background image

58

LONGITUDE

LATITUDE

degrees

min

degrees

min

OKLAHOMA

Altus AFB

99

16.2

34

40.2

Ardmore

97

1.2

34

18

Bartlesville

96

0

36

45

Clinton

99

1.2

35

21

Enid

97

4.8

36

22.8

Fort Sill

98

2.4

34

39

Gage

99

46.2

36

18

Hobart

99

3

35

0

Lawton

98

25.2

34

34.2

Mcalester

95

46.8

34

52.8

Norman

97

28.2

35

13.8

Oklahoma

97

3.6

35

24

Page

94

37.2

34

40.8

Ponca City

97

0.6

36

43.8

Stillwater

97

5.4

36

9.6

Tinker AFB

97

22.8

35

25.2

Tulsa

95

5.4

36

12

Vance AFB

97

55.2

36

19.8

OREGON

Astoria

123

52.8

46

9

Aurora

122

45

45

15

Baker

117

49.2

44

49.8

Brookings

124

28.2

42

4.8

Burns Arpt

118

57

43

36

Cape Blanco

124

57

43

22.8

Cascade

121

52.8

45

40.8

Corvallis

123

16.8

44

30

Eugene

123

13.2

44

7.2

Hillsboro

122

57

45

31.8

Klamath Fall

121

43.8

42

9

La Grande

118

0

45

16.8

Lake View

120

21

42

10.8

Meacham

118

2.4

45

30

Medford

122

52.2

42

22.2

Newport

124

3

44

37.8

North Bend

124

15

43

25.2

Ontario

117

1.2

44

1.2

Pendleton

118

51

45

40.8

Portland

122

3.6

45

36

Redmond

121

9

44

16.2

Roseburg

123

22.2

43

13.8

Salem

123

0

44

55.2

Sexton

123

22.2

42

37.2

The Dalles

121

9

45

37.2

Troutdale

122

2.4

45

33

PENNSYLVANIA

Allentown

75

25.8

40

39

Altoona

78

19.2

40

18

Beaver Falls

80

19.8

40

45

Blairsville

79

5.4

40

16.2

Bradford

78

37.8

41

48

Dubois

78

5.4

41

10.8

Erie

80

10.8

42

4.8

Franklin

79

52.2

41

22.8

Harrisburg

76

51

40

13.2

Johnstown

78

49.8

40

19.2

Lancaster

76

1.8

40

7.8

Latrobe

79

2.4

40

16.8

Middletown

76

46.2

40

12

Muir

76

34.2

40

25.8

Nth Philadel

75

1.2

40

4.8

Philadelphia

75

15

39

52.8

Philipsburg

78

7.8

41

28.2

Pittsburgh

79

55.8

40

21

Reading

75

58.2

40

22.8

Site R

77

25.8

39

43.8

State Colleg

77

49.8

40

51

Wilkes-Barre

75

43.8

41

19.8

Williamsport

76

55.2

41

15

Willow Grove

75

9

40

12

RHODE ISLAND

Block Island

71

34.8

41

10.2

Nth Kingston

71

25.2

41

36

Providence

71

25.8

41

43.8

SOUTH CAROLINA

Anderson

82

43.2

34

30

Beaufort

80

43.2

32

28.8

Charleston

80

1.8

32

54

Columbia

81

7.2

33

57

Florence

79

43.2

34

10.8

Greenville

82

21

34

51

Mcentire

80

4.8

33

55.2

LONGITUDE

LATITUDE

degrees

min

degrees

min

Myrtle Beach

78

55.8

33

40.8

Shaw AFB

80

28.2

33

58.2

Spartanburg

81

57.6

34

55.2

SOUTH DAKOTA

Aberdeen

98

25.8

45

27

Brookings

96

4.8

44

18

Chamberlain

99

19.2

43

48

Custer

103

3.6

43

46.2

Ellsworth

103

0.6

44

9

Huron

98

13.2

44

22.8

Lemmon

102

10.2

45

55.8

Mitchell

98

1.8

43

46.2

Mobridge

100

25.8

45

31.8

Philip

101

3.6

44

3

Pierre

100

16.8

44

22.8

Rapid City

103

4.2

44

3

Redig

103

19.2

45

9.6

Sioux Falls

96

43.8

43

34.8

Watertown

97

9

44

55.2

Yankton

97

22.8

42

55.2

TENNESSEE

Bristol

82

2.4

36

28.8

Chattanooga

85

1.2

35

1.8

Clarksville

87

25.2

36

37.2

Crossville

85

4.8

35

57

Dyersburg

89

2.4

36

1.2

Jackson

88

55.2

35

36

Knoxville

83

58.8

35

49.2

Memphis Intl

90

0

35

3

Monteagle

85

30.6

35

9

Nashville

86

40.8

36

7.2

Smyrna

86

3

36

0

TEXAS

Abilene

99

40.8

32

25.2

Alice

98

1.8

27

43.8

Amarillo

101

4.2

35

13.8

Austin

97

4.2

30

18

Bergstrom Af

97

40.8

30

12

Big Sky

101

28.8

32

23.4

Big Spring

101

27

32

18

Brownsville

97

25.8

25

54

Brownwood

98

57.6

31

47.4

Carswell AFB

97

25.8

32

46.8

Chase NAS

97

40.2

28

22.2

Childress

100

16.8

34

25.8

College Stn

96

22.2

30

34.8

Corpus Chrst

97

3

27

46.2

Cotulla

99

13.2

28

27

Dalhart

102

33

36

1.2

Dallas/FW

97

1.8

32

54

Del Rio

100

55.2

29

22.2

Dyess AFB

99

51

32

25.8

El Paso

106

2.4

31

48

Ellington Af

95

10.2

29

37.2

Fort Worth

97

21

32

49.2

Ft Hood Aaf

97

43.2

31

9

Galveston

94

52.2

29

16.2

Gray AFB

97

49.8

31

4.2

Greenville

96

4.2

33

4.2

Guadalupe

104

4.8

31

49.8

Harlingen

97

40.2

26

13.8

Hondo

99

10.2

29

21

Houston

95

21

29

58.2

Junction

99

46.2

30

30

Kelly AFB

98

34.8

29

22.8

Kerrville

99

4.8

29

58.8

Killeen

97

40.8

31

4.8

Kingsville

97

49.2

27

30

Laredo Intl

99

28.2

27

31.8

Laughlin AFB

100

46.8

29

22.2

Longview

94

43.2

32

22.8

Lubbock

101

49.2

33

39

Lufkin

94

45

31

13.8

Marfa

104

1.2

30

22.2

Mcallen

98

13.8

26

10.8

Midland

102

10.8

31

57

Mineral Wlls

98

4.2

32

46.8

Palacios

96

15

28

43.2

Paris/Cox

95

27

33

37.8

Plainview

101

42.6

34

10.2

Port Arthur

94

1.2

30

34.8

Reese AFB

102

3

33

36

Rockport

97

1.8

28

4.8

LONGITUDE

LATITUDE

degrees

min

degrees

min

San Angelo

100

3

31

22.2

San Antonio

98

28.2

29

31.8

Sanderson

102

25.2

30

10.2

South Brazos

95

52.2

28

1.8

Stephenville

98

10.8

32

13.2

Temple

97

25.2

31

9

Tyler/Pounds

95

2.4

32

22.2

Victoria

96

55.2

28

51

Wichita Flls

98

3

33

58.8

Wink

103

1.2

31

46.8

UTAH

Blanding

109

46.8

38

1.8

Bullfrog Mar

110

4.2

37

30

Cedar City

113

0.6

37

42

Delta

112

34.8

39

19.8

Eagle Range

113

4.2

41

3

Green River

110

9

39

0

Hanksville

110

43.2

38

22.2

Hill AFB

111

58.2

41

7.2

Logan

111

51

41

46.8

Milford

113

1.8

38

43.2

Moab

109

45

38

46.2

Ogden

112

1.2

41

10.8

Price/Carbon

110

45

39

37.2

Provo

111

43.2

40

13.2

Roosevelt

110

37.8

40

30

Saint George

113

3.6

37

4.8

Salt Lake Ct

111

58.2

40

46.8

Tooele

112

1.2

40

10.2

Vernal

109

31.2

40

27

Wendover

114

3

41

13.2

VERMONT

Burlington

73

9

44

28.2

Montpelier

72

34.2

44

12

Newport

72

19.8

45

33

Rutland

73

57

43

31.8

St Johnsbury

72

1.2

44

25.2

Wilmington

72

52.8

42

52.8

VIRGINIA

Charlottes

78

27

38

7.8

Chesapeake

76

1.2

37

30

Danville

79

19.8

36

34.2

Fort Belvoir

77

10.8

38

43.2

Fort Eustis

76

37.2

37

7.8

Hot Springs

79

49.2

37

57

Langley AFB

76

22.2

37

4.8

Lynchburg

79

1.2

37

19.8

Newport
News

76

3

37

7.8

Norfolk NAS

76

16.8

36

55.8

Norfolk Rgnl

76

1.2

36

54

Oceana NAS

76

1.8

36

49.2

Quantico Mca

77

1.8

38

30

Richmond

77

19.8

37

30

Roanoke
Muni

79

58.2

37

19.2

Staunton

78

51

38

16.2

Volens

78

58.8

36

57

Wallops Sta

75

28.8

37

51

WASHINGTON

Bellingham

122

31.8

48

48

Bremerton

122

46.2

47

28.8

Burlington

122

19.8

48

30

Colville

118

28.2

48

52.8

Ephrata

119

31.2

47

19.2

Everet/Paine

122

16.8

47

55.2

Fairchild

117

39

47

37.2

Fort Lewis

122

34.8

47

4.8

Hanford

119

3.6

46

34.2

Hoquiam

123

58.2

46

58.2

Mcchord AFB

122

28.8

47

9

Moses Lake

119

19.2

47

12

Oak Harbor

122

40.8

48

15

Olympia

122

5.4

46

58.2

Omak

119

31.8

48

25.2

Pasco

119

7.2

46

16.2

Port Angeles

123

3

48

7.2

Pullman

117

7.2

46

45

Quillayute

124

33

47

57

Renton

122

13.2

47

30

Seattle

122

1.8

47

27

Shelton

123

9

47

15

Spokane

117

31.8

47

37.8

Tacoma

122

34.8

47

16.2

Toledo

122

4.8

46

28.8

Содержание NexStar 11

Страница 1: ...I IN NS ST TR RU UC CT TI IO ON N M MA AN NU UA AL L...

Страница 2: ...EQ South Alignment 18 NexStar Re Alignment 18 Object Catalog 19 Selecting an Object 19 Slewing to an Object 19 Finding Planets 19 Tour Mode 20 Direction Buttons 20 Rate Button 20 Setup Procedures 20 T...

Страница 3: ...ransparency 35 Sky Illumination 35 Seeing 36 CELESTIAL PHOTOGRAPHY 37 Short Exposure Prime Focus Photography 37 Eyepiece Projection 38 Long Exposure Prime Focus Photography 39 Periodic Error Correctio...

Страница 4: ...y other high performance features The NexStar s deluxe features combine with Celestron s legendary Schmidt Cassegrain optical system to give amateur astronomers the most sophisticated and easy to use...

Страница 5: ...se goes over the positioning pin in the center of the tripod head Rotate the base until the holes line up with the mounting holes on the tripod Thread the three mounting bolts from underneath the trip...

Страница 6: ...list of celestial objects that are currently visible Press INFO to read information about the object displayed Press the DOWN scroll key to display the next object Press ENTER to slew to go to the di...

Страница 7: ...agonal 9 Hand Control 4 Eyepiece 10 Fork Arm 5 Finderscope 11 Carrying Handle 6 Finderscope Adjustment Screw 12 Tripod CONTROL PANEL C Auxiliary Port 2 A PC Interface Port D 12v Output Jack B Auxiliar...

Страница 8: ...nd the tube should be positioned horizontal to the ground S S S S S S S Se e e e e e e et t t t t t t tt t t t t t t ti i i i i i i in n n n n n n ng g g g g g g g U U U U U U U Up p p p p p p p T T T...

Страница 9: ...that you can look directly into the eyepiece on the telescope with a diagonal while seated V V V V V V V Vi i i i i i i ib b b b b b b br r r r r r r ra a a a a a a at t t t t t t ti i i i i i i io o...

Страница 10: ...Star base It can cause damage to the internal motors You are now ready to attach the included visual accessories onto the telescope optical tube A A A A A A A At t t t t t t tt t t t t t t ta a a a a...

Страница 11: ...the star diagonal 1 Turn the thumbscrew on the visual back until its tip no longer extends into i e obstructs the inner diameter of the visual back 2 Slide the chrome portion of the star diagonal int...

Страница 12: ...ell of the telescope on the top left when looking from the back of the tube 2 Remove any tape covering the two holes The tape is there to prevent dust and moisture from entering the optical tube befor...

Страница 13: ...from left to right Because of this it may take a few minutes to familiarize yourself with the directional change each screw has on the finder P P P P P P P Po o o o o o o ow w w w w w w we e e e e e e...

Страница 14: ...play screen that is backlit for comfortable viewing of telescope information and scrolling text 2 Align Instructs the NexStar to use a selected star or object as an alignment position 3 Direction Keys...

Страница 15: ...n n n This section describes the basic hand control procedures needed to operate the NexStar These procedures are grouped into three categories Alignment Setup and Utilities The alignment section deal...

Страница 16: ...y aligned with the telescope tube the alignment star should now be visible inside the field of view of the eyepiece The NexStar will ask that you center the bright alignment star in the center of the...

Страница 17: ...control pressing ENTER after each entry Remember to select West for longitudes in North America and North for latitudes in the North Hemisphere For international cities the correct hemisphere is indic...

Страница 18: ...ccurately for photography Note Once a Quick Align has been done you can use the Re alignment feature see below to improve your telescopes pointing and tracking accuracy To use Quick Align 1 Select Qui...

Страница 19: ...ey and enter 042 Slewing to an Object Once the desired object is displayed on the hand control screen choose from the following options Press the INFO Key This will give you useful information about t...

Страница 20: ...ontrol The LCD will display the current speed rate Press the number on the hand control that corresponds to the desired speed The number will appear in the upper right corner of the LCD display to ind...

Страница 21: ...the user to customize the NexStar display by changing time and location parameters such as time zone and daylight savings Sidereal Time Displays the Sidereal time for your current time and location Th...

Страница 22: ...osition of the telescope Get Alt Az Displays the relative altitude and azimuth for the current position of the telescope Goto R A Dec Allows you to input a specific R A and declination and slew to it...

Страница 23: ...ge For more information on using PEC see the section on Celestial Photography Direction Buttons The direction a star moves in the eyepiece varies depending on the accessories being used This can creat...

Страница 24: ...OTO RA DEC MENU Center A lignment S tar 2 C enter A lignment S tar 1 FIND IN G NO R TH S E A R CH IN G GPS ALIGNM ENT E N TE R TIM E E N TE R D A TE M M D D Y Y C enter A lignment S tar 2 Center A lig...

Страница 25: ...r and a secondary mirror Once light rays enter the optical system they travel the length of the optical tube three times The optics of the NexStar have Starbright coatings enhanced multi layer coating...

Страница 26: ...the focal length of the eyepiece used In equation format the formula looks like this Focal Length of Telescope mm Magnification Focal Length of Eyepiece mm Let s say for example you are using the 40mm...

Страница 27: ...e In most cases you will not be able to achieve a truly sharp image while in some cases you may actually see a double image Never look across or over objects that are producing heat waves This include...

Страница 28: ...emisphere from the southern Like the Earth s equator it bears a reading of zero degrees On Earth this would be latitude However in the sky this is referred to as declination or DEC for short Lines of...

Страница 29: ...gh celestial latitudes are always above the horizon and are said to be circumpolar because they never rise and never set You will never see the stars complete one circle because the sunlight during th...

Страница 30: ...ar to align the optical tube parallel with the fork arms it must first use its internal downstop switch as a reference for leveling the tube Even though the downstop has been installed at the factory...

Страница 31: ...e e e e el l l l l l l le e e e e e e es s s s s s s st t t t t t t ti i i i i i i ia a a a a a a al l l l l l l l P P P P P P P Po o o o o o o ol l l l l l l le e e e e e e e In each hemisphere ther...

Страница 32: ...itude until the latitude indicator points to your latitude This method can be done in daylight thus eliminating the need to fumble around in the dark Although this method does NOT put you directly on...

Страница 33: ...ful to have an illuminated reticle eyepiece to help you recognize any drift For very close alignment a Barlow lens is also recommended since it increases the magnification and reveals any drift faster...

Страница 34: ...gnifications Lunar Observing Hints To increase contrast and bring out detail on the lunar surface use filters A yellow filter works well at improving contrast while a neutral density or polarizing fil...

Страница 35: ...hey appear black and white And because of their low surface brightness they should be observed from a dark sky location Light pollution around large urban areas washes out most nebulae making them dif...

Страница 36: ...bend light differently Light rays from the same object arrive slightly displaced creating an imperfect or smeared image These atmospheric disturbances vary from time to time and place to place The siz...

Страница 37: ...be operational since you will be determining the exposure length manually You also need a cable release with a locking function to hold the shutter open while you do other things Mechanical and air re...

Страница 38: ...film In order to get the image large enough you must attach your camera to the telescope with the eyepiece in place To do so you need two additional accessories a deluxe tele extender 93643 which att...

Страница 39: ...x xp p p p p p p po o o o o o o os s s s s s s su u u u u u u ur r r r r r r re e e e e e e e P P P P P P P Pr r r r r r r ri i i i i i i im m m m m m m me e e e e e e e F F F F F F F Fo o o o o o o o...

Страница 40: ...NexStar needs to know the current position of its worm gear so that it has a reference when playing back the recorded error Next you must guide for at least 8 minutes during which time the system reco...

Страница 41: ...uiding is still mandatory for long exposure deep sky astrophotography The optional Reducer Corrector lens reduces exposure times making the task of guiding a little easier When getting started use fas...

Страница 42: ...uce vibration is with the Vibration Suppression Pads These pads rest between the ground and tripod feet They reduce the vibration amplitude and vibration time C C C C C C C CC C C C C C C CD D D D D D...

Страница 43: ...0 focal length divided by diameter The NexStar 8 has a focal length of 80 inches and a diameter of 8 inches also making it an f 10 optical system When the secondary is removed and the CCD camera is pl...

Страница 44: ...10 Medium size to small galaxies f 6 3 imaging gives you finer resolution then at f 2 but the slower f number will usually require you to guide the image while you are taking longer exposures Guiding...

Страница 45: ...he CCD camera cable to the NexStar and calibrating the autoguider Note that the four outputs are active low with internal pull ups and are capable of sinking 25 mA DC Figure 8 5 M27 The Dumbbell Nebul...

Страница 46: ...rom the telescope tube To minimize the need to clean your telescope replace all lens covers once you have finished using it Since the rear cell is NOT sealed the cover should be placed over the openin...

Страница 47: ...and control buttons to move the de focused star image to the edge of the field of view in the same direction that the central obstruction of the star image is skewed 5 While looking through the eyepie...

Страница 48: ...cope at a 45 angle with images that are oriented properly upright and correct from left to right It is useful for daytime terrestrial viewing Eyepieces Like telescopes eyepieces come in a variety of d...

Страница 49: ...nsmission of certain wavelengths of light specifically those produced by artificial lights This includes mercury and high and low pressure sodium vapor lights In addition they also block unwanted natu...

Страница 50: ...opular astronomy software programs Sky Maps 93722 Celestron Sky Maps are the ideal teaching guide for learning the night sky You wouldn t set off on a road trip without a road map and you don t need t...

Страница 51: ...ear Field of View at 1000 yds 47 5 ft 34 5 ft Optical Tube Length 21 25 Weight of Telescope 42 lbs 65 lbs Weight of Tripod 26 lbs 26 lbs Electronic Specifications Input Voltage Maximum Minimum 12 V DC...

Страница 52: ...asured from due north between the astronomical meridian the vertical line passing through the center of the sky and the north and south points on the horizon and the vertical line containing the celes...

Страница 53: ...the end of its life cycle O Open Cluster One of the groupings of stars that are concentrated along the plane of the Milky Way Most have an asymmetrical appearance and are loosely assembled They contai...

Страница 54: ...ing Moon The period of the moon s cycle between new and full when its illuminated portion is increasing Z Zenith The point on the Celestial Sphere directly above the observer Zodiac The zodiac is the...

Страница 55: ...6 Mather AFB 121 1 8 38 34 2 Mcclellan 121 2 4 38 40 2 Merced 120 31 2 37 16 8 Miramar NAS 117 9 32 52 2 Modesto 120 57 37 37 8 Moffet 122 3 37 25 2 Mojave 118 9 35 3 Montague 122 31 8 41 43 8 Montere...

Страница 56: ...wa 92 27 41 6 Sioux City 96 22 8 42 24 Spencer 95 9 43 10 2 Waterloo Mun 92 2 4 42 33 KANSAS Chanute 95 28 8 37 40 2 Col J Jabar 97 13 2 37 45 Concordia 97 39 39 33 Dodge City 99 58 2 37 46 2 Elkhart...

Страница 57: ...ercury 116 1 2 36 37 2 Nellis AFB 115 1 8 36 13 8 Owyhee 116 10 2 42 34 8 Reno 119 46 8 39 30 Tonopah 117 4 8 38 4 2 Wildhorse 116 15 41 19 8 Winnemucca 117 4 8 40 54 Yucca Flat 116 4 8 37 34 8 NEW HA...

Страница 58: ...101 27 32 18 Brownsville 97 25 8 25 54 Brownwood 98 57 6 31 47 4 Carswell AFB 97 25 8 32 46 8 Chase NAS 97 40 2 28 22 2 Childress 100 16 8 34 25 8 College Stn 96 22 2 30 34 8 Corpus Chrst 97 3 27 46...

Страница 59: ...3 25 e 52 30 n Birmingham England 1 55 w 52 25 n Bombay India 72 48 e 19 0 n Bordeaux France 0 31 w 44 50 n Bremen Germany 8 49 e 53 5 n Brisbane Australia 153 8 e 27 29 s Bristol England 2 35 w 51 28...

Страница 60: ...eful to check communication Goto Azm Alt B12AB 4000 10 characters sent B Command 12AB Azm comma 4000 Alt If command conflicts with slew limits there will be no action Goto Ra Dec R34AB 12CE Scope must...

Страница 61: ...61 APPENDIX E MAPS OF TIME ZONES...

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Страница 69: ...nds of meteors per hour Solar Eclipses in North America plus Total Eclipses Around the World Date Eclipse Type Duration Location 2001 Dec 14 Annular 03m53s North America Hawaii 2001 Jun 21 Total 04m57...

Страница 70: ...rized repair Further product malfunction or deterioration due to normal wear is not covered by this warranty CI DISCLAIMS ANY WARRANTIES EXPRESS OR IMPLIED WHETHER OF MERCHANTABILITY OF FITNESS FOR A...

Страница 71: ...et Torrance CA 90503 Tel 310 328 9560 Fax 310 212 5835 Web site at http www celestron com Copyright 2001 Celestron International All rights reserved Products or instructions may change without notice...

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