Celestron StarSense Explorer DOB User manual

Quick Setup Guide
#22472 STARSENSE EXPLORER 12” DOBSONIAN
ENGLISH

2 | ENGLISH
What’s in the Box
A1
E
F
K1 K2
L1 L2
M
J1 J2
H1 H2 H3 H4 H5
G1 G2 G3
A2 B C D
Left side panel
Feet (x3)
Base
handle
Altitude bearing
cylinders (x4)
Rubber bumper
Screwdriver
INCLUDED TOOLS
ALTITUDE BEARING ASSEMBLY
HANDLE ASSEMBLY
FEET ASSEMBLY
Box 1 - Dobsonian Base
AZIMUTH PIVOT BOLT ASSEMBLY
EYEPIECE RACK ASSEMBLY
Crescent
wrenches (x2)
Hey keys (x2)
Bearing
screws (x4)
Eyepiece rack Rack
screws (x2)
Bolt Nut Steel
washers
(x2)
Hollow
plastic
cylinder
Teflon
washer
Feet
screws (x3)
Handle
screws (x2)
Feet screws
covers (x3)
Right side panel Front panel Top Plate Bottom Plate Base assembly
screws (x27)
Side supports
(x2)

ENGLISH | 3
P
OQ
N2
R1
U
V W
N1
S
T
Box 2 - Optical Tube Assembly
Box 3 - Primary Mirror
Optical tube assembly with dust cover
Altitude
tensioning knob
32mm Omni
Plössl eyepiece
2” focuser
extension tube
2”-to-1.25” eyepiece
adapter with 1.25”
cover cap Collimation cap with
2mm hex key
Cosmetic knob
Primary mirror in mirror cell
BACKFRONT
Mirror cell screws (x6)
StarSense dock StarPointerTM
red dot finderscope

4 | ENGLISH
1. Connect the side supports (E) to the left side panel (A1) and
right side panel (A2) using 8 of the base assembly screws (F).
The supports go on the on the same side of the panels as the
Celestron logos.
4. Connect the assembly to the top plate (C) using 11 of the base
assembly screws (F). Orient the top plate so the side with the
logo faces upward.
F
C
4
A1
E
F
A2
1
3. Connect the side panels (A1 & A2) to the front panel (B) using
8 of the base assembly screws (F). Make sure the Celestron
logos on the side panels face outward and the rubber bumper
on the front panel faces inward.
F
F
B
A1
A2
3
2. Attach the rubber bumper (M) to the interior surface of the front
panel (B). There is a small spot on the front panel that indicates
where to place the rubber bumper. Remove the adhesive backing
from the bumper and press the bumper firmly onto the spot.
M
B
2
SPOT MARK
Assembly

ENGLISH | 5
6. Connect the assembly to the bottom plate (D). Place one of the
steel washers (H3) and the plastic cylinder (H4) onto the bolt
(H1). Then, insert the bolt through the central hole in the bottom
plate. Next, place the Teflon washer (H5) over the plastic
cylinder (H4) now protruding from the bottom plate. Take the
assembled base and lower it onto the bottom plate so that the
plastic cylinder goes through the central hole in the top plate.
Now, place the remaining steel washer (H3) on the end of the
bolt protruding from the top plate. Thread the nut (H2) onto the
bolt. Go to Step 7 for instructions to tighten the bolt.
8. Install the base handle (J1) onto the outside of the front panel
(B) using the 2 handle screws (J2).
7. Use the two crescent wrenches to tighten the nut onto the
bolt. Hold the head of the bolt stationary with one crescent
wrench while using the other crescent wrench to tighten the nut.
DO NOT OVERTIGHTEN THE NUT! With some force, you
should still be able to move the steel washer underneath the
nut with your fingers. If the washer cannot be moved with your
fingers, slightly loosen the nut.
J1
B
J2
87
5. Attach the 3 feet (G1) to the bottom plate (D) using the 3 feet
screws (G2). Thread the screws firmly into the predrilled pilot
holes. Once installed, press the feet screw covers (G3) onto the
ends of the feet.
D
G1
G2
G3
5H2
H3
H4
D
H5
H3
H1
6
NUT
STEEL WASHER
TEFLON WASHER
PLASTIC CYLINDER
STEEL WASHER
BO LT

6 | ENGLISH
O
9. Install the 2 rack screws (K2) onto the front panel, then install
the eyepiece rack (K1) by inserting the head of the rack screw
through the keyhole in the eyepiece rack, then push the rack
downwards.
NOTE: If you want to remove the rack after it has been installed,
simply pull it upward.
10. Install the altitude bearing cylinders (L1) onto the left and right
side panels (A1 & A2) with the altitude bearing screws (L2).
The bearings go on the interior surfaces of the side panels. The
flat end of the bearing—with no bevel on it—should be flush to
the surface of the panel.
11. Install the primary mirror cell (V) into the optical tube assembly
(O). First remove the plastic wrap and tissue paper that protect
the primary mirror during shipment.
12. Stand the optical tube assembly (O) up vertically so the front
end is on the ground and the exposed edge of the bottom of
the tube faces upward.
K1
K21
9
L1
L2
A1
A2
10
V
11 12
BEVEL
FLAT

ENGLISH | 7
16. Install the altitude tensioning knob (N1) through the slot in the
left side panel (A1) and int o the threaded insert in the center
of the side hub on the optical tube assembly. The tensioining
knob (N1) is the one with the stepped bushing on its shaft.
N1 A1
16
15. Place the optical tube assembly (O) onto the assembled
Dobsonian base. The side hubs on the tube should sit on the
altitude bearing cylinders on the base.
13. Turn the primary mirror cell upside-down (V) (i.e., so the primary
mirror faces downward), align the threaded holes in the mirror
cell’s perimeter with the through holes in the end of the tube,
and place the mirror cell onto the tube.
14. Next, install the mirror cell screws (W) through the tube and
into the cell. Do not firmly tighten the screws yet because you
may need to make slight adjustments to the cell’s position to
precisely align the holes. Once all the screws are threaded into
the mirror cell, firmly tighten them in place.
O
13 14
O
15
V
W

8 | ENGLISH
17. Install the cosmetic knob (N2) through the slot in the right side
panel (A2) and into the threaded insert in the center of the side
hub on the optical tube assembly. The cosmetic knob (N2) is
the one with the straight bushing on its shaft.
18. Install the StarSense dock (P). First, loosen the 2 thumbscrews
on the StarSense base on the tube. Insert the dock into the
base, and then retighten the thumbscrews.
N2
A2
P
1817
19. Install the StarPointer red dot finderscope (Q) onto the
optical tube assembly. First, loosen the thumbscrew on the
finderscope holder. Insert the base of the StarPointer into the
holder and tighten the thumbscrew.
20. Loosen the thumbscrews on the end of the focuser and
insert the 2” extension tube (S) into the focuser. Retighten
the thumbscrews.
Q
S
2019
THUMB SCREWS

ENGLISH | 9
21. Loosen the thumbscrews on the 2” extension tube (S)
now installed in the focuser and insert the 2”-to-1.25”
eyepiece adapter (T). Retighten the thumbscrews on the
2” extension tube. The 2”-to-1.25” eyepiece adapter may
already be installed in the 2” extension tube.
22. Loosen the thumbscrews on the 2”-to-1.25” eyepiece
adapter (T) now installed in the focuser, place the 32mm
Omni Plössl eyepiece (R1) into the adapter, and retighten
the thumbscrews on the adapter.
S
T
T
R1
2221
CORRECT
Collimating the Optics
Collimation is the process of aligning the telescope’s optics. Since the primary mirror does not come installed in the optical tube, we recommend
collimating the optics before your first night out. It is easiest to collimate a telescope during the day with the telescope pointed toward a blank
wall. This will provide a high-contrast view, making it easier to determine which adjustments to make. Use the supplied hex key(s) to make
adjustments.
1. To check alignment of the mirrors, first remove any eyepieces.
Make sure the 2”-to-1.25” adapter is installed in the focuser.
Then, place the collimation cap (U) in the focuser.
2. Look through the small hole in the center of the collimation cap. If your
view matches the first image, your optics are collimated properly and
you are finished. If your view resembles the second image, you’ll need
to adjust the mirrors’ alignment. Continue to step 3.
1 2
U
INCORRECT

10 | ENGLISH
Edge of
secondary
mirror
Reflection of
primary mirror
3. While making adjustments, position the tube horizontally. This
prevents anything from falling onto the primary mirror.
5. First, adjust the secondary mirror at the front of the telescope
using the 2mm hex key. Use the three socket-head setscrews
in the secondary mirror holder to adjust the tilt of the secondary
mirror.
a. Adjust one setscrew at a time. Make only small adjustments.
b. If one setscrew becomes too tight or too loose, make
adjustments to the other setscrews to compensate.
When you are finished, make sure all three of the setscrews
are snug.
4. You should be able to see the reflection of the entire primary
mirror centered within the secondary mirror as shown in Step
2. If you can’t, as shown above, the secondary mirror will need
adjustment.
34
SECONDARY
MIRROR
PRIMARY
MIRROR
5
2mm Hex Key
7. You won’t need any tools to tilt the primary mirror. Instead,
simply adjust the thumbscrews. The three smaller thumbscrews
are locking thumbscrews, while the larger three collimation
thumbscrews adjust the tilt. Start by loosening all three of the
locking thumbscrews.
7
Edge of
secondary
mirror
Reflection of
primary mirror
Reflection of
secondary mirror
6. Look through the collimation cap again to verify that the primary
mirror is centered in the secondary mirror as shown above. If
it is, the secondary mirror is collimated. Next, adjust the tilt of
the primary mirror until the reflection of the secondary mirror is
centered within the reflection of the primary mirror.
6
8. Adjust the collimation thumbscrews one at a time. Each
collimation thumbscrew is spring-loaded, so you can rotate it
clockwise or counterclockwise.
8
COLLIMATION
THUMBSCREW
LOCKING
THUMBSCREW

ENGLISH | 11
10
9. Continue adjusting the collimation thumbscrews until the
reflection of the secondary mirror is centered within the
reflection of the primary mirror as shown above. Re-tighten
the three locking thumbscrews until snug. When you are
finished, the view through the collimation cap should look
as shown.
9
GOOD COLLIMATIONNEEDS ADJUSTMENT
1. Before you take your telescope outside, download the
StarSense Explorer by SkySafariTM app to your mobile device.
Search for “Celestron StarSense Explorer” in the Apple App
Store or Google Play. The app is large, so we recommend
downloading it while connected to Wi-Fi.
2. Once you have downloaded the app, locate the orange
postcard in your telescope box. Launch the app. When
prompted, enter the activation code on the postcard to activate
the app. Your code will unlock up to 5 devices.
Download the app from the
before your first observing session
.
or
When prompted, enter the unique unlock code below to
enable telescope control on your device.
1. The StarSense Dobsonian telescope moves freely in altitude
(up-and-down) and azimuth (left-to-right). Simply move the
tube by pushing it in the desired direction. You can use the
knob handle at the front of the telescope for a hand grip.
2. If the altitude motion moves too freely, or the telescope moves
up or down with no force being applied, tighten the altitude
tensioning knob. Conversely, if it takes much force to move the
telescope upwards or downwards, loosen the knob.
Moving the Telescope
Attaching the Smartphone
Activating the App
10. Your telescope’s optics are now collimated and ready for use.
You can also confirm a telescope’s collimation at night by
pointing the telescope at a bright star at high magnification.
Center the star in the field of view and slightly defocus the
star—it should appear like a circle with a hole in the middle.
(The “hole” is the shadow from the secondary mirror.) If the
hole is not centered within the circle, you’ll need to make
additional adjustments to mirrors’ alignment.
1. Remove the large cap covering the mirror on the front of
the StarSense dock.
2. Pull open the spring-loaded slider on the top of the phone
dock and set the phone into the holder so it is flush with
the bottom lip of the phone holder. Slowly release the
slider to secure the phone in place.

12 | ENGLISH
2. CENTER THE TARGET IN THE EYEPIECE
Look through the telescope using the 32mm
eyepiece. Move the telescope until the object you
chose lies in the center of the view. If the image is
blurry, gently turn the focus knobs until it comes
into sharp focus.
NOTE: The image in your telescope may appear
inverted. This is perfectly normal in an
astronomical telescope.
The StarPointer red dot finderscope is one of
the most important parts of your telescope.
Although the StarSense Explorer app will
locate and center objects for you, having the
StarPointer properly aligned will help you align
the app to the telescope. The first time you
assemble your telescope, you need to align
the finder to the telescope’s main optics. It’s
best to do this during the day.*
1. CHOOSE A TARGET
Take the telescope outside during the day and
find an easily recognizable object, such as a
streetlight, car license plate or sign. The object
should be as far away as possible, but at least a
quarter mile away.
*SOLAR WARNING! Never attempt to
view the Sun through any telescope without
a proper solar filter!
4. ADJUST THE FINDERSCOPE
Without moving the telescope, use the two
adjustment knobs to move the red dot until it
appears over the same object you are observing
in the telescope’s 32mm eyepiece.
5. YOUR FINDERSCOPE IS NOW ALIGNED!
It should not require realignment unless it is
bumped or dropped. Now, when you look through
the StarPointer, the red dot will indicate where the
telescope is pointing. Don’t forget to turn off the
red dot when you are finished to conserve battery.
3. LOOK THROUGH FINDERSCOPE
Pull the battery protection tab out of the StarPointer
and turn it on to maximum brightness using the on/
off knob. Look through the StarPointer and locate
the red dot.
32MM EYEPIECE
FOCUS KNOBS
1
3 5
2
ON/OFF KNOB
4
WARNING: KEEP BATTERIES OUT OF REACH OF CHILDREN.
• Examine devices and make sure the battery compartment is correctly
secured, e.g., that the screw or other mechanical fastener is tightened.
• Do not use if compartment is not secure.
• Dispose of used button batteries immediately and safely. Flat batteries
can still be dangerous.
• Tell others about the risk associated with button batteries and how to
keep their children safe.
SAFETY INSTRUCTIONS
•There is a risk of explosion if the battery is replaced with an incorrect type.
• The included battery is not rechargeable.
• Only use the battery as originally intended to avoid a short circuit.
Connecting the conductive material directly to the battery’s positive
and negative sides will cause a short circuit.
• Do not use a damaged battery.
• Do not store the battery in an extremely cold or hot environment. Doing
so can reduce battery life.
• When replacing the battery, refer to the instruction manual and ensure
the positive and negative sides are oriented correctly.
• Do not put the battery in fire.
• Dispose of the battery according to local regulations.
Congratulations! Your telescope is now set up
and you are ready to explore the cosmos. Take the
telescope outside, insert your 32mm eyepiece, remove the lens cap, insert your
smartphone into the holder, and launch the StarSense Explorer app. The tutorial
in the app will walk you through the steps to find your first astronomical target.
Aligning the
StarPointer
NEED ASSISTANCE? Contact Celestron Technical Support
celestron.com/pages/technical-support
Product design and specifications are subject to change without prior
notification. This product is designed and intended for use by those 14
years of age and older
©2023 Celestron. Celestron and Symbol are trademarks of Celestron,
LLC. All rights reserved. Celestron.com • 2835 Columbia Street, Torrance,
CA 90503 USA
Made in China | 03-23
celestron.com/pages/warranty
For more information on this product,
please visit the respective product page on celestron.com
SOLAR WARNING:
Never attempt to view the Sun through any telescope without a proper solar filter.

FRANÇAIS | 13
Guide de configuration rapide
#22472 STARSENSE EXPLORER 12” DOBSONIAN
FRANÇAIS

14 | FRANÇAIS
Contenu de la boîte
A1
E
F
K1 K2
L1 L2
M
J1 J2
H1 H2 H3 H4 H5
G1 G2 G3
A2 B C D
Panneau latéral
gauche
Pieds (x3)
Poignée
de la base
Palier d’altitude
cylindres (x4)
Amortisseurs en
caoutchouc
Tournevis
OUTILS INCLUS
COMPOSANTS DE L’ORIENTATION
EN ALTITUDE
COMPOSANTS DE LA POIGNÉE
COMPOSANTS DES PIEDS
Boîte 1 – Base dobsonienne
COMPOSANTS DE L’AXE DU PIVOT D’AZIMUT
COMPOSANTS DU PORTE-OCULAIRE
Clés
anglaises (x2)
Clés
hexagonales (x2)
Vis de
palier (x4)
Support de
l’oculaire
Support
Vis (x2)
Boulon Écrou Rondelles
d’acier
(x2)
Cylindre
de plastique
creux
Rondelle
de téflon
Vis de pieds
(x3)
Poignée
Vis (x2)
Caches des
vis des pieds
(x3)
Panneau latéral
droit
Panneau
avant
Plaque
supérieure
Plaque
inférieure
Assemblage
de la base Vis
(x27)
Supports
latéraux
(x2)

FRANÇAIS | 15
P
OQ
N2
R1
U
V W
N1
S
T
Boîte 2 – Composants du tube optique
BOÎTE 3 - Miroir primaire
Composants du tube optique
avec cache-poussière
Bouton de tension
d’altitude
Omni 32mm
Oculaire Plössl
Oculaire de 2”
Tube de rallonge
Oculaire de 2” à 1,25”
Adaptateur avec cache
de 1,25” Capuchon de
collimation avec clé
Allen de 2 mm
Cache décoratif
Miroir primaire dans la cellule de miroir
ARRIÈREAVANT
Vis de la cellule de miroir (x6)
Dock StarSense Lunette de
recherche
chercheur à point
rouge

16 | FRANÇAIS
1. Connectez les supports latéraux (E) au panneau latéral gauche
(A1) et le panneau latéral droit (A2) avec 8vis d’assemblage
de la base (F). Les supports s’installent du même côté des
panneaux que les logos Celestron.
4. Connectez l’assemblage sur la plaque supérieure (C) avec
11 des vis d’assemblage de la base (F). Orientez la plaque
supérieure de manière que le logo soit orienté vers le haut.
F
C
4
A1
E
F
A2
1
3. Connectez les panneaux latéraux (A1 & A2) au panneau avant
(B) avec 8des vis d’assemblage de la base (F). Assurez-vous
que les logos Celestron sur les panneaux latéraux sont orientés
vers l’extérieur et que le tampon d’arrêt de caoutchouc est
orienté vers l’intérieur.
F
F
B
A1
A2
3
2. Fixez le tampon d’arrêt de caoutchouc (M) sur la surface interne
du panneau avant (B). Une petite marque sur le panneau avant
indique où positionner le tampon d’arrêt de caoutchouc. Retirez
le film adhésif du tampon d’arrêt de caoutchouc et pressez
dessus fermement pour le coller.
M
B
2
MARQUE D’EMPLACEMENT
Assemblage

FRANÇAIS | 17
6. Connectez l'ensemble à la plaque inférieure (D). Placez une
des rondelles en acier (H3) et le cylindre en plastique (H4) sur
le boulon (H1). Ensuite, insérez le boulon dans le trou central
de la plaque inférieure. Puis, placez la rondelle en Téflon (H5)
sur le cylindre en plastique (H4) qui dépasse maintenant de la
plaque inférieure. Abaissez la plaque assemblée sur la plaque
inférieure de sorte que le cylindre en plastique passe par le trou
central de la plaque supérieure. Placez ensuite la rondelle en
acier restante (H3) sur l'extrémité du boulon dépassant de la
plaque supérieure. Vissez l'écrou (H2) sur le boulon. Passez à
l'étape 7 pour trouver des instructions sur comment serrer le
boulon.
8. Installez la poignée de base (J1) sur l'extérieur du panneau
avant (B) à l'aide des 2 vis de poignée (J2).
7. Utilisez les deux clés à molette pour serrer l'écrou sur le
boulon. Maintenez la tête du boulon immobile avec l’une
des clés à molette en utilisant l'autre clé pour serrer l'écrou.
NE PAS SERRER EXCESSIVEMENT L'ÉCROU! En appliquant
suffisamment de force, vous devriez toujours pouvoir déplacer la
rondelle en acier sous l'écrou avec vos doigts. Si la rondelle ne peut
pas être déplacée des doigts, desserrez légèrement l'écrou.
J1
B
J2
87
5. Fixez les 3 pieds (G1) à la plaque inférieure (D) à l'aide des vis
des 3 pieds (G2). Vissez fermement les vis dans les trou-guides
pré-percés. Une fois installés, enfoncez les cache-vis des pieds
(G3) sur les extrémités des pieds.
D
G1
G2
G3
5H2
H3
H4
D
H5
H3
H1
6
ÉCROU
RONDELLE D’ACIER
RONDELLE DE TÉFLON
CYLINDRE DE PLASTIQUE
RONDELLE D’ACIER
BOULON

18 | FRANÇAIS
O
9. Installez les 2 vis du support (K2) sur le panneau avant, puis
installez le support d'oculaires (K1) en insérant la tête de la vis
du support dans le trou du support d'oculaire, puis poussez-le
vers le bas.
REMARQUE: Si vous souhaitez retirer le support après son
installation, tirez-le simplement vers le haut.
10. Installez les cylindres d'altitude (L1) sur les panneaux latéraux
gauche et droit (A1 & A2) avec les vis d’altitude (L2). Les
roulements se positionnent sur les surfaces intérieures des
panneaux latéraux. L'extrémité plate du roulement, sans biseau,
doit être au ras de la surface du panneau.
11. Installez la cellule du miroir primaire (V) dans l'assemblage du
tube optique (O). Retirez d'abord le film plastique et le papier
de soie qui protègent le miroir primaire pendant le transport.
12. Tenez l'assemblage du tube optique (O) à la verticale de sorte
que l'extrémité avant soit sur le sol et que le bord exposé du
bas du tube soit orienté vers le haut.
K1
K21
9
L1
L2
A1
A2
10
V
11 12
BISEAU
PLAT

FRANÇAIS | 19
16. Installez la molette de tension d'altitude (N1) dans la fente du
panneau latéral gauche (A1) et dans l'insert fileté au centre
du moyeu latéral sur l'ensemble du tube optique. La molette
de tension (N1) est celle qui comporte la douille étagée sur
son axe.
N1 A1
16
15. Placez l'assemblage du tube optique (O) sur la base Dobsonian
assemblée. Les moyeux latéraux sur le tube doivent reposer sur
les cylindres de roulement d'altitude sur la base.
13. Retournez la cellule du miroir primaire (V) (c'est-à-dire que le
miroir primaire est orienté vers le bas), alignez les trous filetés
du pourtour de la cellule du miroir avec les trous positionnés
à l'extrémité du tube et placez la cellule du miroir sur le tube .
14. Ensuite, insérez les vis de la cellule miroir (W) à travers le
tube et dans la cellule. Ne serrez pas encore fermement les vis
car vous devrez peut-être apporter de légers ajustements à la
position de la cellule pour aligner précisément les trous. Une
fois que toutes les vis sont vissées dans la cellule du miroir,
serrez-les fermement en place.
O
13 14
O
15
V
W

20 | FRANÇAIS
17. Installez la molette décorative (N2) dans la fente du panneau
latéral gauche (A2) et dans l'insert fileté au centre du moyeu
latéral sur l'ensemble du tube optique. La molette décorative
(N2) est celle qui comporte la douille droite sur son axe.
18. Installez la station d'accueil StarSense (P). Pour commencer,
desserrez les 2 vis à main sur la base StarSense sur le tube.
Insérez la station d'accueil dans la base, puis resserrez les vis
à main.
N2
A2
P
1817
19. Installez le chercheur à point rouge StarPointer (Q) sur
l’ensemble du tube optique. Pour commencer, desserrez la
vis moletée sur le support du chercheur. Insérez la base de
StarPointer dans le support et serrez la vis de fixation.
20. Desserrez les vis à main à l'extrémité du porte-oculaire et
insérez le tube d'extension de 2 pouces (S) dans le porte-
oculaire. Resserrez les vis à main.
Q
S
2019
VIS À MAIN