🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.4

Radius: 11.2

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.53 AU - 0.79 AU

Year: 377 Days

Day: 13.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 68,913,432 km

• M1: 139,276 km (0.12 R)
• M2: 587,920 km (0.084 R)
• M3: 1,079,947 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.8

Radius: 12.2

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.37 AU - 1.55 AU

Year: 1240 Days

Day: 11.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,913,432 km

• M1: 151,692 km (0.102 R)
• M2: 607,966 km (0.088 R)
• M3: 994,676 km (0.076 R)
• M4: 1,374,954 km (0.116 R)
• M5: 1,811,032 km (0.026 R)
• M6: 2,447,122 km (0.095 R)
• M7: 3,136,619 km (0.114 R)
• M8: 3,584,215 km (0.053 R)
• M9: 4,215,967 km (0.053 R)
• M10: 5,490,391 km (0.095 R)
• M11: 7,396,867 km (0.068 R)
• M12: 8,195,869 km (0.054 R)
• M13: 8,655,434 km (0.095 R)
• M14: 9,051,569 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.2

Radius: 9.3

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.86 AU - 2.66 AU

Year: 2388 Days

Day: 9.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,913,432 km

• M1: 124,316 km (0.095 R)
• M2: 428,897 km (0.085 R)
• M3: 763,548 km (0.097 R)
• M4: 1,139,038 km (0.1 R)
• M5: 1,429,856 km (0.086 R)
• M6: 1,912,908 km (0.116 R)
• M7: 2,274,785 km (0.12 R)
• M8: 2,667,031 km (0.097 R)
• M9: 4,506,636 km (0.112 R)
• M10: 4,962,161 km (0.061 R)
• M11: 6,291,338 km (0.105 R)
• M12: 8,302,233 km (0.076 R)
• M13: 9,972,792 km (0.11 R)
• M14: 10,628,929 km (0.093 R)
• M15: 11,561,971 km (0.117 R)
• M16: 13,221,759 km (0.112 R)
• M17: 13,590,518 km (0.085 R)
• M18: 15,742,782 km (0.089 R)
• M19: 17,389,256 km (0.118 R)
• M20: 19,147,480 km (0.101 R)
• M21: 20,587,659 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.7

Radius: 9.6

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.95 AU - 4.07 AU

Year: 5644 Days

Day: 14.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,913,432 km

• M1: 119,379 km (0.073 R)
• M2: 454,179 km (0.086 R)
• M3: 868,715 km (0.067 R)
• M4: 1,212,192 km (0.107 R)
• M5: 1,582,895 km (0.072 R)
• M6: 2,522,220 km (0.114 R)
• M7: 3,238,943 km (0.069 R)
• M8: 3,914,976 km (0.105 R)
• M9: 4,931,045 km (0.067 R)
• M10: 5,485,604 km (0.086 R)
• M11: 5,793,926 km (0.089 R)
• M12: 7,513,703 km (0.102 R)
• M13: 8,011,714 km (0.04 R)
• M14: 8,531,417 km (0.114 R)
• M15: 9,816,911 km (0.096 R)
• M16: 11,776,644 km (0.085 R)
• M17: 12,187,290 km (0.114 R)
• M18: 16,326,812 km (0.079 R)
• M19: 17,624,574 km (0.108 R)
• M20: 18,026,992 km (0.093 R)
• M21: 19,200,588 km (0.088 R)
• M22: 19,986,575 km (0.106 R)
• M23: 20,497,751 km (0.109 R)
• M24: 22,395,250 km (0.042 R)
• M25: 25,584,677 km (0.105 R)
• M26: 28,786,520 km (0.114 R)
• M27: 34,805,590 km (0.106 R)
• M28: 35,652,464 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.1

Radius: 8.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.16 AU - 5.7 AU

Year: 7694 Days

Day: 10.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,913,432 km

• M1: 110,553 km (0.115 R)
• M2: 631,453 km (0.108 R)
• M3: 1,974,393 km (0.052 R)
• M4: 2,532,393 km (0.089 R)
• M5: 3,230,416 km (0.091 R)
• M6: 4,522,044 km (0.114 R)
• M7: 5,108,917 km (0.115 R)
• M8: 6,717,692 km (0.094 R)
• M9: 7,585,210 km (0.067 R)
• M10: 7,973,866 km (0.089 R)
• M11: 8,413,085 km (0.049 R)
• M12: 9,500,811 km (0.101 R)
• M13: 10,462,127 km (0.105 R)
• M14: 18,568,686 km (0.084 R)
• M15: 19,145,685 km (0.044 R)
• M16: 24,734,512 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 435.9

Radius: 7.6

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.61 AU - 7.15 AU

Year: 11328 Days

Day: 23.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,913,432 km

• M1: 154,086 km (0.107 R)
• M2: 544,985 km (0.062 R)
• M3: 801,545 km (0.11 R)
• M4: 2,180,389 km (0.102 R)
• M5: 2,685,731 km (0.067 R)
• M6: 3,648,991 km (0.088 R)
• M7: 8,158,021 km (0.066 R)
• M8: 10,043,851 km (0.079 R)
• M9: 13,360,885 km (0.074 R)
• M10: 14,909,223 km (0.083 R)
• M11: 16,299,286 km (0.083 R)
• M12: 16,990,728 km (0.057 R)
• M13: 25,381,224 km (0.082 R)
• M14: 35,020,862 km (0.078 R)
• M15: 41,915,229 km (0.118 R)
• M16: 43,080,447 km (0.072 R)
• M17: 44,667,381 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298

Radius: 7.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.22 AU - 8.5 AU

Year: 12630 Days

Day: 24.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,913,432 km

• M1: 96,939 km (0.083 R)
• M2: 368,160 km (0.107 R)
• M3: 1,086,230 km (0.082 R)
• M4: 1,457,382 km (0.056 R)
• M5: 1,716,187 km (0.089 R)
• M6: 2,512,047 km (0.103 R)
• M7: 3,533,053 km (0.105 R)
• M8: 4,031,663 km (0.102 R)
• M9: 4,691,090 km (0.089 R)
• M10: 7,025,565 km (0.115 R)
• M11: 7,334,036 km (0.104 R)
• M12: 7,732,415 km (0.112 R)
• M13: 8,925,009 km (0.108 R)
• M14: 9,612,112 km (0.105 R)
• M15: 10,582,404 km (0.112 R)
• M16: 13,409,056 km (0.106 R)
• M17: 13,704,811 km (0.081 R)
• M18: 14,005,053 km (0.092 R)
• M19: 17,532,870 km (0.075 R)
• M20: 19,200,588 km (0.102 R)
• M21: 24,657,319 km (0.035 R)
• M22: 25,280,993 km (0.097 R)
• M23: 27,881,154 km (0.114 R)
• M24: 29,844,027 km (0.101 R)
• M25: 34,816,212 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.1

Radius: 6.4

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 7.18 AU - 7.32 AU

Year: 13722 Days

Day: 20.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,913,432 km

• M1: 79,885 km (0.106 R)
• M2: 310,715 km (0.034 R)
• M3: 519,404 km (0.044 R)
• M4: 893,398 km (0.119 R)
• M5: 1,095,206 km (0.114 R)
• M6: 1,534,725 km (0.096 R)
• M7: 2,251,747 km (0.11 R)
• M8: 2,826,502 km (0.07 R)
• M9: 4,909,503 km (0.114 R)
• M10: 5,205,856 km (0.12 R)
• M11: 6,630,028 km (0.044 R)
• M12: 7,712,817 km (0.096 R)
• M13: 8,622,522 km (0.1 R)
• M14: 10,065,693 km (0.039 R)
• M15: 10,762,071 km (0.032 R)
• M16: 18,776,627 km (0.08 R)
• M17: 19,258,033 km (0.088 R)
• M18: 20,329,453 km (0.099 R)
• M19: 21,180,067 km (0.099 R)
• M20: 22,054,316 km (0.119 R)
• M21: 24,344,809 km (0.11 R)
• M22: 25,110,003 km (0.079 R)
• M23: 26,487,500 km (0.105 R)
• M24: 27,707,770 km (0.088 R)
• M25: 31,032,582 km (0.045 R)
• M26: 37,065,416 km (0.077 R)
• M27: 39,629,972 km (0.101 R)
• M28: 40,821,669 km (0.117 R)
• M29: 46,117,583 km (0.114 R)
• M30: 49,231,911 km (0.031 R)
• M31: 50,146,702 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 781

Radius: 4.9

Gravity: 32.53 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 7.93 AU - 8.23 AU

Year: 16145 Days

Day: 15 Hours

Environment

Temp: -236 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 68,913,432 km

• M1: 61,036 km (0.077 R)
• M2: 375,939 km (0.071 R)
• M3: 726,298 km (0.038 R)
• M4: 887,714 km (0.1 R)
• M5: 1,243,308 km (0.075 R)
• M6: 1,540,260 km (0.075 R)
• M7: 1,938,639 km (0.085 R)
• M8: 2,719,689 km (0.066 R)
• M9: 4,467,441 km (0.105 R)
• M10: 5,459,125 km (0.058 R)
• M11: 6,377,058 km (0.071 R)
• M12: 6,762,721 km (0.09 R)
• M13: 8,161,312 km (0.107 R)
• M14: 11,145,490 km (0.073 R)
• M15: 12,812,010 km (0.099 R)
• M16: 15,308,051 km (0.104 R)
• M17: 16,470,426 km (0.081 R)
• M18: 16,951,384 km (0.102 R)
• M19: 17,857,647 km (0.103 R)
• M20: 19,945,884 km (0.107 R)
• M21: 30,285,491 km (0.096 R)
• M22: 35,711,555 km (0.105 R)
• M23: 42,195,875 km (0.108 R)
• M24: 44,161,291 km (0.105 R)
• M25: 47,463,515 km (0.072 R)
• M26: 54,377,928 km (0.111 R)
• M27: 63,290,222 km (0.084 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: 526 - 17,253 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit