🌌 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 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.2

Radius: 11.3

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.45 AU - 0.59 AU

Year: 254 Days

Day: 9.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,674,620 km

• M1: 140,772 km (0.081 R)
• M2: 716,125 km (0.102 R)
• M3: 1,077,853 km (0.1 R)
• M4: 1,440,328 km (0.087 R)
• M5: 1,828,684 km (0.101 R)
• M6: 2,192,656 km (0.112 R)
• M7: 2,944,535 km (0.111 R)
• M8: 3,323,167 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.3

Radius: 8.4

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.42 AU - 0.64 AU

Year: 262 Days

Day: 7.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 53.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,674,620 km

• M1: 104,569 km (0.056 R)
• M2: 378,782 km (0.096 R)
• M3: 687,552 km (0.039 R)
• M4: 958,773 km (0.067 R)
• M5: 1,587,682 km (0.097 R)
• M6: 1,874,611 km (0.098 R)
• M7: 2,210,757 km (0.106 R)
• M8: 2,644,292 km (0.119 R)
• M9: 2,916,710 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 9.5

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.57 AU - 0.81 AU

Year: 389 Days

Day: 8 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,674,620 km

• M1: 118,182 km (0.076 R)
• M2: 419,772 km (0.081 R)
• M3: 727,046 km (0.08 R)
• M4: 1,406,818 km (0.101 R)
• M5: 1,754,783 km (0.113 R)
• M6: 2,502,473 km (0.075 R)
• M7: 2,944,236 km (0.055 R)
• M8: 3,556,839 km (0.037 R)
• M9: 3,945,494 km (0.098 R)
• M10: 4,376,336 km (0.047 R)
• M11: 4,778,904 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.2

Radius: 9.3

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.83 AU - 0.91 AU

Year: 550 Days

Day: 8.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,674,620 km

• M1: 115,639 km (0.105 R)
• M2: 414,984 km (0.09 R)
• M3: 804,388 km (0.087 R)
• M4: 1,293,124 km (0.077 R)
• M5: 1,666,221 km (0.098 R)
• M6: 2,410,470 km (0.033 R)
• M7: 3,867,554 km (0.052 R)
• M8: 4,232,573 km (0.084 R)
• M9: 4,667,005 km (0.071 R)
• M10: 5,280,954 km (0.11 R)
• M11: 6,151,016 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.2

Radius: 11

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1 AU - 1.06 AU

Year: 709 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,674,620 km

• M1: 136,882 km (0.05 R)
• M2: 506,239 km (0.037 R)
• M3: 962,961 km (0.12 R)
• M4: 1,945,520 km (0.094 R)
• M5: 2,386,834 km (0.1 R)
• M6: 2,740,932 km (0.1 R)
• M7: 3,976,611 km (0.057 R)
• M8: 4,429,443 km (0.118 R)
• M9: 4,795,809 km (0.116 R)
• M10: 6,261,568 km (0.073 R)
• M11: 6,854,574 km (0.078 R)
• M12: 7,346,452 km (0.119 R)
• M13: 8,326,169 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.3

Radius: 8.3

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.2 AU - 1.36 AU

Year: 982 Days

Day: 9.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,674,620 km

• M1: 103,522 km (0.079 R)
• M2: 424,260 km (0.104 R)
• M3: 804,537 km (0.089 R)
• M4: 1,126,322 km (0.117 R)
• M5: 1,398,291 km (0.111 R)
• M6: 1,814,772 km (0.098 R)
• M7: 2,150,918 km (0.09 R)
• M8: 2,424,383 km (0.117 R)
• M9: 3,684,147 km (0.082 R)
• M10: 3,997,255 km (0.108 R)
• M11: 5,216,328 km (0.089 R)
• M12: 5,612,015 km (0.115 R)
• M13: 6,352,674 km (0.079 R)
• M14: 7,521,631 km (0.079 R)
• M15: 8,027,272 km (0.06 R)
• M16: 8,474,719 km (0.047 R)
• M17: 9,276,414 km (0.113 R)
• M18: 9,769,190 km (0.119 R)
• M19: 10,279,468 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361

Radius: 12.4

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.55 AU - 5.55 AU

Year: 6583 Days

Day: 7 Hours

Environment

Temp: -226 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,674,620 km

• M1: 156,928 km (0.071 R)
• M2: 678,426 km (0.076 R)
• M3: 1,791,584 km (0.107 R)
• M4: 2,407,329 km (0.047 R)
• M5: 3,438,208 km (0.106 R)
• M6: 4,743,449 km (0.108 R)
• M7: 7,441,596 km (0.099 R)
• M8: 8,571,210 km (0.067 R)
• M9: 9,728,350 km (0.117 R)
• M10: 12,449,385 km (0.088 R)
• M11: 13,511,380 km (0.085 R)
• M12: 14,144,927 km (0.047 R)
• M13: 14,853,273 km (0.119 R)
• M14: 15,931,276 km (0.079 R)
• M15: 16,519,195 km (0.068 R)
• M16: 17,738,418 km (0.11 R)
• M17: 18,691,506 km (0.108 R)
• M18: 19,880,061 km (0.075 R)
• M19: 20,355,633 km (0.039 R)
• M20: 21,828,125 km (0.082 R)
• M21: 27,837,172 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.5

Radius: 7.2

Gravity: 18.39 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 9.54 AU - 10.16 AU

Year: 20967 Days

Day: 24.3 Hours

Environment

Temp: -243 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,674,620 km

• M1: 89,609 km (0.096 R)
• M2: 448,345 km (0.113 R)
• M3: 1,183,170 km (0.106 R)
• M4: 1,507,947 km (0.074 R)
• M5: 2,550,195 km (0.087 R)
• M6: 2,801,071 km (0.112 R)
• M7: 3,124,052 km (0.106 R)
• M8: 3,532,006 km (0.082 R)
• M9: 4,141,916 km (0.104 R)
• M10: 4,634,841 km (0.077 R)
• M11: 5,446,559 km (0.087 R)
• M12: 5,695,041 km (0.052 R)
• M13: 6,860,708 km (0.052 R)
• M14: 8,339,782 km (0.083 R)
• M15: 10,457,041 km (0.085 R)
• M16: 13,957,781 km (0.101 R)
• M17: 16,309,758 km (0.114 R)
• M18: 20,862,620 km (0.095 R)
• M19: 21,166,154 km (0.063 R)
• M20: 21,678,527 km (0.112 R)
• M21: 25,730,535 km (0.085 R)
• M22: 27,629,081 km (0.112 R)
• M23: 29,112,942 km (0.112 R)
• M24: 35,151,161 km (0.107 R)
• M25: 40,387,386 km (0.114 R)
• M26: 41,813,353 km (0.053 R)
• M27: 48,204,623 km (0.085 R)
• M28: 49,091,289 km (0.104 R)
• M29: 50,169,591 km (0.082 R)
• M30: 55,604,481 km (0.089 R)
• M31: 59,370,309 km (0.111 R)
• M32: 62,042,725 km (0.067 R)
• M33: 66,746,082 km (0.113 R)
• M34: 75,896,385 km (0.1 R)
• M35: 76,855,008 km (0.061 R)
• M36: 78,307,903 km (0.061 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: 186 - 18,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit