🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.5

Radius: 14.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.51 AU - 0.55 AU

Year: 262 Days

Day: 9.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,669,891 km

• M1: 178,021 km (0.096 R)
• M2: 851,810 km (0.07 R)
• M3: 1,350,121 km (0.104 R)
• M4: 1,809,536 km (0.115 R)
• M5: 2,459,090 km (0.057 R)
• M6: 3,159,058 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.2

Radius: 9.8

Gravity: 9.64 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.87 AU - 1.17 AU

Year: 699 Days

Day: 5.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,669,891 km

• M1: 122,221 km (0.033 R)
• M2: 624,122 km (0.033 R)
• M3: 1,060,499 km (0.09 R)
• M4: 1,557,613 km (0.066 R)
• M5: 1,879,398 km (0.118 R)
• M6: 2,185,026 km (0.093 R)
• M7: 2,695,155 km (0.08 R)
• M8: 3,125,249 km (0.097 R)
• M9: 3,572,248 km (0.116 R)
• M10: 4,314,851 km (0.096 R)
• M11: 4,646,061 km (0.101 R)
• M12: 4,994,475 km (0.1 R)
• M13: 5,588,228 km (0.115 R)
• M14: 6,501,972 km (0.104 R)
• M15: 8,650,048 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256

Radius: 9.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.01 AU - 1.19 AU

Year: 782 Days

Day: 11.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,669,891 km

• M1: 121,922 km (0.102 R)
• M2: 489,335 km (0.093 R)
• M3: 914,941 km (0.066 R)
• M4: 1,738,178 km (0.107 R)
• M5: 2,492,301 km (0.12 R)
• M6: 3,689,532 km (0.049 R)
• M7: 4,061,881 km (0.108 R)
• M8: 5,120,586 km (0.085 R)
• M9: 5,432,946 km (0.078 R)
• M10: 5,952,050 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 9

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.72 AU - 2.8 AU

Year: 2304 Days

Day: 14.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,669,891 km

• M1: 112,049 km (0.084 R)
• M2: 392,096 km (0.039 R)
• M3: 916,287 km (0.117 R)
• M4: 1,230,891 km (0.118 R)
• M5: 2,406,581 km (0.095 R)
• M6: 2,849,091 km (0.111 R)
• M7: 4,127,555 km (0.043 R)
• M8: 5,440,276 km (0.049 R)
• M9: 5,925,871 km (0.106 R)
• M10: 6,387,380 km (0.119 R)
• M11: 6,790,098 km (0.112 R)
• M12: 7,499,042 km (0.056 R)
• M13: 8,541,141 km (0.075 R)
• M14: 9,030,475 km (0.11 R)
• M15: 9,993,886 km (0.032 R)
• M16: 10,797,675 km (0.111 R)
• M17: 14,357,356 km (0.094 R)
• M18: 15,957,904 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.7

Radius: 8.7

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.38 AU - 2.88 AU

Year: 2893 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,669,891 km

• M1: 108,309 km (0.103 R)
• M2: 463,155 km (0.087 R)
• M3: 977,323 km (0.089 R)
• M4: 1,254,977 km (0.108 R)
• M5: 3,773,606 km (0.079 R)
• M6: 5,277,962 km (0.105 R)
• M7: 6,384,089 km (0.046 R)
• M8: 6,922,492 km (0.094 R)
• M9: 7,374,876 km (0.081 R)
• M10: 8,528,126 km (0.069 R)
• M11: 9,727,751 km (0.109 R)
• M12: 12,831,907 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678

Radius: 11.1

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.45 AU - 3.21 AU

Year: 3229 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,669,891 km

• M1: 138,079 km (0.094 R)
• M2: 491,429 km (0.088 R)
• M3: 1,146,219 km (0.109 R)
• M4: 1,890,019 km (0.098 R)
• M5: 2,624,695 km (0.092 R)
• M6: 3,390,037 km (0.106 R)
• M7: 3,775,252 km (0.086 R)
• M8: 4,363,919 km (0.091 R)
• M9: 4,892,598 km (0.032 R)
• M10: 5,567,285 km (0.092 R)
• M11: 7,164,092 km (0.068 R)
• M12: 7,704,290 km (0.049 R)
• M13: 8,478,310 km (0.085 R)
• M14: 8,866,516 km (0.117 R)
• M15: 11,030,150 km (0.065 R)
• M16: 12,685,301 km (0.091 R)
• M17: 13,100,435 km (0.079 R)
• M18: 13,812,521 km (0.093 R)
• M19: 15,469,766 km (0.104 R)
• M20: 16,591,152 km (0.095 R)
• M21: 19,115,466 km (0.092 R)
• M22: 20,093,687 km (0.068 R)
• M23: 21,623,175 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.8

Radius: 9.9

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.83 AU - 4.15 AU

Year: 4422 Days

Day: 7.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,669,891 km

• M1: 124,316 km (0.117 R)
• M2: 668,403 km (0.069 R)
• M3: 1,107,174 km (0.094 R)
• M4: 1,596,359 km (0.099 R)
• M5: 2,161,091 km (0.076 R)
• M6: 2,671,968 km (0.098 R)
• M7: 3,878,175 km (0.108 R)
• M8: 7,352,586 km (0.063 R)
• M9: 10,262,115 km (0.093 R)
• M10: 11,262,476 km (0.094 R)
• M11: 11,909,636 km (0.07 R)
• M12: 13,057,800 km (0.111 R)
• M13: 14,796,426 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.3

Radius: 4.9

Gravity: 26.92 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.16 AU - 10.94 AU

Year: 20017 Days

Day: 18.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,669,891 km

• M1: 64,477 km (0.106 R)
• M2: 761,752 km (0.116 R)
• M3: 1,171,651 km (0.068 R)
• M4: 1,418,188 km (0.118 R)
• M5: 1,595,760 km (0.12 R)
• M6: 1,843,195 km (0.12 R)
• M7: 2,528,653 km (0.073 R)
• M8: 3,932,778 km (0.05 R)
• M9: 4,154,931 km (0.076 R)
• M10: 4,980,562 km (0.118 R)
• M11: 6,416,402 km (0.111 R)
• M12: 7,956,363 km (0.063 R)
• M13: 8,731,579 km (0.089 R)
• M14: 9,957,833 km (0.085 R)
• M15: 10,251,792 km (0.098 R)
• M16: 11,168,528 km (0.104 R)
• M17: 13,163,416 km (0.101 R)
• M18: 15,540,376 km (0.094 R)
• M19: 16,500,944 km (0.107 R)
• M20: 16,995,814 km (0.092 R)
• M21: 18,015,024 km (0.042 R)
• M22: 23,211,306 km (0.109 R)
• M23: 24,677,366 km (0.089 R)
• M24: 25,107,310 km (0.115 R)
• M25: 25,651,846 km (0.064 R)
• M26: 29,444,451 km (0.094 R)
• M27: 30,294,317 km (0.098 R)
• M28: 33,332,350 km (0.108 R)
• M29: 38,981,465 km (0.113 R)
• M30: 40,153,415 km (0.059 R)
• M31: 42,260,501 km (0.109 R)
• M32: 51,601,392 km (0.041 R)
• M33: 57,215,950 km (0.096 R)
• M34: 58,347,658 km (0.085 R)
• M35: 61,635,220 km (0.087 R)
• M36: 62,426,294 km (0.096 R)
• M37: 66,483,538 km (0.095 R)
• M38: 67,734,176 km (0.118 R)
• M39: 68,154,546 km (0.059 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: 420 - 18,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit