🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.53 AU - 0.77 AU

Year: 195 Days

Day: 16.9 Hours

Environment

Temp: 124 °C

Axial Tilt: 13.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.81 AU - 0.81 AU

Year: 272 Days

Day: 47.7 Hours

Environment

Temp: 105 °C

Axial Tilt: 31.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.92 AU - 2.04 AU

Year: 1039 Days

Day: 46.9 Hours

Environment

Temp: -62 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.43 AU - 3.49 AU

Year: 1898 Days

Day: 15.2 Hours

Environment

Temp: -110 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.73 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.5

Radius: 8.9

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.19 AU - 4.81 AU

Year: 3559 Days

Day: 12.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,880,067 km

• M1: 110,702 km (0.059 R)
• M2: 396,434 km (0.113 R)
• M3: 997,818 km (0.112 R)
• M4: 1,454,091 km (0.072 R)
• M5: 1,731,745 km (0.076 R)
• M6: 2,180,987 km (0.118 R)
• M7: 2,501,875 km (0.038 R)
• M8: 2,787,906 km (0.119 R)
• M9: 4,335,945 km (0.094 R)
• M10: 5,449,850 km (0.085 R)
• M11: 6,073,674 km (0.075 R)
• M12: 6,417,749 km (0.103 R)
• M13: 6,896,462 km (0.093 R)
• M14: 7,431,125 km (0.091 R)
• M15: 8,371,796 km (0.04 R)
• M16: 10,285,751 km (0.051 R)
• M17: 10,733,946 km (0.116 R)
• M18: 12,658,523 km (0.116 R)
• M19: 13,508,389 km (0.091 R)
• M20: 15,585,705 km (0.035 R)
• M21: 16,177,364 km (0.103 R)
• M22: 16,506,330 km (0.097 R)
• M23: 17,520,304 km (0.058 R)
• M24: 17,925,565 km (0.074 R)
• M25: 19,057,273 km (0.044 R)
• M26: 21,396,834 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.9

Radius: 9.4

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.25 AU - 5.29 AU

Year: 4510 Days

Day: 6.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,880,067 km

• M1: 121,025 km (0.107 R)
• M2: 462,706 km (0.109 R)
• M3: 846,425 km (0.072 R)
• M4: 1,289,234 km (0.066 R)
• M5: 2,281,966 km (0.076 R)
• M6: 2,883,499 km (0.067 R)
• M7: 3,232,212 km (0.055 R)
• M8: 3,696,713 km (0.077 R)
• M9: 4,085,667 km (0.093 R)
• M10: 4,838,893 km (0.059 R)
• M11: 5,220,816 km (0.052 R)
• M12: 5,861,843 km (0.081 R)
• M13: 6,232,995 km (0.078 R)
• M14: 7,091,388 km (0.118 R)
• M15: 7,657,616 km (0.12 R)
• M16: 9,164,216 km (0.106 R)
• M17: 9,538,211 km (0.077 R)
• M18: 9,879,294 km (0.083 R)
• M19: 11,184,236 km (0.109 R)
• M20: 13,806,387 km (0.118 R)
• M21: 16,143,555 km (0.109 R)
• M22: 17,564,136 km (0.04 R)
• M23: 20,440,604 km (0.11 R)
• M24: 27,278,424 km (0.116 R)
• M25: 29,288,570 km (0.096 R)
• M26: 30,743,858 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.5

Radius: 6.1

Gravity: 12.94 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 9.27 AU - 15.07 AU

Year: 15827 Days

Day: 16.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,880,067 km

• M1: 76,744 km (0.096 R)
• M2: 267,032 km (0.074 R)
• M3: 642,373 km (0.085 R)
• M4: 895,044 km (0.031 R)
• M5: 1,781,262 km (0.088 R)
• M6: 3,692,674 km (0.113 R)
• M7: 4,481,952 km (0.049 R)
• M8: 5,033,520 km (0.051 R)
• M9: 6,270,844 km (0.101 R)
• M10: 7,214,956 km (0.111 R)
• M11: 14,806,748 km (0.109 R)
• M12: 15,016,784 km (0.109 R)
• M13: 21,116,338 km (0.092 R)
• M14: 24,461,945 km (0.1 R)
• M15: 30,229,990 km (0.086 R)
• M16: 31,947,224 km (0.085 R)
• M17: 32,533,797 km (0.116 R)
• M18: 33,487,184 km (0.101 R)
• M19: 34,336,601 km (0.116 R)
• M20: 35,449,759 km (0.119 R)
• M21: 40,688,826 km (0.101 R)
• M22: 46,421,266 km (0.029 R)
• M23: 52,669,222 km (0.072 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 19,199 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit