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Troubleshooting 

Unable to connect to the App :

 If you see the mention "

You are not connected"

, check 

if you are connected to the eVscope 2. Check that your WiFi is active on your device and 
that the eVscope is turned on and within reach (ideally within 5 meters) of your device. 
You can also manually connect to your eVscope 2 by selecting “eVscope2-xxxxxxx” in 
the available WiFi networks. If the problem persists, reinstall the App.

The Go to is grey or doesn’t center the object on the screen 

: This can happen if the 

object is really far from the eVscope 2 or if the object is close to the zenith. Recenter 
the object with the joystick or press the AFD on another part of the sky. If the problem 
persists, we recommend you reinstall the App.

The Enhanced Vision stopped or dropped

 : you can get one of these messages :

-

“Important  shock  detected  –  Please  check  level  and  re-align”

. An important 

shock is detected (a kick on the tripod). Re-adjust your level bubble and go through 
the focus & track procedure as explained in the Quick Start Guide.

-

“Too  close  to  zenith  –  Please  re-align  at  a  lower  altitude”.

 The eVscope 2 is 

getting near the zenith. Go through the focus & track procedure.

“Your eVscope is stopping the Enhanced Vision. Do you want to save the 

image?” 

The object disappeared behind an obstacle (tree / house).

While you observe, you might see 

“Enhanced Vision dropped”

. One of the images 

stacked by your eVscope 2 has an issue and is skipped to maintain the quality of your 
observation.

Two specifi c messages can appear :

“Enhanced  Vision  dropped.  Vibration  detected”

 : A minor shock has been 

detected (someone bumped against the eyepiece or the result of wind).

“Enhanced Vision  dropped. Too  bright”

: An image has been polluted by light 

(someone turned on his/her smartphone’s fl ashlight).

Fail to upload : 

The amount of devices allowed on a network can cause this or the MAC 

address fi ltering in place. Connect to your home WiFi network with another device to 

enable more devices or add the eVscope 2 MAC address to the list. This can also be an 
issue if you are trying to upload from a secure network with multi-factor authentication, 

like a university or a government offi  ce. It can also fail due to WiFi channel incompatibility, 

restarting your router / device WiFi connection will solve the issue.

WiFi drop :

 The WiFi can drop for diff erent reasons:

-    The distance between you and the eVscope 2
-    The wall thickness between the user and the eVscope 2
-    The auto-lock
-    Your OS that has WiFi preferences 
-    A communication error between the eVscope & the phone

There is no way to boost the WiFi signal of the eVscope 2. Try using an extender with the 
same SSID as the eVscope 2 to extend the range.

9

Summary of Contents for eVscope 2

Page 1: ...User Guide eVscope 2 The Universe Awaits ...

Page 2: ...your telescope and ob serve in good conditions to get the most out of your eVscope 2 including beautiful images How Is it organized In this user guide we will walk you through every feature and setting step by step to optimize the use of your telescope You will learn how to get the best experience possible every time you observe the sky You will also learn about Unistellar s mission as well as the...

Page 3: ...Summary User Guide ...

Page 4: ...t on 3 Connect your eVscope 2 to the Unistellar App using WiFi 4 Explore the night sky 5 Park your eVscope 2 Best practices for your observations P19 Thermalization Focus adjustment Dark frames Collimation Get the most out ofyour eVscope 2 P24 Data P28 Contribute actively to Science P30 Shareyourobservations P31 Storage and maintenance P32 Troubleshooting P33 Let s keep in touch P35 Need help Glos...

Page 5: ...User guide 5 English ...

Page 6: ...n and edu cational instrument gives access to thousands of targets while tradi tional optical telescopes only allow for a few objects to be seen clear ly Unistellar telescopes are the most portable simplest and fastest to operate whether from an in town balcony or the countryside Our telescopes provide an unparalleled user experience they are very easy to use ready in a few minutes controlled by y...

Page 7: ...WARNING User guide 7 English ...

Page 8: ...vision while observing WARNING Never charge the eVscope 2 if the temperature is under 10 Celsius It could cause irreversible damage to the eVscope 2 s battery Always charge it between 10 C and 40 C 40 F and 104 F WARNING Never let the eVscope 2 with the battery plugged in without using it for more than a month It could cause irreversible damage to the eVscope 2 s battery Always unplug the battery ...

Page 9: ...s EU USA UK JP Quick start guide User guide Accessories box with tools Tripod Tool 1 Socket wrench 8mm Tripod Tool 2 Allen Key M5 5 Tripod Tool 3 Allen Key M4 Telescope Tool 1 Torx Key T20 Telescope Tool 2 Allen Key M3 Removable cover 2 spare screws for the tripod Backpack Tube Dust cap eyepiece cap Except for Australia New Zealand Hong Kong Singapore power cable only User guide 9 English 10 ...

Page 10: ...telescope and the onboard computer The easiest way to do so is by pushing it out from the back and it will slide on the side eVscope s characteristics Aperture 114 mm 4 5 inches Computerized Yes Resolving power 1 33 arcseconds Focal Lenght 450 mm 17 7 inches Focal Ratio f 3 9 Mount Alt Azimutale Optical Design Newtonian Sensor IMX347 low read noise 1 e trademark of Sony Sensor field of view 0 75 x ...

Page 11: ...g your eVscope 2 into a power outlet A power bank can be used to charge your eVscope 2 as well we recommend a USB 5V For the most efficient charge of the battery the maximum current used by the eVscope 2 is 2 4 Amps For the charge range we recommend 2A 1Awill also work but the charging time will take longer What does the blue flashing light indicate While charging the LED located on the powerbutton ...

Page 12: ...tripod unstable Additionally ensure the legs are properly locked before transfering your eVscope 2 to the tripod Warning the tripod cannot be used for any other purpose than holding your eVscope 2 Tripod s characteristics Measurements 59cm x 13cm 23 2 inches x 5 11 inches 125cm of heights max 98cm wide open 49 2 inches x 38 5 inches Weight 2kg 4 4 lbs The LED Where is the LED located on the eVscop...

Page 13: ...ilt in foam inserts match the shape of your telescope Internal strap securely fastens the instrument during transport Removable rain shield protects against rain and humidity located underneath the backpack Padded adjustable shoulder straps hip belt help to distribute the load weight 5 small internal pockets 2 zipped 2 to hold the telescope cap and eyepiece cover Ventilated back panel 2 large exte...

Page 14: ...nd the UnistellarApp On the Google Play Store and the Apple App Store on smartphones or tablets under the name Unistellar The App enables you to wirelessly control your eVscope 2 with WiFi Minimum requirements to download our App Android 6 or iOS 12 operating system Touch screen WiFi 140Mo of available memory The App is not supported on FireOS devices If you can t download it on your smartphone ch...

Page 15: ...ovided tool in the accessories box Open the legs of the tripod and adjust the height Always setup your tripod on a solid surface Find the bubble level at the top of one of the tripod s three multi angle leg locks at the crown of the tripod Adjust the legs to put the bubble level within the black circle Check that the tripod legs are properly secured Loosen the 2 tripod screws at the crown of the t...

Page 16: ...to the crown of the tripod and fits in perfectly It should be stable not loose nor wiggly D Start the eVscope 2 by pressing the ON button for 2 seconds The LED is first purple then red You might not see the button light if you turn on your eVscope 2 in daylight because of its low intensity E Remove the cap covers on both the eVscope 2 tube and eyepiece C Tighten the screws at the crown of the tripod...

Page 17: ...e App will automatically detect your nearby eVscope 2 Select your eVscope 2 from the list of network You are connected to your eVscope 2 If the App fails to detect your eVscope 2 check section 9 Troubleshooting eVscope2 xxxxxx The eVscope 2 creates its own WiFi network it doesn t use your home internet WiFi No internet connection is required to operate your eVscope 2 Network found NO INTERNET CONN...

Page 18: ... eVscope 2 will instantly recognize objects in its field of view Choose the first recommended object in the catalogoftheAppandhittheGotobutton itwill takeyou directlyto the object Once the telescope has reached its target switch to Enhanced Vision mode to start revealing the details and colors of distant deep sky objects The longer you leave the Enhanced Vision active on an object the more details w...

Page 19: ...balance This step is very important to ensure that the mirror and the tube will not flex during use resulting in potential changes in focus and image quality Moreover much like a hot road in the sun differences in temperature can create a blur effect due to air displacement this could affect the quality of your observations How to thermalize my eVscope 2 If there is a difference in temperature between ...

Page 20: ... the brightest available to you Separate the Bahtinov mask from the cap cover Place it on top of the eVscope 2 tube and turn gently as needed to fit it onto the tube This will create a specific pattern forming an X visible in the eyepiece and on your screen Zoom in using pinch and pull on your device to clearly see the X Scan this QR code to be redirected to our video on how to focus with the Bahtin...

Page 21: ... take a dark frame Open the User My eVscope section select Take Dark Frame If successful the message New Dark Frame Created should pop up at the bottom of your smartphone screen If an error message appears try again later possibly in a darker environment there might be too much light detected on the image Noise can occur during a long exposure or with high temperature variations You may see the eff...

Page 22: ...gitation for instance after transporting it in the trunk of a car How to collimate my eVscope 2 Collimate your eVscope 2 using the two screws located at the bottom of the tube When you turn these screws it adjusts the mirror position The top screw will be used to move the star vertically and the left screw will be used to move the star horizontally For this procedure you will need 1 The torx key T...

Page 23: ... are a novice take your time and go step by step Take the torx key T20 in the toolbox Telescope Tool 1 Move the telescope with the joystick using the arrows to put the star at the edge of your screen Which edge it all depends on your cross if you see the off center cross on the right you will place the star on the right edge of the screen with the joystick if the off center cross is on the left you ...

Page 24: ...alog targets NGC Comets Thousands of small solar system bodies including main belt asteroids Jupiter Trojans and dwarf planets V 15 5 Source NED NASA IPAC Extragalactic Database ned ipac caltech edu You can point at targets not yet in the catalog by entering the desired coordinates in the Alt Az or Ra Dec button in the Explore tab of the App Autonomous Field Detection What is AFD Autonomous Field ...

Page 25: ...ages with orwithout an overlay by selecting your preference in the Settings of the User tab The overlay shows the name of the object coordinates date and time Gain What does the gain do Gain electronically increases the signal in Live View mode The lower the gain the better your images the higher the gain the brighter the image When you increase the gain you also increase the noise you will see fa...

Page 26: ... can t be seen better than with a classical telescope except for Neptune and Uranus which are very far and fainter Use the Go to button to point the eVscope 2 at the celestial object Gain dB and exposure time ms will be automatically adjusted in order to view the Moon or planets The eVscope 2 was primarily created to observe the deep sky wonders of the Universe REPEAT THIS OPERATION AS NECESSARY U...

Page 27: ... You will not be able to observe if you are under a cloudy sky The eVscope 2 is highly sensitive to wind as it creates vibration and can make the Enhanced Vision drop We recommend the following temperature range for your eVscope 2 Storage 10 C 50 F to 40 C 104 F Observation and recharge 10 C 50 F to 40 C 104 F Observation 0 C 14 F to 40 C 104 F To reduce the impact of light pollution stay away fro...

Page 28: ...data on a regular basis will free up some storage space Your eVscope 2 can upload at a speed of 6Mo s on a 2 4Ghz network and 8Mo s on a 5Ghz network If you need to upload 12Go it will take at least 30 minutes Images of your observations are saved on your smartphone You can still save pictures in the gallery with a full memory 100 data storage used The eVscope 2 will continue to operate normally b...

Page 29: ...eshooting of the user guide Once the transfer is complete reconnect your phone to the eVscope 2 and go back to the User tab in the App You should see Storage 1 used The remaining 1 is used for dark frames and for internal files necessary for the operation of the eVscope 2 We are working on making RAW images accessible for post processing Subscribe to our newsletter to stay informed unistellaroptics...

Page 30: ...r scientists provide different targets to observe with your eVscope 2 every month To protect our planet learn more here unistellaroptics com citizen science planetary defense Asteroid Occultation Detecting an asteroid s occultation entails observing an asteroid passing between a bright star and your position on Earth The blinking of the star recorded by the eVscope 2 provides valuable data so astro...

Page 31: ...ientists detected the first exoplanet since then thousands of planets have been detected orbiting around stars we also came to realize that each star planet system does not necessarily have the same configuration as our solar system Moreover observing exoplanets will perhaps allow us one day to discover another form of life or a planet similar to Earth The easiest technique to observe them is the tr...

Page 32: ...or highly humid environment Maintenance of the battery The battery is not meant to be removed by the user To maximize battery life you should avoid high discharge while using your eVscope 2 Avoid using your eVscope 2 at low temperature 0 C or high temperature 40 C 104 F as this can affect the Lithium ion battery Avery cold environment can increase the consumption ofyour battery It will result in a ...

Page 33: ...Do you want to save the image The object disappeared behind an obstacle tree house While you observe you might see Enhanced Vision dropped One of the images stacked by your eVscope 2 has an issue and is skipped to maintain the quality of your observation Two specific messages can appear Enhanced Vision dropped Vibration detected A minor shock has been detected someone bumped against the eyepiece or...

Page 34: ... pattern the star symbol manually adjust the exposure time and gain using the Bahtinov mask Can t take a dark frame Try again in darker surroundings and make sure your telescope was left outside for 15 minutes Don t forget to use the cap cover EXTERNAL RESOURCES Sky map stellarium web org Light pollution map lightpollutionmap info 34 User guide English ...

Page 35: ...sh Let s keep in touch Need help Website unistellar com scan this QR code Contact support support unistellaroptics com FAQ help unistellar com unistellar unistellar unistellarscope unistellarscope 10 User guide 35 English ...

Page 36: ...nizable shape Diffraction Light diffraction is a physical phenomenon by which ray lights from a point source are deflected at the edge of a non transparent object Dwarf planets Astronomical astre orbiting around a sun which is not a moon It has suf ficient mass so that its internal pressure outweighs the cohesive forces of the solid body and maintains it in hydrostatic equilibrium in an almost spheric...

Page 37: ...t signing the end of a star A supernova can result from two very different types of events the thermonuclear explosion of a white dwarf fol lowing accretion of material from a neighboring star or the gravitational collapse of a massive star a so called core collapse supernova Thermal balance A system is said to be in thermal equilibrium with itself if the tempe rature inside the system is spatially...

Page 38: ...ted filter Your eVscope 2 can be definitively damaged also after a short exposure There is also an important fire hazard Furthermore do not expose your eVscope 2 at temperatures above 40 C or below 10 C the performances can be compromised by extreme temperatures Your eVscope 2 is fragile do not let it drop or fall In case of shocks it can be perma nently damaged Specifications Model eVscope 2 Mirror s...

Page 39: ...f 20 cm or more should be maintained between this device and persons during device operation To ensure compliance operations at closer than this distance is not recommended The antenna used for this transmitter must not be co located in conjunction with any other antenna or transmitter The eVscope 2 is recommended to set up on the tripod along with the telescope only It can t be set up on any othe...

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