---
product_id: 8158866
title: "1.25\" Star Diagonal for Refractor & SCT Telescopes | 90° Viewing Angle, Mirror Star Diagonal, Enhanced Comfort & Bright Views, Accepts 1.25\" Eyepieces, Durable Construction"
brand: "celestron"
price: "€ 83.09"
currency: EUR
in_stock: true
category: "Celestron"
url: https://www.desertcart.fr/products/8158866-1-25-star-diagonal-for-refractor-and-sct-telescopes-90
store_origin: FR
region: France
---

# 1.25” focuser fit 90° viewing angle Dielectric coated prism 1.25" Star Diagonal for Refractor & SCT Telescopes | 90° Viewing Angle, Mirror Star Diagonal, Enhanced Comfort & Bright Views, Accepts 1.25" Eyepieces, Durable Construction

**Brand:** celestron
**Price:** € 83.09
**Availability:** ✅ In Stock

## Summary

> 🔭 See the stars without the strain — upgrade your view, upgrade your night!

## Quick Answers

- **What is this?** 1.25" Star Diagonal for Refractor & SCT Telescopes | 90° Viewing Angle, Mirror Star Diagonal, Enhanced Comfort & Bright Views, Accepts 1.25" Eyepieces, Durable Construction by celestron
- **How much does it cost?** € 83.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/8158866-1-25-star-diagonal-for-refractor-and-sct-telescopes-90)

## Best For

- celestron enthusiasts

## Why This Product

- Trusted celestron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Crystal Clear Views:** Dielectric coatings enhance light transmission for brighter, sharper celestial images.
- • **Compact & Lightweight:** Weighing just 5.6 ounces, it’s easy to carry and perfect for on-the-go astronomy.
- • **Effortless Neck Comfort:** 90° angled design eliminates neck strain during extended stargazing sessions.
- • **Universal Compatibility:** Seamlessly fits any telescope with a 1.25” focuser or visual back for versatile use.
- • **Trusted Quality & Warranty:** Backed by Celestron’s two-year limited warranty for peace of mind.

## Overview

The Celestron 1.25" Star Diagonal is a precision accessory designed for refractor and SCT telescopes with 1.25” focusers. Featuring a 90° viewing angle and dielectric-coated roof prism, it delivers comfortable, bright, and sharp views of overhead celestial objects. Lightweight and compact, it supports standard 1.25” eyepieces and accessories, making it an essential upgrade for serious amateur astronomers seeking ergonomic and optical excellence.

## Description

The Celestron 1.25” Star Diagonal slides into the focuser (1.25”) of your refractor or catadioptric telescope and accepts standard 1.25” eyepieces, allowing you to view objects more comfortably. A diagonal that is angled at 90º helps avoid neck strain when looking through through the eyepiece. Please note that a 90º diagonal will display images that are right side up, but left to right orientation will be reversed.

## Features

- Fits Telescopes With 1.25” Focusers Or Visual Backs, 90° Viewing Angle, Best For Observing Objects Overhead
- Item Package Dimensions:4.5"L X2.25"W X3"H
- Country Of Origin: China
- Product Type: Binocular

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00009X3UO |
| Age Range Description | Adult |
| Apparent Angle of View | 90 degrees |
| Best Sellers Rank | #446 in Telescope & Microscope Accessories #558 in Binoculars |
| Brand | Celestron |
| Built-In Media | Star Diagonal |
| Coating | Dielectric coatings |
| Color | Black |
| Compatible Devices | Telescopes with 1.25-inch focusers or visual backs |
| Customer Reviews | 4.5 4.5 out of 5 stars (262) |
| Enclosure Material | Aluminum |
| Exit-Pupil Diameter | 1.25 millimeters |
| Features | Accepts standard 1.25” eyepieces, Barlow lenses, and other accessories with a 1.25” insert barrel |
| Field of View | 90 degrees |
| Focus Description | Manual Focus |
| Focus Type | Individual Focus |
| Global Trade Identification Number | 00050234941150 |
| Item Dimensions L x W | 4.5"L x 2"W |
| Item Type Name | Celestron 1. 25" star diagonal, black (94115-a). |
| Item Weight | 5.6 ounces |
| Manufacturer | Celestron Acquisition LLC |
| Manufacturer Part Number | 94115-A-CGL |
| Model Name | 1.25" Star Diagonal |
| Model Number | 94115-A-CGL |
| Mount Type | Monopod Mount |
| Number of Items | 1 |
| Objective Lens Diameter | 1.25 millimeters |
| Prism Type | Roof Prism |
| Size Map | Compact |
| Specific Uses | 3D |
| UPC | 050234941150 |
| Unit Count | 1 Count |
| Warranty Description | TWO-YEAR LIMITED WARRANTY |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Celestron
- **Objective Lens Diameter:** 1.25 millimeters
- **Special Feature:** Accepts standard 1.25” eyepieces, Barlow lenses, and other accessories with a 1.25” insert barrel
- **Specific Uses For Product:** 3D

## Images

![1.25" Star Diagonal for Refractor & SCT Telescopes | 90° Viewing Angle, Mirror Star Diagonal, Enhanced Comfort & Bright Views, Accepts 1.25" Eyepieces, Durable Construction - Image 1](https://m.media-amazon.com/images/I/514YiDl8GAL.jpg)

## Frequently Bought Together

- Celestron 94115-A 1.25 inch Star Diagonal, Black
- Celestron 93653-A 1.25 inch Visual Back Metal Adapter - Threads onto Celestron 5" to 11" Schmidt Cassegrain Telescopes, Compatible with 1.25" Accessories, Black
- Celestron StarPointer Finderscope

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-08-28*