🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.43 AU - 0.59 AU

Year: 232 Days

Day: 41.8 Hours

Environment

Temp: -112 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.52 AU - 0.68 AU

Year: 296 Days

Day: 45 Hours

Environment

Temp: -136 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.2

Radius: 13

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.76 AU - 1.1 AU

Year: 570 Days

Day: 14.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,612,329 km

• M1: 162,164 km (0.119 R)
• M2: 788,381 km (0.034 R)
• M3: 1,266,047 km (0.091 R)
• M4: 1,700,329 km (0.08 R)
• M5: 3,663,801 km (0.12 R)
• M6: 4,649,651 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.3

Radius: 11.9

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.86 AU - 1.44 AU

Year: 784 Days

Day: 9.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,612,329 km

• M1: 189,690 km (0.12 R)
• M2: 609,611 km (0.119 R)
• M3: 1,457,083 km (0.088 R)
• M4: 2,132,368 km (0.1 R)
• M5: 2,601,208 km (0.092 R)
• M6: 3,287,712 km (0.119 R)
• M7: 3,825,218 km (0.094 R)
• M8: 4,287,026 km (0.101 R)
• M9: 5,323,440 km (0.118 R)
• M10: 6,088,633 km (0.11 R)
• M11: 6,675,655 km (0.089 R)
• M12: 7,444,289 km (0.114 R)
• M13: 8,586,469 km (0.112 R)
• M14: 9,074,756 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.5

Radius: 12.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.77 AU - 5.91 AU

Year: 6770 Days

Day: 7.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,612,329 km

• M1: 154,235 km (0.115 R)
• M2: 637,586 km (0.085 R)
• M3: 1,137,243 km (0.057 R)
• M4: 1,831,527 km (0.062 R)
• M5: 2,276,431 km (0.102 R)
• M6: 3,471,867 km (0.109 R)
• M7: 4,091,053 km (0.068 R)
• M8: 4,730,883 km (0.075 R)
• M9: 5,239,965 km (0.072 R)
• M10: 6,658,302 km (0.091 R)
• M11: 7,195,508 km (0.116 R)
• M12: 10,683,981 km (0.075 R)
• M13: 12,692,332 km (0.112 R)
• M14: 13,519,908 km (0.059 R)
• M15: 14,328,185 km (0.11 R)
• M16: 15,981,690 km (0.12 R)
• M17: 17,381,178 km (0.091 R)
• M18: 20,006,920 km (0.108 R)
• M19: 20,773,160 km (0.07 R)
• M20: 21,342,530 km (0.118 R)
• M21: 21,995,525 km (0.107 R)
• M22: 27,623,546 km (0.077 R)
• M23: 29,278,248 km (0.041 R)

Asteroid Belt

Center: 6.22 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.2

Radius: 4.1

Gravity: 50.4 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 6.29 AU - 8.91 AU

Year: 13322 Days

Day: 18.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,612,329 km

• M1: 51,013 km (0.082 R)
• M2: 181,462 km (0.08 R)
• M3: 378,931 km (0.063 R)
• M4: 818,151 km (0.056 R)
• M5: 1,059,003 km (0.086 R)
• M6: 1,289,683 km (0.057 R)
• M7: 1,996,384 km (0.11 R)
• M8: 2,475,845 km (0.105 R)
• M9: 2,835,628 km (0.079 R)
• M10: 3,003,626 km (0.087 R)
• M11: 3,466,332 km (0.04 R)
• M12: 4,094,494 km (0.082 R)
• M13: 4,435,577 km (0.108 R)
• M14: 5,952,649 km (0.043 R)
• M15: 6,513,042 km (0.105 R)
• M16: 8,114,637 km (0.073 R)
• M17: 10,806,801 km (0.102 R)
• M18: 11,945,540 km (0.115 R)
• M19: 16,675,076 km (0.043 R)
• M20: 17,863,931 km (0.061 R)
• M21: 20,497,751 km (0.089 R)
• M22: 24,967,137 km (0.066 R)
• M23: 25,272,615 km (0.089 R)
• M24: 30,390,059 km (0.099 R)
• M25: 30,855,010 km (0.088 R)
• M26: 31,799,122 km (0.041 R)
• M27: 37,871,599 km (0.112 R)
• M28: 38,274,914 km (0.108 R)
• M29: 39,364,436 km (0.043 R)
• M30: 44,672,916 km (0.108 R)
• M31: 47,731,594 km (0.066 R)
• M32: 50,763,943 km (0.113 R)
• M33: 52,911,121 km (0.057 R)
• M34: 53,415,117 km (0.099 R)
• M35: 54,774,662 km (0.057 R)
• M36: 55,290,326 km (0.12 R)
• M37: 55,982,964 km (0.081 R)
• M38: 57,209,068 km (0.109 R)
• M39: 62,105,706 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.6

Radius: 4.5

Gravity: 40.33 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 9.79 AU - 10.37 AU

Year: 20348 Days

Day: 23.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,612,329 km

• M1: 71,059 km (0.069 R)
• M2: 402,717 km (0.096 R)
• M3: 580,739 km (0.034 R)
• M4: 1,035,367 km (0.09 R)
• M5: 1,211,892 km (0.085 R)
• M6: 1,376,749 km (0.095 R)
• M7: 5,314,764 km (0.096 R)
• M8: 6,909,028 km (0.101 R)
• M9: 7,194,461 km (0.108 R)
• M10: 7,738,249 km (0.092 R)
• M11: 8,686,550 km (0.119 R)
• M12: 8,963,156 km (0.106 R)
• M13: 9,131,903 km (0.109 R)
• M14: 9,651,007 km (0.045 R)
• M15: 10,128,673 km (0.104 R)
• M16: 11,002,325 km (0.115 R)
• M17: 13,185,706 km (0.084 R)
• M18: 18,295,969 km (0.047 R)
• M19: 20,351,893 km (0.059 R)
• M20: 22,042,498 km (0.103 R)
• M21: 27,790,647 km (0.095 R)
• M22: 30,370,013 km (0.082 R)
• M23: 31,393,263 km (0.116 R)
• M24: 34,188,050 km (0.112 R)
• M25: 35,434,948 km (0.113 R)
• M26: 47,707,509 km (0.074 R)
• M27: 51,030,826 km (0.107 R)
• M28: 51,209,894 km (0.103 R)
• M29: 52,293,132 km (0.089 R)
• M30: 55,067,874 km (0.108 R)
• M31: 62,328,457 km (0.119 R)
• M32: 65,445,029 km (0.044 R)
• M33: 74,260,233 km (0.082 R)
• M34: 77,051,430 km (0.036 R)
• M35: 79,190,082 km (0.076 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 17,556 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit