Celestron CPC DELUXE 1100 HD, Instruction Manual

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˜‡–Š‘—‰Š–Š‡ ƒ’”‡ ‹•‡Ž›–”ƒ ƒ ‡Ž‡•–‹ƒŽ‘„Œ‡ –™Š‹Ž‡‹–Š‡
Alt-Az position, it is still necessary to align the polar axis of the telescope
(the fork arm) to the Earth’s axis of rotation in order to do long exposure
astrophotography. To do an accurate polar alignment, the CPC requires
an optional equatorial wedge between the telescope and the tripod. This
allows the telescope’s tracking motors to rotate the telescope around the
celestial pole, the same way as the stars. Without the equatorial wedge,
you would notice the stars in the eyepiece would slowly rotate around
–Š‡ ‡–‡”‘ˆ–Š‡Ƥ‡Ž†‘ˆ˜‹‡™ǤŽ–Š‘—‰Š–Š‹•‰”ƒ†—ƒŽ”‘–ƒ–‹‘™‘—Ž†‰‘
unnoticed when viewing with an eyepiece, it would be very noticeable
when imaging.
Polar alignment is the process by which the telescope’s axis of rotation
(called the polar axis) is aligned (made parallel) with the Earth’s axis of
”‘–ƒ–‹‘Ǥ ‡ƒŽ‹‰‡†ǡƒ–‡Ž‡• ‘’‡™‹–Šƒ Ž‘ †”‹˜‡™‹ŽŽ–”ƒ –Š‡•–ƒ”•
ƒ•–Š‡›‘˜‡ƒ ”‘••–Š‡•›ǤŠ‡”‡•—Ž–‹•–Šƒ–‘„Œ‡ –•‘„•‡”˜‡†–Š”‘—‰Š
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The CPC hand control has a polar alignment function called “All-Star”
polar alignment that will help you polar align your telescope for increased
tracking precision and astrophotography. This feature allows you to choose
any bright alignment stars to assist in accurately aligning your telescope and
wedge with the North Celestial Pole. Before using the Polar Align feature,
›‘——•–Ƥ”•–’‡”ˆ‘”ƒ‘”–Š‘”‘—–ŠŽ‹‰‡–Ǥ
 ‡›‘—”–‡Ž‡• ‘’‡‹•ƒŽ‹‰‡†ǡ•Ž‡™–Š‡–‡Ž‡• ‘’‡–‘ƒ›„”‹‰Š–•–ƒ”
in its Named Star database list. This will be the star used for the All-Star
‘Žƒ”Ž‹‰‡–Ǥ ‘”„‡•–”‡•—Ž–•ǡ‹–‹•ƒŽ™ƒ›•‰‘‘†–‘ Š‘‘•‡ƒ’‘Žƒ”
alignment star that is high in the sky and near the Meridian. Try to avoid
stars that are close to the west/east horizon, directly overhead or too
near the celestial pole.
Press the Align button and use the Up/Down buttons on the hand
controller to select Polar Align from the list.
The Polar Align feature has two options: Align Wedge and Display Align .
Align Wedge Ȃˆ–‡”’‡”ˆ‘”‹‰ƒ‘”–Š‘”‘—–ŠŽ‹‰‡–ƒ†
slewing your telescope to any bright star in the telescope’s database,
select the “Align Wedge” option. The telescope will then re-slew to the
same star.
͙Ǥ ‡–‡”–Š‡•–ƒ”‹–Š‡Ƥ†‡”• ‘’‡ƒ†’”‡••Ǥ
2. Then accurately center the star in your eyepiece and press
ǤŠ‡–‡Ž‡• ‘’‡™‹ŽŽ–Š‡Dz•› dz‘–Š‹••–ƒ”ƒ†•Ž‡™–‘
the position that the star should be if it were accurately
polar aligned.
‘”–Š‡‘•–ƒ —”ƒ–‡ƒŽ‹‰‡–‹–‹•„‡•––‘—•‡ƒ”‡–‹ Ž‡‡›‡’‹‡ ‡ȋ•‡‡
Optional Accessories ) or a high power eyepiece to precisely center the
•–ƒ”‹–Š‡Ƥ‡Ž†‘ˆ˜‹‡™Ǥ
͛Ǥ •‡–Š‡™‡†‰‡•Žƒ–‹–—†‡ƒ†ƒœ‹—–Šƒ†Œ—•–‡–•–‘’Žƒ ‡–Š‡
star in the center of the eyepiece.
‘‘–—•‡–Š‡†‹”‡ –‹‘
„—––‘•‘–Š‡Šƒ† ‘–”‘Ž–‘’‘•‹–‹‘–Š‡•–ƒ” Ǥ ‡–Š‡•–ƒ”
‹• ‡–‡”‡†‹–Š‡‡›‡’‹‡ ‡ǡ’”‡••Ǣ–Š‡’‘Žƒ”ƒš‹••Š‘—Ž†
now be pointed towards the North Celestial Pole.
͞ǧ͛
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Updating your Star Alignment
After polar alignment, it’s a good idea to check the pointing accuracy
‘ˆ–Š‡–‡Ž‡• ‘’‡–‘•‡‡Š‘™— Š‹–ƒ›Šƒ˜‡„‡‡ƒơ‡ –‡†„›‘˜‹‰
the mount. Since the polar alignment process requires you to “sync” the
telescope on a bright star before you begin, it will be necessary to undo
the sync before re-aligning. To undo the sync:
1. Press the Align „—––‘ƒ†—•‡–Š‡Ȁ„—––‘•‘–Š‡Šƒ†
controller to select Undo Sync from the list, and press Enter . The
message Complete will display on the LCD.
To re-align your telescope:
2. Slew the telescope to one of the original alignment stars, or another
bright star if the original alignment stars are no longer in a
convenient location. Press the
Align
„—––‘ƒ†—•‡–Š‡Ȁ
buttons on the hand controller to select Alignment Stars from
the list.
3. The hand control will ask you which of the original alignment stars
›‘—™‹•Š–‘”‡’Žƒ ‡Ǥ•‡–Š‡Ȁ„—––‘•–‘•‡Ž‡ ––Š‡
desired star and press Enter .
͜Ǥ ‡ƒ‰ƒ‹ǡ ‡–‡”–Š‡•–ƒ”‹–Š‡Ƥ†‡”• ‘’‡ƒ†’”‡•• Enter .
5. Then center the star in the eyepiece and Press Align .
͞Ǥ‡’‡ƒ––Š‡’”‘ ‡••‘ƒ•‡ ‘†ƒŽ‹‰‡–•–ƒ”Ǥ
Display Align – the user can now display the polar alignment error
in the RA and DEC axes. These values show how close the mount
is pointed at the celestial pole based on how accurately the user
centered the alignment star with the hand control and with the mount
ƒ†Œ—•–‡–Ǥ‘†‹•’Žƒ›–Š‡ƒŽ‹‰‡–‡””‘”ǣ
1. Press the Align
„—––‘ƒ†—•‡–Š‡Ȁ„—––‘•‘–Š‡Šƒ†
controller to select Display Align from the list, and press Enter .