🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.48 AU - 0.62 AU

Year: 154 Days

Day: 31.5 Hours

Environment

Temp: 207 °C

Axial Tilt: 21.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 96,974,123 km

• M1: 45,328 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.92 AU - 1.04 AU

Year: 365 Days

Day: 29.4 Hours

Environment

Temp: 12 °C

Axial Tilt: 25.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.19 AU - 1.39 AU

Year: 552 Days

Day: 26.5 Hours

Environment

Temp: -22 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 96,974,123 km

• M1: 19,597 km (0.09 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.52 AU - 1.98 AU

Year: 872 Days

Day: 43.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.1

Radius: 8.3

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.2 AU - 6.88 AU

Year: 5592 Days

Day: 6 Hours

Environment

Temp: -159 °C

Axial Tilt: 156.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 96,974,123 km

• M1: 104,419 km (0.084 R)
• M2: 478,564 km (0.06 R)
• M3: 927,956 km (0.03 R)
• M4: 1,273,676 km (0.118 R)
• M5: 1,691,503 km (0.093 R)
• M6: 3,028,758 km (0.084 R)
• M7: 3,868,152 km (0.062 R)
• M8: 4,171,985 km (0.075 R)
• M9: 5,550,829 km (0.076 R)
• M10: 6,185,722 km (0.095 R)
• M11: 6,734,447 km (0.069 R)
• M12: 7,421,102 km (0.107 R)
• M13: 7,744,981 km (0.039 R)
• M14: 8,229,528 km (0.107 R)
• M15: 9,341,639 km (0.092 R)
• M16: 10,914,661 km (0.119 R)
• M17: 13,067,823 km (0.07 R)
• M18: 19,523,569 km (0.083 R)
• M19: 20,915,278 km (0.11 R)
• M20: 24,602,267 km (0.094 R)
• M21: 27,230,852 km (0.117 R)
• M22: 28,263,077 km (0.068 R)
• M23: 29,054,300 km (0.066 R)
• M24: 29,860,034 km (0.101 R)
• M25: 30,680,728 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.3

Radius: 12

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.7 AU - 7.56 AU

Year: 5718 Days

Day: 5.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 96,974,123 km

• M1: 149,747 km (0.083 R)
• M2: 847,023 km (0.094 R)
• M3: 1,327,232 km (0.098 R)
• M4: 1,904,381 km (0.086 R)
• M5: 2,829,494 km (0.116 R)
• M6: 4,135,484 km (0.108 R)
• M7: 5,111,460 km (0.109 R)
• M8: 5,679,633 km (0.071 R)
• M9: 6,511,995 km (0.063 R)
• M10: 7,271,205 km (0.084 R)
• M11: 8,055,995 km (0.114 R)
• M12: 10,132,264 km (0.062 R)
• M13: 11,939,705 km (0.111 R)
• M14: 12,853,000 km (0.079 R)
• M15: 13,952,993 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.8

Radius: 12

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 5.18 AU - 7.54 AU

Year: 6042 Days

Day: 13.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 96,974,123 km

• M1: 149,598 km (0.104 R)
• M2: 527,931 km (0.049 R)
• M3: 1,213,688 km (0.099 R)
• M4: 1,777,971 km (0.092 R)
• M5: 2,154,808 km (0.101 R)
• M6: 2,604,200 km (0.097 R)
• M7: 3,158,011 km (0.074 R)
• M8: 3,862,168 km (0.054 R)
• M9: 5,038,307 km (0.083 R)
• M10: 6,133,812 km (0.041 R)
• M11: 7,082,711 km (0.098 R)
• M12: 9,951,550 km (0.056 R)
• M13: 10,713,751 km (0.09 R)
• M14: 11,720,844 km (0.095 R)
• M15: 12,462,699 km (0.047 R)
• M16: 14,694,700 km (0.075 R)
• M17: 15,937,260 km (0.06 R)
• M18: 16,453,522 km (0.085 R)
• M19: 17,047,425 km (0.088 R)
• M20: 17,519,407 km (0.083 R)
• M21: 19,567,850 km (0.086 R)
• M22: 21,224,946 km (0.096 R)
• M23: 23,967,224 km (0.103 R)
• M24: 24,474,511 km (0.088 R)
• M25: 25,951,042 km (0.08 R)
• M26: 26,486,153 km (0.087 R)
• M27: 29,176,671 km (0.115 R)
• M28: 30,341,440 km (0.03 R)
• M29: 31,739,283 km (0.09 R)
• M30: 35,639,898 km (0.042 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.3

Radius: 9.2

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.99 AU - 10.95 AU

Year: 11860 Days

Day: 13.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 96,974,123 km

• M1: 114,442 km (0.095 R)
• M2: 466,297 km (0.111 R)
• M3: 3,535,446 km (0.079 R)
• M4: 4,771,723 km (0.099 R)
• M5: 5,063,439 km (0.061 R)
• M6: 8,628,207 km (0.047 R)
• M7: 12,708,339 km (0.088 R)
• M8: 14,785,356 km (0.114 R)
• M9: 16,192,922 km (0.119 R)
• M10: 16,929,243 km (0.109 R)
• M11: 17,610,811 km (0.051 R)
• M12: 18,867,583 km (0.108 R)
• M13: 23,550,894 km (0.067 R)
• M14: 29,062,827 km (0.092 R)
• M15: 33,928,498 km (0.119 R)
• M16: 37,246,279 km (0.096 R)
• M17: 40,104,646 km (0.088 R)
• M18: 45,525,624 km (0.072 R)
• M19: 48,941,243 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.3

Radius: 6.4

Gravity: 18.59 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 15.29 AU - 19.47 AU

Year: 27296 Days

Day: 18.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 96,974,123 km

• M1: 83,775 km (0.026 R)
• M2: 287,527 km (0.119 R)
• M3: 635,342 km (0.111 R)
• M4: 1,337,106 km (0.031 R)
• M5: 2,567,099 km (0.03 R)
• M6: 3,722,444 km (0.093 R)
• M7: 4,198,464 km (0.116 R)
• M8: 4,752,724 km (0.115 R)
• M9: 5,916,147 km (0.118 R)
• M10: 7,207,177 km (0.103 R)
• M11: 7,676,316 km (0.113 R)
• M12: 8,791,867 km (0.051 R)
• M13: 18,693,002 km (0.115 R)
• M14: 19,082,854 km (0.101 R)
• M15: 22,289,784 km (0.098 R)
• M16: 25,361,028 km (0.082 R)
• M17: 28,961,699 km (0.055 R)
• M18: 30,278,310 km (0.099 R)
• M19: 32,607,249 km (0.035 R)
• M20: 41,449,531 km (0.082 R)
• M21: 52,147,574 km (0.065 R)
• M22: 53,896,074 km (0.12 R)
• M23: 54,487,434 km (0.096 R)
• M24: 57,714,709 km (0.095 R)
• M25: 59,584,981 km (0.064 R)
• M26: 65,661,348 km (0.111 R)
• M27: 66,561,777 km (0.104 R)
• M28: 73,578,965 km (0.07 R)
• M29: 75,530,170 km (0.038 R)
• M30: 79,535,653 km (0.087 R)
• M31: 83,417,119 km (0.12 R)
• M32: 83,680,262 km (0.106 R)
• M33: 85,805,599 km (0.038 R)
• M34: 88,239,406 km (0.075 R)
• M35: 89,335,660 km (0.057 R)
• M36: 93,527,542 km (0.079 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: 423 - 16,405 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit