🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.9

Radius: 11.8

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 7.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,195,013 km

• M1: 146,756 km (0.097 R)
• M2: 588,967 km (0.057 R)
• M3: 1,155,045 km (0.118 R)
• M4: 1,811,032 km (0.102 R)
• M5: 2,322,357 km (0.082 R)
• M6: 2,740,035 km (0.108 R)
• M7: 3,627,599 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.9

Radius: 13.8

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.84 AU - 0.84 AU

Year: 505 Days

Day: 15 Hours

Environment

Temp: -157 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,195,013 km

• M1: 171,738 km (0.112 R)
• M2: 642,972 km (0.119 R)
• M3: 1,398,890 km (0.09 R)
• M4: 2,213,600 km (0.031 R)
• M5: 2,652,669 km (0.073 R)
• M6: 3,366,999 km (0.089 R)
• M7: 3,808,911 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750

Radius: 10.9

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.08 AU - 1.16 AU

Year: 778 Days

Day: 7.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,195,013 km

• M1: 135,536 km (0.114 R)
• M2: 563,086 km (0.115 R)
• M3: 1,128,267 km (0.062 R)
• M4: 1,477,877 km (0.108 R)
• M5: 2,002,816 km (0.088 R)
• M6: 2,603,901 km (0.08 R)
• M7: 3,124,202 km (0.1 R)
• M8: 4,407,303 km (0.096 R)
• M9: 6,619,407 km (0.058 R)
• M10: 7,174,265 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.4

Radius: 14.2

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.67 AU - 2.25 AU

Year: 1800 Days

Day: 12 Hours

Environment

Temp: -187 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,195,013 km

• M1: 176,974 km (0.112 R)
• M2: 752,627 km (0.035 R)
• M3: 1,552,676 km (0.109 R)
• M4: 2,161,689 km (0.067 R)
• M5: 2,838,919 km (0.102 R)
• M6: 3,319,577 km (0.101 R)
• M7: 3,807,864 km (0.117 R)
• M8: 5,713,741 km (0.092 R)
• M9: 7,931,230 km (0.102 R)
• M10: 8,729,185 km (0.043 R)
• M11: 9,668,062 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.3

Radius: 11.5

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.97 AU - 2.87 AU

Year: 2470 Days

Day: 11.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,195,013 km

• M1: 143,464 km (0.067 R)
• M2: 555,606 km (0.089 R)
• M3: 1,033,123 km (0.071 R)
• M4: 1,559,857 km (0.06 R)
• M5: 1,926,372 km (0.119 R)
• M6: 2,364,394 km (0.028 R)
• M7: 2,809,298 km (0.107 R)
• M8: 3,359,968 km (0.066 R)
• M9: 4,892,150 km (0.104 R)
• M10: 5,316,110 km (0.07 R)
• M11: 5,740,519 km (0.04 R)
• M12: 6,341,454 km (0.108 R)
• M13: 7,067,452 km (0.1 R)
• M14: 8,878,783 km (0.057 R)
• M15: 9,546,289 km (0.107 R)
• M16: 10,139,594 km (0.098 R)
• M17: 10,499,975 km (0.118 R)
• M18: 10,906,283 km (0.12 R)
• M19: 11,438,702 km (0.086 R)
• M20: 13,482,957 km (0.111 R)
• M21: 15,712,115 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.4

Radius: 9.7

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.21 AU - 3.59 AU

Year: 4113 Days

Day: 9.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,195,013 km

• M1: 120,725 km (0.072 R)
• M2: 427,252 km (0.091 R)
• M3: 977,921 km (0.083 R)
• M4: 1,306,438 km (0.036 R)
• M5: 1,782,758 km (0.101 R)
• M6: 2,238,583 km (0.055 R)
• M7: 2,737,641 km (0.116 R)
• M8: 3,347,552 km (0.092 R)
• M9: 4,089,707 km (0.085 R)
• M10: 4,666,855 km (0.09 R)
• M11: 5,141,080 km (0.042 R)
• M12: 6,821,513 km (0.074 R)
• M13: 7,433,369 km (0.078 R)
• M14: 10,459,434 km (0.077 R)
• M15: 11,944,642 km (0.057 R)
• M16: 12,548,120 km (0.119 R)
• M17: 13,074,555 km (0.066 R)
• M18: 13,866,376 km (0.105 R)
• M19: 14,481,074 km (0.108 R)
• M20: 15,220,985 km (0.112 R)
• M21: 17,239,359 km (0.105 R)
• M22: 18,557,167 km (0.029 R)
• M23: 22,490,993 km (0.112 R)
• M24: 22,912,709 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.3

Radius: 12.5

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.76 AU - 4 AU

Year: 5014 Days

Day: 14.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,195,013 km

• M1: 155,432 km (0.094 R)
• M2: 708,795 km (0.087 R)
• M3: 1,194,689 km (0.108 R)
• M4: 1,766,751 km (0.12 R)
• M5: 2,863,453 km (0.063 R)
• M6: 3,611,891 km (0.103 R)
• M7: 4,370,352 km (0.119 R)
• M8: 6,000,819 km (0.063 R)
• M9: 10,091,424 km (0.088 R)
• M10: 12,708,339 km (0.032 R)
• M11: 19,180,392 km (0.098 R)
• M12: 22,939,487 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.7

Radius: 12.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.74 AU - 5.42 AU

Year: 7511 Days

Day: 10 Hours

Environment

Temp: -211 °C

Axial Tilt: 143.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,195,013 km

• M1: 155,881 km (0.041 R)
• M2: 599,289 km (0.105 R)
• M3: 1,196,484 km (0.079 R)
• M4: 1,625,830 km (0.09 R)
• M5: 2,109,180 km (0.106 R)
• M6: 4,249,328 km (0.092 R)
• M7: 4,965,303 km (0.11 R)
• M8: 6,674,907 km (0.083 R)
• M9: 9,385,471 km (0.117 R)
• M10: 11,754,353 km (0.063 R)
• M11: 12,305,771 km (0.117 R)
• M12: 13,223,853 km (0.106 R)
• M13: 14,248,748 km (0.119 R)
• M14: 15,390,928 km (0.059 R)
• M15: 18,586,339 km (0.105 R)
• M16: 19,108,734 km (0.106 R)
• M17: 19,949,325 km (0.065 R)
• M18: 22,534,974 km (0.103 R)
• M19: 25,519,153 km (0.105 R)
• M20: 29,055,796 km (0.064 R)
• M21: 29,456,718 km (0.062 R)
• M22: 32,367,444 km (0.049 R)
• M23: 35,237,330 km (0.1 R)
• M24: 36,968,027 km (0.038 R)
• M25: 38,997,173 km (0.107 R)
• M26: 40,473,554 km (0.098 R)
• M27: 41,351,843 km (0.093 R)
• M28: 43,407,019 km (0.03 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 12,285 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit