🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618

Radius: 8.9

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.87 AU - 0.91 AU

Year: 534 Days

Day: 8.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,323,032 km

• M1: 110,702 km (0.092 R)
• M2: 401,969 km (0.114 R)
• M3: 798,254 km (0.102 R)
• M4: 1,093,710 km (0.074 R)
• M5: 1,477,429 km (0.105 R)
• M6: 1,827,039 km (0.097 R)
• M7: 2,450,712 km (0.109 R)
• M8: 3,391,384 km (0.071 R)
• M9: 4,347,314 km (0.109 R)
• M10: 5,056,408 km (0.069 R)
• M11: 6,432,110 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.3

Radius: 9.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.25 AU - 1.31 AU

Year: 921 Days

Day: 14 Hours

Environment

Temp: -161 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,323,032 km

• M1: 115,639 km (0.047 R)
• M2: 425,307 km (0.075 R)
• M3: 726,447 km (0.097 R)
• M4: 1,105,827 km (0.077 R)
• M5: 1,466,807 km (0.068 R)
• M6: 2,005,659 km (0.094 R)
• M7: 2,610,333 km (0.066 R)
• M8: 2,974,903 km (0.042 R)
• M9: 3,321,671 km (0.117 R)
• M10: 3,807,266 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 11

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.13 AU - 1.57 AU

Year: 997 Days

Day: 6.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,323,032 km

• M1: 136,882 km (0.108 R)
• M2: 517,010 km (0.076 R)
• M3: 2,092,126 km (0.1 R)
• M4: 2,620,356 km (0.091 R)
• M5: 3,132,729 km (0.116 R)
• M6: 3,584,963 km (0.042 R)
• M7: 3,959,257 km (0.119 R)
• M8: 5,113,854 km (0.064 R)
• M9: 5,623,833 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.8

Radius: 13.5

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.35 AU - 3.59 AU

Year: 3254 Days

Day: 5.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,323,032 km

• M1: 168,746 km (0.082 R)
• M2: 588,817 km (0.107 R)
• M3: 1,839,755 km (0.082 R)
• M4: 2,501,276 km (0.059 R)
• M5: 3,567,760 km (0.08 R)
• M6: 5,721,071 km (0.084 R)
• M7: 7,642,955 km (0.076 R)
• M8: 8,141,715 km (0.1 R)
• M9: 11,897,219 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846

Radius: 6.9

Gravity: 17.77 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.15 AU - 6.33 AU

Year: 9911 Days

Day: 19 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 30,323,032 km

• M1: 86,168 km (0.089 R)
• M2: 441,463 km (0.035 R)
• M3: 674,986 km (0.101 R)
• M4: 1,003,652 km (0.068 R)
• M5: 1,230,293 km (0.072 R)
• M6: 1,970,354 km (0.077 R)
• M7: 2,255,188 km (0.074 R)
• M8: 2,506,812 km (0.091 R)
• M9: 5,800,807 km (0.037 R)
• M10: 6,351,028 km (0.028 R)
• M11: 6,776,335 km (0.096 R)
• M12: 8,669,795 km (0.115 R)
• M13: 9,586,980 km (0.042 R)
• M14: 10,408,272 km (0.075 R)
• M15: 13,339,343 km (0.06 R)
• M16: 14,101,394 km (0.096 R)
• M17: 16,633,638 km (0.073 R)
• M18: 20,185,241 km (0.098 R)
• M19: 21,103,772 km (0.038 R)
• M20: 23,294,483 km (0.11 R)
• M21: 25,632,398 km (0.101 R)
• M22: 26,313,966 km (0.069 R)
• M23: 27,208,113 km (0.116 R)
• M24: 28,638,867 km (0.043 R)
• M25: 33,576,943 km (0.119 R)
• M26: 35,221,771 km (0.097 R)
• M27: 37,414,727 km (0.05 R)
• M28: 40,740,437 km (0.111 R)
• M29: 42,746,096 km (0.06 R)
• M30: 43,980,577 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.6

Radius: 4.2

Gravity: 17.66 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.05 AU - 7.53 AU

Year: 11250 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,323,032 km

• M1: 52,210 km (0.11 R)
• M2: 659,577 km (0.042 R)
• M3: 1,645,128 km (0.051 R)
• M4: 4,511,573 km (0.062 R)
• M5: 4,766,039 km (0.106 R)
• M6: 7,902,657 km (0.104 R)
• M7: 11,605,354 km (0.091 R)
• M8: 18,374,358 km (0.108 R)
• M9: 21,372,599 km (0.088 R)
• M10: 23,152,814 km (0.074 R)
• M11: 25,647,358 km (0.099 R)
• M12: 31,774,438 km (0.084 R)
• M13: 32,186,879 km (0.099 R)
• M14: 32,917,216 km (0.104 R)
• M15: 33,445,596 km (0.071 R)
• M16: 37,189,432 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.6

Radius: 4.1

Gravity: 50.9 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 8.1 AU - 11.2 AU

Year: 19060 Days

Day: 20.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,323,032 km

• M1: 51,013 km (0.051 R)
• M2: 764,595 km (0.105 R)
• M3: 1,133,653 km (0.025 R)
• M4: 3,251,211 km (0.089 R)
• M5: 3,422,051 km (0.047 R)
• M6: 4,402,516 km (0.081 R)
• M7: 5,884,582 km (0.099 R)
• M8: 11,658,162 km (0.091 R)
• M9: 11,857,576 km (0.114 R)
• M10: 12,677,821 km (0.117 R)
• M11: 14,203,121 km (0.057 R)
• M12: 16,671,935 km (0.107 R)
• M13: 19,975,355 km (0.067 R)
• M14: 20,165,494 km (0.039 R)
• M15: 21,729,540 km (0.106 R)
• M16: 23,058,567 km (0.043 R)
• M17: 26,904,130 km (0.055 R)
• M18: 30,022,797 km (0.106 R)
• M19: 32,317,478 km (0.115 R)
• M20: 38,266,986 km (0.095 R)
• M21: 40,351,034 km (0.115 R)
• M22: 46,386,709 km (0.117 R)
• M23: 74,920,409 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46

Radius: 7.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.66 AU - 9.88 AU

Year: 19417 Days

Day: 23.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,323,032 km

• M1: 102,475 km (0.08 R)
• M2: 412,741 km (0.084 R)
• M3: 1,310,777 km (0.097 R)
• M4: 1,585,139 km (0.114 R)
• M5: 1,939,836 km (0.076 R)
• M6: 2,511,299 km (0.067 R)
• M7: 3,150,082 km (0.08 R)
• M8: 7,758,744 km (0.089 R)
• M9: 8,861,729 km (0.104 R)
• M10: 9,513,078 km (0.086 R)
• M11: 11,659,359 km (0.119 R)
• M12: 19,725,526 km (0.101 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 210 - 15,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit