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Computerised Reflectors |
Specifications |
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| Model Name & Number | Celestron Advanced Series 31054 - C6-NGT |
Celestron Advanced Series 11048-XLT - C10-NGT |
Celestron Advanced Series
31062 - C8-NGT |
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| Optical Design : | Reflector | Reflector | Reflector | |
| Aperture : | 150 mm (5.91 in) | 254 mm (10 in) | 203.2 mm (8 in) | |
| Focal Length : | 750 mm (29.53 in) | 1200 mm (47.24 in) | 1000 mm (39.37 in) | |
| Focal Ratio : | 5 | 4.72 | 4.92 | |
| Finderscope : | 6x30 | 9x50 | 9x50 | |
| Mount : | CG-5 Equatorial | CG-5 Equatorial | CG-5 Equatorial | |
| Eyepiece 1 : | 20 mm (0.79 in) | 20 mm (0.79 in) | 20 mm (0.79 in) | |
| Magnification 1 : | 38 x | 60 x | 50 x | |
| Accessory Tray : | Yes | Yes | Yes | |
| Tripod : | 2 inch Stainless Steel | 2 inch Stainless Steel | 2 inch Stainless Steel | |
| CD ROM : | "The Sky®" Level 1 | "The Sky®" Level 1 | The Sky®" Level 1 | |
| Power Supply : | Car Battery Adapter | Car Battery Adapter | Car Battery Adapter | |
| Highest Useful Mag : | 354 x | 600 x | 480 x | |
| Lowest Useful Mag : | 21 x | 36 x | 29 x | |
| Limiting Stellar Mag: | 13.4 | 14.5 | 14 | |
| Resolution (Rayleigh): | 0.93 arcsec | 0.55 arcsec | 0.69 arcsec | |
| Resolution (Dawes) : | 0.77 arcsec | 0.46 arcsec | 0.57 arcsec | |
| Photographic Resolution : | 400 line/mm | 425 line/mm | 400 line/mm | |
| Light Gathering Power : | 459 x | 1317 x | 843 x | |
| Angular FOV: | 1.3 ° | 0.83 ° | 1° | |
| Linear FOV (@1000 yds) : | 68 ft (20.73 m) | 44 ft (13.41 m) | 53 ft (16.15 m) | |
| Optical Coatings : | Aluminum | Aluminum | Aluminum | |
| S/ Mirror Obstruction : | 1.75 in (44.45 mm) | 2.3 in (58.42 mm) | 2.2 in (55.88 mm) | |
| S/ Mirror Obstruction Area : | 8.8 % | 5.3 % | 7.6% | |
| S/ Mirror Obstruction Dia : | 29.6 % | 23 % | 27.5 % | |
| Optical Tube Length : | 27 in (685.8 mm) | 45 in (1143 mm) | 37 in (939.8 mm) | |
| Telescope Weight : | 54 lb (24.49 kg) | 94 lb (42.64 kg) | 67 lb (30.39 kg) | |
| Counterweights : | 1-7lb, 1-4lb | 3-11lb | 2-11lb | |
| Motor Drive : | DC Servo motors with encoders, both axes | DC Servo motors with encoders, both axes | DC Servo motors with encoders, both axes | |
| Computer Hand Control: | Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons |
Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons | Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons | |
| S/ Speeds : | 3°/sec | 3°/sec | 3°/sec | |
| Tracking Rates : | Sidereal, Solar and Lunar | Sidereal, Solar and Lunar | Sidereal, Solar and Lunar | |
| Tracking Modes : | EQ North and EQ South | EQ North and EQ South | EQ North and EQ South | |
| Alignment Procedures : | AutoAlign, 2-Star Alignment, Quick Align |
AutoAlign, 2-Star Alignment, Quick Align | AutoAlign, 2-Star Alignment, Quick Align | |
| Software Precision : | 24bit, 0.08 arcsec calculation | 24bit, 0.08 arcsec calculation | 24bit, 0.08 arcsec calculation | |
| Communication Ports : | RS-232 communication port on hand control | RS-232 communication port on hand control | RS-232 communication port on hand control | |
| Motor Ports : | Aux Port, Autoguide Ports | Aux Port, Autoguide Ports | Aux Port, Autoguide Ports | |
| Database : | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects | |
Price |
$1,910.00 | $2,989.00 |
$2,455.00 | |
| Specifications |  |
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| Model Name & Number | Celestron NexStar SLT 31143 - 114mm |
Celestron NexStar SLT 31145 - 130mm |
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| Optical Design: | Reflector | Reflector | ||
| Aperture: | 114 mm (4.49 in) | 130 mm (5.12 in) | ||
| Weight: | 15 lb (6.8 kg) | 18 lb (8.16 kg) | ||
| Focal Length: | 1000 mm (39.37 in) | 650 mm (25.59 in) | ||
| Focal Ratio: | 8.77 | 5 | ||
| Finderscope: | StarPointer | StarPointer | ||
| Mount: | Motorized Altazimuth | Motorized Altazimuth | ||
| Eyepiece 1: | 25 mm (0.98 in) | 25 mm (0.98 in) | ||
| Magnification 1: | 40 x | 26 x | ||
| Eyepiece 2: | 9 mm (0.35 in) | 9 mm (0.35 in) | ||
| Magnification 2: | 111 x | 72 x | ||
| Accessory Tray: | No Tool, Quick release | No Tool, Quick release | ||
| Tripod: | Steel | Steel | ||
| CD ROM: | "The Sky®" Level 1 and NexStar Observers List (v2.6.4c) | "The Sky®" Level 1 and NexStar Observers List (v2.6.4c) | ||
| Highest Useful Magnification: | 269 x | 307 x | ||
| Limiting Stellar Magnitude: | 12.8 | 13.1 | ||
| Resolution (Rayleigh): | 1.22 arcsec | 1.07 arcsec | ||
| Resolution (Dawes): | 1.02 arcsec | 0.89 arcsec | ||
| Photographic Resolution: | 228 line/mm | 400 line/mm | ||
| Light Gathering Power: | 265 x | 345 x | ||
| Angular FOV: | 1.1 ° | 1.7 ° | ||
| Linear FOV (@1000 yds): | 59 ft (17.98 m) | 91 ft (27.74 m) | ||
| Optical Coatings: | Aluminum | Aluminum | ||
| S/ Mirror Obstruction: | 1.6 in (40.64 mm) | 1.7 in (43.18 mm) | ||
| S/ Mirror Obstruction by Area: | 12.7 % | 11 % | ||
| S/ Mirror Obstruction by Dia: | 35.6 % | 33.2 % | ||
| Computer Hand Control: | Fully Computerized / Flash Upgradeable | Fully Computerized / Flash Upgradeable | ||
| Slew Speeds: | Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, .5°/sec, 32x, 16x, 8x, 4x, 2x | Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, .5°/sec, 32x, 16x, 8x, 4x, 2x | ||
| Tracking Rates: | Sidereal, Solar and Lunar | Sidereal, Solar and Lunar | ||
| Tracking Modes: | Alt-Az, EQ North and EQ South | Alt-Az, EQ North and EQ South | ||
| Alignment Procedures: | SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align | SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align | ||
| Database: | 4,000 Object Database | |||
| GPS: | Optional CN-16 GPS Accessory | Optional CN-16 GPS Accessory | ||
| Price | $749.00 | $845.00 | ||