1. Einleitung
Congratulations on your purchase of the Skywatcher Evostar-90 (EQ-2) Telescope. This achromatic refractor telescope is designed to provide clear and detailed views of celestial objects, making it an excellent choice for beginners and intermediate astronomers. With its 90mm aperture and 900mm focal length, it offers a versatile platform for observing the Moon, planets, and brighter deep-sky objects. The robust EQ-2 equatorial mount allows for precise tracking of astronomical targets as they move across the night sky.
Image: The Skywatcher Evostar-90 (EQ-2) Telescope fully assembled, showing the optical tube, equatorial mount, and adjustable aluminum tripod.
2. Sicherheitshinweise
- Never look directly at the Sun through the telescope or its finderscope without a professionally manufactured solar filter. Dies kann zu sofortigen und irreversiblen Augenschäden bis hin zur Erblindung führen.
- Lassen Sie das Teleskop nicht unbeaufsichtigt, insbesondere nicht in Anwesenheit von Kindern.
- Behandeln Sie optische Komponenten vorsichtig, um Kratzer oder Beschädigungen zu vermeiden.
- Stellen Sie sicher, dass das Stativ auf einer ebenen Fläche stabil steht, um ein Umkippen zu verhindern.
3. Packungsinhalt
Überprüfen Sie, ob alle Komponenten in Ihrem Paket vorhanden sind:
- Skywatcher Evostar-90 (EQ-2) Optical Tube (90mm f/900 Refractor)
- EQ-2 Equatorial Mount
- Adjustable Aluminum Tripod with Accessory Tray
- 10-mm-Okular (1.25")
- 25-mm-Okular (1.25")
- 6x30 Sucherfernrohr
- 31.7mm Diagonal Mirror
4. Installationsanleitung
Befolgen Sie diese Schritte, um Ihr Teleskop zusammenzubauen:
- Zusammenbau des Stativs: Extend the legs of the aluminum tripod to a suitable height and secure them. Attach the accessory tray to the tripod brace for stability and convenience.
- Attach the EQ-2 Mount: Place the EQ-2 equatorial mount onto the tripod head and secure it with the provided bolt. Ensure it is firmly attached.
- Optischen Tubus anbringen: Locate the mounting rings on the optical tube. Open them and place the telescope tube into the rings, then close and tighten them securely onto the EQ-2 mount's dovetail plate.
- Installieren Sie das Sucherfernrohr: Schieben Sie den 6x30-Sucher in seine Halterung am optischen Tubus und ziehen Sie die Befestigungsschrauben fest.
- Insert the Diagonal and Eyepiece: Insert the 31.7mm diagonal mirror into the focuser of the telescope. Then, insert either the 25mm or 10mm eyepiece into the diagonal and secure it with the thumbscrew. Start with the 25mm eyepiece for wider views and easier object location.
- Balance the Telescope: Adjust the counterweight on the counterweight shaft until the telescope is balanced in Right Ascension (RA). This prevents strain on the mount and allows for smoother tracking.
- Polar Alignment (Basic): For basic observation, point the mount's polar axis roughly towards Polaris (the North Star) in the Northern Hemisphere. For more precise tracking, consult a guide on detailed polar alignment.
5. Bedienung Ihres Teleskops
5.1. Ausrichten des Suchers
The finderscope is crucial for locating objects. During daylight, point the main telescope at a distant, stationary object (e.g., a tree top or telephone pole). Look through the 25mm eyepiece and center the object. Then, look through the finderscope and adjust its alignment screws until the same object is centered in the finderscope's crosshairs.
5.2. Fokussieren
Once an object is in view, turn the focuser knobs slowly until the image appears sharp and clear. You may need to make small adjustments as objects move or as your eye adapts.
5.3. Vergrößerung ändern
The telescope comes with two eyepieces: 25mm and 10mm.
- Der 25-mm-Okular provides a lower magnification (36x) and a wider field of viewIdeal zum Auffinden von Objekten und zur Beobachtung größerer Himmelskörper wie des Mondes oder von Sternhaufen.
- Der 10-mm-Okular provides a higher magnification (90x), suitable for more detailed views of planets or smaller lunar features.
To change magnification, simply remove the current eyepiece from the diagonal and insert the desired one, securing it with the thumbscrew.
5.4. Verfolgung von Himmelskörpern
Due to Earth's rotation, celestial objects appear to drift across the field of view. The EQ-2 mount allows you to track them by turning the slow-motion controls on the Right Ascension (RA) axis. Once polar aligned, you only need to turn the RA knob to keep an object centered.
6. Wartung und Pflege
- Reinigung der Optik: Dust on the objective lens or eyepieces should be removed with a soft brush or compressed air. For smudges, use a specialized optical cleaning solution and a microfiber cloth designed for optics. Avoid touching optical surfaces with your fingers.
- Lagerung: When not in use, store the telescope in a dry, dust-free environment. Keep dust caps on the objective lens and focuser to protect the optics.
- Allgemeine Pflege: Avoid exposing the telescope to extreme temperatures or sudden temperature changes. Do not overtighten knobs or screws.
7. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Das Bild ist unscharf oder unpräzise. | Falsche Fokuseinstellung. | Stellen Sie die Fokussierknöpfe langsam ein, bis das Bild scharf ist. |
| Mit dem Hauptteleskop können keine Objekte gefunden werden. | Der Sucher ist nicht auf das Hauptfernrohr ausgerichtet. | Align the finderscope as described in Section 5.1. |
| Image is shaky or unstable. | Tripod not stable, mount not balanced, or windy conditions. | Ensure tripod legs are fully extended and locked. Balance the telescope properly. Observe on calm nights. |
| Objekte treiben aus dem view schnell. | Insufficient polar alignment or not using slow-motion controls. | Improve polar alignment. Use the Right Ascension (RA) slow-motion control to track objects. |
8. Spezifikationen
- Optisches Design: Achromatic Refractor
- Öffnung: 90 mm
- Brennweite: 900 mm
- Brennweite: f/10
- Montagetyp: EQ-2 Equatorial
- Mitgelieferte Okulare: 10 mm (90x magnification), 25 mm (36x magnification) - 1.25" barrel diameter
- Sucherfernrohr: 6 x 30
- Diagonale: 31.7 mm (1.25")
- Stativ: Adjustable Aluminum (approx. 71 cm to 121 cm height)
- Approximate Assembled Weight: 14 kg (basierend auf dem Paketgewicht)
- Abmessungen (montiert): 114 x 44 x 24 cm (L x B x H)
9. Garantie und Support
Specific warranty information for the Skywatcher Evostar-90 (EQ-2) Telescope may vary by region and retailer. Please refer to the warranty card included with your product or contact your point of purchase for details regarding warranty coverage and service.
For technical support, additional resources, or to download the latest manuals, please visit the official Sky-Watcher webWebsite oder wenden Sie sich an die Kundendienstabteilung.