🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.45 AU - 0.59 AU

Year: 242 Days

Day: 37.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315

Radius: 14.7

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.92 AU - 1 AU

Year: 607 Days

Day: 9.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,933,320 km

• M1: 182,809 km (0.079 R)
• M2: 680,371 km (0.088 R)
• M3: 1,212,940 km (0.063 R)
• M4: 1,847,085 km (0.119 R)
• M5: 2,388,928 km (0.083 R)
• M6: 3,312,695 km (0.106 R)
• M7: 4,408,051 km (0.091 R)
• M8: 5,248,791 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.7

Radius: 11.2

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.14 AU - 1.84 AU

Year: 1174 Days

Day: 8.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,933,320 km

• M1: 139,276 km (0.09 R)
• M2: 499,358 km (0.107 R)
• M3: 899,682 km (0.08 R)
• M4: 1,308,981 km (0.086 R)
• M5: 1,951,504 km (0.078 R)
• M6: 2,473,750 km (0.083 R)
• M7: 4,512,171 km (0.086 R)
• M8: 6,448,267 km (0.091 R)
• M9: 8,165,052 km (0.088 R)
• M10: 8,603,224 km (0.094 R)
• M11: 8,970,786 km (0.084 R)
• M12: 10,105,785 km (0.047 R)
• M13: 10,515,384 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.1

Radius: 8.7

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.51 AU - 3.11 AU

Year: 3041 Days

Day: 11.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,933,320 km

• M1: 110,852 km (0.085 R)
• M2: 607,367 km (0.113 R)
• M3: 965,804 km (0.069 R)
• M4: 1,275,920 km (0.116 R)
• M5: 1,561,054 km (0.113 R)
• M6: 2,148,525 km (0.087 R)
• M7: 2,634,419 km (0.114 R)
• M8: 3,236,700 km (0.05 R)
• M9: 4,317,694 km (0.089 R)
• M10: 4,991,333 km (0.075 R)
• M11: 5,867,528 km (0.095 R)
• M12: 6,189,163 km (0.095 R)
• M13: 6,918,154 km (0.102 R)
• M14: 7,461,643 km (0.116 R)
• M15: 9,111,408 km (0.1 R)
• M16: 10,785,408 km (0.082 R)
• M17: 12,466,589 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.7

Radius: 14.1

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.01 AU - 3.31 AU

Year: 3627 Days

Day: 5.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,933,320 km

• M1: 175,329 km (0.081 R)
• M2: 711,936 km (0.05 R)
• M3: 1,159,683 km (0.084 R)
• M4: 1,705,715 km (0.063 R)
• M5: 2,479,884 km (0.097 R)
• M6: 3,164,145 km (0.084 R)
• M7: 3,607,403 km (0.085 R)
• M8: 9,198,623 km (0.086 R)
• M9: 15,655,866 km (0.081 R)
• M10: 16,323,671 km (0.106 R)
• M11: 17,063,881 km (0.109 R)
• M12: 17,992,884 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.1

Radius: 10.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.74 AU - 5.9 AU

Year: 6833 Days

Day: 9.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,933,320 km

• M1: 129,402 km (0.034 R)
• M2: 691,591 km (0.113 R)
• M3: 1,209,499 km (0.073 R)
• M4: 1,542,354 km (0.113 R)
• M5: 2,459,090 km (0.085 R)
• M6: 2,918,505 km (0.092 R)
• M7: 3,415,918 km (0.03 R)
• M8: 6,446,322 km (0.092 R)
• M9: 14,194,893 km (0.098 R)
• M10: 15,051,640 km (0.117 R)
• M11: 16,049,608 km (0.076 R)
• M12: 17,714,482 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.5

Radius: 6.3

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.26 AU - 7.56 AU

Year: 10479 Days

Day: 17.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,933,320 km

• M1: 78,539 km (0.095 R)
• M2: 299,794 km (0.084 R)
• M3: 755,768 km (0.112 R)
• M4: 2,248,157 km (0.071 R)
• M5: 3,131,532 km (0.098 R)
• M6: 3,766,725 km (0.075 R)
• M7: 4,252,619 km (0.105 R)
• M8: 5,144,222 km (0.11 R)
• M9: 6,252,742 km (0.101 R)
• M10: 7,218,696 km (0.096 R)
• M11: 10,852,129 km (0.1 R)
• M12: 14,772,491 km (0.117 R)
• M13: 16,347,756 km (0.082 R)
• M14: 16,662,959 km (0.083 R)
• M15: 17,898,188 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.7

Radius: 7.9

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.64 AU - 9.06 AU

Year: 12866 Days

Day: 19.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,933,320 km

• M1: 98,435 km (0.081 R)
• M2: 517,309 km (0.098 R)
• M3: 902,674 km (0.111 R)
• M4: 1,982,770 km (0.102 R)
• M5: 2,353,922 km (0.105 R)
• M6: 2,606,444 km (0.102 R)
• M7: 5,140,033 km (0.102 R)
• M8: 6,383,790 km (0.1 R)
• M9: 6,762,422 km (0.036 R)
• M10: 8,518,402 km (0.108 R)
• M11: 9,213,284 km (0.102 R)
• M12: 10,558,468 km (0.089 R)
• M13: 12,432,780 km (0.049 R)
• M14: 12,963,852 km (0.071 R)
• M15: 13,882,533 km (0.031 R)
• M16: 16,055,292 km (0.1 R)
• M17: 16,827,217 km (0.103 R)
• M18: 17,404,067 km (0.095 R)
• M19: 18,369,422 km (0.104 R)
• M20: 18,826,892 km (0.086 R)
• M21: 20,083,664 km (0.077 R)
• M22: 22,851,075 km (0.101 R)
• M23: 25,484,446 km (0.081 R)
• M24: 26,437,534 km (0.1 R)
• M25: 27,020,667 km (0.096 R)
• M26: 28,617,624 km (0.038 R)
• M27: 29,129,398 km (0.12 R)
• M28: 29,543,186 km (0.08 R)
• M29: 30,276,664 km (0.102 R)
• M30: 33,332,201 km (0.104 R)
• M31: 40,560,321 km (0.047 R)
• M32: 40,946,882 km (0.069 R)
• M33: 44,264,664 km (0.12 R)
• M34: 45,363,011 km (0.084 R)
• M35: 47,757,175 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 919.8

Radius: 4.7

Gravity: 41.64 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.3 AU - 9.5 AU

Year: 14337 Days

Day: 21 Hours

Environment

Temp: -217 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,933,320 km

• M1: 58,642 km (0.085 R)
• M2: 263,292 km (0.053 R)
• M3: 654,341 km (0.098 R)
• M4: 1,440,328 km (0.114 R)
• M5: 2,059,813 km (0.104 R)
• M6: 2,675,558 km (0.118 R)
• M7: 3,245,227 km (0.047 R)
• M8: 3,715,562 km (0.109 R)
• M9: 4,554,208 km (0.093 R)
• M10: 5,703,269 km (0.056 R)
• M11: 6,220,878 km (0.107 R)
• M12: 7,077,625 km (0.119 R)
• M13: 7,817,536 km (0.077 R)
• M14: 13,715,582 km (0.11 R)
• M15: 14,934,655 km (0.096 R)
• M16: 19,284,213 km (0.105 R)
• M17: 20,627,153 km (0.059 R)
• M18: 24,305,914 km (0.04 R)
• M19: 29,781,346 km (0.049 R)
• M20: 34,453,586 km (0.104 R)
• M21: 34,841,942 km (0.05 R)
• M22: 38,887,966 km (0.119 R)
• M23: 45,217,004 km (0.12 R)
• M24: 51,859,149 km (0.119 R)
• M25: 52,028,793 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.9

Radius: 4.4

Gravity: 19.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.22 AU - 9.62 AU

Year: 14391 Days

Day: 21.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,933,320 km

• M1: 55,052 km (0.045 R)
• M2: 236,963 km (0.091 R)
• M3: 578,645 km (0.072 R)
• M4: 761,603 km (0.052 R)
• M5: 972,536 km (0.118 R)
• M6: 1,246,150 km (0.115 R)
• M7: 1,613,712 km (0.034 R)
• M8: 2,032,437 km (0.083 R)
• M9: 2,193,254 km (0.095 R)
• M10: 2,968,171 km (0.082 R)
• M11: 5,605,432 km (0.084 R)
• M12: 5,815,767 km (0.099 R)
• M13: 6,252,144 km (0.107 R)
• M14: 6,987,417 km (0.1 R)
• M15: 7,313,690 km (0.047 R)
• M16: 7,522,679 km (0.08 R)
• M17: 7,735,556 km (0.051 R)
• M18: 8,128,999 km (0.105 R)
• M19: 8,398,574 km (0.108 R)
• M20: 8,955,677 km (0.04 R)
• M21: 10,246,706 km (0.12 R)
• M22: 10,403,335 km (0.096 R)
• M23: 12,057,588 km (0.106 R)
• M24: 12,232,169 km (0.093 R)
• M25: 14,135,503 km (0.114 R)
• M26: 15,876,972 km (0.107 R)
• M27: 16,298,239 km (0.112 R)
• M28: 17,236,517 km (0.06 R)
• M29: 22,560,855 km (0.057 R)
• M30: 24,833,995 km (0.086 R)
• M31: 30,903,180 km (0.08 R)
• M32: 31,780,272 km (0.086 R)
• M33: 33,929,844 km (0.109 R)
• M34: 40,434,360 km (0.096 R)
• M35: 41,880,971 km (0.088 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: 163 - 10,332 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit