ตอนนี้เป็นมือใหม่ครับไม่ค่อยรู้เรื่องเกี่ยวกับกล้องดูดาวซักเท่าไหร่คือสนใจรุ่น Celestron PowerSeeker 80EQ อยู่เเต่ไปเจอดูกล้องดูดาวเเบบผสมรุ่น Celestron NexStar 4SE เเต่กำลังขยายมันน้อยกว่ารุ่น Celestron PowerSeeker 80EQ ส่วนกำลังขยายของ Celestron PowerSeeker 80EQ คือ 45 เท่า กับ 225 เท่า ส่วน Celestron NexStar 4SE คือ 50 เท่า ก็สงสัยว่ารุ่นยิ่งเเพงกำลังขายมันก็ต้องเพิ่มไม่ใช่หรอครับจึงมาขอความรู้เพิ่มเติมครับ
อันนี้ Spec ของ Celestron NexStar 4SE ครับ
Optical Design Maksutov-Cassegrain
Aperture (mm) 102 mm (4.02 in)
Focal Length (mm) 1325 mm (52 in)
Focal Ratio 13
Eyepiece 1 (mm) 25 mm (0.98 in)
Magnification 1 53 x
Finderscope StarPointer
Star Diagonal Internal Flip mirror for straight thru or 90 viewing angle
Mount Single Fork Arm Altazimuth
Optical Tube Aluminum
Other Equipment Camera Shutter Cable
Tripod Steel with built-in wedge
Power Supply 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 (Compared to human eye) 212 x
Angular Field of View (deg) 1 °
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)
Telescope Weight 11 lbs (4.99 kg)
Tripod Weight 10 lbs (4.54 kg) lbs (4.54 kg)
Payload Capacity 10 lbs (4.54 kg)
Motor Drive Integrated D.C. Electronics
Slew Speeds Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 64x, 16x, 8x, 4x, 1x, .5x
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Alt-Az, EQ North & EQ South
Software Features Camera Control
Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
Software Precision 24 bit, 0.08 arcsec calculations
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
Dovetail Compatibility Quick Release Tube Clamp
อันนี้ของ Celestron PowerSeeker 80EQ ครับ
Optical Design Refractor
Aperture (mm) 80 mm (3.15 in)
Focal Length 900 mm (35 in)
Focal Ratio 11
Focal Length of Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification of Eyepiece 1 45 x
Focal Length of Eyepiece 2 (mm) 4 mm (0.16 in)
Magnification of Eyepiece 2 225 x
Barlow Lens 3 x
Finderscope 5x24
Star Diagonal 1.25" Erect Image Diagonal
Mount Type German Equatorial
Accessory Tray No-Tool Tray with Eyepiece holder
Tripod Aluminum
Highest Useful Magnification 189 x
Lowest Useful Magnification 11 x
Limiting Stellar Magnitude 12
Resolution (Rayleigh) 1.74 arc seconds
Resolution (Dawes) 1.45 arc seconds
Light Gathering Power (Compared to human eye) 131 x
Apparent Field of View 1.2 °
Linear Field of View (@1000 yds) 61 ft (19 m)
Optical Coatings Multi-Coated
Optical Tube Length 38 in (965 mm)
Total Telescope Kit Weight 19 lbs (8.62 kg)
Warranty 2-year Telescope Warranty
ขอบคุณครับ
ถามเรื่องกล้องดูดาวหน่อยครับ
อันนี้ Spec ของ Celestron NexStar 4SE ครับ
Optical Design Maksutov-Cassegrain
Aperture (mm) 102 mm (4.02 in)
Focal Length (mm) 1325 mm (52 in)
Focal Ratio 13
Eyepiece 1 (mm) 25 mm (0.98 in)
Magnification 1 53 x
Finderscope StarPointer
Star Diagonal Internal Flip mirror for straight thru or 90 viewing angle
Mount Single Fork Arm Altazimuth
Optical Tube Aluminum
Other Equipment Camera Shutter Cable
Tripod Steel with built-in wedge
Power Supply 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 (Compared to human eye) 212 x
Angular Field of View (deg) 1 °
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)
Telescope Weight 11 lbs (4.99 kg)
Tripod Weight 10 lbs (4.54 kg) lbs (4.54 kg)
Payload Capacity 10 lbs (4.54 kg)
Motor Drive Integrated D.C. Electronics
Slew Speeds Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 64x, 16x, 8x, 4x, 1x, .5x
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes Alt-Az, EQ North & EQ South
Software Features Camera Control
Alignment Procedures SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, SolarSystem Align
Software Precision 24 bit, 0.08 arcsec calculations
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
Dovetail Compatibility Quick Release Tube Clamp
อันนี้ของ Celestron PowerSeeker 80EQ ครับ
Optical Design Refractor
Aperture (mm) 80 mm (3.15 in)
Focal Length 900 mm (35 in)
Focal Ratio 11
Focal Length of Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification of Eyepiece 1 45 x
Focal Length of Eyepiece 2 (mm) 4 mm (0.16 in)
Magnification of Eyepiece 2 225 x
Barlow Lens 3 x
Finderscope 5x24
Star Diagonal 1.25" Erect Image Diagonal
Mount Type German Equatorial
Accessory Tray No-Tool Tray with Eyepiece holder
Tripod Aluminum
Highest Useful Magnification 189 x
Lowest Useful Magnification 11 x
Limiting Stellar Magnitude 12
Resolution (Rayleigh) 1.74 arc seconds
Resolution (Dawes) 1.45 arc seconds
Light Gathering Power (Compared to human eye) 131 x
Apparent Field of View 1.2 °
Linear Field of View (@1000 yds) 61 ft (19 m)
Optical Coatings Multi-Coated
Optical Tube Length 38 in (965 mm)
Total Telescope Kit Weight 19 lbs (8.62 kg)
Warranty 2-year Telescope Warranty
ขอบคุณครับ