🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.57 AU - 0.59 AU

Year: 290 Days

Day: 33 Hours

Environment

Temp: -136 °C

Axial Tilt: 22 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.9

Radius: 14.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.65 AU - 0.75 AU

Year: 384 Days

Day: 10.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 51,605,984 km

• M1: 175,329 km (0.067 R)
• M2: 681,269 km (0.088 R)
• M3: 2,700,391 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.4

Radius: 8.4

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.2 AU - 4.84 AU

Year: 5287 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,605,984 km

• M1: 104,419 km (0.074 R)
• M2: 404,064 km (0.115 R)
• M3: 675,285 km (0.09 R)
• M4: 1,773,782 km (0.076 R)
• M5: 2,056,821 km (0.11 R)
• M6: 2,327,743 km (0.049 R)
• M7: 2,684,384 km (0.099 R)
• M8: 3,877,427 km (0.114 R)
• M9: 5,094,705 km (0.091 R)
• M10: 5,646,871 km (0.096 R)
• M11: 7,735,855 km (0.063 R)
• M12: 11,010,852 km (0.066 R)
• M13: 13,134,543 km (0.117 R)
• M14: 14,027,044 km (0.073 R)
• M15: 14,709,959 km (0.079 R)
• M16: 15,466,176 km (0.106 R)
• M17: 16,089,550 km (0.096 R)
• M18: 18,288,938 km (0.036 R)
• M19: 19,045,006 km (0.102 R)
• M20: 20,125,850 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.3

Radius: 8.6

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.99 AU - 4.87 AU

Year: 6117 Days

Day: 13.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,605,984 km

• M1: 106,962 km (0.118 R)
• M2: 410,646 km (0.089 R)
• M3: 744,100 km (0.112 R)
• M4: 1,049,878 km (0.102 R)
• M5: 1,464,414 km (0.099 R)
• M6: 1,840,951 km (0.119 R)
• M7: 2,169,169 km (0.103 R)
• M8: 2,809,897 km (0.085 R)
• M9: 4,755,866 km (0.108 R)
• M10: 5,261,507 km (0.082 R)
• M11: 6,119,002 km (0.103 R)
• M12: 6,513,940 km (0.063 R)
• M13: 7,501,585 km (0.111 R)
• M14: 8,831,211 km (0.038 R)
• M15: 9,949,156 km (0.079 R)
• M16: 11,353,282 km (0.118 R)
• M17: 12,153,929 km (0.071 R)
• M18: 14,607,334 km (0.116 R)
• M19: 15,675,164 km (0.103 R)
• M20: 16,794,306 km (0.105 R)
• M21: 17,766,692 km (0.09 R)
• M22: 23,120,052 km (0.068 R)
• M23: 24,485,880 km (0.098 R)
• M24: 26,075,358 km (0.054 R)
• M25: 29,366,062 km (0.051 R)
• M26: 30,395,295 km (0.053 R)
• M27: 34,136,289 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.2

Radius: 13.4

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.89 AU - 5.31 AU

Year: 7556 Days

Day: 13.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 123 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,605,984 km

• M1: 166,802 km (0.115 R)
• M2: 799,451 km (0.079 R)
• M3: 1,348,774 km (0.104 R)
• M4: 2,119,353 km (0.037 R)
• M5: 2,597,617 km (0.103 R)
• M6: 4,120,973 km (0.048 R)
• M7: 5,369,816 km (0.114 R)
• M8: 6,113,467 km (0.084 R)
• M9: 7,374,577 km (0.074 R)
• M10: 8,294,454 km (0.112 R)
• M11: 8,802,339 km (0.102 R)
• M12: 11,660,705 km (0.108 R)
• M13: 13,807,584 km (0.115 R)
• M14: 14,522,363 km (0.11 R)
• M15: 15,847,650 km (0.064 R)
• M16: 17,887,866 km (0.101 R)
• M17: 21,742,106 km (0.105 R)
• M18: 23,013,837 km (0.102 R)
• M19: 31,236,035 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.1

Radius: 6.3

Gravity: 23.96 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.85 AU - 8.51 AU

Year: 13962 Days

Day: 20 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,605,984 km

• M1: 84,074 km (0.061 R)
• M2: 612,154 km (0.113 R)
• M3: 955,332 km (0.082 R)
• M4: 1,237,623 km (0.08 R)
• M5: 2,203,726 km (0.067 R)
• M6: 3,013,200 km (0.082 R)
• M7: 4,543,587 km (0.1 R)
• M8: 5,346,329 km (0.073 R)
• M9: 6,363,295 km (0.064 R)
• M10: 7,549,905 km (0.108 R)
• M11: 8,121,968 km (0.08 R)
• M12: 10,352,921 km (0.051 R)
• M13: 12,112,491 km (0.102 R)
• M14: 12,369,949 km (0.115 R)
• M15: 13,299,699 km (0.087 R)
• M16: 17,982,262 km (0.117 R)
• M17: 18,486,557 km (0.052 R)
• M18: 20,056,138 km (0.063 R)
• M19: 26,034,368 km (0.03 R)
• M20: 26,355,704 km (0.073 R)
• M21: 27,778,829 km (0.064 R)
• M22: 28,339,521 km (0.104 R)
• M23: 29,715,971 km (0.071 R)
• M24: 35,537,273 km (0.112 R)
• M25: 43,112,311 km (0.09 R)
• M26: 53,746,775 km (0.053 R)
• M27: 54,792,165 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185

Radius: 7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.7 AU - 12.78 AU

Year: 21496 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,605,984 km

• M1: 87,066 km (0.088 R)
• M2: 407,953 km (0.078 R)
• M3: 1,423,125 km (0.088 R)
• M4: 1,791,135 km (0.1 R)
• M5: 4,386,509 km (0.068 R)
• M6: 6,840,961 km (0.098 R)
• M7: 8,752,373 km (0.098 R)
• M8: 9,932,401 km (0.06 R)
• M9: 15,169,523 km (0.092 R)
• M10: 16,938,069 km (0.118 R)
• M11: 20,710,928 km (0.064 R)
• M12: 22,613,513 km (0.037 R)
• M13: 26,366,026 km (0.087 R)
• M14: 32,400,804 km (0.055 R)
• M15: 36,161,994 km (0.05 R)
• M16: 42,198,717 km (0.032 R)
• M17: 43,702,475 km (0.11 R)
• M18: 44,537,680 km (0.092 R)
• M19: 49,022,923 km (0.032 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: 533 - 11,874 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit