. Our kids 4, 6, 8, 10 years love to get it out and look at the sky.

B h photo.34921152
30 December 2009
6.0/10

I bought this for casual observing and to get my kids interested in astronomy. It fits the bill perfectly. Super compact, easy to transport and set up, and easy to get observing soon after setup. Very solidly built. Better optics than the 3-in refractor I owned previously.

Wex.33757758
7 September 2021
8.0/10

I only just bought this scope at the weekend online and Wex delivered prompty in less than 48hrs which I was really impressed, so thank you Wex good job.Lovely scope, I could see that the optics in the eye piece were first class (as you would expect from Celestron) when doing some day light distant...

  • +

    Durable, Great Features, Great Picture Quality, Simple Controls

  • -

    eats batteries get a power supply or powerTank, many distant nebula, not captured

B h photo.34921152
21 February 2019
10/10

I have been using a celestron evolution 8 telescope with a separate wedge since 3 years. Ive had two main issues with that scope.Firstly its heavy and bulky. together with wedge, it weights 27 kgs (60 lbs).

Product Highlights
  • NexStar 4 SE Maksutov-Cassegrain Telescope
  • Ideal for flexible high-performance expansion
  • Moon Filter
  • Cleaning Kit
  • Type: Maksutov Cassegrain Telescope
  • Aperture: 4" (102mm) Aperture
  • Series: Celestron Nexstar SE
In The Box
  • NexStar 4 SE Computerized Telescopee
  • 25mm E-Lux (53x) Eyepiece
  • StarPointer Finderscope
  • Internal Flip Mirror Diagonal for Straight Thru or 90° Viewing Angle
  • Pre-assembled Steel Tripod with Built-in Wedge
  • Software: NexRemote & The Sky L1
  • Celestron Warranty
  • Note: 8-AA Batteries (not included)
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