🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.9

Radius: 10.9

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.81 AU - 1.27 AU

Year: 685 Days

Day: 11.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,687,808 km

• M1: 135,536 km (0.108 R)
• M2: 479,162 km (0.114 R)
• M3: 848,818 km (0.027 R)
• M4: 1,193,043 km (0.091 R)
• M5: 1,549,236 km (0.043 R)
• M6: 2,124,589 km (0.11 R)
• M7: 2,473,750 km (0.071 R)
• M8: 3,088,747 km (0.101 R)
• M9: 3,732,766 km (0.086 R)
• M10: 4,154,632 km (0.096 R)
• M11: 4,511,872 km (0.118 R)
• M12: 5,112,358 km (0.113 R)
• M13: 5,671,554 km (0.104 R)
• M14: 6,392,018 km (0.112 R)
• M15: 6,806,105 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.7

Radius: 11.6

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.04 AU - 1.2 AU

Year: 765 Days

Day: 14.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,687,808 km

• M1: 144,212 km (0.07 R)
• M2: 686,654 km (0.095 R)
• M3: 1,049,429 km (0.051 R)
• M4: 1,671,457 km (0.106 R)
• M5: 2,402,392 km (0.072 R)
• M6: 2,922,544 km (0.099 R)
• M7: 4,620,480 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.6

Radius: 11.4

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.32 AU - 1.68 AU

Year: 1186 Days

Day: 14.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,687,808 km

• M1: 141,819 km (0.026 R)
• M2: 596,297 km (0.098 R)
• M3: 1,097,151 km (0.083 R)
• M4: 1,558,361 km (0.038 R)
• M5: 1,993,242 km (0.104 R)
• M6: 3,355,630 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100

Radius: 14.8

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.67 AU - 2.53 AU

Year: 1965 Days

Day: 7.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,687,808 km

• M1: 184,155 km (0.102 R)
• M2: 649,255 km (0.084 R)
• M3: 1,214,884 km (0.07 R)
• M4: 1,779,018 km (0.103 R)
• M5: 2,280,919 km (0.063 R)
• M6: 3,391,085 km (0.059 R)
• M7: 4,039,143 km (0.089 R)
• M8: 5,078,100 km (0.031 R)
• M9: 5,548,435 km (0.034 R)
• M10: 6,598,762 km (0.117 R)
• M11: 8,160,414 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.1

Radius: 10.5

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.12 AU - 2.58 AU

Year: 2326 Days

Day: 5.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,687,808 km

• M1: 131,048 km (0.093 R)
• M2: 472,879 km (0.038 R)
• M3: 883,226 km (0.034 R)
• M4: 1,223,411 km (0.068 R)
• M5: 1,653,356 km (0.06 R)
• M6: 1,990,998 km (0.086 R)
• M7: 2,564,706 km (0.108 R)
• M8: 3,463,939 km (0.113 R)
• M9: 4,024,482 km (0.09 R)
• M10: 4,561,089 km (0.117 R)
• M11: 5,055,361 km (0.096 R)
• M12: 7,030,502 km (0.062 R)
• M13: 8,206,042 km (0.1 R)
• M14: 9,338,049 km (0.026 R)
• M15: 9,818,856 km (0.069 R)
• M16: 12,029,614 km (0.094 R)
• M17: 12,682,159 km (0.112 R)
• M18: 13,748,942 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.8

Radius: 7.5

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.85 AU - 6.85 AU

Year: 10332 Days

Day: 20.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,687,808 km

• M1: 93,349 km (0.04 R)
• M2: 490,980 km (0.11 R)
• M3: 728,542 km (0.084 R)
• M4: 1,025,942 km (0.095 R)
• M5: 1,467,106 km (0.12 R)
• M6: 2,160,792 km (0.078 R)
• M7: 2,806,755 km (0.045 R)
• M8: 3,995,161 km (0.03 R)
• M9: 4,420,467 km (0.091 R)
• M10: 5,456,134 km (0.04 R)
• M11: 6,116,159 km (0.03 R)
• M12: 6,394,711 km (0.101 R)
• M13: 6,828,245 km (0.114 R)
• M14: 7,554,692 km (0.114 R)
• M15: 7,916,420 km (0.059 R)
• M16: 8,674,283 km (0.085 R)
• M17: 9,525,794 km (0.117 R)
• M18: 11,604,157 km (0.083 R)
• M19: 12,414,529 km (0.043 R)
• M20: 14,027,194 km (0.109 R)
• M21: 14,821,409 km (0.105 R)
• M22: 15,197,947 km (0.037 R)
• M23: 18,516,177 km (0.082 R)
• M24: 19,847,449 km (0.088 R)
• M25: 20,536,496 km (0.108 R)
• M26: 25,633,296 km (0.073 R)
• M27: 36,047,253 km (0.097 R)
• M28: 36,842,964 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.9

Radius: 6.5

Gravity: 22.34 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 8.39 AU - 8.73 AU

Year: 16171 Days

Day: 23.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,687,808 km

• M1: 83,027 km (0.095 R)
• M2: 704,008 km (0.1 R)
• M3: 1,241,513 km (0.069 R)
• M4: 1,816,118 km (0.103 R)
• M5: 3,068,851 km (0.108 R)
• M6: 4,468,638 km (0.086 R)
• M7: 4,743,599 km (0.107 R)
• M8: 5,795,571 km (0.039 R)
• M9: 8,454,972 km (0.03 R)
• M10: 8,876,240 km (0.076 R)
• M11: 10,107,131 km (0.1 R)
• M12: 13,603,234 km (0.1 R)
• M13: 15,387,487 km (0.1 R)
• M14: 16,255,305 km (0.099 R)
• M15: 18,347,880 km (0.074 R)
• M16: 25,474,722 km (0.091 R)
• M17: 29,825,776 km (0.109 R)
• M18: 33,201,901 km (0.096 R)
• M19: 36,271,649 km (0.057 R)
• M20: 38,946,310 km (0.083 R)
• M21: 48,250,848 km (0.109 R)
• M22: 56,867,387 km (0.11 R)
• M23: 64,618,651 km (0.102 R)
• M24: 65,430,518 km (0.067 R)
• M25: 72,171,099 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.8

Radius: 3.3

Gravity: 19.45 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.51 AU - 10.69 AU

Year: 20725 Days

Day: 19.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,687,808 km

• M1: 41,588 km (0.109 R)
• M2: 374,443 km (0.114 R)
• M3: 2,278,974 km (0.036 R)
• M4: 6,741,030 km (0.104 R)
• M5: 8,012,761 km (0.081 R)
• M6: 10,963,878 km (0.107 R)
• M7: 15,804,417 km (0.067 R)
• M8: 17,791,076 km (0.034 R)
• M9: 20,353,688 km (0.099 R)
• M10: 28,541,030 km (0.06 R)
• M11: 40,504,072 km (0.036 R)
• M12: 46,328,965 km (0.06 R)
• M13: 47,204,262 km (0.108 R)
• M14: 47,645,875 km (0.098 R)
• M15: 50,048,267 km (0.069 R)
• M16: 52,530,096 km (0.029 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 15,486 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit