🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

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: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.43 AU - 0.59 AU

Year: 239 Days

Day: 36.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 12

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.74 AU - 0.96 AU

Year: 514 Days

Day: 8.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,066,030 km

• M1: 149,299 km (0.046 R)
• M2: 536,458 km (0.12 R)
• M3: 1,029,383 km (0.117 R)
• M4: 1,500,317 km (0.027 R)
• M5: 1,954,646 km (0.085 R)
• M6: 3,028,459 km (0.093 R)
• M7: 3,440,302 km (0.088 R)
• M8: 3,979,004 km (0.062 R)
• M9: 4,378,131 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.1

Radius: 11.7

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.41 AU - 2.09 AU

Year: 1519 Days

Day: 7.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,066,030 km

• M1: 145,559 km (0.118 R)
• M2: 624,870 km (0.081 R)
• M3: 1,060,649 km (0.101 R)
• M4: 1,484,310 km (0.052 R)
• M5: 2,172,610 km (0.094 R)
• M6: 2,604,798 km (0.053 R)
• M7: 3,819,084 km (0.059 R)
• M8: 4,356,290 km (0.109 R)
• M9: 4,859,537 km (0.066 R)
• M10: 7,244,726 km (0.087 R)
• M11: 8,863,823 km (0.06 R)
• M12: 10,115,359 km (0.062 R)
• M13: 10,569,538 km (0.087 R)
• M14: 11,594,134 km (0.117 R)
• M15: 13,171,045 km (0.103 R)
• M16: 14,400,740 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.8

Radius: 9.4

Gravity: 10.41 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.64 AU - 2.4 AU

Year: 1883 Days

Day: 8.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,066,030 km

• M1: 116,986 km (0.118 R)
• M2: 456,573 km (0.116 R)
• M3: 1,413,849 km (0.045 R)
• M4: 2,001,769 km (0.069 R)
• M5: 5,033,520 km (0.067 R)
• M6: 5,401,082 km (0.038 R)
• M7: 5,737,228 km (0.08 R)
• M8: 6,138,449 km (0.062 R)
• M9: 6,666,380 km (0.073 R)
• M10: 8,658,126 km (0.078 R)
• M11: 11,877,772 km (0.086 R)
• M12: 13,820,300 km (0.093 R)
• M13: 16,409,839 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.2

Radius: 9.9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.62 AU - 2.72 AU

Year: 2862 Days

Day: 9.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,066,030 km

• M1: 123,119 km (0.111 R)
• M2: 510,727 km (0.091 R)
• M3: 842,236 km (0.111 R)
• M4: 1,221,467 km (0.034 R)
• M5: 1,563,896 km (0.095 R)
• M6: 1,907,223 km (0.084 R)
• M7: 2,576,225 km (0.066 R)
• M8: 2,944,236 km (0.062 R)
• M9: 3,587,058 km (0.112 R)
• M10: 4,843,530 km (0.12 R)
• M11: 5,172,646 km (0.094 R)
• M12: 5,899,242 km (0.083 R)
• M13: 7,101,860 km (0.032 R)
• M14: 7,555,141 km (0.092 R)
• M15: 8,909,451 km (0.098 R)
• M16: 9,217,323 km (0.087 R)
• M17: 9,564,241 km (0.053 R)
• M18: 12,167,393 km (0.06 R)
• M19: 13,449,896 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.3

Radius: 10.5

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.1 AU - 3.44 AU

Year: 3024 Days

Day: 8.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,066,030 km

• M1: 134,488 km (0.093 R)
• M2: 559,197 km (0.099 R)
• M3: 1,259,165 km (0.106 R)
• M4: 1,668,914 km (0.089 R)
• M5: 2,430,965 km (0.058 R)
• M6: 2,827,101 km (0.062 R)
• M7: 3,195,859 km (0.101 R)
• M8: 4,093,147 km (0.091 R)
• M9: 4,500,502 km (0.11 R)
• M10: 5,297,410 km (0.117 R)
• M11: 6,724,125 km (0.106 R)
• M12: 7,231,860 km (0.068 R)
• M13: 8,024,879 km (0.062 R)
• M14: 8,391,693 km (0.082 R)
• M15: 9,972,792 km (0.087 R)
• M16: 10,475,740 km (0.065 R)
• M17: 11,786,218 km (0.089 R)
• M18: 14,631,270 km (0.077 R)
• M19: 16,854,594 km (0.067 R)
• M20: 17,457,623 km (0.113 R)
• M21: 19,532,545 km (0.082 R)
• M22: 20,198,106 km (0.091 R)
• M23: 20,816,095 km (0.038 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.5

Radius: 13.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.11 AU - 3.43 AU

Year: 3024 Days

Day: 9.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,066,030 km

• M1: 165,455 km (0.119 R)
• M2: 668,254 km (0.044 R)
• M3: 1,151,455 km (0.101 R)
• M4: 1,606,532 km (0.116 R)
• M5: 2,111,873 km (0.04 R)
• M6: 2,957,550 km (0.097 R)
• M7: 3,467,828 km (0.108 R)
• M8: 4,188,740 km (0.12 R)
• M9: 4,835,602 km (0.061 R)
• M10: 5,595,260 km (0.114 R)
• M11: 6,178,242 km (0.106 R)
• M12: 7,018,534 km (0.071 R)
• M13: 8,894,641 km (0.085 R)
• M14: 9,320,097 km (0.115 R)
• M15: 10,862,451 km (0.103 R)
• M16: 12,246,082 km (0.103 R)
• M17: 12,691,435 km (0.112 R)
• M18: 15,975,108 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.6

Radius: 5.5

Gravity: 19.89 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.17 AU - 7.53 AU

Year: 10497 Days

Day: 19.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,066,030 km

• M1: 68,965 km (0.091 R)
• M2: 470,336 km (0.118 R)
• M3: 706,700 km (0.07 R)
• M4: 1,247,048 km (0.073 R)
• M5: 2,920,150 km (0.058 R)
• M6: 4,296,900 km (0.117 R)
• M7: 4,646,659 km (0.08 R)
• M8: 10,345,740 km (0.111 R)
• M9: 10,867,388 km (0.095 R)
• M10: 11,351,636 km (0.086 R)
• M11: 15,824,912 km (0.088 R)
• M12: 16,030,309 km (0.111 R)
• M13: 21,098,087 km (0.092 R)
• M14: 21,851,013 km (0.09 R)
• M15: 22,970,155 km (0.038 R)
• M16: 27,531,992 km (0.067 R)
• M17: 29,971,784 km (0.111 R)
• M18: 42,612,654 km (0.079 R)
• M19: 45,450,975 km (0.081 R)
• M20: 46,144,959 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.7

Radius: 3.5

Gravity: 51.24 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.13 AU - 9.97 AU

Year: 17860 Days

Day: 23.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 78,066,030 km

• M1: 53,706 km (0.106 R)
• M2: 183,856 km (0.073 R)
• M3: 1,499,270 km (0.095 R)
• M4: 1,713,943 km (0.05 R)
• M5: 2,025,256 km (0.098 R)
• M6: 2,184,279 km (0.116 R)
• M7: 2,373,071 km (0.118 R)
• M8: 3,921,708 km (0.05 R)
• M9: 4,137,728 km (0.066 R)
• M10: 4,459,961 km (0.098 R)
• M11: 4,798,651 km (0.087 R)
• M12: 5,081,690 km (0.095 R)
• M13: 6,243,318 km (0.065 R)
• M14: 6,537,726 km (0.108 R)
• M15: 7,857,179 km (0.12 R)
• M16: 8,502,545 km (0.096 R)
• M17: 12,594,495 km (0.12 R)
• M18: 17,006,884 km (0.119 R)
• M19: 24,145,246 km (0.083 R)
• M20: 28,023,272 km (0.111 R)
• M21: 28,250,212 km (0.076 R)
• M22: 28,592,791 km (0.108 R)
• M23: 30,109,414 km (0.032 R)
• M24: 30,947,760 km (0.089 R)
• M25: 31,190,258 km (0.11 R)
• M26: 32,546,064 km (0.095 R)
• M27: 37,531,563 km (0.116 R)
• M28: 38,502,303 km (0.119 R)
• M29: 38,782,650 km (0.05 R)
• M30: 43,759,771 km (0.095 R)
• M31: 44,218,288 km (0.083 R)
• M32: 46,400,622 km (0.066 R)
• M33: 48,327,443 km (0.09 R)
• M34: 54,780,047 km (0.097 R)
• M35: 56,749,653 km (0.069 R)
• M36: 65,897,862 km (0.109 R)
• M37: 67,106,164 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.8

Radius: 3.3

Gravity: 59.85 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.89 AU - 11.47 AU

Year: 21307 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,066,030 km

• M1: 42,785 km (0.082 R)
• M2: 237,262 km (0.104 R)
• M3: 397,930 km (0.106 R)
• M4: 871,856 km (0.051 R)
• M5: 1,053,618 km (0.065 R)
• M6: 2,254,739 km (0.107 R)
• M7: 2,388,031 km (0.078 R)
• M8: 3,773,157 km (0.113 R)
• M9: 4,923,116 km (0.087 R)
• M10: 6,201,430 km (0.106 R)
• M11: 7,246,222 km (0.04 R)
• M12: 8,141,864 km (0.108 R)
• M13: 8,942,512 km (0.072 R)
• M14: 10,885,938 km (0.08 R)
• M15: 15,343,506 km (0.095 R)
• M16: 17,233,824 km (0.052 R)
• M17: 22,269,588 km (0.058 R)
• M18: 23,508,109 km (0.088 R)
• M19: 29,529,273 km (0.071 R)
• M20: 30,895,850 km (0.072 R)
• M21: 31,022,110 km (0.093 R)
• M22: 31,915,659 km (0.055 R)
• M23: 37,929,044 km (0.064 R)
• M24: 65,261,921 km (0.107 R)
• M25: 72,136,991 km (0.091 R)
• M26: 72,805,245 km (0.082 R)
• M27: 73,252,991 km (0.028 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 12,423 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit