Bushnell 78-8890 Owner's Manual - Page 15

Aligning Northstar For The First Time - - northstar telescope

Page 15 highlights

MALIGNING NORTHSTAR FOR THE FIRST TIME (Continued) Merak, Dubhe and Mizar are bright and relatively easy to find, so you might try one of those. If you are located in the earth's southern hemisphere where the "Big Dipper" is not visible, you can of course still use "ALIGN EARTH" mode, selecting any star you like from the list of visible stars in your area shown on the telescope's display. The star charts towards the back of this manual may also be helpful in choosing a star. Use the UP/DOWN scroll buttons to find the name of the star you've chosen on the display. The display will also show you two numbers with vertical and horizontal arrows, indicating roughly which direction and by how much the telescope needs to be moved to place that star in the center of the telescope's view. If you press the "GO" button, the telescope's motors will move it into a position that is at least "in the ballpark"-remember that you have not finished the alignment process yet, but this may still be helpful to get you in the general area of the sky. The numbers by the position arrows should be closer to "0" now (when they get below 10, the arrows act as "decimal points", displaying each number with greater precision-"8 arrow 4" indicates 8.4). Now you can use the red dot finder scope to aim the telescope more precisely at the star you chose (one within the Big Dipper). Next, looking through the eyepiece, position that star right in the center of the viewing field by moving the telescope by hand or using the motorized movement buttons). Once you have your star centered, press ENTER. After this step is completed, you will see a display that reads: ALIGN COMPLETE RATING ***** (Note: The more stars that appear on the second line of the display the better, up to 5. If the rating is very low, you may need to find and center a different star to better refine the alignment) Step 6: EXPLORE THE NIGHT SKY! After EARTH ALIGN, the display will then read: SELECT MODE EXPLORE 56 Select EXPLORE by pressing ENTER. SCROLL UP and DOWN to see what flashing menu choices you have. Choose PLANET. These are the most interesting. Even if you are a first time telescope user, PLANET objects can be very exciting. Press ENTER when the display reads: EXPLORE PLANET This will take you into a list of named PLANET objects. By using the SCROLL UP or SCROLL DOWN buttons, you can explore several items in the object list. PLANET JUPITER 56 Press ENTER to choose the PLANET you wish to view. The display will then be (the numbers indicate the object's position in degrees of azimuth and altitude) : PLANET 3120 552 JUPITER NOTE: IF AN OBJECT IS CURRENTLY LOCATED BELOW THE HORIZON (WHERE YOU WOULD BE UNABLE TO SEE IT), THE DISPLAY WILL PERIODICALLY DISPLAY THE WORD "HORIZON." SCROLL UP or SCROLL DOWN to see other PLANETS in the list. Notice the display shows you directions to each object. But what if you are a first time user wanting to find out more about the object? Wouldn't it be nice to know what the object is before moving the telescope? 15

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136

15
M
ALIGNING NORTHSTAR FOR THE FIRST TIME
±Continued²
Merak, Dubhe and Mizar are bright and relatively easy to find, so you might try one of those.
If you are located in the
earth's southern hemisphere where the "Big Dipper" is not visible, you can of course still use "ALIGN EARTH" mode,
selecting any star you like from the list of visible stars in your area shown on the telescope's display. The star charts
towards the back of this manual may also be helpful in choosing a star.
Use the UP/DOWN scroll buttons to find the name of the star you've chosen on the display. The display will also show
you two numbers with vertical and horizontal arrows, indicating
roughly
which direction and by how much the
telescope needs to be moved to place that star in the center of the telescope's view. If you press the "GO" button, the
telescope's motors will move it into a position that is at least "in the ballpark"-remember that you have not finished
the alignment process yet, but this may still be helpful to get you in the general area of the sky. The numbers by the
position arrows should be closer to "0" now (when they get below 10, the arrows act as "decimal points", displaying
each number with greater precision-"8 arrow 4" indicates 8.4). Now you can use the red dot finder scope to aim the
telescope more precisely at the star you chose (one within the Big Dipper). Next, looking through the eyepiece, position
that star right in the center of the viewing field by moving the telescope by hand or using the motorized movement
buttons). Once you have your star centered, press ENTER.
After this step is completed, you will see a display that reads:
ALIGN COMPLETE
RATING *****
(Note:
The more stars that appear on the second line of the display the better, up to 5. If the rating is very low, you
may need to find and center a different star to better refine the alignment)
STEP 6:
EXPLORE THE NIGHT SKY!
After EARTH ALIGN, the display will then read:
SELECT MODE
EXPLORE
56
Select EXPLORE by pressing ENTER. SCROLL UP and DOWN to see what flashing menu choices you have. Choose
PLANET. These are the most interesting. Even if you are a first time telescope user, PLANET objects can be very
exciting.
Press ENTER when the display reads:
EXPLORE
PLANET
This will take you into a list of named PLANET objects. By using the SCROLL UP or SCROLL DOWN buttons, you can
explore several items in the object list.
PLANET
JUPITER
56
Press ENTER to choose the PLANET you wish to view. The display will then be
(the numbers indicate the object's position
in degrees of azimuth and altitude)
:
PLANET
3
120
5
52 JUPITER
NOTE:
IF AN OBJECT IS CURRENTLY LOCATED BELOW THE HORIZON (WHERE YOU WOULD BE UNABLE TO SEE IT), THE
DISPLAY WILL PERIODICALLY DISPLAY THE WORD “HORIZON.”
SCROLL UP or SCROLL DOWN to see other PLANETS in the list. Notice the display shows you directions to each object.
But what if you are a first time user wanting to find out more about the object? Wouldn’t it be nice to know what the
object is before moving the telescope?