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Kingdom of Saudi ArabiaQASEEM UNIVERSITYScientific Research Deanship

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Sky Quality Meter28

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: : ( ) : . . . . . . . . . .

. . 1433 - 2012

: 10 ( 1432) 16 (-16 ). 1426 .

1. . : : .. : [endnoteRef:1] . [1: (18774) , (889) (3016)(3044) (3015) .]

2. : .

3. : :3.1 .3.2 .3.3 ( ) (-18 ) .3.4 () .3.5 .3.6 Sky Quality Meter .

4. : .

1:1000000 1:500000 1:250000 ( ) () 160 (1) (2).

: 34 37 41 45 46 63 70 81 81 81 60 . 81 .

( ) 40 583 : N2659470 E04429798 300 60 . (1) .: .[endnoteRef:2] [2: 1419 .]

(2) .: [endnoteRef:3] Google Earth 2012. [3: Google Earth 2012]

5. : 7 . 150 " ". ( ) . ( ) ( ) . . 2011 (1).

(1) .

2011 (2012) 2012 . . 150 ( 300 ) 60 . . .

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(2) . . . . Sky Quality Meter . 30 (2) .

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: : .. .[endnoteRef:5] [5: 3/44 .]

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: : : . . : 3038- : : : [endnoteRef:10]. [10: 3/261 .]

. ( ) ( ) ( ) () () () () () . 12-19 1406 : ": ( ) (18) " [endnoteRef:11] . [11: www.themwl.org/Fatwa/default.aspx?d=1&cidi=110&l=AR&cid=11 : . .]

6-10 1424 31 2003 4 2004[endnoteRef:12]. [12: http://e-cfr.org/ar/index.php?ArticleID=280]

: : - : - [endnoteRef:13] : [endnoteRef:14]. [13: www.ibnothaimeen.com/all/khotab/article_385.shtml] [14: 2/112-113 1415 .]

( ) : : ( ) [endnoteRef:15]. [15: . 5 1428 .]

.... .

8. The Zodiacal Light: [endnoteRef:16] . [16: www.skyandtelescope.com/community/skyblog/observingblog/86394942.html]

The zodiacal band ( ) . . (3) 30 (3) [endnoteRef:17] ecliptic. [17: www.weatherscapes.com/techniques.php?cat=astronomy&page=zodiacallight]

(3) () .

(3) : TheSky Professional Edition Astronomy Software.

1400 : : [endnoteRef:18] 1690 Gian Domenico Cassini[endnoteRef:19] (4). [18: 13.] [19: www.infoplease.com/ce6/sci/A0853475.html]

(4) .

: " [footnoteRef:1] "[endnoteRef:20] . . 2010 ( ) 5[endnoteRef:21] . [1: ] [20: www.waqfeya.com/book.php?bid=2831 (2010) ] [21: .]

18 Astronomical Twilight .

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10. 17 (1) 10 4 10 7 .

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109 1432 10 20116 ( )

1128 143230 20118 ( )

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1312 14336 20125 ( )

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15 1433 ( 2012) .

16 1433 ( 2012) .

(2) .

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27 201004:4616

35 201005:0016.3

49 201005:2016.7

513 201105:2816.5

610 201103:4316.5

730 201103:4916.2

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96 201205:4015.6

1030 201204:4715.6

11 16

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117 20104:39005:4801:09

27 201004:4605:5801:12

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49 201005:2006:4001:20

513 201105:2806:4101:13

610 201103:4305:0701:24

730 201103:4905:1101:22

830 201104:0805:2501:17

96 201205:4006:5201:12

1030 201204:4705:5501:08

11 01:15

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117 20104:39004:2712

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610 201103:4303:358

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96 201205:4005:2911

1030 201204:4704:3611

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(16) (18)(17.5) [endnoteRef:23] [23: www.icoproject.org/%D8%AC%D9%85%D8%B9%D9%8A%D8%A9-%D8%A5%D8%B3%D9%86%D8%A7-%D8%AA%D8%B9%D8%AA%D9%85%D8%AF-%D8%B2%D9%88%D8%A7%D9%8A%D8%A7-%D8%AC%D8%AF%D9%8A%D8%AF%D8%A9-%D9%84%D9%84%D8%AC%D8%B1-%D9%88%D8%A7%D9%84%D8%B9%D8%B4%D8%A7%D8%A1_ad-id!81.ks]

(14.6)

11 05:3605:2705:2905:4305:33

21 05:3605:2705:2905:4205:33

31 05:1605:0705:0905:2205:13

41 04:4204:3304:3504:4904:39

51 04:0903:5804:0104:1604:06

61 03:4803:3603:3903:5503:44

71 03:5003:3903:4203:5803:47

81 04:1003:5904:0204:1704:07

91 04:3004:2004:2304:3604:27

101 04:4504:3604:3804:5104:42

111 05:0104:5204:5405:0704:58

121 05:2005:1105:1305:2705:17

: 400 30 Canon EOS 5D Mark II : 16 mm Focal length 30 Exposure time 30 s F/2.8 Shutter speed value 32.000000 s. .

11. Sky Quality Meter: Sky Quality Meter (SQM) (4) 21.23 21.56 magnitudes/arcsecond2 Sky Quality Meter .

(4) Sky Quality Meter (SQM).

12. : 10 ( 1432) 16 (-16 ). .

13. :