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Observing Tips: 

Star hopping

Star hopping is a technique used by amateur astronomers to navigate the night sky. By using easily 
recognizable constellations and asterisms as a guide, an observer can locate stars and other objects.

For example, Polaris, which is commonly referred to as The North Star, can be located quickly using 
star hopping. First, find the Big Dipper asterism in the Ursa Major constellation. The popular pattern is 
defined by seven stars, and the two stars on the front edge of the Big Dipper’s “bowl” are Merak and 
Dubhe. Next, draw an imaginary line from the bottom star (Merak) on this front edge through the top 
star (Dubhe) on the front edge. Follow the line to the first bright star you see. That should be Polaris. 
Finally, to verify your finding, locate the Little Dipper asterism. Polaris is the anchor star at the end of 
the Little Dipper’s “handle.” 

Image credit: Howard Eskildsen

Note: Images are for illustration purposes only. Quality of your image may very depending upon atmospheric conditions and location.

Possible Objects for Observation: 

What you can observe at any one time in your telescope 
depends on several factors beyond aperture and magnification. 
These factors include location, date, time and sky conditions. 
The following are all objects that can be seen with the unaided 
eye and/or binoculars. Your telescope can enhance views of any 
of these objects if the observing conditions are right.

The Moon:
Diameter:

 3,476 km

Distance:

 Approximately 384,401 km

The Moon is the Earth’s only natural satellite, and it is the 
second brightest object in the sky (after the Sun). Although it 
is our closest neighbor, a lot of people have never really taken 
a good long like at the Moon. With your telescope, you should 
be able to see several interesting lunar features. These include 
lunar maria, which appear as vast plains, and some of the larger 
craters. The best views will be found along the terminator, which 
is the edge where the visible and shadowed portions of the 
Moon meet.

BIG DIPPER

LITTLE DIPPER

POLAR STAR

CASSIOPEIA

Caph

Zeta

Beta

Kochab

Pherkad

Gamma

Eta

Epsilon

Delta

Alpha

Shedar

Cih

Ksora

Segin

Alkaid

Alcor

Mizar

Alioth

Megrez

Phecda

Merak

Dubhe

Note: The positioning of the Big Dipper in relation to the Little Dipper does not change, but the 

orientation of both in the night sky will rotate throughout the year due to the motion of the Earth.

Summary of Contents for STAR50APP

Page 1: ... seeinstructions WARNING Thelenscontainsleadthatmaybeharmful Washhandsaftertouching WARNING Thisproductcanexposeyoutochemicalsincludinglead whichisknowntotheStateofCaliforniatocausecancer andbirthdefectsorotherreproductiveharm Formoreinformationgotowww P65Warnings ca gov WARNING 88 34550 EN 10 INCLUDED X1 CR2032 3V STAR50APP 50MM TELESCOPE W PANHANDLE MOUNT INSTRUCTION MANUAL ...

Page 2: ...LIKE PLASTIC BAGS AND RUBBER BANDS AWAY FROM CHILDREN AS THEY POSE A RISK OF SUFFOCATION DISPOSE OF PACKAGING MATERIALS AS LEGALLY REQUIRED CONSULT THE LOCAL AUTHORITY ON THE MATTER IF NECESSARY AND RECYCLE MATERIALS WHEN POSSIBLE THE WEEE SYMBOL IF PRESENT INDICATES THAT THIS ITEM CONTAINS ELECTRICAL OR ELECTRONIC COMPONENTS WHICH MUST BE COLLECTED AND DISPOSED OF SEPARATELY NEVER DISPOSE OF ELEC...

Page 3: ... 8 5 6 7 10 Parts Overview 1 50 mm Objective Lens 2 Pan Tilt Mount 3 Tripod with accessory tray 4 Optical Tube Assembly OTA with Dew Shield 5 Focus Wheel 6 Diagonal 7 1 25 Eyepieces 12 5 mm and 20 mm 8 Smartphone Mount w Bluetooth 9 Panhandle 10 Focuser Phone not included ...

Page 4: ...the Earth means objects will move out of your eyepiece fairly quickly Once you have found and focused on your desired target you can track it as it journeys across the night sky using the panhandle To get a closer look at an object take out the 20mm eyepiece and replace it with the 12 5mm eyepiece This will increase the magnification from 30x to 48x Note Terrestrial objects will appear reversed du...

Page 5: ...lick Automatic Search to match and enter the AR star search module To access the language selection function Go to the home menu screen and click the globe icon in the upper left corner to enter the language switch function To activate the application After installing open the application For the ARTelescope 3L to function properly you will need to allow it to access the camera location and Blueto...

Page 6: ...s the encyclopedia for solar system objects Go to the encyclopedia screen click the solar system icon to access information about the solar system objects Tap on an object for information that includes pictures text and audio To access the 3D assembly animation Go to the home menu screen click the upper right corner to enter the 3D assembly animation of the telescope and click the animation play b...

Page 7: ...ky You can take a photo of the constellation in AR mode by allowing the application to access your device s camera Notes The application needs to keep the device network in a normal state during the activation process Permission to open the camera album and location of the device will pop up when the App is launched for the first time Please tap Allow to confirm approval Gyroscope standard of the ...

Page 8: ... at any one time in your telescope depends on several factors beyond aperture and magnification These factors include location date time and sky conditions The following are all objects that can be seen with the unaided eye and or binoculars Your telescope can enhance views of any of these objects if the observing conditions are right The Moon Diameter 3 476 km Distance Approximately 384 401 km Th...

Page 9: ...gendary and beautiful cluster Image credit NASA JPL Caltech UCLA Dumbbell Nebula M27 Right ascension 19 59 6 hours minutes Declination 22 43 degrees minutes Distance Approximately 1 360 light years The Dumbbell Nebula was the first planetary nebula ever discovered It is one of the most popular sights in the Vulpecula constellation Easy to find with binoculars and amazing in a telescope the shape o...

Page 10: ...ch sits at a 45 angle in relation to the eyepiece Light bounces off of this secondary mirror and out through the eyepiece A reflector telescope is designed for astronomical use Terrestrial objects may appear inverted sideways or at an angle depending on how your tube is oriented due to optical design This rotation is perfectly normal on all Newtonian reflectors and will not affect astronomical vie...

Page 11: ...ertical axis mirror image To get an image without this rotation you will need to use a special diagonal with an erect image prism Eyepiece An eyepiece is an optical accessory comprised of several lens elements It determines the magnification of a particular observing setup Primary Mirror The primary mirror is the principle light gathering surface of a reflector telescope Secondary Mirror A seconda...

Page 12: ...lear aperture has a focal ratio of f 10 Focal length Telescope The focal length is the distance in millimeters between the objective lens or primary mirror and the point at which entering light rays converge otherwise known as the focal point The focal lengths of the telescope tube and the eyepiece are used to determine magnification Focal length Eyepiece The focal length is the distance in millim...

Page 13: ...ns elements two of which are paired together in an achromatic doublet design to minimize chromatic aberrations They typically produce an apparent field of view around 45 Plössl Eyepieces A Plossl eyepiece uses two doublets a pairing of lens for a total of four lens elements This eyepiece design delivers sharp views and an apparent field of view of approximately 50 which works well for both planeta...

Page 14: ... to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help FCC RF Radiation Exposure Statement This equipment...

Page 15: ...15 Notes ...

Page 16: ...plore Scientific LLC 1010 S 48th Street Springdale AR 72762 explorescientificusa com 866 252 3811 All rights reserved Made in China CONTENTS AND COLORS MAY VARY CONFORMS TO THE SAFETY REQUIREMENTS OF ASTM F963 V042020 ...

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