🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.78 AU - 1.28 AU

Year: 374 Days

Day: 13.7 Hours

Environment

Temp: 21 °C

Axial Tilt: 5.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.08 AU - 1.58 AU

Year: 549 Days

Day: 34.1 Hours

Environment

Temp: -14 °C

Axial Tilt: 5.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 76,121,013 km

• M1: 443,857 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.8

Radius: 12

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.91 AU - 8.25 AU

Year: 7474 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,121,013 km

• M1: 149,299 km (0.091 R)
• M2: 579,841 km (0.081 R)
• M3: 1,384,827 km (0.109 R)
• M4: 1,896,751 km (0.107 R)
• M5: 2,296,477 km (0.077 R)
• M6: 3,699,406 km (0.089 R)
• M7: 4,623,472 km (0.089 R)
• M8: 5,869,472 km (0.116 R)
• M9: 6,958,844 km (0.083 R)
• M10: 7,362,010 km (0.099 R)
• M11: 8,105,213 km (0.05 R)
• M12: 9,212,835 km (0.078 R)
• M13: 9,699,776 km (0.04 R)
• M14: 10,419,043 km (0.037 R)
• M15: 10,813,981 km (0.078 R)
• M16: 14,023,753 km (0.111 R)
• M17: 14,998,982 km (0.094 R)
• M18: 23,131,870 km (0.065 R)
• M19: 24,415,420 km (0.113 R)
• M20: 25,507,634 km (0.07 R)
• M21: 28,041,672 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.8

Radius: 12.3

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.8 AU - 8.7 AU

Year: 7727 Days

Day: 8.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,121,013 km

• M1: 153,188 km (0.093 R)
• M2: 593,604 km (0.1 R)
• M3: 1,153,998 km (0.081 R)
• M4: 1,917,546 km (0.112 R)
• M5: 2,587,146 km (0.063 R)
• M6: 3,169,829 km (0.114 R)
• M7: 4,153,286 km (0.12 R)
• M8: 5,355,903 km (0.117 R)
• M9: 6,481,029 km (0.087 R)
• M10: 6,991,307 km (0.111 R)
• M11: 8,025,178 km (0.113 R)
• M12: 12,228,878 km (0.115 R)
• M13: 14,119,945 km (0.041 R)
• M14: 15,396,613 km (0.119 R)
• M15: 17,028,576 km (0.071 R)
• M16: 19,564,858 km (0.071 R)
• M17: 21,940,622 km (0.06 R)
• M18: 23,301,963 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.6

Radius: 12.3

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.01 AU - 9.45 AU

Year: 9238 Days

Day: 7.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,121,013 km

• M1: 157,527 km (0.084 R)
• M2: 543,339 km (0.064 R)
• M3: 1,317,508 km (0.099 R)
• M4: 3,531,108 km (0.048 R)
• M5: 4,606,268 km (0.049 R)
• M6: 8,132,290 km (0.092 R)
• M7: 11,689,129 km (0.113 R)
• M8: 15,312,090 km (0.114 R)
• M9: 20,165,344 km (0.112 R)
• M10: 21,603,877 km (0.033 R)
• M11: 29,533,163 km (0.115 R)
• M12: 30,244,800 km (0.112 R)
• M13: 39,331,225 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976

Radius: 9.4

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.16 AU - 10.24 AU

Year: 11667 Days

Day: 8.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,121,013 km

• M1: 116,836 km (0.103 R)
• M2: 464,801 km (0.118 R)
• M3: 787,483 km (0.079 R)
• M4: 1,177,634 km (0.083 R)
• M5: 1,542,055 km (0.045 R)
• M6: 2,146,131 km (0.117 R)
• M7: 2,503,371 km (0.09 R)
• M8: 4,050,811 km (0.053 R)
• M9: 5,589,724 km (0.098 R)
• M10: 8,998,910 km (0.092 R)
• M11: 10,042,954 km (0.037 R)
• M12: 13,994,432 km (0.071 R)
• M13: 16,576,790 km (0.082 R)
• M14: 17,582,687 km (0.114 R)
• M15: 19,125,340 km (0.057 R)
• M16: 21,741,807 km (0.105 R)
• M17: 23,325,749 km (0.037 R)
• M18: 25,286,079 km (0.1 R)
• M19: 25,792,917 km (0.11 R)
• M20: 29,755,764 km (0.106 R)
• M21: 32,294,889 km (0.082 R)
• M22: 35,351,622 km (0.072 R)
• M23: 36,626,645 km (0.067 R)
• M24: 38,729,991 km (0.082 R)
• M25: 40,912,474 km (0.104 R)
• M26: 43,031,977 km (0.074 R)
• M27: 43,899,944 km (0.115 R)
• M28: 45,075,185 km (0.099 R)
• M29: 47,488,498 km (0.034 R)
• M30: 49,354,133 km (0.028 R)
• M31: 54,567,319 km (0.062 R)
• M32: 56,440,733 km (0.094 R)
• M33: 58,356,783 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969

Radius: 7

Gravity: 19.78 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 11.21 AU - 14.83 AU

Year: 16826 Days

Day: 16.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,121,013 km

• M1: 88,263 km (0.113 R)
• M2: 560,693 km (0.042 R)
• M3: 1,438,832 km (0.099 R)
• M4: 2,330,286 km (0.12 R)
• M5: 2,555,281 km (0.12 R)
• M6: 3,209,323 km (0.044 R)
• M7: 4,358,833 km (0.095 R)
• M8: 6,563,906 km (0.101 R)
• M9: 7,015,691 km (0.112 R)
• M10: 8,443,304 km (0.113 R)
• M11: 11,089,391 km (0.093 R)
• M12: 12,806,326 km (0.118 R)
• M13: 16,184,096 km (0.075 R)
• M14: 16,510,369 km (0.043 R)
• M15: 16,757,953 km (0.079 R)
• M16: 17,515,667 km (0.087 R)
• M17: 19,099,160 km (0.101 R)
• M18: 19,925,688 km (0.097 R)
• M19: 24,525,823 km (0.111 R)
• M20: 25,173,582 km (0.085 R)
• M21: 29,909,401 km (0.114 R)
• M22: 30,897,795 km (0.118 R)
• M23: 33,860,880 km (0.076 R)
• M24: 36,030,498 km (0.081 R)
• M25: 40,345,199 km (0.117 R)
• M26: 41,096,181 km (0.102 R)
• M27: 42,163,262 km (0.111 R)
• M28: 43,877,355 km (0.107 R)
• M29: 45,152,677 km (0.12 R)
• M30: 47,111,810 km (0.053 R)
• M31: 48,956,801 km (0.089 R)
• M32: 59,100,883 km (0.065 R)
• M33: 61,839,272 km (0.094 R)
• M34: 66,728,280 km (0.095 R)
• M35: 68,839,255 km (0.05 R)
• M36: 70,343,163 km (0.037 R)

Kuiper Belt

Range: 30.6 - 55.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 16,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit