🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.1

Radius: 8.7

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.62 AU - 0.8 AU

Year: 386 Days

Day: 6.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,707,530 km

• M1: 108,309 km (0.101 R)
• M2: 468,840 km (0.106 R)
• M3: 863,479 km (0.105 R)
• M4: 1,157,738 km (0.097 R)
• M5: 1,571,675 km (0.102 R)
• M6: 1,938,788 km (0.087 R)
• M7: 2,404,935 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.7

Radius: 10.6

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.99 AU - 1.21 AU

Year: 745 Days

Day: 10.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,707,530 km

• M1: 131,945 km (0.057 R)
• M2: 498,610 km (0.062 R)
• M3: 829,221 km (0.06 R)
• M4: 1,161,478 km (0.077 R)
• M5: 1,501,215 km (0.039 R)
• M6: 1,839,007 km (0.117 R)
• M7: 2,447,421 km (0.041 R)
• M8: 2,892,774 km (0.09 R)
• M9: 3,226,078 km (0.074 R)
• M10: 3,574,192 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.7

Radius: 13

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.1 AU - 1.14 AU

Year: 765 Days

Day: 8.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,707,530 km

• M1: 161,715 km (0.058 R)
• M2: 580,290 km (0.117 R)
• M3: 1,018,612 km (0.062 R)
• M4: 1,453,194 km (0.106 R)
• M5: 1,898,696 km (0.061 R)
• M6: 2,347,490 km (0.032 R)
• M7: 3,085,905 km (0.111 R)
• M8: 3,798,739 km (0.118 R)
• M9: 4,548,523 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.5

Radius: 12.6

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.1 AU - 1.48 AU

Year: 946 Days

Day: 8.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,707,530 km

• M1: 156,629 km (0.105 R)
• M2: 549,323 km (0.106 R)
• M3: 1,080,994 km (0.079 R)
• M4: 1,575,266 km (0.096 R)
• M5: 2,510,851 km (0.116 R)
• M6: 3,144,098 km (0.034 R)
• M7: 3,648,991 km (0.057 R)
• M8: 4,157,774 km (0.037 R)
• M9: 5,498,320 km (0.088 R)
• M10: 6,257,380 km (0.109 R)
• M11: 7,327,453 km (0.075 R)
• M12: 9,562,296 km (0.057 R)
• M13: 10,723,923 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.2

Radius: 12

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.49 AU - 2.31 AU

Year: 1691 Days

Day: 11.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,707,530 km

• M1: 149,448 km (0.116 R)
• M2: 594,053 km (0.076 R)
• M3: 1,078,451 km (0.093 R)
• M4: 1,503,459 km (0.107 R)
• M5: 2,124,140 km (0.099 R)
• M6: 2,536,432 km (0.116 R)
• M7: 4,159,419 km (0.087 R)
• M8: 4,647,108 km (0.104 R)
• M9: 5,251,035 km (0.09 R)
• M10: 5,758,920 km (0.072 R)
• M11: 6,411,466 km (0.097 R)
• M12: 7,357,522 km (0.081 R)
• M13: 8,313,453 km (0.103 R)
• M14: 8,835,549 km (0.045 R)
• M15: 10,252,840 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.8

Radius: 14.8

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.9 AU - 2.52 AU

Year: 2121 Days

Day: 9.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,707,530 km

• M1: 184,305 km (0.072 R)
• M2: 818,749 km (0.109 R)
• M3: 1,466,658 km (0.105 R)
• M4: 2,085,095 km (0.106 R)
• M5: 3,186,584 km (0.111 R)
• M6: 4,162,860 km (0.119 R)
• M7: 5,493,982 km (0.099 R)
• M8: 6,258,577 km (0.115 R)
• M9: 7,009,259 km (0.078 R)
• M10: 8,062,128 km (0.107 R)
• M11: 9,977,131 km (0.067 R)
• M12: 12,465,991 km (0.057 R)
• M13: 13,876,848 km (0.081 R)
• M14: 15,872,035 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.2

Radius: 10.5

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.9 AU - 3.54 AU

Year: 3731 Days

Day: 13.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,707,530 km

• M1: 130,599 km (0.065 R)
• M2: 737,218 km (0.12 R)
• M3: 1,325,288 km (0.053 R)
• M4: 2,177,846 km (0.088 R)
• M5: 2,708,170 km (0.077 R)
• M6: 3,040,876 km (0.083 R)
• M7: 3,401,108 km (0.088 R)
• M8: 4,370,352 km (0.067 R)
• M9: 4,831,114 km (0.084 R)
• M10: 5,244,153 km (0.064 R)
• M11: 5,793,477 km (0.112 R)
• M12: 6,350,579 km (0.067 R)
• M13: 7,236,498 km (0.098 R)
• M14: 7,743,784 km (0.108 R)
• M15: 9,810,180 km (0.092 R)
• M16: 12,126,104 km (0.026 R)
• M17: 12,891,597 km (0.114 R)
• M18: 13,286,236 km (0.07 R)
• M19: 16,164,798 km (0.094 R)
• M20: 17,749,638 km (0.104 R)
• M21: 18,610,873 km (0.119 R)
• M22: 19,435,456 km (0.095 R)
• M23: 20,086,057 km (0.116 R)
• M24: 21,293,761 km (0.059 R)
• M25: 22,549,336 km (0.083 R)
• M26: 23,267,854 km (0.099 R)
• M27: 25,981,261 km (0.117 R)
• M28: 26,374,254 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775

Radius: 8

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.9 AU - 7.96 AU

Year: 11779 Days

Day: 19.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,707,530 km

• M1: 116,238 km (0.113 R)
• M2: 518,207 km (0.102 R)
• M3: 868,266 km (0.094 R)
• M4: 1,708,408 km (0.073 R)
• M5: 2,545,557 km (0.105 R)
• M6: 3,102,959 km (0.061 R)
• M7: 3,631,788 km (0.087 R)
• M8: 3,960,155 km (0.044 R)
• M9: 4,645,313 km (0.066 R)
• M10: 5,872,913 km (0.077 R)
• M11: 6,601,754 km (0.108 R)
• M12: 12,231,272 km (0.075 R)
• M13: 13,352,508 km (0.114 R)
• M14: 14,070,428 km (0.076 R)
• M15: 19,254,892 km (0.053 R)
• M16: 19,667,782 km (0.111 R)
• M17: 22,089,472 km (0.113 R)
• M18: 23,093,124 km (0.077 R)
• M19: 24,031,402 km (0.101 R)
• M20: 26,285,991 km (0.109 R)
• M21: 26,794,026 km (0.109 R)
• M22: 27,102,048 km (0.093 R)
• M23: 28,999,996 km (0.041 R)
• M24: 30,536,217 km (0.108 R)
• M25: 36,844,011 km (0.116 R)
• M26: 53,892,633 km (0.029 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: 519 - 18,356 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit