🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 10.5

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 13.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,974,131 km

• M1: 130,749 km (0.103 R)
• M2: 748,588 km (0.085 R)
• M3: 1,214,436 km (0.081 R)
• M4: 1,812,378 km (0.061 R)
• M5: 2,140,746 km (0.095 R)
• M6: 2,549,297 km (0.109 R)
• M7: 2,955,755 km (0.088 R)
• M8: 3,317,782 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.5

Radius: 13

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.48 AU - 0.66 AU

Year: 287 Days

Day: 15 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,974,131 km

• M1: 163,361 km (0.043 R)
• M2: 571,464 km (0.065 R)
• M3: 1,022,202 km (0.115 R)
• M4: 1,506,600 km (0.098 R)
• M5: 2,097,213 km (0.03 R)
• M6: 3,156,665 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.1

Radius: 8.5

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.49 AU - 0.71 AU

Year: 310 Days

Day: 11.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,974,131 km

• M1: 105,766 km (0.099 R)
• M2: 409,001 km (0.114 R)
• M3: 687,851 km (0.096 R)
• M4: 990,338 km (0.093 R)
• M5: 1,377,497 km (0.113 R)
• M6: 1,844,691 km (0.099 R)
• M7: 2,307,996 km (0.097 R)
• M8: 2,694,407 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.9

Radius: 13

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.51 AU - 0.69 AU

Year: 310 Days

Day: 6.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,974,131 km

• M1: 161,715 km (0.086 R)
• M2: 572,511 km (0.1 R)
• M3: 1,100,891 km (0.09 R)
• M4: 1,524,103 km (0.087 R)
• M5: 2,073,426 km (0.085 R)
• M6: 2,480,183 km (0.101 R)
• M7: 3,197,505 km (0.112 R)
• M8: 3,907,347 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.4

Radius: 8.1

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.69 AU - 0.69 AU

Year: 382 Days

Day: 11.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,974,131 km

• M1: 103,223 km (0.104 R)
• M2: 660,923 km (0.116 R)
• M3: 1,081,892 km (0.107 R)
• M4: 1,618,649 km (0.098 R)
• M5: 1,909,318 km (0.084 R)
• M6: 2,217,788 km (0.117 R)
• M7: 2,559,470 km (0.113 R)
• M8: 3,181,797 km (0.038 R)
• M9: 3,499,543 km (0.088 R)
• M10: 3,964,643 km (0.109 R)
• M11: 4,738,961 km (0.109 R)
• M12: 5,154,544 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.8

Radius: 12.5

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.69 AU - 3.15 AU

Year: 3327 Days

Day: 13.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,974,131 km

• M1: 155,432 km (0.108 R)
• M2: 555,158 km (0.084 R)
• M3: 1,014,423 km (0.08 R)
• M4: 1,465,311 km (0.04 R)
• M5: 1,989,801 km (0.037 R)
• M6: 3,719,302 km (0.056 R)
• M7: 5,686,664 km (0.112 R)
• M8: 6,512,444 km (0.041 R)
• M9: 7,205,381 km (0.03 R)
• M10: 7,819,780 km (0.062 R)
• M11: 10,024,105 km (0.036 R)
• M12: 12,397,924 km (0.113 R)
• M13: 14,636,805 km (0.06 R)
• M14: 15,124,943 km (0.113 R)
• M15: 18,061,998 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.3

Radius: 8.8

Gravity: 12.52 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.67 AU - 3.81 AU

Year: 3889 Days

Day: 9 Hours

Environment

Temp: -212 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,974,131 km

• M1: 109,506 km (0.059 R)
• M2: 401,371 km (0.063 R)
• M3: 842,685 km (0.056 R)
• M4: 1,135,897 km (0.057 R)
• M5: 1,487,003 km (0.028 R)
• M6: 1,803,702 km (0.088 R)
• M7: 2,195,498 km (0.099 R)
• M8: 2,729,563 km (0.083 R)
• M9: 3,552,800 km (0.056 R)
• M10: 4,079,384 km (0.094 R)
• M11: 6,340,855 km (0.12 R)
• M12: 6,818,372 km (0.1 R)
• M13: 7,457,304 km (0.056 R)
• M14: 8,971,983 km (0.105 R)
• M15: 9,330,120 km (0.12 R)
• M16: 11,220,588 km (0.095 R)
• M17: 11,543,420 km (0.067 R)
• M18: 11,967,381 km (0.089 R)
• M19: 17,712,238 km (0.102 R)
• M20: 19,178,447 km (0.114 R)
• M21: 20,586,313 km (0.047 R)
• M22: 23,306,750 km (0.115 R)
• M23: 23,606,394 km (0.097 R)
• M24: 24,753,062 km (0.099 R)
• M25: 26,339,099 km (0.079 R)
• M26: 27,156,950 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.1

Radius: 9.7

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.52 AU - 4.09 AU

Year: 4940 Days

Day: 12.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,974,131 km

• M1: 120,875 km (0.091 R)
• M2: 607,218 km (0.064 R)
• M3: 913,295 km (0.072 R)
• M4: 1,381,237 km (0.107 R)
• M5: 1,822,850 km (0.059 R)
• M6: 2,245,314 km (0.108 R)
• M7: 2,591,484 km (0.071 R)
• M8: 2,992,406 km (0.104 R)
• M9: 3,562,673 km (0.105 R)
• M10: 3,919,913 km (0.098 R)
• M11: 6,462,478 km (0.088 R)
• M12: 7,668,088 km (0.11 R)
• M13: 10,654,809 km (0.12 R)
• M14: 11,448,127 km (0.117 R)
• M15: 12,532,412 km (0.09 R)
• M16: 14,174,697 km (0.075 R)
• M17: 15,018,878 km (0.114 R)
• M18: 16,993,570 km (0.071 R)
• M19: 19,000,874 km (0.103 R)
• M20: 21,891,704 km (0.095 R)
• M21: 23,480,433 km (0.094 R)
• M22: 24,105,453 km (0.118 R)
• M23: 24,422,002 km (0.078 R)
• M24: 26,632,460 km (0.105 R)
• M25: 27,226,663 km (0.105 R)
• M26: 28,883,908 km (0.098 R)
• M27: 30,330,819 km (0.102 R)
• M28: 30,792,777 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.1

Radius: 15

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.33 AU - 5.13 AU

Year: 6860 Days

Day: 7.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,974,131 km

• M1: 186,549 km (0.101 R)
• M2: 1,461,122 km (0.068 R)
• M3: 1,975,440 km (0.113 R)
• M4: 2,951,117 km (0.107 R)
• M5: 5,756,825 km (0.096 R)
• M6: 6,340,556 km (0.106 R)
• M7: 6,963,482 km (0.063 R)
• M8: 8,827,471 km (0.052 R)
• M9: 10,057,914 km (0.102 R)
• M10: 11,102,855 km (0.099 R)
• M11: 11,753,755 km (0.101 R)
• M12: 13,464,856 km (0.103 R)
• M13: 17,244,446 km (0.08 R)
• M14: 18,740,724 km (0.102 R)
• M15: 22,778,669 km (0.099 R)
• M16: 23,749,111 km (0.067 R)
• M17: 24,327,905 km (0.085 R)
• M18: 25,427,599 km (0.107 R)
• M19: 27,094,119 km (0.11 R)
• M20: 27,726,170 km (0.06 R)
• M21: 28,460,546 km (0.058 R)
• M22: 32,835,685 km (0.094 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 16,470 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit