🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.1

Radius: 13.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.67 AU - 1.03 AU

Year: 514 Days

Day: 14.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,900,411 km

• M1: 164,109 km (0.102 R)
• M2: 644,318 km (0.118 R)
• M3: 1,099,096 km (0.065 R)
• M4: 1,565,841 km (0.107 R)
• M5: 2,422,738 km (0.078 R)
• M6: 3,114,628 km (0.116 R)
• M7: 3,598,577 km (0.096 R)
• M8: 5,623,833 km (0.098 R)
• M9: 6,385,136 km (0.062 R)
• M10: 6,902,745 km (0.028 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.5

Radius: 9.3

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.03 AU - 1.15 AU

Year: 747 Days

Day: 7.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,900,411 km

• M1: 117,584 km (0.087 R)
• M2: 430,393 km (0.11 R)
• M3: 844,630 km (0.057 R)
• M4: 1,368,821 km (0.104 R)
• M5: 1,873,863 km (0.038 R)
• M6: 2,282,864 km (0.083 R)
• M7: 2,623,049 km (0.08 R)
• M8: 2,996,894 km (0.036 R)
• M9: 3,368,495 km (0.075 R)
• M10: 3,907,496 km (0.099 R)
• M11: 4,442,309 km (0.077 R)
• M12: 4,943,462 km (0.096 R)
• M13: 5,326,582 km (0.082 R)
• M14: 5,640,139 km (0.076 R)
• M15: 6,040,313 km (0.111 R)
• M16: 6,343,099 km (0.037 R)
• M17: 6,776,036 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.9

Radius: 8.8

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.18 AU - 1.42 AU

Year: 972 Days

Day: 12.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,900,411 km

• M1: 109,805 km (0.05 R)
• M2: 440,416 km (0.081 R)
• M3: 925,412 km (0.107 R)
• M4: 2,241,275 km (0.051 R)
• M5: 2,583,705 km (0.118 R)
• M6: 2,914,615 km (0.087 R)
• M7: 3,798,888 km (0.072 R)
• M8: 5,552,475 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.3

Radius: 11.9

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.42 AU - 1.76 AU

Year: 1315 Days

Day: 5.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,900,411 km

• M1: 148,999 km (0.096 R)
• M2: 702,063 km (0.061 R)
• M3: 1,089,820 km (0.115 R)
• M4: 1,475,185 km (0.084 R)
• M5: 1,869,525 km (0.085 R)
• M6: 2,249,204 km (0.109 R)
• M7: 2,659,701 km (0.085 R)
• M8: 3,168,184 km (0.117 R)
• M9: 4,849,365 km (0.09 R)
• M10: 5,280,954 km (0.115 R)
• M11: 6,014,134 km (0.112 R)
• M12: 6,977,993 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.4

Radius: 13.5

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.69 AU - 2.93 AU

Year: 3090 Days

Day: 7.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,900,411 km

• M1: 167,849 km (0.109 R)
• M2: 794,514 km (0.094 R)
• M3: 1,582,446 km (0.11 R)
• M4: 2,042,310 km (0.117 R)
• M5: 2,542,715 km (0.097 R)
• M6: 3,878,175 km (0.105 R)
• M7: 4,360,778 km (0.095 R)
• M8: 5,344,085 km (0.038 R)
• M9: 6,470,258 km (0.115 R)
• M10: 7,616,626 km (0.092 R)
• M11: 10,117,304 km (0.106 R)
• M12: 11,038,079 km (0.092 R)
• M13: 12,267,025 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.9

Radius: 11.4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.69 AU - 3.51 AU

Year: 3581 Days

Day: 14.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,900,411 km

• M1: 141,819 km (0.113 R)
• M2: 506,239 km (0.103 R)
• M3: 890,855 km (0.088 R)
• M4: 1,509,443 km (0.093 R)
• M5: 2,539,274 km (0.072 R)
• M6: 3,139,910 km (0.082 R)
• M7: 4,227,337 km (0.117 R)
• M8: 6,056,021 km (0.05 R)
• M9: 6,986,819 km (0.06 R)
• M10: 7,577,431 km (0.111 R)
• M11: 8,297,595 km (0.088 R)
• M12: 9,131,454 km (0.094 R)
• M13: 9,947,062 km (0.083 R)
• M14: 15,253,298 km (0.11 R)
• M15: 16,197,410 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.4

Radius: 7.1

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.25 AU - 7.93 AU

Year: 11098 Days

Day: 15.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,900,411 km

• M1: 114,143 km (0.068 R)
• M2: 363,672 km (0.04 R)
• M3: 670,348 km (0.06 R)
• M4: 1,022,501 km (0.058 R)
• M5: 1,481,019 km (0.12 R)
• M6: 1,728,753 km (0.101 R)
• M7: 1,988,006 km (0.067 R)
• M8: 3,230,267 km (0.07 R)
• M9: 4,487,936 km (0.099 R)
• M10: 5,974,789 km (0.1 R)
• M11: 10,517,030 km (0.066 R)
• M12: 12,639,374 km (0.066 R)
• M13: 25,764,942 km (0.093 R)
• M14: 26,870,470 km (0.1 R)
• M15: 27,529,898 km (0.05 R)
• M16: 37,574,946 km (0.083 R)
• M17: 37,926,651 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.9

Radius: 7.4

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.35 AU - 10.35 AU

Year: 15828 Days

Day: 18.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,900,411 km

• M1: 92,751 km (0.1 R)
• M2: 401,820 km (0.058 R)
• M3: 1,576,163 km (0.108 R)
• M4: 2,245,913 km (0.085 R)
• M5: 2,507,410 km (0.119 R)
• M6: 2,857,170 km (0.06 R)
• M7: 3,264,076 km (0.03 R)
• M8: 4,018,199 km (0.029 R)
• M9: 5,573,418 km (0.073 R)
• M10: 7,405,095 km (0.107 R)
• M11: 7,805,568 km (0.119 R)
• M12: 8,361,773 km (0.118 R)
• M13: 9,657,590 km (0.118 R)
• M14: 10,741,426 km (0.085 R)
• M15: 11,784,423 km (0.1 R)
• M16: 13,408,008 km (0.093 R)
• M17: 14,823,952 km (0.103 R)
• M18: 19,920,303 km (0.106 R)
• M19: 21,668,952 km (0.111 R)
• M20: 24,188,480 km (0.107 R)
• M21: 26,176,187 km (0.091 R)
• M22: 27,314,626 km (0.065 R)
• M23: 27,630,727 km (0.103 R)
• M24: 32,552,347 km (0.115 R)
• M25: 34,847,029 km (0.096 R)
• M26: 35,094,763 km (0.037 R)
• M27: 36,097,218 km (0.092 R)
• M28: 36,861,364 km (0.098 R)
• M29: 40,026,406 km (0.108 R)
• M30: 40,845,155 km (0.068 R)
• M31: 42,234,321 km (0.061 R)
• M32: 42,657,234 km (0.1 R)
• M33: 48,722,381 km (0.115 R)
• M34: 50,918,178 km (0.046 R)
• M35: 51,557,560 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 10,860 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit