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The SIRIUS range

Since 2020, we have been aiming to develop a range of sustainable, reusable launch vehicles, dedicated to the launch of small satellites (SmallSats).

SIRIUS will enable small satellite operators to benefit from the same launch services offered to heavy satellite operators.

This will enable the small satellite industry to benefit from a fast and accurate orbit of its satellites.

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A solution dedicated to nano, micro and mini-satellites.

Sirius Space Services is expanding its range of SIRIUS launchers to meet the needs of small satellites. Thanks to this range, we offer an agile and dedicated solution for each category of small satellites between 175 and 800 kg on a reference SSO orbit of 700Km.

A range of launchers with a common base. 

The SIRIUS range consists of the Sirius 1, Sirius 13 and Sirius 15 launchers. These last two are developed from the Sirius 1 launcher to which we add 2 or 4 boosters having an identical architecture at the Sirius 1 stage. 

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RELIABLE

Simple and robust design.


Designed and manufactured to ECSS standards.

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SUSTAINABLE

Use of responsible materials and processes ;

Recovery and reuse of 100% of launcher's elements ultimately ;

Use of bio-ergols.

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TECHNOLOGICAL

Metal additive manufacturing for various launcher components.

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COMPETITIVE

Cost control (R&D, industrialisation, launch).

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SIRIUS  1 

Performance                            to SSO 700KM

Number of stages      Kickstage

Height 

Diameter

Thrust of The 1rst Stage
9 engines (STAR 1)

Thrust of the 2nd stage   
1 engine ( STAR 1)

Maiden
Flight

175kg

2

23.5m

1.7m

495kN

55kN

1st Semester 2025

SIRIUS 13

Performance 
to SSO 700Km

Number of stages    Kickstage

Height 

Thrust of the 1st Stage
27 engines (STAR 1)

Thrust of the 2nd Stage    1 engine (STAR 1)

Maiden          Flight

600kg

2

24.7m

1485kN

55kN

 2026

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SIRIUS 15

Performance                            to SSO 700Km

Number of stages    Kickstage

Height 

Thrust of the 1rst Stage 45 engines (STAR 1)

Thrust of the 2nd stage     1 engine (STAR 1)

Maiden          Flight

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1000kg

2

27.5m

2475kN

55kN

2027

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An innovative technique of engine manufacturing. 

We chose to design our engines to be manufactured using additive manufacturing methods. We thus reduce the number of parts and sealing flanges with a significantly faster manufacturing process and a lightweight and optimized design. 

Engine Star 1

Propellant

Nominal
Thrust

Printed entirely 
in 3D

CHL/LO2/

55kN

User's manual

The user's manual is available on request. Please complete the form below and we will process your request as soon as possible.

Thank you for your request !

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