BRESSER 90-1250 Space Explorer MC Automatic Telescope Instructions

BRESSER 90-1250 Space Explorer MC Automatic Telescope

General Information

About this Instruction Manual
Please read the safety instructions in this manual carefully. To avoid damage to the unit and the risk of injury, only use this product as described in the manual. Keep the instruction manual handy so that you can easily look up information on all the functions.

CAREFUL
You will find this symbol before every section of text that deals with the risk of minor to severe injuries resulting from improper use.
ATTENTION
You will find this symbol in front of every section of text which deals with the risk of damage to property or the environment.
Intended Use
This product is intended only for private use. It was developed for the magnified display of things in nature.

General Warning

• RISK OF BLINDNESS
  Never use this device to look directly at the sun or in the direct proximity of the sun. Doing so may result in a risk of blindness.

• CHOKING HAZARD
  Children should only use the device under adult supervision. Keep packaging material, like plastic bags and rubber bands, out of the reach of children, as they pose a choking hazard.

• FIRE RISK
  Do not place the device, particularly the lenses, in direct sunlight. The concentration of light could cause a fire.

• RISK OF ELECTRIC SHOCK
  This device contains electronic components which operate via a power source (power supply and/or batteries). Children should only use the device under adult supervision. Only use the device as described in the manual; otherwise, you run the risk of an electric shock.

• RISK OF CHEMICAL BURN
  Keep batteries out of the reach of children! Make sure you insert the batteries correctly. Empty or damaged batteries could cause burns if they come into contact with the skin. If necessary, wear adequate gloves for protection.

• RISK OF FIRE/EXPLOSION
  Do not expose the device to high temperatures. Use only the recommended batteries. Do not short-circuit the device or batteries, or throw them into fire. Excessive heat or improper handling could trigger short-circuit, a fire, or an explosion.

• ATTENTION
  Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will contact the Service Centre and can send the device in to be repaired, if necessary.

Privacy Protection
This device is intended only for private use. Please heed the privacy of other people. Do not use the device to look into apartments, for example.
Accessories may vary depending on the model.

Parts overview

1. Telescope tube
2. Tube opening
3. Eyepiece connection
4. Focus wheel
5. Sandbox
6. Eyepiece holder
7. Sandbox tray
8. Azimuthal lock
9. Tripod
10. LED viewfinder (only with Art. No. 90-62100)
11. Battery compartment
12. Locking screw
13. Accessory tray
14. Altitude locking knob
15. Dust cover
16. Eyepieces
17. Moon filter
18. Compass
19. Star map

Sandbox

1. Red light source
2. Sandbox display
3. Plus/minus key
4. Illumination
5. Centre key
6. Arrow keys
7. Number pad
8. Mini-USB port
9. RJ-45 port’
10. RJ-22 port’

NOTE:
The ports of the sandbox (8, 9, and 10) are prepared for future developments but are not active at the moment. Currently, there are no additional accessories (e.g. serial cable etc) available. Information about new developments for this product can be found on our website under www.bresser.de/download/auto. matic_telescopes
Software Download: www.bresser.de/download/Stellarium.

Construction

1. General/Location
   Before you begin assembly, choose a suitable location for your telescope. It is best to build the telescope in a place where you have a clear view of the skies, a stable footing, and sufficient space around you. Before beginning assembly, remove all the parts from the packaging, and, using the diagram, check to make sure no parts are missing.

2. Tripod
   Take the tripod (9) out of the box. Carefully open the legs and place the tripod on a level surface place and lock the accessory tray (13) on the center knob and rotate until it snaps in place (No. 3).

   • Note: Please do not forget to remove the accessory tray before collapsing the tripod.

3. Telescope
   Loosen the screw (12) in the dovetail mount so that it is completely retracted (No. 4). Place the telescope with the dovetail in the mount and tighten the screw. Make sure that the National Geographic logo is upright.

4. Altitude knob
   Loosen the vertical knob by rotating it anticlockwise, align the optical telescope tube (1) horizontally, and retighten the knob (No. 5).

5. Mount
   Place the mount base’s mounting holes on the tripod’s mounting screws and tighten them (No. 6).

6. Eyepiece
   Remove one eyepiece from its eyepiece holder (6) and slide it into the eyepiece connection (3). Tighten the holding screws (No. 5). Start with the lowest magnification eyepiece, which has the highest focal length printed on it (e.g. 20 mm or 25 mm, depending on your model) to locate objects and find the correct focus. If you have the object you want to view centered in the field of view, switch to a higher magnification by using an eyepiece with a shorter focal length. After changing the eyepiece, it might be necessary to adjust the focus again (see section 8).

7. Dust cover
   Remove the dust cover (15) that protects the objective lens of the optical tube opening (2).

8. Focus wheel
   To get objects into focus, your telescope is equipped with precise focus control. When you use the telescope for the first time, you might need to turn the focus wheel (4) multiple times to achieve a focused image. To try it out, pick a landmark or a building far away in daylight or bright twilight, and turn the focus wheel until the object comes into focus. Remember, objects to be observed cannot be closer than 20 meters away.

9. LED viewfinder (only included with 90-62100)
   The telescope with Art. No. 90-62100 is equipped with an LED viewfinder (10). The LED viewfinder projects a red dot on the visor to help you point at objects. For the first use, remove the plastic cover on the battery so the LED can be switched on. To use the viewfinder, you need to align the finder to the telescope optic. To achieve this, point the telescope at a landmark or building that is a few hundred meters away and center this object in the field of view while using an eyepiece with a low magnification (e.g. 20 mm or 25 mm). Switch on the LED viewfinder and adjust it using the alignment screws of the viewfinder.

Sandbox

1. Batteries
   Remove the cover of the battery compartment (11), located on the top side of the mount’s base, and insert the batteries in the battery holder (No. 2). Use 6 AA batteries and make sure the polarities are aligned correctly. Place the holder into the compartment and cover it. Do not use rechargeable batteries.

2. Handbox
   Ensure that the on/off switch is in the off position (No. 8). Remove the handbox from the handbox tray (7), and plug one end of the cable into the port labelled with “HBX” and the other one into the RJ-45 port of the handbox. Flip the switch to the on position. The handbox display should light up, accompanied by a sound.

3. Setup
   Time and Date After turning on the handbox, you will be prompted to enter the date and time. Do so by navigating with the arrow keys and entering the numbers with the number pad (7) on the handbox. When done, press the centre key (5), located between the arrow keys. Daylight saving time If the daylight saving time is in effect, select status:on. If daylight saving time is not in effect, select status:off.

Location
When asked for your location, you can either choose a city near you by selecting the ‘Country & City’ option or enter your GPS coordinates by selecting ‘Custom Site’.

• a) Country & City
  Select the country where you are by using the up and down arrow keys. Then select the city by using the left and right arrow keys. When done, use the centre key (5) to select the location.
  b) Custom Site
  Enter the details of your location as follows:

  • Name: Enter a custom name for your location.
  • Lon: Enter the longitudinal coordinate of your location.
  • Lat: Enter the latitudinal coordinate of your location.
  • Zone: Enter the time zone of your location.

Example:

• Name:
• Berlin; Lon: E013° 25′ ;
• Lat: N52° 30° ; Zone: E01
• Time zone east of Greenwich: E01-E12
• Time zone west of Greenwich: W01-W12
• Greenwich time zone (GMT): E00 oder WOO

OTA (Optical Tube Assembly) Zero
Here you will be asked to provide the orientation of the telescope.

• In the ‘Azi:’ field, enter ‘000’.
• In the ‘Alt:’ field, enter ’00’.

Open the Altitude and Azimuthal locking knobs. Adjust the telescope so that the tube opening (2) is pointing directly north and is level. It is recommended that you use the included compass (18) and bubble level to make sure the device is positioned accurately. You can put the compass into the eyepiece connection (3). Then retighten the locking knobs
Alignment
In order to use your telescope’s Go To mode, you must align the telescope properly so it knows where it is pointing when it is turned on. There are three ways to align your telescope: one-, two- and three-star alignment.

• Step 1: To start the alignment, press the centre key (5) on the handbox and select the first menu option, ‘Telescope Align’. There you will be able to choose between one, two and three-star alignment. The more stars you use for the alignment the higher the slewing precision of your telescope will be.
  One-Star Alignment:

• Step 2 : After you select this option, you will be prompted to select a target star. The software will select a star that is very visible in the night sky. If you happen to know of a star you can see with the naked eye, you can choose it by pressing the up and down arrow keys and then selecting it with the centre key (5). In most cases, you will want to select the first option presented to you. Do so by pressing the centre key (5).

• Step 3: The telescope will now slew to that star and will prompt you to centre it in the field of view, which you can do by using the arrow keys. The star you’re focusing on is the brightest star in the region your telescope is pointing at. When the star is centred, confirm the position with the centre key (5). The telescope is now aligned.
  Two- and Three-Star Alignment:
  The procedure is similar to one-star alignment. The only difference is that you’ll have to repeat steps 2 and 3 twice or thrice depending on the type of alignment you’ve chosen.
  Note: If you have aligned the telescope, don’t move it manually. Use the arrow keys on the handbox to make adjustments. If you do move it manually or change the tripod orientation, the telescope has to be realigned.

Further Adjustment:
Target Sync: With this method, you can further improve the alignment of the telescope. After slewing to a star target you know, you can centre the object precisely in the field of view. Press the centre key (5) and select ‘Telescope Align’, then Target Sync’. The telescope will align to that target and have more precise positioning for further targets you want to observe.
Backlash Correction: You can improve the precision of the telescope by training the backlash correct tion of the axis. This must be done separately for each axis and is not necessary for most cases. Simply go to the main menu by pressing the centre key (5) and select ‘Telescope Align’ and then ‘RA BKlash Corr.’ to adjust the right ascension axis (horizontal axis) or ‘DEC BKlash Corr.’ to adjust the declination axis (vertical axis). Then follow the on-screen instructions.

Menus

Initial Start:

• Welcome screen
• Date and Time
• Daylight saving
  • Status: off
  • Status: on
• Custom Site
  • Name:
  • Lon:
  • Lat:
  • Zone:
• Country & City
  • Country: up and down
  • City: left and right
• OTA Zero

Main Menu Overview

Telescope Align

• One Star Align Aligns the telescope with a single star
• Two Star Align Aligns the telescope with two stars
• Three Star Align Aligns the telescope with three stars
• Target Sync Further improves the alignment of the telescope
• RA BKlash Corr. Calibrate RA axis backlash
• DEC Bklash Corr. Calibrate DEC axis backlash

Navigation

• Solar System Object catalogue of the solar system
• Constellation Catalogue with the stellar constellations
• Famous Star Famous star catalogue
• Messier Catal. Catalogue with bright deep-sky objects
• NGC Catalog. Extensive catalogue with broad variety
• IC Catalogue Catalogue with faint objects
• Sh2 Catalog. Catalogue with faint objects
• Bright Star Cat Catalogue with bright stars
• SAO Star Catal. Extensive star catalog
• Customer Objects Allows you to store your own obiects
• Input RA and DEC Insert a custom point in the sky
• Custom Land Goal Insert a custom land target

Observation

After aligning the telescope, the motors in the mount will begin to move the telescope so that the Earth’s rotation is compensated for and the objects stay in the field of view of the telescope.
Note: If you have aligned the telescope, don’t move it manually. Use the arrow keys on the handbox to make adjustments. If you do move it manually or change the tripod position, the telescope has to be realigned. Once you have aligned the telescope, you can slew to every object in the night sky. This is done by pressing the centre key (5) on the handbox and selecting the ‘Navigation’ option from the menu. Select the object catalogue you prefer from the menu by using the arrow keys. Press the centre key (5) to confirm your selection. When you select an object catalogue, the first object of the catalogue will be displayed. You can change the currently displayed object by pressing the up and down arrow keys. Select the object you want to view with the telescope by pressing the centre key (5). The telescope will then slew to that position.
Example: Let’s observe Jupiter.
Jupiter is visible in different parts of the world at different times depending on location, time of year and local conditions. If it is visible from your location and the telescope is aligned, you can navigate to Jupiter by following these steps. Press the centre key (5) on your handbox and select the ‘Navigation’ option. Move the selection bar with the arrow keys, then press the centre key (5) for confirmation. Next, select the ‘Solar System’ menu option and scroll with the arrow kevs to find Jupiter. Select Jupiter by pressing the centre key (5). Once you select Jupiter, your telescope will automatically slew towards Jupiter. When the telescope reaches Jupiter’s position, a loud beeping noise will let you know that the telescope is done moving. You may then begin your observation.
Formula for calculating magnification:
Focal length (Telescope) ÷ Focal length (Eyepiece) = Magnification
Examples:

Possible observation targets
The following section details several interesting and easy-to-find celestial objects you may want to observe through your telescope.

The Moon
The moon is Earth’s only natural satellite.

• Diameter: 3,476 km
• Distance: 384,400 km from Earth (average)

The moon has been known to humans since prehistoric times. It is the second brightest object in the sky, after the sun. Because the moon circles the Earth once per month, the angle between the Earth, the moon and the sun is con- stantly changing; one sees this change in the phases of the moon. The time between two consecutive new moon phases is about 29.5 days (709 hours).

• Constellation Orion: The Orion Nebula (M 42)
• Right Ascension: 05 35m (hours : minutes)
• Declination: -05° 22′ (Degrees : minutes)
• Distance: 1,344 light years from Earth

Though it is more than 1,344 light years from Earth, the Orion Nebula (M 42) is the brightest diffuse nebula in the sky. It is visible even with the naked eye and a worthwhile object for telescopes of all types and sizes. The nebula consists of a gigantic cloud of hydrogen gas with a diameter of hundreds of light years.

• Constellation Lyra: The Ring Nebula (M 57)
• Right Ascension: 18 53m (hours : minutes)
• Declination: +33° 02′ (Degrees : minutes)
• Distance: 2,412 light years from Earth

The famous Ring Nebula (M57) in the Lyra constellation is often viewed as the prototype of a planetary nebula. It is one of the magnificent features of the Northern Hemisphere’s summer sky. Recent studies have shown that it is prob- ably comprised of a ring (torus) of brightly shining material that surrounds the central star (only visible with larger telescopes), and not a gas structure in the form of a sphere or an ellipse. If you were to look at the Ring Nebula from the side, it would look like the Dumbbell Nebula (M 27). When viewed from Earth, we are looking directly at the pole of the nebula. Constellation Vulpecula (Little Fox): The Dumbbell Nebula (M 27)

• Right Ascension: 19h 59m (hours: minutes)
• Declination: +22° 43′ (Degrees: minutes)
• Distance: 1,360 light years from Earth

The Dumbbell Nebula (M 27) was the first planetary nebula ever discovered. On 12 July 1764, Charles Messier discovered this new and fascinating class of objects. We see this object almost directly from its equatorial plane. If we could see the Dumbbell Nebula from one of its poles, we would probably see the shape of a ring, something very similar to what we know as the Ring Nebula (M 57). In reasonably good weather, we can see this object well, even with low magnification.

Notes on cleaning

Before cleaning the device, disconnect it from the power supply by removing the plug or batteries. Clean the eyepieces and lenses only with a soft, lint- free cloth, like a microfibre cloth. Do not apply excess pressure to the cloth to avoid scratching the lenses. Protect the device from dust and moisture. Store it in the supplied bag or trans-portation packaging. The batteries should be removed from the unit if it has not been used for a long time.

EC Declaration of Conformity

• Bresser GmbH has issued a “Declaration of Conformity” in accordance with applicable guidelines and corresponding standards.
• The full text of the EU Declaration of Conformity is available at the following internet address:
• www.bresser.de/download/9062000/CE/9062000_CE.pdf.
• www.bresser.de/download/9062100/CE/9062100_CE.pdf.

UKCA Declaration of Conformity

• Bresser GmbH has issued a „Declaration of Conformity” in accordance with applicable guidelines and corresponding standards.
• The full text of the UKCA declaration of conformity is available at the following internet address:
• www.bresser.de/download/9062000/UKCA/9062000_UKCA.pdf.
• www.bresser.de/download/9062100/UKCA/9062100_UKCA.pdf.
• Bresser UK Ltd.
• Suite 3G, Eden House, Enterprise Way, Edenbridge,
• Kent TN8 6HE United Kingdom

DISPOSAL
Dispose of the packaging materials properly, according to their type, such as paper or cardboard. Contact your local waste-disposal service or environmen- tal authority for information on the proper disposal. Do not dispose of electronic devices in the household garbage!
As per Directive 2002/96/EC of the European Parliament on waste electrical and electronic equipment and its adaptation into German law, used electronic devices must be collected separately and recycled in an environmentally friendly manner. Empty, old batteries must be disposed of at battery collection points by the consumer. You can find out more information about the disposal of devices or batteries produced after 6 January 2006 from your local waste-disposal service or environmental authority. In accordance with the regulations concerning batteries and recharge- able batteries, disposing of them in normal household waste is explicitly forbidden. Please make sure to dispose of your used batteries as required by law – at a local collection point or in the retail market. Disposal of domestic waste violates the Battery Directive. Batteries that contain toxins are marked with a sign and a chemical symbol.

1. battery contains cadmium
2. battery contains mercury
3. battery contains lead

Warranty

The regular warranty period is 2 years and begins on the day of purchase. To benefit from an extended voluntary warranty period as stated on the gift box, registration on our website is required. You can consult the full warranty terms as well as information on extending the warranty period and details of our services at www.bresser.de/warranty_terms.

Service

Please contact the service center first for any questions regarding the product or claims, preferably by e-mail.

• E-Mail:
• service@bresseruk.com.
• Telephone: +441342 837 098

BRESSER UK Ltd.

• Suite 3G, Eden House
• Enterprise Way
• Edenbridge, Kent TN8 6HF
• United Kingdom

Number charged at local rates in the UK (the amount you will be charged per phone call will depend on the tariff of your phone provider); calls from abroad will involve higher costs.

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