🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.95 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.77 AU - 2.01 AU

Year: 794 Days

Day: 44.9 Hours

Environment

Temp: 30 °C

Axial Tilt: 43.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.28 AU - 2.54 AU

Year: 1143 Days

Day: 44.2 Hours

Environment

Temp: -3 °C

Axial Tilt: 105.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.63 AU - 3.27 AU

Year: 1548 Days

Day: 22.4 Hours

Environment

Temp: -41 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,779,088 km

• M1: 75,098 km (0.06 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.51 AU - 4.69 AU

Year: 3013 Days

Day: 19.1 Hours

Environment

Temp: -80 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,779,088 km

• M1: 61,036 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.6

Radius: 9.4

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 9.05 AU - 9.41 AU

Year: 8565 Days

Day: 10.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,779,088 km

• M1: 117,434 km (0.11 R)
• M2: 415,583 km (0.106 R)
• M3: 1,056,161 km (0.091 R)
• M4: 1,483,412 km (0.076 R)
• M5: 1,787,395 km (0.038 R)
• M6: 2,149,721 km (0.051 R)
• M7: 3,085,755 km (0.101 R)
• M8: 3,727,829 km (0.085 R)
• M9: 4,043,331 km (0.08 R)
• M10: 4,700,963 km (0.079 R)
• M11: 7,554,244 km (0.107 R)
• M12: 8,930,245 km (0.051 R)
• M13: 9,233,181 km (0.097 R)
• M14: 9,542,998 km (0.114 R)
• M15: 10,999,183 km (0.105 R)
• M16: 12,330,305 km (0.116 R)
• M17: 13,425,063 km (0.114 R)
• M18: 13,765,697 km (0.091 R)
• M19: 14,464,618 km (0.095 R)
• M20: 15,494,749 km (0.108 R)
• M21: 26,797,167 km (0.093 R)
• M22: 27,428,770 km (0.091 R)
• M23: 28,348,348 km (0.103 R)
• M24: 30,736,827 km (0.032 R)
• M25: 32,435,810 km (0.083 R)
• M26: 32,741,888 km (0.096 R)
• M27: 33,256,504 km (0.066 R)
• M28: 35,368,976 km (0.084 R)
• M29: 35,801,912 km (0.112 R)
• M30: 36,678,556 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249

Radius: 9.2

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 9.68 AU - 12.3 AU

Year: 11128 Days

Day: 8 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,779,088 km

• M1: 129,253 km (0.086 R)
• M2: 1,237,324 km (0.105 R)
• M3: 3,108,045 km (0.082 R)
• M4: 4,292,262 km (0.078 R)
• M5: 5,145,718 km (0.048 R)
• M6: 5,535,570 km (0.068 R)
• M7: 6,140,993 km (0.082 R)
• M8: 8,264,235 km (0.09 R)
• M9: 9,055,010 km (0.105 R)
• M10: 11,327,102 km (0.094 R)
• M11: 13,056,005 km (0.079 R)
• M12: 14,536,874 km (0.087 R)
• M13: 18,793,980 km (0.12 R)
• M14: 21,053,656 km (0.109 R)
• M15: 21,357,938 km (0.089 R)
• M16: 28,168,082 km (0.114 R)
• M17: 31,512,193 km (0.113 R)
• M18: 33,330,854 km (0.112 R)
• M19: 35,863,247 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 15.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.9

Radius: 13.4

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 14.6 AU - 16.64 AU

Year: 18856 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 81,779,088 km

• M1: 166,652 km (0.102 R)
• M2: 941,120 km (0.066 R)
• M3: 1,425,219 km (0.087 R)
• M4: 2,316,523 km (0.055 R)
• M5: 2,924,339 km (0.09 R)
• M6: 3,580,625 km (0.064 R)
• M7: 4,143,562 km (0.091 R)
• M8: 8,909,152 km (0.11 R)
• M9: 9,446,507 km (0.109 R)
• M10: 10,177,293 km (0.111 R)
• M11: 10,945,478 km (0.071 R)
• M12: 11,374,973 km (0.11 R)
• M13: 13,553,717 km (0.115 R)
• M14: 15,456,452 km (0.082 R)
• M15: 16,233,763 km (0.055 R)
• M16: 17,448,348 km (0.039 R)
• M17: 17,866,474 km (0.098 R)
• M18: 18,291,332 km (0.074 R)
• M19: 20,609,949 km (0.046 R)
• M20: 21,456,523 km (0.042 R)
• M21: 23,319,615 km (0.057 R)
• M22: 24,654,926 km (0.071 R)
• M23: 26,040,801 km (0.114 R)
• M24: 30,269,035 km (0.071 R)
• M25: 32,231,609 km (0.077 R)
• M26: 37,230,721 km (0.068 R)
• M27: 39,914,208 km (0.103 R)
• M28: 50,068,612 km (0.087 R)
• M29: 57,841,718 km (0.069 R)
• M30: 67,198,765 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.9

Radius: 6.5

Gravity: 17.54 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 14 AU - 20.02 AU

Year: 21428 Days

Day: 24.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,779,088 km

• M1: 98,435 km (0.092 R)
• M2: 454,478 km (0.052 R)
• M3: 677,379 km (0.098 R)
• M4: 950,694 km (0.109 R)
• M5: 2,353,474 km (0.107 R)
• M6: 2,586,098 km (0.119 R)
• M7: 3,892,537 km (0.057 R)
• M8: 4,458,465 km (0.107 R)
• M9: 5,154,245 km (0.085 R)
• M10: 6,177,046 km (0.098 R)
• M11: 6,441,385 km (0.073 R)
• M12: 6,713,354 km (0.091 R)
• M13: 7,575,337 km (0.105 R)
• M14: 7,981,196 km (0.062 R)
• M15: 8,671,740 km (0.043 R)
• M16: 9,172,593 km (0.038 R)
• M17: 11,568,254 km (0.051 R)
• M18: 13,305,983 km (0.081 R)
• M19: 14,047,539 km (0.113 R)
• M20: 15,612,483 km (0.08 R)
• M21: 15,856,776 km (0.083 R)
• M22: 16,269,816 km (0.091 R)
• M23: 19,835,780 km (0.028 R)
• M24: 20,900,767 km (0.064 R)
• M25: 21,497,513 km (0.088 R)
• M26: 26,802,852 km (0.103 R)
• M27: 28,952,424 km (0.097 R)
• M28: 31,085,540 km (0.081 R)
• M29: 39,000,165 km (0.118 R)
• M30: 39,752,493 km (0.102 R)
• M31: 52,957,197 km (0.078 R)
• M32: 53,694,117 km (0.085 R)
• M33: 57,288,205 km (0.112 R)
• M34: 58,259,993 km (0.045 R)
• M35: 64,531,734 km (0.081 R)
• M36: 73,497,583 km (0.055 R)
• M37: 74,184,387 km (0.077 R)
• M38: 81,779,022 km (0.04 R)

Kuiper Belt

Range: 35.9 - 56.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 17,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit