🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.5

Radius: 13.2

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.45 AU - 0.73 AU

Year: 307 Days

Day: 12.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 23,859,533 km

• M1: 164,109 km (0.078 R)
• M2: 593,156 km (0.067 R)
• M3: 1,097,749 km (0.077 R)
• M4: 1,606,681 km (0.078 R)
• M5: 2,123,691 km (0.081 R)
• M6: 2,618,112 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.3

Radius: 14.9

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.54 AU - 0.64 AU

Year: 307 Days

Day: 5.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 23,859,533 km

• M1: 185,352 km (0.112 R)
• M2: 682,166 km (0.106 R)
• M3: 1,173,894 km (0.105 R)
• M4: 1,772,884 km (0.101 R)
• M5: 2,332,530 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.3

Radius: 12.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.59 AU - 0.63 AU

Year: 323 Days

Day: 7.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 179.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,859,533 km

• M1: 154,385 km (0.054 R)
• M2: 635,492 km (0.06 R)
• M3: 1,087,577 km (0.103 R)
• M4: 1,519,615 km (0.082 R)
• M5: 1,977,085 km (0.089 R)
• M6: 2,477,939 km (0.098 R)
• M7: 2,942,590 km (0.037 R)
• M8: 3,631,937 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.7

Radius: 11.1

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.74 AU - 0.76 AU

Year: 441 Days

Day: 9.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,859,533 km

• M1: 138,079 km (0.119 R)
• M2: 531,671 km (0.112 R)
• M3: 890,556 km (0.116 R)
• M4: 1,439,730 km (0.107 R)
• M5: 1,813,425 km (0.071 R)
• M6: 2,434,107 km (0.117 R)
• M7: 3,005,720 km (0.118 R)
• M8: 3,919,315 km (0.077 R)
• M9: 4,538,799 km (0.064 R)
• M10: 5,156,040 km (0.091 R)
• M11: 5,810,531 km (0.089 R)
• M12: 6,755,241 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43

Radius: 13.1

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.74 AU - 1.12 AU

Year: 608 Days

Day: 14.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 23,859,533 km

• M1: 185,801 km (0.039 R)
• M2: 714,479 km (0.058 R)
• M3: 1,223,711 km (0.054 R)
• M4: 2,079,261 km (0.077 R)
• M5: 2,727,020 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.4

Radius: 9

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.91 AU - 0.99 AU

Year: 628 Days

Day: 6.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,859,533 km

• M1: 112,049 km (0.105 R)
• M2: 479,611 km (0.111 R)
• M3: 895,493 km (0.116 R)
• M4: 2,438,894 km (0.086 R)
• M5: 2,762,175 km (0.088 R)
• M6: 3,126,296 km (0.069 R)
• M7: 3,894,332 km (0.04 R)
• M8: 4,246,934 km (0.077 R)
• M9: 5,345,581 km (0.063 R)
• M10: 5,819,357 km (0.08 R)
• M11: 7,322,666 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.3

Radius: 12.4

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.96 AU - 3.05 AU

Year: 2681 Days

Day: 7.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,859,533 km

• M1: 154,235 km (0.119 R)
• M2: 846,126 km (0.081 R)
• M3: 1,464,114 km (0.11 R)
• M4: 1,904,082 km (0.085 R)
• M5: 2,692,462 km (0.044 R)
• M6: 4,270,870 km (0.088 R)
• M7: 5,735,134 km (0.106 R)
• M8: 6,644,988 km (0.109 R)
• M9: 8,274,557 km (0.059 R)
• M10: 9,564,241 km (0.088 R)
• M11: 10,325,095 km (0.066 R)
• M12: 10,772,692 km (0.12 R)
• M13: 11,305,261 km (0.042 R)
• M14: 12,080,477 km (0.103 R)
• M15: 12,500,398 km (0.106 R)
• M16: 13,654,695 km (0.102 R)
• M17: 14,110,670 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.1

Radius: 13.5

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.81 AU - 3.55 AU

Year: 3846 Days

Day: 13.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 23,859,533 km

• M1: 167,998 km (0.108 R)
• M2: 1,107,323 km (0.086 R)
• M3: 1,595,012 km (0.103 R)
• M4: 2,131,470 km (0.052 R)
• M5: 2,627,687 km (0.028 R)
• M6: 3,237,298 km (0.068 R)
• M7: 3,836,587 km (0.076 R)
• M8: 4,350,904 km (0.049 R)
• M9: 5,208,848 km (0.034 R)
• M10: 5,705,663 km (0.038 R)
• M11: 7,683,197 km (0.03 R)
• M12: 8,121,220 km (0.099 R)
• M13: 10,445,223 km (0.064 R)
• M14: 12,993,173 km (0.087 R)
• M15: 13,812,671 km (0.046 R)
• M16: 14,615,114 km (0.112 R)
• M17: 17,670,351 km (0.077 R)
• M18: 18,376,752 km (0.057 R)
• M19: 19,908,634 km (0.071 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 14,992 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit