🌌 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: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.45 AU - 0.67 AU

Year: 271 Days

Day: 46.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.4

Radius: 12.2

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.64 AU - 0.88 AU

Year: 428 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,667,666 km

• M1: 156,629 km (0.104 R)
• M2: 460,911 km (0.096 R)
• M3: 743,801 km (0.082 R)
• M4: 1,015,470 km (0.11 R)
• M5: 1,289,234 km (0.036 R)
• M6: 1,707,809 km (0.109 R)
• M7: 1,980,227 km (0.119 R)
• M8: 2,620,506 km (0.087 R)
• M9: 2,986,123 km (0.078 R)
• M10: 3,221,740 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.8

Radius: 12

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.49 AU - 2.03 AU

Year: 1508 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,667,666 km

• M1: 284,834 km (0.1 R)
• M2: 513,420 km (0.037 R)
• M3: 881,730 km (0.074 R)
• M4: 1,347,129 km (0.036 R)
• M5: 1,836,912 km (0.046 R)
• M6: 2,075,072 km (0.116 R)
• M7: 2,577,272 km (0.114 R)
• M8: 3,173,120 km (0.038 R)
• M9: 3,886,852 km (0.067 R)
• M10: 4,362,424 km (0.106 R)
• M11: 4,676,130 km (0.11 R)
• M12: 5,321,495 km (0.057 R)
• M13: 5,845,836 km (0.037 R)
• M14: 6,209,658 km (0.054 R)
• M15: 7,720,597 km (0.112 R)
• M16: 8,196,916 km (0.111 R)
• M17: 8,747,735 km (0.065 R)
• M18: 9,734,333 km (0.052 R)
• M19: 10,553,382 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.2

Radius: 12.6

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.33 AU - 2.19 AU

Year: 1508 Days

Day: 7.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,667,666 km

• M1: 163,361 km (0.034 R)
• M2: 586,872 km (0.073 R)
• M3: 1,270,834 km (0.105 R)
• M4: 1,727,855 km (0.037 R)
• M5: 2,274,486 km (0.11 R)
• M6: 2,639,056 km (0.093 R)
• M7: 2,954,259 km (0.111 R)
• M8: 3,441,050 km (0.086 R)
• M9: 3,982,146 km (0.054 R)
• M10: 4,386,958 km (0.111 R)
• M11: 4,829,019 km (0.087 R)
• M12: 5,345,880 km (0.055 R)
• M13: 6,001,867 km (0.027 R)
• M14: 6,402,490 km (0.102 R)
• M15: 6,696,898 km (0.093 R)
• M16: 7,599,422 km (0.112 R)
• M17: 7,877,225 km (0.093 R)
• M18: 9,016,264 km (0.034 R)
• M19: 10,282,909 km (0.074 R)
• M20: 11,011,899 km (0.07 R)
• M21: 12,545,577 km (0.113 R)
• M22: 13,978,126 km (0.103 R)
• M23: 14,239,025 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.6

Radius: 10.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.33 AU - 3.77 AU

Year: 4319 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,667,666 km

• M1: 149,747 km (0.111 R)
• M2: 527,931 km (0.114 R)
• M3: 1,006,943 km (0.052 R)
• M4: 1,359,246 km (0.039 R)
• M5: 2,046,648 km (0.095 R)
• M6: 3,301,625 km (0.052 R)
• M7: 3,648,243 km (0.046 R)
• M8: 3,962,100 km (0.057 R)
• M9: 4,202,055 km (0.103 R)
• M10: 4,740,607 km (0.074 R)
• M11: 6,777,232 km (0.106 R)
• M12: 7,229,168 km (0.064 R)
• M13: 8,055,845 km (0.064 R)
• M14: 8,473,822 km (0.109 R)
• M15: 9,579,051 km (0.084 R)
• M16: 14,294,675 km (0.083 R)
• M17: 15,050,743 km (0.107 R)
• M18: 15,352,033 km (0.04 R)
• M19: 15,997,697 km (0.117 R)
• M20: 16,621,969 km (0.075 R)
• M21: 17,616,795 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.2

Radius: 11.4

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 5.03 AU - 5.23 AU

Year: 7502 Days

Day: 9.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,667,666 km

• M1: 172,486 km (0.086 R)
• M2: 886,966 km (0.061 R)
• M3: 1,556,117 km (0.072 R)
• M4: 2,052,932 km (0.118 R)
• M5: 3,101,912 km (0.055 R)
• M6: 3,378,219 km (0.119 R)
• M7: 3,644,055 km (0.092 R)
• M8: 4,256,209 km (0.104 R)
• M9: 8,468,735 km (0.046 R)
• M10: 9,107,668 km (0.115 R)
• M11: 10,887,434 km (0.072 R)
• M12: 13,174,486 km (0.062 R)
• M13: 15,303,563 km (0.106 R)
• M14: 15,586,901 km (0.118 R)
• M15: 18,306,890 km (0.081 R)
• M16: 18,565,245 km (0.117 R)
• M17: 19,829,946 km (0.111 R)
• M18: 20,369,246 km (0.114 R)
• M19: 22,428,311 km (0.089 R)
• M20: 22,656,897 km (0.098 R)
• M21: 26,040,950 km (0.051 R)
• M22: 26,287,338 km (0.104 R)
• M23: 26,596,856 km (0.113 R)
• M24: 28,300,177 km (0.1 R)
• M25: 33,449,635 km (0.067 R)
• M26: 36,077,770 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.8

Radius: 6.9

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 5.78 AU - 7 AU

Year: 10430 Days

Day: 16.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 147.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,667,666 km

• M1: 87,365 km (0.086 R)
• M2: 2,103,795 km (0.063 R)
• M3: 4,612,551 km (0.092 R)
• M4: 5,098,445 km (0.117 R)
• M5: 6,772,445 km (0.053 R)
• M6: 7,681,701 km (0.067 R)
• M7: 8,270,069 km (0.065 R)
• M8: 11,988,175 km (0.105 R)
• M9: 12,169,637 km (0.099 R)
• M10: 12,582,677 km (0.114 R)
• M11: 20,726,935 km (0.094 R)
• M12: 22,179,231 km (0.04 R)
• M13: 22,861,397 km (0.09 R)
• M14: 23,490,456 km (0.066 R)
• M15: 26,293,471 km (0.095 R)
• M16: 27,445,225 km (0.064 R)
• M17: 32,523,774 km (0.113 R)
• M18: 32,897,619 km (0.09 R)
• M19: 38,763,651 km (0.058 R)
• M20: 40,909,632 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.4

Radius: 7.2

Gravity: 19.22 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.7 AU - 8.54 AU

Year: 12267 Days

Day: 22.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 62,667,666 km

• M1: 89,759 km (0.07 R)
• M2: 650,452 km (0.111 R)
• M3: 999,463 km (0.114 R)
• M4: 1,885,532 km (0.052 R)
• M5: 2,148,076 km (0.097 R)
• M6: 2,804,062 km (0.097 R)
• M7: 3,911,835 km (0.102 R)
• M8: 4,098,982 km (0.045 R)
• M9: 4,653,541 km (0.119 R)
• M10: 5,461,220 km (0.076 R)
• M11: 6,453,353 km (0.099 R)
• M12: 7,400,906 km (0.111 R)
• M13: 8,054,349 km (0.082 R)
• M14: 8,459,909 km (0.047 R)
• M15: 8,782,293 km (0.119 R)
• M16: 12,842,379 km (0.072 R)
• M17: 15,194,057 km (0.075 R)
• M18: 15,378,362 km (0.114 R)
• M19: 18,077,257 km (0.067 R)
• M20: 20,139,314 km (0.109 R)
• M21: 20,280,684 km (0.1 R)
• M22: 21,139,825 km (0.103 R)
• M23: 21,649,205 km (0.092 R)
• M24: 22,238,920 km (0.12 R)
• M25: 24,833,695 km (0.113 R)
• M26: 25,703,906 km (0.12 R)
• M27: 26,427,062 km (0.119 R)
• M28: 28,741,341 km (0.101 R)
• M29: 28,910,387 km (0.049 R)
• M30: 31,682,585 km (0.097 R)
• M31: 32,395,568 km (0.052 R)
• M32: 33,207,137 km (0.104 R)
• M33: 35,796,377 km (0.073 R)
• M34: 36,744,678 km (0.069 R)
• M35: 40,062,011 km (0.113 R)
• M36: 42,285,185 km (0.033 R)
• M37: 50,651,745 km (0.116 R)
• M38: 51,326,581 km (0.112 R)
• M39: 51,892,509 km (0.1 R)
• M40: 53,148,234 km (0.102 R)
• M41: 61,739,340 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 804.3

Radius: 3

Gravity: 89.37 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.44 AU - 8.96 AU

Year: 13796 Days

Day: 16.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 62,667,666 km

• M1: 59,989 km (0.064 R)
• M2: 578,944 km (0.101 R)
• M3: 754,422 km (0.114 R)
• M4: 880,084 km (0.111 R)
• M5: 1,721,871 km (0.105 R)
• M6: 4,173,930 km (0.116 R)
• M7: 4,369,455 km (0.059 R)
• M8: 5,340,943 km (0.092 R)
• M9: 5,825,341 km (0.117 R)
• M10: 6,094,916 km (0.098 R)
• M11: 8,019,493 km (0.066 R)
• M12: 9,369,015 km (0.094 R)
• M13: 10,008,098 km (0.119 R)
• M14: 10,875,915 km (0.077 R)
• M15: 12,720,008 km (0.111 R)
• M16: 15,946,385 km (0.05 R)
• M17: 18,503,761 km (0.108 R)
• M18: 24,895,330 km (0.095 R)
• M19: 25,371,051 km (0.078 R)
• M20: 30,813,870 km (0.095 R)
• M21: 33,871,800 km (0.055 R)
• M22: 35,549,241 km (0.069 R)
• M23: 35,738,183 km (0.109 R)
• M24: 36,498,739 km (0.113 R)
• M25: 40,522,622 km (0.087 R)
• M26: 44,019,173 km (0.113 R)
• M27: 53,857,328 km (0.057 R)
• M28: 59,209,491 km (0.068 R)
• M29: 60,187,562 km (0.052 R)
• M30: 62,667,595 km (0.113 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 13,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit