🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.56 AU - 0.58 AU

Year: 160 Days

Day: 33.8 Hours

Environment

Temp: 184 °C

Axial Tilt: 36.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,116,722 km

• M1: 95,144 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.6 AU - 0.82 AU

Year: 222 Days

Day: 39 Hours

Environment

Temp: 193 °C

Axial Tilt: 24.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,116,722 km

• M1: 420,520 km (0.093 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.36 AU - 1.78 AU

Year: 730 Days

Day: 24.7 Hours

Environment

Temp: -40 °C

Axial Tilt: 79.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 78,116,722 km

• M1: 209,886 km (0.097 R)
• M2: 477,516 km (0.097 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.53 AU - 1.65 AU

Year: 744 Days

Day: 30.7 Hours

Environment

Temp: -49 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.13 AU - 2.89 AU

Year: 1475 Days

Day: 14.6 Hours

Environment

Temp: -92 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 8.7

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 4.49 AU - 6.13 AU

Year: 4538 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,116,722 km

• M1: 109,356 km (0.091 R)
• M2: 1,022,053 km (0.067 R)
• M3: 1,510,340 km (0.083 R)
• M4: 2,970,565 km (0.098 R)
• M5: 3,884,608 km (0.048 R)
• M6: 5,671,704 km (0.029 R)
• M7: 8,827,172 km (0.095 R)
• M8: 10,283,956 km (0.096 R)
• M9: 10,609,930 km (0.068 R)
• M10: 11,717,552 km (0.08 R)
• M11: 14,110,969 km (0.11 R)
• M12: 15,822,817 km (0.116 R)
• M13: 20,347,106 km (0.095 R)
• M14: 22,457,483 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.4

Radius: 4.1

Gravity: 47.44 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 12.48 AU - 12.5 AU

Year: 16370 Days

Day: 17.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 78,116,722 km

• M1: 51,013 km (0.109 R)
• M2: 234,869 km (0.098 R)
• M3: 508,633 km (0.094 R)
• M4: 1,006,494 km (0.072 R)
• M5: 1,722,769 km (0.117 R)
• M6: 2,017,178 km (0.073 R)
• M7: 2,777,584 km (0.113 R)
• M8: 3,262,131 km (0.102 R)
• M9: 6,012,638 km (0.047 R)
• M10: 6,471,005 km (0.073 R)
• M11: 8,799,197 km (0.086 R)
• M12: 9,389,361 km (0.053 R)
• M13: 9,891,561 km (0.116 R)
• M14: 11,886,448 km (0.12 R)
• M15: 12,145,103 km (0.112 R)
• M16: 13,706,157 km (0.099 R)
• M17: 14,206,562 km (0.079 R)
• M18: 15,703,288 km (0.096 R)
• M19: 16,489,724 km (0.091 R)
• M20: 16,892,592 km (0.116 R)
• M21: 17,970,743 km (0.065 R)
• M22: 19,627,839 km (0.085 R)
• M23: 26,391,458 km (0.05 R)
• M24: 29,931,991 km (0.112 R)
• M25: 31,629,927 km (0.077 R)
• M26: 38,076,996 km (0.07 R)
• M27: 42,277,106 km (0.111 R)
• M28: 44,101,751 km (0.093 R)
• M29: 45,661,908 km (0.104 R)
• M30: 51,582,692 km (0.049 R)
• M31: 52,098,057 km (0.097 R)
• M32: 53,664,496 km (0.105 R)
• M33: 54,370,748 km (0.048 R)
• M34: 55,982,366 km (0.097 R)
• M35: 57,810,003 km (0.104 R)
• M36: 63,531,074 km (0.105 R)
• M37: 68,370,715 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 831.1

Radius: 6

Gravity: 23.09 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 12.48 AU - 15 AU

Year: 18888 Days

Day: 21.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,116,722 km

• M1: 74,649 km (0.102 R)
• M2: 963,560 km (0.058 R)
• M3: 1,294,022 km (0.108 R)
• M4: 2,078,214 km (0.098 R)
• M5: 3,807,565 km (0.058 R)
• M6: 10,610,678 km (0.059 R)
• M7: 12,638,627 km (0.064 R)
• M8: 18,945,523 km (0.111 R)
• M9: 19,496,043 km (0.088 R)
• M10: 27,420,841 km (0.094 R)
• M11: 29,569,366 km (0.077 R)
• M12: 34,333,160 km (0.075 R)
• M13: 48,171,562 km (0.115 R)
• M14: 49,713,766 km (0.065 R)
• M15: 51,642,980 km (0.057 R)
• M16: 52,536,229 km (0.116 R)
• M17: 55,836,956 km (0.101 R)
• M18: 57,347,446 km (0.109 R)
• M19: 68,261,808 km (0.112 R)
• M20: 68,905,677 km (0.1 R)
• M21: 75,798,848 km (0.077 R)
• M22: 77,416,449 km (0.104 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: 411 - 17,093 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit