# Refractor telescope Skywatcher BK 909 EQ2 — 90 mm aperture, 900 mm focal length

**URL:** https://aio.lv/en/product--skywatcher-sw-2204--11156178
**Data updated:** 2026-03-12 10:15 (EET)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-2204
**EAN:** 5901691600041
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 315.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 261.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-2204--11156178

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 11.64 EUR |

## Summary description

Skywatcher BK 909 EQ2 is a 90 mm aperture refractor telescope with a 900 mm focal length mounted on an EQ2 equatorial mount. Designed for visual observation of the Moon, planets and brighter deep-sky objects, it offers straightforward manual tracking via the EQ2 head and basic astrophotography potential with short exposures. Suitable for beginners and amateur observers seeking a portable optical tube with moderate magnification.

## Long description

The Telescope Skywatcher BK 909 EQ2 90mm aperture 900mm focal length is a compact refractor instrument designed for visual astronomical observation and basic astrophotography on a stable equatorial mount. With a 90 mm objective and 900 mm focal length, it provides a moderate focal ratio suitable for observing the Moon, planets and brighter deep-sky objects. The EQ2 mounting offers manual equatorial tracking and slow-motion controls for targeted adjustments during viewing sessions.
Advantages
This Skywatcher refractor combines a 90 mm objective with a 900 mm focal length to deliver clear, contrasted images at medium to high magnification for solar system targets and brighter nebulae or star clusters. The optical tube’s specification and the equatorial EQ2 mount allow straightforward polar alignment and smoother follow-up of celestial objects. The instrument’s size and mounting make it portable enough for field observation while providing stability for extended visual use.
Suitable for
Visual observation of the Moon and planets
Viewing bright deep-sky objects such as open clusters and nebulae
Beginner astrophotography with short-exposure planetary imaging
Astronomy education and hobbyist observing sessions
Key specifications
Optical design: refractor (achromatic doublet)
Objective aperture: 90 mm
Focal length: 900 mm
Focal ratio: f/10
Mount type: manual equatorial mount (EQ2) with slow-motion controls
Typical uses: visual observing and short-exposure imaging
How to use
Set the telescope on a level surface and assemble the optical tube on the EQ2 equatorial mount according to the manufacturer’s assembly instructions. Perform a rough polar alignment of the mount using the mount’s polar axis to align with the North Celestial Pole; use the slow-motion controls to track objects as the Earth rotates. Start with a low-power eyepiece to locate the target, then switch to higher magnification eyepieces for detailed observation. For basic planetary imaging, attach a suitable camera to the eyepiece or use a planetary adapter and capture short videos or frames while the mount is tracking manually.
Usage recommendations
Use the telescope away from strong ground lighting for best contrast; allow the optics to reach outdoor temperature for optimal image quality. For more accurate tracking during imaging, consider polar-aligning carefully and using short exposure times to minimize field rotation on a manual equatorial mount.

## FAQ

### How much does the Skywatcher BK 909 EQ2 90mm refractor telescope cost, and is it available for purchase?

The price is 315.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 25.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Skywatcher BK 909 EQ2 90mm refractor telescope be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Skywatcher products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Skywatcher service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11156178/66727612_large.webp