🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.8

Radius: 11.1

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.7 AU - 0.92 AU

Year: 494 Days

Day: 10.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,409,821 km

• M1: 140,024 km (0.113 R)
• M2: 579,542 km (0.111 R)
• M3: 974,032 km (0.116 R)
• M4: 1,355,506 km (0.106 R)
• M5: 1,705,416 km (0.095 R)
• M6: 2,142,092 km (0.107 R)
• M7: 2,537,180 km (0.055 R)
• M8: 3,099,817 km (0.116 R)
• M9: 4,267,279 km (0.102 R)
• M10: 4,974,129 km (0.095 R)
• M11: 5,331,967 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.1

Radius: 12.9

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.73 AU - 1.19 AU

Year: 638 Days

Day: 13.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,409,821 km

• M1: 160,519 km (0.032 R)
• M2: 648,656 km (0.086 R)
• M3: 1,091,616 km (0.053 R)
• M4: 2,202,829 km (0.047 R)
• M5: 3,086,952 km (0.107 R)
• M6: 3,989,626 km (0.103 R)
• M7: 4,698,271 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.9

Radius: 10.9

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.98 AU - 1 AU

Year: 668 Days

Day: 6.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,409,821 km

• M1: 175,628 km (0.064 R)
• M2: 592,557 km (0.109 R)
• M3: 967,749 km (0.112 R)
• M4: 1,419,235 km (0.043 R)
• M5: 1,875,957 km (0.118 R)
• M6: 2,238,882 km (0.057 R)
• M7: 2,971,163 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.1

Radius: 13

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.11 AU - 1.21 AU

Year: 847 Days

Day: 9.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 59,409,821 km

• M1: 203,453 km (0.105 R)
• M2: 739,313 km (0.094 R)
• M3: 1,316,312 km (0.075 R)
• M4: 1,851,722 km (0.025 R)
• M5: 2,864,051 km (0.117 R)
• M6: 3,435,665 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.7

Radius: 8.6

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.64 AU - 1.96 AU

Year: 1638 Days

Day: 10.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,409,821 km

• M1: 107,411 km (0.069 R)
• M2: 431,889 km (0.11 R)
• M3: 1,123,929 km (0.079 R)
• M4: 2,966,675 km (0.043 R)
• M5: 3,630,890 km (0.119 R)
• M6: 4,098,383 km (0.103 R)
• M7: 5,095,154 km (0.057 R)
• M8: 6,680,592 km (0.103 R)
• M9: 10,188,363 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.5

Radius: 12

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.54 AU - 2.22 AU

Year: 1748 Days

Day: 13.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,409,821 km

• M1: 149,299 km (0.087 R)
• M2: 561,740 km (0.118 R)
• M3: 1,149,360 km (0.099 R)
• M4: 1,562,550 km (0.117 R)
• M5: 1,972,897 km (0.112 R)
• M6: 3,045,214 km (0.114 R)
• M7: 3,555,193 km (0.095 R)
• M8: 4,087,762 km (0.111 R)
• M9: 4,957,524 km (0.114 R)
• M10: 5,354,706 km (0.054 R)
• M11: 6,258,726 km (0.031 R)
• M12: 7,362,758 km (0.109 R)
• M13: 8,149,942 km (0.1 R)
• M14: 9,525,345 km (0.072 R)
• M15: 10,268,398 km (0.028 R)
• M16: 11,386,941 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.3

Radius: 12.7

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.66 AU - 2.18 AU

Year: 1804 Days

Day: 7.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,409,821 km

• M1: 157,975 km (0.059 R)
• M2: 767,437 km (0.099 R)
• M3: 1,443,320 km (0.098 R)
• M4: 1,905,727 km (0.088 R)
• M5: 3,230,416 km (0.119 R)
• M6: 3,753,261 km (0.082 R)
• M7: 4,238,108 km (0.113 R)
• M8: 5,670,507 km (0.086 R)
• M9: 6,460,384 km (0.087 R)
• M10: 7,626,051 km (0.099 R)
• M11: 9,403,273 km (0.05 R)
• M12: 11,553,144 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.6

Radius: 3.7

Gravity: 55.49 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.33 AU - 8.07 AU

Year: 13104 Days

Day: 22.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,409,821 km

• M1: 46,076 km (0.072 R)
• M2: 164,707 km (0.119 R)
• M3: 332,556 km (0.101 R)
• M4: 713,283 km (0.115 R)
• M5: 836,252 km (0.054 R)
• M6: 1,617,003 km (0.09 R)
• M7: 2,238,134 km (0.095 R)
• M8: 2,569,493 km (0.083 R)
• M9: 2,769,805 km (0.09 R)
• M10: 3,102,061 km (0.088 R)
• M11: 3,460,199 km (0.1 R)
• M12: 3,845,264 km (0.109 R)
• M13: 4,227,935 km (0.104 R)
• M14: 4,932,391 km (0.104 R)
• M15: 6,776,634 km (0.103 R)
• M16: 8,393,039 km (0.089 R)
• M17: 9,761,859 km (0.112 R)
• M18: 10,249,399 km (0.11 R)
• M19: 10,471,253 km (0.11 R)
• M20: 12,300,236 km (0.082 R)
• M21: 12,613,793 km (0.03 R)
• M22: 13,586,778 km (0.063 R)
• M23: 23,617,315 km (0.112 R)
• M24: 25,492,973 km (0.112 R)
• M25: 28,217,300 km (0.096 R)
• M26: 34,235,473 km (0.103 R)
• M27: 43,322,197 km (0.112 R)
• M28: 45,373,333 km (0.096 R)
• M29: 46,271,968 km (0.091 R)
• M30: 48,725,822 km (0.096 R)
• M31: 57,821,372 km (0.065 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 17,870 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit