Results 1 to 6 of 6
  1. #1
    Dave Hedgehog's Avatar
    Dave Hedgehog Guest

    Default Advice please : Celestron Nexstar SLT 102 vs Celestron Nexstar 4 SE



    Hello all,
    I am interested in getting a telescope mainly looking at the planets &
    galaxies. I'm not really interested in astrophotography at the moment
    but I guess this may come in the future.

    The above 2 scopes are in my price range & was hoping somebody on here
    with more technical knowlege of scopes etc could advise me what they
    would consider the best buy.

    The magnification of the Nexstar 4 SE using a 25mm eyepiece is given
    as 53x whereas the SLT 102 has 26.4x.
    Is this all a newbie astronomer, who just wants to take it out into
    his back garden & have a browse around the sky, should be interested
    in. Both scopes are obviously computer controlled which makes my life
    easier when trying to find things.

    The Nexstar 4 SE is quite a new scope, I believe, so if anybody
    actually has one & could provide their comments that would be great.

    Thanks in advance,
    Dave


  2. #2
    Jeff Taylor's Avatar
    Jeff Taylor Guest

    Default Advice please : Celestron Nexstar SLT 102 vs Celestron Nexstar4 SE

    Dave Hedgehog wrote:

    Hi Dave,

    Funnily enough, I'm looking at one of these as a second 'grab and go'
    scope to my 6-inch refractor.

    Currently I'm leaning towards the SLT 102 as I've always found
    refractors to be trouble-free as far as maintenance is concerned.

    If you look at the Cloudy Nighs forums there is a one specifically for
    NexStars with a lot of usefuls hands-on opinions of both scopes:

    http://www.cloudynights.com/ubbthrea....php/Cat/0/C/5

    The reason for the difference in magnification is the difference in
    focal length of the 2 scopes

    SLT 102 = 660mm
    4 SE = 1325mm

    Magnification = focal length of objective (lens/mirror) divided by focal
    length of eyepiece, hence

    1325/25 = 53x
    660/25 = 26.4

    Do a search for "telescope buying FAQ" and you'll find a number of sites
    that will give a far better explanation of the merits of short/long
    focal lengths than I could ever do :-)

    To be honest, from what I've read so far, I think you'd be happy with
    either scope.
    Not much help eh? - ha ha

    Good luck,

    Jeff
    NE England

  3. #3
    sxinias's Avatar
    sxinias is online now Super Moderator
    Points: 322,851, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 39.0%
    Achievements:
    Got three Friends20+ Friends Achievement!First 1000 Experience Points5+ Referrals Achievement!100+ Threads Achievement!
    Awards:
    Attachments Award
    Join Date
    Nov 2008
    Location
    Marathon Greece summer Tampa Florida winter
    Posts
    17,799
    Points
    322,851
    Level
    100
    Thanks
    4,582
    Thanked 10,188x 6,473 Posts
    Blog Entries
    4

    Default

    Dave,

    The debate between advocates of refractors and CATs has no end. The longer focal length of the Nexstar 4SE results in higher magnifications but with a smaller field of view than the shorter focal length SLT 102. I have a 102mm SCT and a 90mm refractor. Both scopes have their strengths and weaknesses. Both provide excellent views of the universe. Between the two, I find the SCT with its longer focal length provides more details of similar deep space objects than the shorter focal length but slightly smaller refractor. With a small scope like a 102mm, this ability is an important advantage, at least for me.

    The Nexstar 4SE has a few characteristics that, in my opinion, make it a better choice than the SLT 102. It is more compact making it easier to transport and store if these are issues that concern you. The Nexstar 4SE, like most CATS, has almost an endless variety of accessories available on the market. Finally the Nexstar 4SE can go from an altitude azimuth mount to an equatorial mount if you ever wish to go that route. Having said that, neither mount is the rock solid kind of mount that astrophotographers like to use.

    I suspect in the end, it sort of boils down to whether or not you are a refractor man or a CAT man.

    There is another scope in this same price range that you may wish to consider, the Nexstar 130 SLT, a Newtonian scope. Its larger aperture will provide you far more pleasing views of deep space objects than the smaller SLT 102 or 4SE are capable of providing.

    Joe
    Sxinias Greece
    Meade DS2090AT
    Meade 2045 SCT
    Celestron C6S

  4. #4
    astrogirl's Avatar
    astrogirl is offline Main Sequence
    Points: 7,665, Level: 61
    Level completed: 39%, Points required for next Level: 185
    Overall activity: 0%
    Achievements:
    10 Days registered200+ Posts Achievement!First 1000 Experience Points365 Days+ Registered Achievement!750 Days+ Registered Achievement!
    Join Date
    Dec 2009
    Location
    Australia
    Posts
    130
    Points
    7,665
    Level
    61
    Thanks
    34
    Thanked 13x 12 Posts

    Default Which one did you end up with?

    Hi Dave,
    I found this thread very useful as they are 2 of the 3 telescopes I have shortlisted. I have not made my decision as yet but I am leaning towards the 102 as it is a refractor.

    Which one did you end up going for Dave, if any of them?

    Thanks.
    Niki
    You only get one life - make the most of it!

    Location: Longitude 0° 0' 0" Latitude 51° 28' 38"N
    Equipment: Nextstar 4se
    Software: Stellarium
    Knowledge: Always open to and happy to be learning!
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  5. #5
    WWPierre's Avatar
    WWPierre is offline HYPER GIANT
    Points: 64,445, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    10 Days registered3 Years + Achievement400+ Posts AchievementGhost Achievement! Averaging 5+ posts a day!1000 Days+ Registered Achievement!
    Join Date
    Jun 2009
    Location
    Squamish B.C.
    Posts
    6,948
    Points
    64,445
    Level
    100
    Thanks
    1,095
    Thanked 2,953x 1,808 Posts

    Default

    Hi Astrogirl, These are very old posts, (2007) You are not likely to get a reply from Dave.
    Meade 16" LightBridge; Celestron G-8N Bird-Jones/motorized EQ5;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    127 Mak/go-to EQ5; Burgess 127f8 refractor; Sky-Watcher 5" F/5 collapsible dob; 90mm Mak/motorized EQ2; Royal Astro 76/910-GEM; Meade 60x700 refractor/alt/az; Zhumell 25x100 Coin Ops; GalilleoScope. Celestron 8mm-24mm zoom; lots of fixed EPs,some good, some..not so much. A small collection of surveying instruments; a forest of tripods; Canon Rebel Xti. Confirmed gadget junkie; Custodian of the Magnetic North Pole (Send $1.00 to Pierre each time you use a compass.)
    49-41-37.03N 123-09-29.61W Calculated magnetic declination: 17° 39' East

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    We have been broadcasting our presence to the Universe for 100 years now. If there is a detachment of Galactic Pest Control within 100 light years, they are already on the way.

  6. #6
    Bob327's Avatar
    Bob327 is offline HYPER GIANT
    Points: 41,366, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    10 Days registered200+ Posts Achievement!First 1000 Experience PointsGot three Friends365 Days+ Registered Achievement!
    Join Date
    Sep 2009
    Location
    Frederick Maryland
    Posts
    9,247
    Points
    41,366
    Level
    100
    Thanks
    19
    Thanked 4,039x 3,068 Posts

    Default

    Dave:
    Both scopes will do just fine for lunar and Planatary viewing... BUT I would prefer the Mak (4Se) for that purpose...

    Neither is going to be of much use on Galaxies...both just too small ... For brighter DSO's both are fine with the edge to the 102 because it will have a wider FOV.. So for Open Clusters etc the 102 would be my choice...

    Magnification is NOT the name of the game with telescopes... its all about gathering light and therefore the
    scope with the larger aperture always wins...

    As far as magnification goes ..no matter what scope I have outside on any given night I will be observing mostly from 40x to 200x Low powered for the faint fuzzies (DSO) and higher power for the moon and planets... This is true if I am viewing with my 4" or 5" refractor or My 8" or 11" SCTs...


    Disadvantage of the Mak (4Se) is cool down time...and narrow FOV... and lack of aperture.

    Disadvanatge of the 102 is also the lack of aperture Plus some false color of an bright objects (moon)


    If it were me...I'd get more use out of the 102 for casual viewing from the garden.. Mainly because it is ready to use the minute you walk it outside no matter what the temperature is, has the ability to see Planets in detail and has a wider FOV to take in open clusters etc... BUT I would have to buy a Minus Violet filter if I intended to be looking at the Moon very much...

    THERE IS NO PERFECT SCOPE.... which is a major reason many of us own 2 OR MORE telescopes...

    Bob G
    CPC1100 housed in a slotted domed observatory (Exploradome) 4 and 5 inch refractors for use from the lawn, a 8" Sct (NS 8i) for star parties...
    I Hate the winter so I use heated Motorcycle clothing to stay warm while observing in winter
    Retired, also have 2 other hobbies
    1. tinker with older Corvettes (6 in garage)
    2. make a heck of a lot of sawdust in my wood shop.

 

 

Similar Threads

  1. Celestron NexStar 130 SLT versus Celestron AstroMaster 130 EQ
    By northlandca in forum Celestron NexStar Telescope Forum
    Replies: 17
    Last Post: 07-08-2011, 09:48 AM
  2. Buying Advice - Celestron C5 with Nexstar
    By davesnums in forum Celestron NexStar Telescope Forum
    Replies: 7
    Last Post: 01-17-2011, 10:51 PM
  3. Celestron NexStar 6SE Advice
    By NEfrontier in forum Catadioptric Telescope Forum
    Replies: 18
    Last Post: 12-09-2010, 10:44 PM
  4. For Sale: Celestron Nexstar 4 SE, Celestron accessory kit, AstroZap dew shield, and AC adapter.
    By Cladinator in forum Astronomy Classifieds
    Replies: 2
    Last Post: 10-14-2010, 07:25 PM
  5. Would a Celestron NexStar 4 be better than a 6'' Celestron Starhopper dob?
    By motorhead938 in forum Celestron NexStar Telescope Forum
    Replies: 4
    Last Post: 06-02-2009, 03:14 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 06:55 PM.