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The Celestron 76mm Cometron Firstscope is a compact, portable tabletop Dobsonian telescope designed for beginners. Featuring a fast f/5 focal ratio and a 76mm aperture, it offers wide-field views of celestial objects. Lightweight and easy to assemble without tools, it includes a 5x24 finderscope, two Kellner eyepieces, and bonus astronomy software, making it an ideal starter telescope for casual stargazers eager to explore the night sky.



| ASIN | B00DV6SBRO |
| Additional Features | Comet Viewing Special Edition |
| Best Sellers Rank | #42,570 in Electronics ( See Top 100 in Electronics ) #8 in Telescope Reflectors |
| Brand | Celestron |
| Built-In Media | Finderscope and 2 Kellner eyepieces |
| Coating | Multi-Coated |
| Compatible Devices | Eyepieces, Finderscope |
| Customer Reviews | 4.0 out of 5 stars 316 Reviews |
| Exit Pupil Diameter | 19.24 Millimeters |
| Eye Piece Lens Description | Kellner |
| Eye piece lens description | Kellner |
| Field Of View | 1.78 Degrees |
| Finderscope | Reflex |
| Focal Length Description | 300 millimeters |
| Focus Type | Manual Focus |
| Global Trade Identification Number | 00050234210232 |
| Item Dimensions D x W x H | 33D x 25.4W x 25.4H centimeters |
| Item Weight | 907 g |
| Manufacturer | Celestron |
| Manufacturer Part Number | 21023-CGL |
| Model Name | 21023 |
| Model Number | 21023-CGL |
| Model name | 21023 |
| Mount | Altazimuth Mount |
| Objective Lens Diameter | 76 Millimeters |
| Objective lens diameter | 76 Millimeters |
| Optical tube length | 70 Millimeters |
| Optical-Tube Length | 70 Millimeters |
| Power Source | Battery Powered |
| Telescope mount description | Altazimuth Mount |
| UPC | 050234210232 962392012170 |
| Zoom Ratio | 2:1 |
D**A
Happy with it
I managed to see a little Jupiter, it was an incredible experience, and of course you can see the moon, but I recommend to buy a lent for 4mm
G**N
That's bad, stay away.
This is for decorating your home; if you want to see planets, stay away from this model and invest more money in another one. This one is purely for decoration.
J**S
Good beginner telescope
This telescope has allowed me to get a good view of the moon and Jupiter with its Galilean moons (although it just looks like a bright dot) Pros Easy to build ✅ Good quality ✅ Good value for money ✅ Cons: It is a beginner scope so its usage is going to be limited by its aperture. Overall, I would deffo buy this as a beginner who wants to learn and start exploring the sky without breaking the bank. The dobsonian makes it easy to look through and position without having to worry about a tripod.
M**1
Zondegeld
Als b-product/retourproduct gekocht bij Amazon. Maar deze had niet verkocht mogen worden. Kwam niet netjes aan. Open doos, rondslingerend product. Verder niet over geklaagd, maar toch, bij deze. Product zelf is ook waardeloos, behalve als leuk voor op de kast. Had een cadeau moeten zijn, maar helaas. Er zit een spiegel in die je niet kan stellen, wat wel zou moeten, zou je het een beetje willen gebruiken. Deze spiegel zit gelijmd. Dus het is echt alleen om naar te kijken maar niet om mee te kijken.
L**K
Lekkie rozczarowanie, cos miedzy teleskopem a zabawka
Rozczarowuje co mozna zobaczyc. Sprzedawane jako teleskop do wielu obiektow na niebie. Niestety zobaczycie tylko ksiezyc i to tak srednio dokladnie :( by zobaczyc ksiezyc nieco fajniej (np. Kratery) to trzeba dokupic osobno soczewke 4-6mm. Gdzie sensowna bedzie kosztowac od 50% ceny calego tego teleskopiku do 150%… niezla rzecz na prezent, ale tak naprawde powtorze, tylko do obejrzenia ksiezyca :(
F**E
Muy buen equipo amateur
Muy buena calidad para un tamaño tan compacto. Los lentes que incluye son suficientes para unas noches claras y tranquilas, sin embargo, recomendaría comprar un kit de lentes adicionales con mayor alcance y filtros -por ejemplo para luna llena- pues puede mejorar significativamente la experiencia y sin agregar tanto al costo.
C**N
Prático, bonito e de boa qualidade
Leve, fácil de transportar. Sei que vou ter que investir em objetivas e uma barlow para um maior aumento. As que vêm com ele têm qualidade razoável, mas são de 10 e 20 mm somente. Mas como é um produto durável e cujas imagens podem ser melhoradas, pelo preço e praticidade, gostei.
Trustpilot
1 month ago
2 weeks ago