🌌 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 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.54 AU - 0.76 AU

Year: 344 Days

Day: 12.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,911,464 km

• M1: 93,947 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196

Radius: 9.1

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.86 AU - 1.3 AU

Year: 736 Days

Day: 10.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,911,464 km

• M1: 113,246 km (0.068 R)
• M2: 684,709 km (0.095 R)
• M3: 993,031 km (0.108 R)
• M4: 1,711,699 km (0.034 R)
• M5: 2,034,082 km (0.083 R)
• M6: 2,762,624 km (0.059 R)
• M7: 3,570,452 km (0.076 R)
• M8: 3,970,926 km (0.11 R)
• M9: 4,997,616 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.6

Radius: 11

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.55 AU - 2.15 AU

Year: 1651 Days

Day: 10.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,911,464 km

• M1: 136,732 km (0.051 R)
• M2: 678,875 km (0.041 R)
• M3: 1,043,296 km (0.072 R)
• M4: 1,465,910 km (0.034 R)
• M5: 1,849,628 km (0.081 R)
• M6: 2,220,780 km (0.091 R)
• M7: 2,838,769 km (0.064 R)
• M8: 3,277,241 km (0.068 R)
• M9: 3,793,652 km (0.106 R)
• M10: 4,660,273 km (0.086 R)
• M11: 5,314,913 km (0.082 R)
• M12: 6,328,738 km (0.058 R)
• M13: 6,857,267 km (0.058 R)
• M14: 7,651,632 km (0.084 R)
• M15: 10,017,223 km (0.106 R)
• M16: 10,470,654 km (0.083 R)
• M17: 11,108,091 km (0.09 R)
• M18: 11,985,781 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.6

Radius: 8.8

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.78 AU - 4.96 AU

Year: 7050 Days

Day: 13.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,911,464 km

• M1: 109,506 km (0.114 R)
• M2: 526,435 km (0.107 R)
• M3: 1,151,754 km (0.087 R)
• M4: 1,713,644 km (0.049 R)
• M5: 2,780,276 km (0.111 R)
• M6: 3,121,210 km (0.113 R)
• M7: 3,627,000 km (0.066 R)
• M8: 3,936,518 km (0.117 R)
• M9: 4,420,767 km (0.115 R)
• M10: 4,915,636 km (0.053 R)
• M11: 5,236,075 km (0.07 R)
• M12: 6,694,505 km (0.078 R)
• M13: 7,125,496 km (0.027 R)
• M14: 8,993,824 km (0.109 R)
• M15: 10,297,569 km (0.117 R)
• M16: 12,943,657 km (0.076 R)
• M17: 15,823,116 km (0.042 R)
• M18: 16,783,535 km (0.065 R)
• M19: 17,918,534 km (0.116 R)
• M20: 21,168,847 km (0.113 R)
• M21: 23,460,088 km (0.081 R)
• M22: 26,528,041 km (0.04 R)
• M23: 28,622,411 km (0.106 R)
• M24: 29,661,967 km (0.101 R)
• M25: 30,142,774 km (0.104 R)
• M26: 35,240,471 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.8

Radius: 8.3

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.99 AU - 6.23 AU

Year: 7578 Days

Day: 13.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,911,464 km

• M1: 110,254 km (0.083 R)
• M2: 372,947 km (0.1 R)
• M3: 735,274 km (0.066 R)
• M4: 1,095,206 km (0.115 R)
• M5: 1,410,409 km (0.056 R)
• M6: 1,960,779 km (0.088 R)
• M7: 2,647,134 km (0.057 R)
• M8: 3,056,284 km (0.081 R)
• M9: 4,677,477 km (0.086 R)
• M10: 5,129,861 km (0.106 R)
• M11: 5,704,616 km (0.088 R)
• M12: 7,535,993 km (0.101 R)
• M13: 9,728,499 km (0.055 R)
• M14: 10,513,439 km (0.083 R)
• M15: 11,490,463 km (0.05 R)
• M16: 13,455,132 km (0.09 R)
• M17: 14,664,780 km (0.112 R)
• M18: 15,572,091 km (0.114 R)
• M19: 16,904,559 km (0.099 R)
• M20: 18,311,527 km (0.053 R)
• M21: 19,506,216 km (0.103 R)
• M22: 22,284,847 km (0.071 R)
• M23: 23,727,569 km (0.116 R)
• M24: 26,268,788 km (0.082 R)
• M25: 30,703,317 km (0.077 R)
• M26: 34,130,156 km (0.094 R)
• M27: 36,043,812 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.5

Radius: 7.5

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 7.44 AU - 8.54 AU

Year: 14816 Days

Day: 22.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,911,464 km

• M1: 93,349 km (0.09 R)
• M2: 490,681 km (0.081 R)
• M3: 834,158 km (0.079 R)
• M4: 1,333,964 km (0.118 R)
• M5: 1,592,021 km (0.062 R)
• M6: 5,451,496 km (0.105 R)
• M7: 6,119,151 km (0.093 R)
• M8: 6,455,747 km (0.07 R)
• M9: 7,202,838 km (0.117 R)
• M10: 8,206,191 km (0.071 R)
• M11: 9,790,283 km (0.056 R)
• M12: 10,439,538 km (0.114 R)
• M13: 13,835,559 km (0.111 R)
• M14: 18,523,208 km (0.111 R)
• M15: 21,221,655 km (0.049 R)
• M16: 24,338,227 km (0.026 R)
• M17: 25,013,213 km (0.115 R)
• M18: 27,746,964 km (0.077 R)
• M19: 28,390,833 km (0.107 R)
• M20: 30,285,191 km (0.117 R)
• M21: 31,660,295 km (0.041 R)
• M22: 32,363,255 km (0.114 R)
• M23: 33,696,172 km (0.052 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 19,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit