🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718

Radius: 14.5

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.52 AU - 0.8 AU

Year: 358 Days

Day: 6.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,456,255 km

• M1: 182,061 km (0.104 R)
• M2: 845,527 km (0.064 R)
• M3: 1,556,416 km (0.065 R)
• M4: 2,014,934 km (0.05 R)
• M5: 2,584,004 km (0.117 R)
• M6: 3,173,270 km (0.099 R)
• M7: 3,766,575 km (0.025 R)
• M8: 4,419,869 km (0.074 R)
• M9: 5,102,933 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.5

Radius: 10.9

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.75 AU - 2.81 AU

Year: 3091 Days

Day: 6.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,456,255 km

• M1: 137,331 km (0.116 R)
• M2: 582,385 km (0.06 R)
• M3: 991,385 km (0.073 R)
• M4: 1,375,552 km (0.095 R)
• M5: 1,860,399 km (0.082 R)
• M6: 2,328,640 km (0.1 R)
• M7: 3,054,489 km (0.072 R)
• M8: 3,421,004 km (0.102 R)
• M9: 3,799,038 km (0.1 R)
• M10: 4,320,686 km (0.076 R)
• M11: 4,889,756 km (0.115 R)
• M12: 5,371,461 km (0.115 R)
• M13: 5,860,497 km (0.109 R)
• M14: 7,036,336 km (0.116 R)
• M15: 8,091,150 km (0.103 R)
• M16: 10,055,969 km (0.109 R)
• M17: 10,837,019 km (0.117 R)
• M18: 12,083,618 km (0.031 R)
• M19: 12,640,571 km (0.113 R)
• M20: 13,089,963 km (0.068 R)
• M21: 13,465,753 km (0.072 R)
• M22: 15,177,602 km (0.105 R)

Planet 3 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.2

Radius: 3.5

Gravity: 15.12 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.68 AU - 6.48 AU

Year: 9997 Days

Day: 16.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,456,255 km

• M1: 43,683 km (0.097 R)
• M2: 223,948 km (0.109 R)
• M3: 476,619 km (0.107 R)
• M4: 821,891 km (0.051 R)
• M5: 1,067,082 km (0.068 R)
• M6: 3,297,586 km (0.075 R)
• M7: 4,495,865 km (0.077 R)
• M8: 4,808,824 km (0.097 R)
• M9: 5,025,441 km (0.118 R)
• M10: 5,684,420 km (0.118 R)
• M11: 5,988,104 km (0.082 R)
• M12: 6,496,437 km (0.077 R)
• M13: 7,102,159 km (0.112 R)
• M14: 7,855,235 km (0.072 R)
• M15: 11,450,071 km (0.108 R)
• M16: 15,947,133 km (0.101 R)
• M17: 20,845,715 km (0.098 R)
• M18: 28,025,366 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.9

Radius: 7.9

Gravity: 14.45 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 9.15 AU - 10.29 AU

Year: 20208 Days

Day: 21.3 Hours

Environment

Temp: -243 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,456,255 km

• M1: 99,782 km (0.114 R)
• M2: 387,010 km (0.117 R)
• M3: 769,232 km (0.085 R)
• M4: 1,105,528 km (0.115 R)
• M5: 1,712,746 km (0.098 R)
• M6: 2,295,579 km (0.116 R)
• M7: 3,512,558 km (0.117 R)
• M8: 4,450,985 km (0.1 R)
• M9: 5,794,823 km (0.063 R)
• M10: 7,291,849 km (0.102 R)
• M11: 8,369,253 km (0.099 R)
• M12: 8,918,127 km (0.044 R)
• M13: 10,457,340 km (0.115 R)
• M14: 11,290,002 km (0.109 R)
• M15: 16,718,609 km (0.115 R)
• M16: 17,062,984 km (0.086 R)
• M17: 18,488,352 km (0.088 R)
• M18: 20,772,861 km (0.113 R)
• M19: 22,604,986 km (0.082 R)
• M20: 23,452,907 km (0.116 R)
• M21: 27,771,947 km (0.091 R)
• M22: 32,861,416 km (0.069 R)
• M23: 33,811,662 km (0.054 R)
• M24: 38,390,105 km (0.069 R)
• M25: 38,839,347 km (0.113 R)
• M26: 41,924,953 km (0.092 R)
• M27: 43,203,566 km (0.115 R)
• M28: 43,689,759 km (0.116 R)
• M29: 56,867,985 km (0.094 R)
• M30: 62,888,402 km (0.093 R)
• M31: 64,351,768 km (0.095 R)
• M32: 79,768,128 km (0.077 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.6

Radius: 5.7

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 8.43 AU - 11.19 AU

Year: 20490 Days

Day: 15.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,456,255 km

• M1: 70,909 km (0.118 R)
• M2: 297,550 km (0.032 R)
• M3: 2,060,561 km (0.075 R)
• M4: 3,238,794 km (0.069 R)
• M5: 3,493,409 km (0.063 R)
• M6: 4,460,709 km (0.064 R)
• M7: 5,631,163 km (0.043 R)
• M8: 7,727,777 km (0.102 R)
• M9: 8,091,001 km (0.062 R)
• M10: 9,554,666 km (0.107 R)
• M11: 11,948,232 km (0.117 R)
• M12: 12,495,312 km (0.085 R)
• M13: 13,639,586 km (0.118 R)
• M14: 15,060,766 km (0.045 R)
• M15: 15,342,309 km (0.032 R)
• M16: 19,744,525 km (0.078 R)
• M17: 23,292,089 km (0.104 R)
• M18: 26,521,159 km (0.093 R)
• M19: 31,388,027 km (0.069 R)
• M20: 33,610,154 km (0.107 R)
• M21: 48,873,774 km (0.06 R)
• M22: 50,426,151 km (0.079 R)
• M23: 54,781,543 km (0.09 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 282 - 13,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit