🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.6

Radius: 10.3

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.02 AU - 1.52 AU

Year: 988 Days

Day: 7.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 91.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,781,439 km

• M1: 128,056 km (0.103 R)
• M2: 494,720 km (0.028 R)
• M3: 876,045 km (0.044 R)
• M4: 1,522,607 km (0.108 R)
• M5: 2,186,971 km (0.096 R)
• M6: 2,592,382 km (0.072 R)
• M7: 2,955,156 km (0.088 R)
• M8: 3,737,852 km (0.041 R)
• M9: 4,511,423 km (0.114 R)
• M10: 5,020,804 km (0.103 R)
• M11: 5,427,860 km (0.115 R)
• M12: 6,177,046 km (0.105 R)
• M13: 6,508,854 km (0.067 R)
• M14: 6,899,454 km (0.104 R)
• M15: 7,652,081 km (0.111 R)
• M16: 8,512,418 km (0.113 R)
• M17: 8,952,086 km (0.055 R)
• M18: 9,407,013 km (0.105 R)
• M19: 10,393,910 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.8

Radius: 12.6

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.98 AU - 1.62 AU

Year: 1023 Days

Day: 9.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,781,439 km

• M1: 157,527 km (0.032 R)
• M2: 574,905 km (0.107 R)
• M3: 1,030,131 km (0.096 R)
• M4: 1,495,530 km (0.093 R)
• M5: 1,925,025 km (0.118 R)
• M6: 2,681,542 km (0.096 R)
• M7: 3,325,561 km (0.039 R)
• M8: 3,859,775 km (0.119 R)
• M9: 4,369,604 km (0.093 R)
• M10: 4,785,636 km (0.11 R)
• M11: 5,356,950 km (0.109 R)
• M12: 6,175,699 km (0.048 R)
• M13: 6,920,098 km (0.115 R)
• M14: 7,915,822 km (0.098 R)
• M15: 8,691,187 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.42 AU - 1.7 AU

Year: 1345 Days

Day: 9.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,781,439 km

• M1: 111,899 km (0.086 R)
• M2: 415,284 km (0.095 R)
• M3: 776,413 km (0.103 R)
• M4: 1,181,374 km (0.102 R)
• M5: 1,689,858 km (0.1 R)
• M6: 2,059,065 km (0.103 R)
• M7: 2,643,095 km (0.106 R)
• M8: 3,000,036 km (0.095 R)
• M9: 3,632,685 km (0.059 R)
• M10: 4,155,380 km (0.088 R)
• M11: 5,032,622 km (0.051 R)
• M12: 5,447,158 km (0.111 R)
• M13: 6,216,839 km (0.071 R)
• M14: 6,518,129 km (0.068 R)
• M15: 6,806,554 km (0.097 R)
• M16: 7,481,090 km (0.075 R)
• M17: 8,457,366 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.8

Radius: 9.2

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.51 AU - 1.99 AU

Year: 1598 Days

Day: 14.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,781,439 km

• M1: 114,442 km (0.08 R)
• M2: 404,064 km (0.108 R)
• M3: 812,167 km (0.112 R)
• M4: 1,167,312 km (0.109 R)
• M5: 1,570,927 km (0.115 R)
• M6: 1,914,853 km (0.091 R)
• M7: 2,214,497 km (0.084 R)
• M8: 2,743,475 km (0.102 R)
• M9: 3,156,515 km (0.074 R)
• M10: 3,465,135 km (0.08 R)
• M11: 4,669,249 km (0.113 R)
• M12: 5,695,789 km (0.116 R)
• M13: 6,370,476 km (0.115 R)
• M14: 7,175,761 km (0.117 R)
• M15: 7,494,704 km (0.073 R)
• M16: 7,878,721 km (0.044 R)
• M17: 8,686,251 km (0.047 R)
• M18: 10,465,568 km (0.07 R)
• M19: 10,841,657 km (0.048 R)
• M20: 11,404,893 km (0.085 R)
• M21: 12,513,563 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.9

Radius: 8.3

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.8 AU - 2.44 AU

Year: 2131 Days

Day: 11.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,781,439 km

• M1: 103,223 km (0.06 R)
• M2: 724,802 km (0.1 R)
• M3: 1,116,150 km (0.072 R)
• M4: 1,437,037 km (0.098 R)
• M5: 1,851,423 km (0.118 R)
• M6: 2,526,558 km (0.104 R)
• M7: 2,804,362 km (0.116 R)
• M8: 3,211,866 km (0.106 R)
• M9: 4,434,978 km (0.114 R)
• M10: 4,696,476 km (0.113 R)
• M11: 5,361,887 km (0.076 R)
• M12: 5,799,909 km (0.038 R)
• M13: 6,064,249 km (0.098 R)
• M14: 6,721,432 km (0.116 R)
• M15: 10,594,820 km (0.081 R)
• M16: 11,736,402 km (0.109 R)
• M17: 12,876,637 km (0.109 R)
• M18: 13,203,807 km (0.038 R)
• M19: 14,003,109 km (0.081 R)
• M20: 14,392,811 km (0.111 R)
• M21: 15,148,580 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.8

Radius: 10.4

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.51 AU - 5.19 AU

Year: 6262 Days

Day: 10.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,781,439 km

• M1: 129,851 km (0.115 R)
• M2: 518,506 km (0.096 R)
• M3: 932,444 km (0.095 R)
• M4: 1,356,553 km (0.117 R)
• M5: 2,538,676 km (0.06 R)
• M6: 3,342,166 km (0.062 R)
• M7: 4,330,858 km (0.089 R)
• M8: 4,906,511 km (0.049 R)
• M9: 5,504,154 km (0.119 R)
• M10: 6,210,705 km (0.104 R)
• M11: 7,043,367 km (0.094 R)
• M12: 10,593,923 km (0.097 R)
• M13: 12,653,287 km (0.109 R)
• M14: 14,417,794 km (0.11 R)
• M15: 17,672,296 km (0.047 R)
• M16: 22,101,141 km (0.107 R)
• M17: 22,464,215 km (0.102 R)
• M18: 23,053,181 km (0.047 R)
• M19: 23,576,924 km (0.114 R)
• M20: 25,832,112 km (0.108 R)
• M21: 27,552,337 km (0.071 R)
• M22: 28,142,351 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.2

Radius: 4.3

Gravity: 13.96 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.82 AU - 7.08 AU

Year: 10018 Days

Day: 22.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,781,439 km

• M1: 63,878 km (0.1 R)
• M2: 326,273 km (0.093 R)
• M3: 474,674 km (0.053 R)
• M4: 661,821 km (0.119 R)
• M5: 1,778,419 km (0.115 R)
• M6: 2,961,888 km (0.036 R)
• M7: 3,881,466 km (0.11 R)
• M8: 6,099,554 km (0.071 R)
• M9: 15,794,094 km (0.104 R)
• M10: 19,138,056 km (0.082 R)
• M11: 25,202,604 km (0.103 R)
• M12: 26,136,992 km (0.072 R)
• M13: 28,711,123 km (0.086 R)
• M14: 32,332,887 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.7

Radius: 7.9

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 6.69 AU - 7.01 AU

Year: 12375 Days

Day: 23.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,781,439 km

• M1: 98,286 km (0.073 R)
• M2: 724,502 km (0.045 R)
• M3: 1,011,282 km (0.067 R)
• M4: 1,387,071 km (0.09 R)
• M5: 1,702,424 km (0.115 R)
• M6: 2,015,083 km (0.112 R)
• M7: 2,716,249 km (0.062 R)
• M8: 3,123,304 km (0.039 R)
• M9: 4,363,022 km (0.109 R)
• M10: 5,299,804 km (0.118 R)
• M11: 5,696,388 km (0.108 R)
• M12: 6,112,569 km (0.06 R)
• M13: 14,333,421 km (0.079 R)
• M14: 15,699,549 km (0.099 R)
• M15: 16,937,920 km (0.042 R)
• M16: 18,166,118 km (0.1 R)
• M17: 19,068,044 km (0.083 R)
• M18: 21,535,960 km (0.108 R)
• M19: 23,587,246 km (0.108 R)
• M20: 25,485,942 km (0.119 R)
• M21: 29,380,423 km (0.083 R)
• M22: 30,517,218 km (0.103 R)
• M23: 31,362,146 km (0.087 R)
• M24: 32,549,206 km (0.105 R)
• M25: 35,589,633 km (0.079 R)
• M26: 36,525,667 km (0.114 R)
• M27: 38,324,731 km (0.073 R)
• M28: 39,432,054 km (0.117 R)
• M29: 40,181,988 km (0.107 R)
• M30: 43,941,532 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.7

Radius: 3.9

Gravity: 63.62 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.23 AU - 7.97 AU

Year: 14462 Days

Day: 16 Hours

Environment

Temp: -236 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 68,781,439 km

• M1: 49,966 km (0.104 R)
• M2: 199,564 km (0.058 R)
• M3: 380,278 km (0.119 R)
• M4: 550,371 km (0.067 R)
• M5: 780,302 km (0.109 R)
• M6: 1,059,303 km (0.115 R)
• M7: 1,256,622 km (0.096 R)
• M8: 1,742,217 km (0.068 R)
• M9: 2,037,224 km (0.106 R)
• M10: 3,228,621 km (0.083 R)
• M11: 3,731,420 km (0.06 R)
• M12: 4,316,796 km (0.055 R)
• M13: 4,648,305 km (0.111 R)
• M14: 6,105,388 km (0.068 R)
• M15: 6,437,944 km (0.12 R)
• M16: 8,384,961 km (0.03 R)
• M17: 8,743,696 km (0.068 R)
• M18: 11,735,205 km (0.109 R)
• M19: 12,248,924 km (0.112 R)
• M20: 12,710,433 km (0.101 R)
• M21: 13,459,171 km (0.116 R)
• M22: 13,668,309 km (0.107 R)
• M23: 14,599,855 km (0.086 R)
• M24: 14,746,909 km (0.105 R)
• M25: 15,649,583 km (0.046 R)
• M26: 15,803,519 km (0.045 R)
• M27: 22,824,746 km (0.093 R)
• M28: 23,222,077 km (0.082 R)
• M29: 24,544,971 km (0.104 R)
• M30: 26,132,953 km (0.089 R)
• M31: 34,065,380 km (0.073 R)
• M32: 40,641,403 km (0.092 R)
• M33: 42,110,305 km (0.097 R)
• M34: 51,673,049 km (0.096 R)
• M35: 54,800,991 km (0.069 R)
• M36: 57,868,944 km (0.065 R)
• M37: 60,101,992 km (0.092 R)
• M38: 64,147,118 km (0.116 R)
• M39: 64,344,139 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 15,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit