Orion Deep Space ExplorerTM

12.5" Dobsonian Reflecting Telescopes

  

<Optical Data>

 

Aperture

f/ratio

Secondary
mirror size

Focuser size

focal length

Total weight

12.5"
(317.5mm)

4.8

3.10"
(78.74mm)

1.25"
(31.75mm)

60"
(1524mm)

85 lbs
(38.5 kg)

 

f¼ö

=

´ë¹°·»Áî(¹Ý»ç°æ) ÃÊÁ¡°Å¸®

´ë¹°·»Áî(¹Ý»ç°æ) ±¸°æ

  

 

¹èÀ²

=

´ë¹°·»Áî(¹Ý»ç°æ) ÃÊÁ¡°Å¸®(=1524mm)

¾ÆÀÌÇǽº ÃÊÁ¡°Å¸®

  

  

¿¹) 12.5" Dobsonian ¹Ý»ç ¸Á¿ø°æÀÇ ÃÊÁ¡°Å¸®°¡ 1524mm À̹ǷΠÃÊÁ¡
      °Å¸® 20mmÀÎ ¾ÆÀÌÇǽº·Î °üÃøÇÒ °æ¿ì ¹èÀ²Àº 1524 / 20 = 76.2¹èÀÓ

  

  

  

<º¸À¯ ¸Á¿ø°æÀÇ ¹èÀ²>

 

¾ÆÀÌÇǽº

¹è À²

¾ÆÀÌÇǽº

¹è À²

5mm

304.8¹è

20mm

76.2¹è

7mm

217.7¹è

40mm

38.1¹è

10mm

152.4¹è

 

 

  

´ëºÎºÐÀÇ ÀúÀÛ±ÇÀº byulbee¿¡°Ô ÀÖÀ¸¸ç, ÀϺΠ±×¸²µéÀº ¸¸µç ºÐ²² ÀÖ½À´Ï´Ù. (4332-4333)

Copyright¨Ï1999-2000, byulbee (Kim Choon-ho). All rights reserved.