🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257

Radius: 13.5

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.57 AU - 0.59 AU

Year: 295 Days

Day: 13.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,645,294 km

• M1: 168,148 km (0.088 R)
• M2: 587,920 km (0.09 R)
• M3: 1,027,289 km (0.106 R)
• M4: 1,472,342 km (0.1 R)
• M5: 1,983,219 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.5

Radius: 11.3

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.68 AU - 0.8 AU

Year: 424 Days

Day: 11.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,645,294 km

• M1: 140,622 km (0.066 R)
• M2: 559,646 km (0.03 R)
• M3: 1,320,650 km (0.071 R)
• M4: 1,726,060 km (0.1 R)
• M5: 2,090,780 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.5

Radius: 9.3

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.81 AU - 1.01 AU

Year: 579 Days

Day: 9.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,645,294 km

• M1: 120,127 km (0.058 R)
• M2: 420,071 km (0.115 R)
• M3: 714,031 km (0.108 R)
• M4: 1,127,370 km (0.11 R)
• M5: 1,417,141 km (0.068 R)
• M6: 2,124,739 km (0.061 R)
• M7: 2,542,715 km (0.071 R)
• M8: 3,151,279 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.1

Radius: 9.5

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.06 AU - 1.12 AU

Year: 759 Days

Day: 13.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,645,294 km

• M1: 123,418 km (0.056 R)
• M2: 424,708 km (0.106 R)
• M3: 785,389 km (0.078 R)
• M4: 1,195,137 km (0.112 R)
• M5: 1,861,746 km (0.11 R)
• M6: 2,593,578 km (0.09 R)
• M7: 3,083,960 km (0.088 R)
• M8: 4,432,136 km (0.075 R)
• M9: 5,172,346 km (0.112 R)
• M10: 5,931,107 km (0.072 R)
• M11: 6,455,447 km (0.066 R)
• M12: 6,807,152 km (0.072 R)
• M13: 9,302,893 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.9

Radius: 11.3

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.3 AU - 1.38 AU

Year: 1034 Days

Day: 5.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,645,294 km

• M1: 140,622 km (0.106 R)
• M2: 552,315 km (0.097 R)
• M3: 979,567 km (0.108 R)
• M4: 1,638,994 km (0.091 R)
• M5: 2,281,368 km (0.117 R)
• M6: 2,772,198 km (0.11 R)
• M7: 3,219,645 km (0.109 R)
• M8: 3,606,805 km (0.047 R)
• M9: 4,413,885 km (0.088 R)
• M10: 5,215,281 km (0.114 R)
• M11: 5,845,088 km (0.12 R)
• M12: 6,667,278 km (0.025 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.9

Radius: 13.4

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.34 AU - 1.56 AU

Year: 1164 Days

Day: 10.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 16,645,294 km

• M1: 185,501 km (0.106 R)
• M2: 611,706 km (0.057 R)
• M3: 1,092,663 km (0.106 R)
• M4: 1,716,785 km (0.107 R)
• M5: 2,202,230 km (0.093 R)
• M6: 2,881,105 km (0.066 R)
• M7: 4,192,181 km (0.101 R)
• M8: 4,805,682 km (0.069 R)
• M9: 5,599,897 km (0.114 R)
• M10: 6,279,221 km (0.088 R)
• M11: 6,847,543 km (0.07 R)
• M12: 8,088,009 km (0.06 R)
• M13: 9,561,099 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.8

Radius: 13.7

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.96 AU - 2.58 AU

Year: 2281 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 16,645,294 km

• M1: 190,887 km (0.093 R)
• M2: 707,897 km (0.106 R)
• M3: 1,170,603 km (0.079 R)
• M4: 1,731,147 km (0.103 R)
• M5: 2,614,223 km (0.059 R)
• M6: 3,134,075 km (0.11 R)
• M7: 3,591,994 km (0.106 R)
• M8: 4,115,138 km (0.052 R)
• M9: 5,077,352 km (0.052 R)
• M10: 6,157,748 km (0.039 R)
• M11: 7,355,727 km (0.059 R)
• M12: 9,653,700 km (0.098 R)
• M13: 10,135,256 km (0.092 R)
• M14: 11,348,494 km (0.079 R)
• M15: 11,969,475 km (0.113 R)
• M16: 12,744,392 km (0.111 R)
• M17: 13,969,150 km (0.114 R)
• M18: 14,877,059 km (0.079 R)
• M19: 18,059,605 km (0.066 R)
• M20: 18,735,338 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.9

Radius: 14.4

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.42 AU - 2.92 AU

Year: 2909 Days

Day: 11.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 16,645,294 km

• M1: 179,966 km (0.114 R)
• M2: 698,622 km (0.107 R)
• M3: 1,506,600 km (0.043 R)
• M4: 2,312,334 km (0.081 R)
• M5: 4,495,566 km (0.085 R)
• M6: 5,243,256 km (0.104 R)
• M7: 5,875,606 km (0.116 R)
• M8: 6,350,729 km (0.072 R)
• M9: 9,158,681 km (0.102 R)
• M10: 13,812,072 km (0.08 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 10,643 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit