🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.51 AU - 0.55 AU

Year: 245 Days

Day: 38.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.4

Radius: 12.5

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.72 AU - 1.16 AU

Year: 579 Days

Day: 14.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,526,033 km

• M1: 155,731 km (0.081 R)
• M2: 549,473 km (0.115 R)
• M3: 967,898 km (0.119 R)
• M4: 1,390,512 km (0.102 R)
• M5: 1,812,977 km (0.096 R)
• M6: 2,455,499 km (0.113 R)
• M7: 2,926,284 km (0.093 R)
• M8: 3,435,665 km (0.045 R)
• M9: 4,336,543 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.6

Radius: 12

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.13 AU - 1.13 AU

Year: 764 Days

Day: 10.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,526,033 km

• M1: 149,598 km (0.084 R)
• M2: 619,186 km (0.106 R)
• M3: 1,174,194 km (0.074 R)
• M4: 1,564,644 km (0.034 R)
• M5: 2,107,984 km (0.101 R)
• M6: 2,507,260 km (0.116 R)
• M7: 3,041,175 km (0.089 R)
• M8: 3,638,220 km (0.115 R)
• M9: 4,366,313 km (0.102 R)
• M10: 4,743,898 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.4

Radius: 10.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.19 AU - 2.25 AU

Year: 2103 Days

Day: 7.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,526,033 km

• M1: 131,497 km (0.11 R)
• M2: 526,734 km (0.073 R)
• M3: 880,383 km (0.043 R)
• M4: 1,240,166 km (0.112 R)
• M5: 1,866,682 km (0.079 R)
• M6: 2,589,090 km (0.111 R)
• M7: 2,979,840 km (0.077 R)
• M8: 3,441,050 km (0.06 R)
• M9: 4,123,965 km (0.081 R)
• M10: 4,717,868 km (0.066 R)
• M11: 5,055,959 km (0.105 R)
• M12: 5,938,886 km (0.105 R)
• M13: 6,796,231 km (0.114 R)
• M14: 7,981,196 km (0.084 R)
• M15: 8,434,178 km (0.097 R)
• M16: 9,928,960 km (0.089 R)
• M17: 11,344,755 km (0.036 R)
• M18: 12,027,669 km (0.12 R)
• M19: 12,890,699 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.7

Radius: 11

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.65 AU - 2.81 AU

Year: 2868 Days

Day: 13.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,526,033 km

• M1: 138,677 km (0.088 R)
• M2: 545,733 km (0.043 R)
• M3: 1,003,802 km (0.119 R)
• M4: 1,603,839 km (0.086 R)
• M5: 2,092,126 km (0.104 R)
• M6: 2,522,071 km (0.066 R)
• M7: 2,941,992 km (0.103 R)
• M8: 3,601,120 km (0.084 R)
• M9: 4,964,705 km (0.11 R)
• M10: 9,301,098 km (0.105 R)
• M11: 10,032,332 km (0.027 R)
• M12: 10,677,548 km (0.069 R)
• M13: 11,052,440 km (0.113 R)
• M14: 12,503,240 km (0.11 R)
• M15: 12,873,196 km (0.096 R)
• M16: 14,834,574 km (0.088 R)
• M17: 16,596,537 km (0.082 R)
• M18: 17,384,619 km (0.112 R)
• M19: 18,733,393 km (0.104 R)
• M20: 21,970,990 km (0.085 R)
• M21: 23,336,669 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.2

Radius: 12.6

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.21 AU - 6.03 AU

Year: 7366 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 106.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,526,033 km

• M1: 157,377 km (0.101 R)
• M2: 950,096 km (0.052 R)
• M3: 1,545,944 km (0.077 R)
• M4: 2,763,671 km (0.077 R)
• M5: 3,999,798 km (0.103 R)
• M6: 4,949,745 km (0.091 R)
• M7: 5,707,009 km (0.103 R)
• M8: 8,190,932 km (0.094 R)
• M9: 10,500,574 km (0.089 R)
• M10: 12,638,178 km (0.09 R)
• M11: 13,689,103 km (0.092 R)
• M12: 17,262,397 km (0.098 R)
• M13: 23,506,164 km (0.082 R)
• M14: 27,415,605 km (0.119 R)
• M15: 28,285,367 km (0.117 R)
• M16: 30,695,239 km (0.034 R)
• M17: 31,423,182 km (0.091 R)
• M18: 35,577,066 km (0.107 R)
• M19: 41,835,793 km (0.098 R)
• M20: 43,118,145 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.5

Radius: 6.4

Gravity: 15.2 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.77 AU - 9.01 AU

Year: 16853 Days

Day: 21.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,526,033 km

• M1: 80,184 km (0.059 R)
• M2: 283,937 km (0.106 R)
• M3: 559,047 km (0.07 R)
• M4: 769,382 km (0.094 R)
• M5: 1,430,455 km (0.097 R)
• M6: 1,765,554 km (0.049 R)
• M7: 2,823,510 km (0.107 R)
• M8: 3,042,521 km (0.092 R)
• M9: 4,639,030 km (0.061 R)
• M10: 4,910,401 km (0.112 R)
• M11: 5,156,639 km (0.084 R)
• M12: 5,374,154 km (0.073 R)
• M13: 6,103,892 km (0.037 R)
• M14: 6,471,903 km (0.08 R)
• M15: 6,897,808 km (0.099 R)
• M16: 7,342,413 km (0.106 R)
• M17: 8,387,504 km (0.052 R)
• M18: 8,688,944 km (0.112 R)
• M19: 9,049,774 km (0.12 R)
• M20: 11,736,701 km (0.092 R)
• M21: 12,695,175 km (0.091 R)
• M22: 14,839,810 km (0.087 R)
• M23: 16,422,705 km (0.115 R)
• M24: 18,449,756 km (0.067 R)
• M25: 18,703,773 km (0.105 R)
• M26: 18,960,034 km (0.118 R)
• M27: 22,798,715 km (0.102 R)
• M28: 23,883,599 km (0.119 R)
• M29: 27,564,006 km (0.066 R)
• M30: 29,365,613 km (0.076 R)
• M31: 36,955,461 km (0.078 R)
• M32: 37,224,289 km (0.032 R)
• M33: 39,282,456 km (0.097 R)
• M34: 40,695,857 km (0.086 R)
• M35: 47,795,173 km (0.109 R)
• M36: 50,223,596 km (0.055 R)
• M37: 55,325,033 km (0.055 R)
• M38: 61,700,595 km (0.07 R)
• M39: 63,223,651 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.3

Radius: 5.3

Gravity: 15.75 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.48 AU - 10.68 AU

Year: 20348 Days

Day: 24.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,526,033 km

• M1: 68,067 km (0.066 R)
• M2: 299,345 km (0.107 R)
• M3: 655,388 km (0.107 R)
• M4: 1,720,525 km (0.078 R)
• M5: 4,099,879 km (0.106 R)
• M6: 10,765,212 km (0.043 R)
• M7: 11,489,116 km (0.068 R)
• M8: 16,605,064 km (0.107 R)
• M9: 31,242,169 km (0.034 R)
• M10: 36,978,649 km (0.036 R)
• M11: 38,480,462 km (0.098 R)
• M12: 45,202,343 km (0.113 R)
• M13: 63,967,601 km (0.063 R)
• M14: 64,162,078 km (0.094 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 12,111 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit