🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.5 AU - 0.7 AU

Year: 168 Days

Day: 30.4 Hours

Environment

Temp: 142 °C

Axial Tilt: 6.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 94,169,194 km

• M1: 31,565 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.8 AU - 0.98 AU

Year: 304 Days

Day: 33.2 Hours

Environment

Temp: 154 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.41 AU - 1.71 AU

Year: 705 Days

Day: 38.5 Hours

Environment

Temp: -35 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.1

Radius: 14.1

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.84 AU - 6.36 AU

Year: 4165 Days

Day: 5.7 Hours

Environment

Temp: -133 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 94,169,194 km

• M1: 175,478 km (0.087 R)
• M2: 848,070 km (0.098 R)
• M3: 2,791,795 km (0.046 R)
• M4: 5,118,641 km (0.109 R)
• M5: 5,949,657 km (0.093 R)
• M6: 8,711,234 km (0.027 R)
• M7: 9,599,097 km (0.117 R)
• M8: 12,865,566 km (0.029 R)
• M9: 14,144,628 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.8

Radius: 10.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.16 AU - 11.62 AU

Year: 10406 Days

Day: 13.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 94,169,194 km

• M1: 134,339 km (0.103 R)
• M2: 575,353 km (0.112 R)
• M3: 999,613 km (0.117 R)
• M4: 2,505,615 km (0.073 R)
• M5: 4,350,007 km (0.104 R)
• M6: 5,578,804 km (0.096 R)
• M7: 7,431,873 km (0.043 R)
• M8: 11,015,490 km (0.089 R)
• M9: 13,993,235 km (0.093 R)
• M10: 17,188,047 km (0.11 R)
• M11: 19,104,994 km (0.106 R)
• M12: 20,396,622 km (0.114 R)
• M13: 21,419,124 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.1

Radius: 11.7

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 10.26 AU - 10.42 AU

Year: 12025 Days

Day: 14.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 94,169,194 km

• M1: 147,952 km (0.104 R)
• M2: 628,610 km (0.113 R)
• M3: 1,343,987 km (0.078 R)
• M4: 2,387,881 km (0.115 R)
• M5: 2,918,056 km (0.086 R)
• M6: 3,572,248 km (0.118 R)
• M7: 3,984,988 km (0.111 R)
• M8: 5,933,500 km (0.11 R)
• M9: 7,059,823 km (0.094 R)
• M10: 7,913,578 km (0.045 R)
• M11: 9,053,813 km (0.118 R)
• M12: 9,594,459 km (0.115 R)
• M13: 10,641,645 km (0.073 R)
• M14: 11,091,485 km (0.115 R)
• M15: 11,763,629 km (0.119 R)
• M16: 12,244,586 km (0.098 R)
• M17: 13,708,550 km (0.042 R)
• M18: 15,794,842 km (0.117 R)
• M19: 17,116,689 km (0.063 R)
• M20: 21,842,636 km (0.038 R)
• M21: 26,727,305 km (0.109 R)
• M22: 28,409,533 km (0.118 R)
• M23: 30,062,141 km (0.114 R)
• M24: 37,316,590 km (0.098 R)
• M25: 38,473,431 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 550.7

Radius: 7.1

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 15.09 AU - 23.55 AU

Year: 30711 Days

Day: 15.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 94,169,194 km

• M1: 88,263 km (0.044 R)
• M2: 387,159 km (0.077 R)
• M3: 693,685 km (0.079 R)
• M4: 1,103,733 km (0.086 R)
• M5: 1,340,696 km (0.116 R)
• M6: 3,142,303 km (0.074 R)
• M7: 3,438,657 km (0.099 R)
• M8: 3,786,023 km (0.093 R)
• M9: 4,053,205 km (0.1 R)
• M10: 4,441,262 km (0.114 R)
• M11: 6,384,538 km (0.054 R)
• M12: 9,126,816 km (0.101 R)
• M13: 10,492,944 km (0.1 R)
• M14: 13,240,608 km (0.057 R)
• M15: 14,494,986 km (0.071 R)
• M16: 18,827,042 km (0.112 R)
• M17: 20,716,164 km (0.084 R)
• M18: 22,947,117 km (0.07 R)
• M19: 26,044,690 km (0.072 R)
• M20: 28,894,230 km (0.089 R)
• M21: 29,280,492 km (0.105 R)
• M22: 31,807,948 km (0.101 R)
• M23: 32,358,019 km (0.101 R)
• M24: 34,477,372 km (0.101 R)
• M25: 35,644,535 km (0.119 R)
• M26: 36,237,990 km (0.117 R)
• M27: 42,207,992 km (0.063 R)
• M28: 42,539,202 km (0.089 R)
• M29: 45,598,628 km (0.086 R)
• M30: 48,257,730 km (0.118 R)
• M31: 49,349,645 km (0.05 R)
• M32: 54,272,312 km (0.055 R)
• M33: 59,929,057 km (0.096 R)
• M34: 65,743,926 km (0.031 R)
• M35: 66,412,479 km (0.097 R)
• M36: 67,762,899 km (0.057 R)
• M37: 87,020,034 km (0.074 R)

Kuiper Belt

Range: 30.3 - 49.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 16,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit