🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 12

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.59 AU - 0.81 AU

Year: 412 Days

Day: 10 Hours

Environment

Temp: -148 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,143,378 km

• M1: 152,440 km (0.117 R)
• M2: 751,131 km (0.059 R)
• M3: 1,145,620 km (0.083 R)
• M4: 1,769,593 km (0.102 R)
• M5: 2,154,957 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.5

Radius: 14.1

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.76 AU - 1.08 AU

Year: 620 Days

Day: 11.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 81.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,143,378 km

• M1: 175,329 km (0.032 R)
• M2: 647,908 km (0.119 R)
• M3: 1,095,804 km (0.036 R)
• M4: 1,697,337 km (0.11 R)
• M5: 2,348,088 km (0.087 R)
• M6: 3,440,901 km (0.048 R)
• M7: 4,925,959 km (0.117 R)
• M8: 5,583,741 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330

Radius: 11

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.06 AU - 1.4 AU

Year: 959 Days

Day: 8.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,143,378 km

• M1: 137,032 km (0.117 R)
• M2: 1,052,421 km (0.108 R)
• M3: 1,824,346 km (0.091 R)
• M4: 2,463,279 km (0.1 R)
• M5: 4,559,743 km (0.042 R)
• M6: 5,318,803 km (0.085 R)
• M7: 6,101,349 km (0.039 R)
• M8: 6,479,832 km (0.074 R)
• M9: 7,328,351 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 11.1

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.25 AU - 3.27 AU

Year: 3223 Days

Day: 10.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,143,378 km

• M1: 138,378 km (0.038 R)
• M2: 493,224 km (0.108 R)
• M3: 1,178,382 km (0.105 R)
• M4: 2,217,489 km (0.093 R)
• M5: 2,655,362 km (0.111 R)
• M6: 4,551,066 km (0.117 R)
• M7: 5,415,293 km (0.1 R)
• M8: 6,077,563 km (0.042 R)
• M9: 6,912,618 km (0.063 R)
• M10: 8,154,131 km (0.064 R)
• M11: 10,385,832 km (0.119 R)
• M12: 13,605,926 km (0.089 R)
• M13: 14,038,264 km (0.118 R)
• M14: 15,390,629 km (0.092 R)
• M15: 15,807,558 km (0.096 R)
• M16: 16,882,868 km (0.088 R)
• M17: 18,236,878 km (0.045 R)
• M18: 18,999,827 km (0.085 R)
• M19: 19,784,019 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.8

Radius: 13

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.79 AU - 3.15 AU

Year: 3598 Days

Day: 14.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 92.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,143,378 km

• M1: 162,014 km (0.073 R)
• M2: 587,471 km (0.109 R)
• M3: 1,292,376 km (0.088 R)
• M4: 2,690,368 km (0.087 R)
• M5: 5,038,755 km (0.117 R)
• M6: 8,234,764 km (0.11 R)
• M7: 9,207,749 km (0.106 R)
• M8: 15,399,006 km (0.104 R)
• M9: 16,322,773 km (0.039 R)
• M10: 16,823,627 km (0.106 R)
• M11: 17,283,042 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902

Radius: 13.7

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.54 AU - 3.6 AU

Year: 3781 Days

Day: 8.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,143,378 km

• M1: 170,392 km (0.103 R)
• M2: 914,941 km (0.096 R)
• M3: 1,752,838 km (0.038 R)
• M4: 2,236,787 km (0.096 R)
• M5: 2,880,058 km (0.113 R)
• M6: 4,189,040 km (0.061 R)
• M7: 4,762,299 km (0.062 R)
• M8: 5,552,475 km (0.105 R)
• M9: 6,276,229 km (0.115 R)
• M10: 7,094,978 km (0.098 R)
• M11: 7,983,739 km (0.053 R)
• M12: 8,868,910 km (0.076 R)
• M13: 9,655,645 km (0.111 R)
• M14: 10,660,643 km (0.089 R)
• M15: 11,826,759 km (0.116 R)
• M16: 14,841,156 km (0.063 R)
• M17: 16,351,945 km (0.037 R)
• M18: 18,272,482 km (0.043 R)
• M19: 20,205,885 km (0.061 R)
• M20: 21,291,068 km (0.117 R)
• M21: 22,558,013 km (0.06 R)
• M22: 23,503,920 km (0.033 R)
• M23: 25,866,070 km (0.114 R)
• M24: 27,064,050 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 14.5

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.7 AU - 4.2 AU

Year: 4504 Days

Day: 12.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,143,378 km

• M1: 180,265 km (0.075 R)
• M2: 650,601 km (0.08 R)
• M3: 1,286,990 km (0.059 R)
• M4: 2,294,383 km (0.109 R)
• M5: 3,603,214 km (0.083 R)
• M6: 4,245,737 km (0.075 R)
• M7: 5,139,285 km (0.059 R)
• M8: 5,810,531 km (0.109 R)
• M9: 6,778,130 km (0.057 R)
• M10: 8,334,995 km (0.118 R)
• M11: 8,936,079 km (0.117 R)
• M12: 9,397,289 km (0.106 R)
• M13: 10,154,554 km (0.102 R)
• M14: 13,045,682 km (0.056 R)
• M15: 14,209,404 km (0.103 R)
• M16: 15,488,167 km (0.117 R)
• M17: 16,398,619 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.2

Radius: 12.7

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.7 AU - 3.76 AU

Year: 5064 Days

Day: 5.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,143,378 km

• M1: 158,275 km (0.061 R)
• M2: 728,242 km (0.059 R)
• M3: 1,786,199 km (0.076 R)
• M4: 2,396,857 km (0.101 R)
• M5: 2,816,778 km (0.071 R)
• M6: 4,017,301 km (0.11 R)
• M7: 5,387,319 km (0.108 R)
• M8: 5,927,816 km (0.075 R)
• M9: 7,013,298 km (0.109 R)
• M10: 7,439,353 km (0.052 R)
• M11: 9,362,583 km (0.04 R)
• M12: 12,195,368 km (0.11 R)
• M13: 14,736,138 km (0.105 R)
• M14: 15,319,271 km (0.081 R)
• M15: 17,417,530 km (0.087 R)
• M16: 19,841,465 km (0.095 R)
• M17: 20,266,173 km (0.096 R)
• M18: 21,726,398 km (0.059 R)
• M19: 25,598,589 km (0.089 R)
• M20: 26,612,713 km (0.045 R)
• M21: 27,829,393 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.3

Radius: 4.7

Gravity: 23.96 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.89 AU - 8.27 AU

Year: 16145 Days

Day: 20.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,143,378 km

• M1: 94,247 km (0.076 R)
• M2: 904,918 km (0.09 R)
• M3: 2,456,397 km (0.076 R)
• M4: 2,833,084 km (0.105 R)
• M5: 4,075,794 km (0.116 R)
• M6: 4,380,674 km (0.084 R)
• M7: 4,700,814 km (0.106 R)
• M8: 6,539,521 km (0.104 R)
• M9: 11,198,897 km (0.075 R)
• M10: 12,478,557 km (0.117 R)
• M11: 14,471,051 km (0.115 R)
• M12: 17,365,620 km (0.101 R)
• M13: 19,924,641 km (0.066 R)
• M14: 20,623,712 km (0.095 R)
• M15: 21,248,732 km (0.099 R)
• M16: 26,395,946 km (0.104 R)
• M17: 27,452,256 km (0.059 R)
• M18: 31,370,673 km (0.114 R)
• M19: 31,722,976 km (0.103 R)
• M20: 34,139,132 km (0.108 R)
• M21: 34,387,315 km (0.072 R)
• M22: 34,636,694 km (0.105 R)
• M23: 36,416,011 km (0.108 R)
• M24: 42,547,130 km (0.08 R)
• M25: 50,287,025 km (0.099 R)
• M26: 52,399,945 km (0.078 R)
• M27: 59,809,528 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 363.1

Radius: 3.7

Gravity: 26.52 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.18 AU - 9.42 AU

Year: 18350 Days

Day: 15.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,143,378 km

• M1: 46,226 km (0.074 R)
• M2: 162,164 km (0.026 R)
• M3: 341,682 km (0.101 R)
• M4: 561,291 km (0.087 R)
• M5: 809,624 km (0.101 R)
• M6: 1,114,953 km (0.106 R)
• M7: 1,861,895 km (0.059 R)
• M8: 2,431,713 km (0.101 R)
• M9: 4,633,046 km (0.054 R)
• M10: 4,762,448 km (0.078 R)
• M11: 5,062,841 km (0.078 R)
• M12: 6,391,120 km (0.086 R)
• M13: 6,511,397 km (0.113 R)
• M14: 7,007,463 km (0.084 R)
• M15: 7,135,220 km (0.111 R)
• M16: 7,439,652 km (0.113 R)
• M17: 8,549,369 km (0.089 R)
• M18: 9,659,385 km (0.092 R)
• M19: 13,625,972 km (0.095 R)
• M20: 15,927,536 km (0.107 R)
• M21: 17,363,526 km (0.045 R)
• M22: 19,803,018 km (0.109 R)
• M23: 20,927,695 km (0.084 R)
• M24: 21,104,370 km (0.03 R)
• M25: 21,821,243 km (0.093 R)
• M26: 22,277,367 km (0.114 R)
• M27: 23,972,311 km (0.094 R)
• M28: 27,194,200 km (0.072 R)
• M29: 32,550,103 km (0.12 R)
• M30: 33,626,909 km (0.071 R)
• M31: 33,991,030 km (0.117 R)
• M32: 37,647,501 km (0.115 R)
• M33: 43,826,491 km (0.087 R)
• M34: 43,971,003 km (0.083 R)
• M35: 44,991,260 km (0.108 R)
• M36: 47,230,741 km (0.113 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 18,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit