# Refractor telescope Skywatcher BK 909 EQ3-2 90mm aperture 900mm focal length

**URL:** https://aio.lv/en/product--skywatcher-sw-2205--11123985
**Data updated:** 2026-04-26 18:25 (EEST)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-2205
**EAN:** 5901691600058
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 441.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 365.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-2205--11123985

## 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 | 16.19 EUR |

## Summary description

Skywatcher BK 909 EQ3-2 is a refractor telescope with a 90 mm aperture and 900 mm focal length on an EQ3-2 equatorial mount. Designed for visual observation of the Moon, planets and brighter deep-sky objects, it offers a compact optical tube and stable tracking with the equatorial mount. Suitable for beginners and amateur astronomers seeking portable, easy-to-setup gear for night-sky viewing and basic astrophotography.

## Long description

The Skywatcher BK 909 EQ3-2 refractor telescope features a 90 mm aperture and a 900 mm focal length in a compact optical tube mounted on an EQ3-2 equatorial mount. It is designed for visual observation of the Moon, planets and brighter deep-sky objects, and comes as a portable kit that balances optical performance with straightforward setup. The instrument includes basic accessories for immediate use and provides stable tracking for manual or motor-assisted guiding.
Advantages
The 90 mm objective delivers clear, high-contrast views of lunar and planetary detail while the 900 mm focal length provides moderate magnification suitable for a range of targets. The refractor design requires minimal collimation and maintenance compared with reflector systems, and the compact tube makes the instrument easier to transport and store. The EQ3-2 equatorial mount enables polar alignment and controlled tracking, which is helpful for longer observing sessions and entry-level astrophotography.
Suitable for
Visual observation of the Moon and planets
Viewing star clusters and brighter deep-sky objects
Beginner to intermediate amateur astronomers
Portable observing sessions and casual field use
Basic astrophotography with careful setup and guiding
When it may not be suitable
This telescope is not optimized for faint, very deep-sky objects that require larger apertures to resolve low-surface-brightness detail. Users seeking high-resolution planetary imaging or advanced deep-sky astrophotography may find the aperture and mount limitations restrictive compared with larger aperture instruments and more robust mounts. Long-exposure astrophotography will require precise polar alignment and possibly motorization or autoguiding accessories to reduce tracking error.
Key specifications
Optical type: Refractor
Aperture: 90 mm
Focal length: 900 mm
Focal ratio: f/10
Mount type: Equatorial (EQ3-2)
Suitable for visual observing and entry-level astrophotography
Portable optical tube design
How to use
Set the tripod on a stable, level surface and attach the EQ3-2 equatorial mount, then mount the optical tube and secure all clamps. Perform a rough polar alignment using a visible pole star or the mount's polar scope if available, then balance the tube on both axes before locking the clutches. Begin with a low-power eyepiece to locate targets, then increase magnification as seeing allows. For basic astrophotography, attach a camera using the provided adapters, ensure accurate balance and polar alignment, and use short exposures or a motor drive to limit field rotation and tracking error.
What to consider before purchase
Intended use: mainly lunar, planetary and brighter deep-sky observing
Portability: compact tube suits car transport and field trips
Mount capability: EQ3-2 supports entry-level tracking but has load limits
Accessories needed for astrophotography: camera adapters, possible autoguider
Storage and setup space for the tripod and mount
Usage recommendations
Use low- to medium-power eyepieces for initial target acquisition and switch to higher magnification for planetary detail when atmospheric seeing is stable. For long sessions, polar-align the mount carefully and balance the optical tube to minimise strain on the mount bearings. When imaging, start with short exposures or video capture for planetary work; add a motor drive or autoguider for longer deep-sky exposures.

## FAQ

### How much does the Skywatcher BK 909 EQ3-2 90mm refractor telescope cost, and is it available for purchase?

The price is 441.99 € (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 EQ3-2 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/11123985/65906545_large.webp