🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.63 AU - 0.65 AU

Year: 336 Days

Day: 36.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 12,885,968 km

• M1: 829,819 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.7

Radius: 8.2

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.69 AU - 1.03 AU

Year: 523 Days

Day: 5.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 12,885,968 km

• M1: 102,026 km (0.072 R)
• M2: 432,787 km (0.11 R)
• M3: 1,045,091 km (0.119 R)
• M4: 1,338,153 km (0.12 R)
• M5: 1,870,422 km (0.034 R)
• M6: 2,298,870 km (0.095 R)
• M7: 2,813,487 km (0.086 R)
• M8: 3,242,085 km (0.089 R)
• M9: 3,686,989 km (0.12 R)
• M10: 4,422,711 km (0.062 R)
• M11: 4,970,688 km (0.118 R)
• M12: 5,458,378 km (0.087 R)
• M13: 5,831,175 km (0.042 R)
• M14: 6,164,031 km (0.086 R)
• M15: 6,627,634 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.8

Radius: 10.5

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.22 AU - 1.74 AU

Year: 1181 Days

Day: 11.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 12,885,968 km

• M1: 134,488 km (0.077 R)
• M2: 520,002 km (0.1 R)
• M3: 896,390 km (0.115 R)
• M4: 1,444,816 km (0.072 R)
• M5: 1,788,293 km (0.042 R)
• M6: 2,300,815 km (0.059 R)
• M7: 2,786,859 km (0.106 R)
• M8: 3,313,294 km (0.092 R)
• M9: 4,332,354 km (0.075 R)
• M10: 4,686,004 km (0.099 R)
• M11: 5,262,404 km (0.076 R)
• M12: 5,824,892 km (0.093 R)
• M13: 7,658,813 km (0.099 R)
• M14: 8,433,580 km (0.083 R)
• M15: 9,342,537 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.6

Radius: 12.9

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.39 AU - 2.07 AU

Year: 1493 Days

Day: 14.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 12,885,968 km

• M1: 160,369 km (0.116 R)
• M2: 584,778 km (0.074 R)
• M3: 1,755,980 km (0.074 R)
• M4: 2,168,720 km (0.074 R)
• M5: 2,937,653 km (0.077 R)
• M6: 3,957,911 km (0.11 R)
• M7: 4,963,059 km (0.051 R)
• M8: 5,390,909 km (0.072 R)
• M9: 6,515,586 km (0.114 R)
• M10: 7,215,255 km (0.058 R)
• M11: 7,790,908 km (0.079 R)
• M12: 8,898,979 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.8

Radius: 12.1

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.8 AU - 3.66 AU

Year: 3808 Days

Day: 5.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 12,885,968 km

• M1: 151,692 km (0.028 R)
• M2: 1,214,436 km (0.108 R)
• M3: 1,681,779 km (0.08 R)
• M4: 2,284,060 km (0.108 R)
• M5: 2,661,496 km (0.064 R)
• M6: 3,118,218 km (0.106 R)
• M7: 3,731,120 km (0.091 R)
• M8: 4,446,797 km (0.116 R)
• M9: 12,211,375 km (0.06 R)
• M10: 13,941,325 km (0.099 R)
• M11: 14,946,174 km (0.116 R)
• M12: 15,549,502 km (0.11 R)
• M13: 21,114,243 km (0.107 R)
• M14: 21,526,685 km (0.085 R)
• M15: 25,406,805 km (0.086 R)
• M16: 26,266,843 km (0.115 R)
• M17: 26,664,175 km (0.037 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.7

Radius: 10.2

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.98 AU - 4.76 AU

Year: 4994 Days

Day: 14.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 12,885,968 km

• M1: 131,796 km (0.077 R)
• M2: 534,214 km (0.104 R)
• M3: 996,471 km (0.112 R)
• M4: 1,619,696 km (0.051 R)
• M5: 2,027,350 km (0.044 R)
• M6: 2,620,356 km (0.101 R)
• M7: 4,465,197 km (0.082 R)
• M8: 4,871,655 km (0.027 R)
• M9: 5,937,091 km (0.06 R)
• M10: 6,849,638 km (0.099 R)
• M11: 7,219,294 km (0.082 R)
• M12: 7,852,991 km (0.106 R)
• M13: 8,258,251 km (0.111 R)
• M14: 8,600,232 km (0.057 R)
• M15: 9,394,148 km (0.109 R)
• M16: 10,764,913 km (0.048 R)
• M17: 15,273,643 km (0.09 R)
• M18: 16,377,227 km (0.119 R)
• M19: 18,419,238 km (0.116 R)
• M20: 18,742,818 km (0.115 R)
• M21: 19,070,138 km (0.111 R)
• M22: 20,349,050 km (0.053 R)
• M23: 21,684,361 km (0.082 R)
• M24: 24,999,300 km (0.088 R)
• M25: 26,529,836 km (0.079 R)
• M26: 26,859,998 km (0.085 R)
• M27: 29,072,401 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.8

Radius: 12.5

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.85 AU - 6.31 AU

Year: 8647 Days

Day: 9.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 12,885,968 km

• M1: 155,432 km (0.114 R)
• M2: 568,771 km (0.099 R)
• M3: 1,146,518 km (0.117 R)
• M4: 1,966,165 km (0.067 R)
• M5: 2,678,101 km (0.113 R)
• M6: 5,810,232 km (0.118 R)
• M7: 6,946,128 km (0.077 R)
• M8: 7,673,922 km (0.1 R)
• M9: 8,683,857 km (0.112 R)
• M10: 10,004,058 km (0.098 R)
• M11: 11,243,477 km (0.049 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 19,904 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit