🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.54 AU - 0.56 AU

Year: 154 Days

Day: 23.5 Hours

Environment

Temp: 203 °C

Axial Tilt: 7.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.67 AU - 0.69 AU

Year: 212 Days

Day: 43.8 Hours

Environment

Temp: 120 °C

Axial Tilt: 24 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,791,282 km

• M1: 30,518 km (0.037 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.15 AU - 1.37 AU

Year: 536 Days

Day: 18.2 Hours

Environment

Temp: -34 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.15 AU - 1.49 AU

Year: 574 Days

Day: 44.8 Hours

Environment

Temp: -40 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.86 AU - 2.18 AU

Year: 1087 Days

Day: 30.5 Hours

Environment

Temp: -70 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.96 AU - 2.5 AU

Year: 1261 Days

Day: 35 Hours

Environment

Temp: -97 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,791,282 km

• M1: 720,314 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.2

Radius: 9.4

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.1 AU - 7.8 AU

Year: 6204 Days

Day: 10.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,791,282 km

• M1: 155,881 km (0.061 R)
• M2: 561,590 km (0.064 R)
• M3: 2,456,547 km (0.105 R)
• M4: 3,450,924 km (0.09 R)
• M5: 4,912,495 km (0.115 R)
• M6: 5,312,669 km (0.093 R)
• M7: 5,765,652 km (0.108 R)
• M8: 6,476,391 km (0.105 R)
• M9: 7,839,976 km (0.106 R)
• M10: 8,960,763 km (0.087 R)
• M11: 12,277,048 km (0.082 R)
• M12: 14,757,381 km (0.115 R)
• M13: 20,031,604 km (0.065 R)
• M14: 21,354,049 km (0.083 R)
• M15: 22,036,514 km (0.11 R)
• M16: 22,655,401 km (0.098 R)
• M17: 25,500,154 km (0.046 R)
• M18: 34,096,646 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.9

Radius: 10.4

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 9.03 AU - 11.27 AU

Year: 12248 Days

Day: 12.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,791,282 km

• M1: 129,402 km (0.061 R)
• M2: 517,459 km (0.041 R)
• M3: 1,058,555 km (0.041 R)
• M4: 1,387,520 km (0.069 R)
• M5: 1,855,163 km (0.05 R)
• M6: 2,529,550 km (0.034 R)
• M7: 2,992,406 km (0.074 R)
• M8: 3,511,212 km (0.115 R)
• M9: 5,173,244 km (0.115 R)
• M10: 5,524,350 km (0.114 R)
• M11: 6,950,766 km (0.065 R)
• M12: 7,674,520 km (0.103 R)
• M13: 9,486,450 km (0.06 R)
• M14: 10,104,289 km (0.06 R)
• M15: 10,748,607 km (0.116 R)
• M16: 11,273,845 km (0.111 R)
• M17: 13,658,435 km (0.069 R)
• M18: 15,928,284 km (0.052 R)
• M19: 17,837,452 km (0.081 R)
• M20: 18,304,047 km (0.12 R)
• M21: 20,833,448 km (0.115 R)
• M22: 21,877,043 km (0.069 R)
• M23: 24,556,640 km (0.115 R)
• M24: 26,574,865 km (0.113 R)
• M25: 29,342,276 km (0.11 R)
• M26: 30,938,784 km (0.106 R)
• M27: 32,592,439 km (0.032 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581

Radius: 7.6

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 13.55 AU - 17.45 AU

Year: 23112 Days

Day: 15.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,791,282 km

• M1: 97,089 km (0.085 R)
• M2: 456,872 km (0.094 R)
• M3: 767,138 km (0.09 R)
• M4: 2,212,104 km (0.062 R)
• M5: 2,915,662 km (0.11 R)
• M6: 4,205,645 km (0.112 R)
• M7: 5,675,294 km (0.103 R)
• M8: 7,458,950 km (0.118 R)
• M9: 9,703,067 km (0.097 R)
• M10: 10,541,564 km (0.072 R)
• M11: 12,638,477 km (0.066 R)
• M12: 14,156,596 km (0.072 R)
• M13: 14,535,228 km (0.118 R)
• M14: 16,447,837 km (0.092 R)
• M15: 22,561,154 km (0.056 R)
• M16: 23,602,654 km (0.053 R)
• M17: 28,568,705 km (0.085 R)
• M18: 30,912,904 km (0.076 R)
• M19: 32,851,992 km (0.117 R)
• M20: 33,649,797 km (0.081 R)
• M21: 38,416,733 km (0.067 R)
• M22: 43,774,581 km (0.1 R)
• M23: 52,082,199 km (0.111 R)
• M24: 56,131,515 km (0.116 R)
• M25: 57,271,151 km (0.082 R)
• M26: 58,039,486 km (0.061 R)
• M27: 63,611,408 km (0.098 R)
• M28: 76,962,869 km (0.085 R)
• M29: 78,841,369 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 762.5

Radius: 4.3

Gravity: 41.24 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 12.32 AU - 19.02 AU

Year: 23494 Days

Day: 20.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,791,282 km

• M1: 53,406 km (0.032 R)
• M2: 194,028 km (0.097 R)
• M3: 392,994 km (0.115 R)
• M4: 645,814 km (0.09 R)
• M5: 937,679 km (0.082 R)
• M6: 1,312,422 km (0.049 R)
• M7: 1,595,611 km (0.074 R)
• M8: 2,237,835 km (0.104 R)
• M9: 2,667,330 km (0.098 R)
• M10: 3,065,410 km (0.113 R)
• M11: 3,783,031 km (0.059 R)
• M12: 4,829,917 km (0.104 R)
• M13: 5,419,781 km (0.06 R)
• M14: 5,584,937 km (0.108 R)
• M15: 7,578,479 km (0.079 R)
• M16: 8,649,300 km (0.113 R)
• M17: 9,575,760 km (0.099 R)
• M18: 10,001,216 km (0.066 R)
• M19: 10,694,901 km (0.103 R)
• M20: 11,285,963 km (0.103 R)
• M21: 14,100,497 km (0.095 R)
• M22: 14,650,867 km (0.089 R)
• M23: 18,072,919 km (0.06 R)
• M24: 18,628,376 km (0.1 R)
• M25: 19,099,759 km (0.051 R)
• M26: 26,323,840 km (0.095 R)
• M27: 27,157,100 km (0.12 R)
• M28: 27,641,049 km (0.067 R)
• M29: 31,855,520 km (0.034 R)
• M30: 32,938,010 km (0.114 R)
• M31: 44,806,956 km (0.071 R)
• M32: 45,822,725 km (0.044 R)
• M33: 47,549,683 km (0.04 R)
• M34: 58,831,008 km (0.065 R)
• M35: 72,231,537 km (0.092 R)
• M36: 75,277,649 km (0.046 R)
• M37: 75,992,577 km (0.027 R)
• M38: 78,652,576 km (0.094 R)
• M39: 80,377,290 km (0.116 R)
• M40: 83,392,286 km (0.073 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: 426 - 11,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit