🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.53 AU - 0.71 AU

Year: 310 Days

Day: 26.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,254,718 km

• M1: 48,021 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.4

Radius: 9.1

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.68 AU - 0.88 AU

Year: 438 Days

Day: 12.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,254,718 km

• M1: 113,844 km (0.09 R)
• M2: 577,597 km (0.081 R)
• M3: 861,684 km (0.081 R)
• M4: 1,314,965 km (0.095 R)
• M5: 2,011,792 km (0.051 R)
• M6: 2,401,046 km (0.104 R)
• M7: 3,320,474 km (0.052 R)
• M8: 4,677,925 km (0.117 R)
• M9: 4,966,949 km (0.074 R)
• M10: 5,284,096 km (0.031 R)
• M11: 5,648,666 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.3

Radius: 11.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.23 AU - 1.53 AU

Year: 1031 Days

Day: 8.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,254,718 km

• M1: 138,228 km (0.086 R)
• M2: 521,947 km (0.099 R)
• M3: 901,477 km (0.117 R)
• M4: 1,363,734 km (0.1 R)
• M5: 2,781,772 km (0.058 R)
• M6: 3,953,573 km (0.081 R)
• M7: 4,338,488 km (0.105 R)
• M8: 4,839,641 km (0.069 R)
• M9: 5,346,478 km (0.06 R)
• M10: 5,853,316 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.8

Radius: 13.8

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.31 AU - 7.15 AU

Year: 8721 Days

Day: 13.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,254,718 km

• M1: 171,589 km (0.088 R)
• M2: 637,885 km (0.082 R)
• M3: 1,094,458 km (0.088 R)
• M4: 2,126,085 km (0.098 R)
• M5: 2,761,427 km (0.1 R)
• M6: 3,926,645 km (0.076 R)
• M7: 5,065,384 km (0.079 R)
• M8: 6,553,883 km (0.075 R)
• M9: 7,989,873 km (0.092 R)
• M10: 9,131,304 km (0.089 R)
• M11: 11,271,452 km (0.076 R)
• M12: 12,540,939 km (0.065 R)
• M13: 14,560,211 km (0.113 R)
• M14: 15,425,784 km (0.089 R)
• M15: 22,070,922 km (0.097 R)
• M16: 29,232,322 km (0.089 R)
• M17: 31,927,028 km (0.082 R)
• M18: 35,110,919 km (0.036 R)
• M19: 35,772,292 km (0.103 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 886.8

Radius: 6.3

Gravity: 22.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.05 AU - 8.21 AU

Year: 13400 Days

Day: 21.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,254,718 km

• M1: 78,389 km (0.085 R)
• M2: 454,478 km (0.11 R)
• M3: 717,471 km (0.075 R)
• M4: 999,613 km (0.071 R)
• M5: 1,232,088 km (0.073 R)
• M6: 1,756,728 km (0.079 R)
• M7: 2,098,559 km (0.106 R)
• M8: 2,548,998 km (0.071 R)
• M9: 3,316,884 km (0.087 R)
• M10: 3,697,461 km (0.038 R)
• M11: 5,334,660 km (0.092 R)
• M12: 8,491,026 km (0.119 R)
• M13: 10,572,381 km (0.095 R)
• M14: 12,198,061 km (0.088 R)
• M15: 12,452,228 km (0.107 R)
• M16: 13,776,917 km (0.08 R)
• M17: 15,047,152 km (0.032 R)
• M18: 18,063,644 km (0.107 R)
• M19: 19,323,856 km (0.093 R)
• M20: 22,112,061 km (0.066 R)
• M21: 25,260,049 km (0.098 R)
• M22: 26,513,679 km (0.116 R)
• M23: 29,599,136 km (0.108 R)
• M24: 30,058,551 km (0.095 R)
• M25: 34,918,088 km (0.091 R)
• M26: 50,434,828 km (0.078 R)
• M27: 51,254,923 km (0.077 R)
• M28: 51,917,343 km (0.062 R)
• M29: 53,090,489 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.6

Radius: 3.4

Gravity: 67.79 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.35 AU - 12.25 AU

Year: 21018 Days

Day: 24.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,254,718 km

• M1: 42,785 km (0.118 R)
• M2: 249,080 km (0.054 R)
• M3: 554,410 km (0.047 R)
• M4: 761,004 km (0.113 R)
• M5: 1,572,274 km (0.098 R)
• M6: 2,026,752 km (0.113 R)
• M7: 2,969,967 km (0.046 R)
• M8: 5,109,066 km (0.084 R)
• M9: 10,013,633 km (0.029 R)
• M10: 11,535,492 km (0.089 R)
• M11: 16,417,020 km (0.092 R)
• M12: 20,894,335 km (0.059 R)
• M13: 31,242,169 km (0.062 R)
• M14: 37,574,946 km (0.114 R)
• M15: 38,757,068 km (0.089 R)
• M16: 43,249,642 km (0.079 R)
• M17: 48,769,953 km (0.103 R)
• M18: 51,607,675 km (0.108 R)
• M19: 61,791,101 km (0.068 R)
• M20: 65,957,402 km (0.097 R)
• M21: 66,383,906 km (0.103 R)
• M22: 72,778,616 km (0.088 R)
• M23: 79,330,404 km (0.054 R)
• M24: 80,297,405 km (0.066 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: 334 - 17,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit