🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.51 AU - 0.61 AU

Year: 275 Days

Day: 43.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,659,981 km

• M1: 173,234 km (0.081 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.49 AU - 0.73 AU

Year: 313 Days

Day: 33.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 22.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157

Radius: 13.4

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.66 AU - 0.78 AU

Year: 401 Days

Day: 5.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,659,981 km

• M1: 166,652 km (0.084 R)
• M2: 623,674 km (0.086 R)
• M3: 1,381,686 km (0.113 R)
• M4: 2,022,114 km (0.105 R)
• M5: 2,471,058 km (0.097 R)
• M6: 3,140,658 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.2

Radius: 13.4

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.42 AU - 5.78 AU

Year: 7556 Days

Day: 13.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,659,981 km

• M1: 166,652 km (0.05 R)
• M2: 794,963 km (0.101 R)
• M3: 1,215,034 km (0.092 R)
• M4: 1,754,633 km (0.079 R)
• M5: 2,394,763 km (0.106 R)
• M6: 2,844,454 km (0.073 R)
• M7: 3,596,931 km (0.085 R)
• M8: 8,802,638 km (0.042 R)
• M9: 9,353,008 km (0.047 R)
• M10: 9,848,477 km (0.113 R)
• M11: 11,185,283 km (0.091 R)
• M12: 12,008,071 km (0.11 R)
• M13: 12,548,419 km (0.042 R)
• M14: 13,677,584 km (0.057 R)
• M15: 15,976,005 km (0.053 R)
• M16: 17,019,899 km (0.103 R)
• M17: 20,615,933 km (0.096 R)
• M18: 22,119,691 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.5

Radius: 4.1

Gravity: 52.86 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.02 AU - 7.58 AU

Year: 11632 Days

Day: 19.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,659,981 km

• M1: 51,013 km (0.112 R)
• M2: 266,135 km (0.076 R)
• M3: 441,015 km (0.116 R)
• M4: 772,374 km (0.092 R)
• M5: 1,089,970 km (0.115 R)
• M6: 1,579,754 km (0.088 R)
• M7: 1,722,470 km (0.114 R)
• M8: 2,791,347 km (0.086 R)
• M9: 3,347,552 km (0.044 R)
• M10: 4,209,834 km (0.075 R)
• M11: 4,548,523 km (0.117 R)
• M12: 9,096,897 km (0.063 R)
• M13: 9,248,888 km (0.064 R)
• M14: 11,735,205 km (0.093 R)
• M15: 12,404,506 km (0.095 R)
• M16: 14,982,526 km (0.11 R)
• M17: 15,265,565 km (0.077 R)
• M18: 17,116,091 km (0.101 R)
• M19: 18,945,972 km (0.105 R)
• M20: 19,276,882 km (0.045 R)
• M21: 22,156,342 km (0.063 R)
• M22: 25,210,084 km (0.106 R)
• M23: 32,019,180 km (0.109 R)
• M24: 34,781,804 km (0.109 R)
• M25: 36,284,365 km (0.081 R)
• M26: 37,051,653 km (0.103 R)
• M27: 39,017,069 km (0.089 R)
• M28: 40,913,073 km (0.112 R)
• M29: 42,586,475 km (0.071 R)
• M30: 43,727,009 km (0.094 R)
• M31: 52,774,389 km (0.114 R)
• M32: 53,924,048 km (0.071 R)
• M33: 54,421,761 km (0.106 R)

Asteroid Belt

Center: 7.45 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551

Radius: 5.8

Gravity: 16.38 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.8 AU - 9.38 AU

Year: 15095 Days

Day: 17.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,659,981 km

• M1: 72,405 km (0.075 R)
• M2: 354,996 km (0.094 R)
• M3: 547,827 km (0.082 R)
• M4: 775,665 km (0.103 R)
• M5: 1,501,065 km (0.086 R)
• M6: 1,938,489 km (0.08 R)
• M7: 2,805,558 km (0.046 R)
• M8: 3,765,827 km (0.053 R)
• M9: 5,131,207 km (0.061 R)
• M10: 6,193,801 km (0.096 R)
• M11: 6,430,764 km (0.083 R)
• M12: 7,221,239 km (0.073 R)
• M13: 7,752,760 km (0.111 R)
• M14: 11,801,477 km (0.082 R)
• M15: 12,351,249 km (0.057 R)
• M16: 12,727,039 km (0.104 R)
• M17: 16,310,805 km (0.107 R)
• M18: 16,915,929 km (0.097 R)
• M19: 19,235,145 km (0.109 R)
• M20: 21,848,919 km (0.109 R)
• M21: 23,430,467 km (0.075 R)
• M22: 24,006,419 km (0.094 R)
• M23: 25,588,267 km (0.097 R)
• M24: 26,404,772 km (0.116 R)
• M25: 27,028,446 km (0.113 R)
• M26: 27,661,843 km (0.11 R)
• M27: 33,693,180 km (0.068 R)
• M28: 39,187,013 km (0.06 R)
• M29: 41,653,882 km (0.103 R)
• M30: 42,356,992 km (0.08 R)
• M31: 43,931,808 km (0.114 R)
• M32: 44,222,178 km (0.088 R)
• M33: 45,545,221 km (0.107 R)
• M34: 52,231,498 km (0.038 R)
• M35: 55,552,870 km (0.059 R)
• M36: 56,233,540 km (0.065 R)
• M37: 56,575,970 km (0.079 R)
• M38: 57,611,786 km (0.11 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 18,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit