🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.45 AU - 0.73 AU

Year: 293 Days

Day: 17.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.2

Radius: 11.7

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.55 AU - 0.89 AU

Year: 394 Days

Day: 5.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,756,615 km

• M1: 147,952 km (0.077 R)
• M2: 619,335 km (0.116 R)
• M3: 1,020,706 km (0.061 R)
• M4: 1,414,597 km (0.095 R)
• M5: 1,888,972 km (0.081 R)
• M6: 2,263,117 km (0.118 R)
• M7: 2,706,973 km (0.109 R)
• M8: 3,121,060 km (0.029 R)
• M9: 3,735,309 km (0.105 R)
• M10: 4,157,474 km (0.089 R)
• M11: 4,697,523 km (0.077 R)
• M12: 5,331,070 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.9

Radius: 8.3

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.32 AU - 3.24 AU

Year: 2993 Days

Day: 11.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,756,615 km

• M1: 112,348 km (0.096 R)
• M2: 415,134 km (0.03 R)
• M3: 1,254,229 km (0.116 R)
• M4: 1,719,328 km (0.068 R)
• M5: 3,578,979 km (0.099 R)
• M6: 4,053,803 km (0.09 R)
• M7: 7,754,854 km (0.118 R)
• M8: 10,179,238 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.5

Radius: 13.1

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.77 AU - 5.81 AU

Year: 6769 Days

Day: 5.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,756,615 km

• M1: 162,912 km (0.113 R)
• M2: 585,227 km (0.104 R)
• M3: 1,245,402 km (0.089 R)
• M4: 2,022,713 km (0.095 R)
• M5: 4,422,711 km (0.115 R)
• M6: 5,971,498 km (0.093 R)
• M7: 6,469,809 km (0.085 R)
• M8: 7,027,958 km (0.053 R)
• M9: 7,550,653 km (0.071 R)
• M10: 8,064,372 km (0.111 R)
• M11: 9,238,566 km (0.116 R)
• M12: 10,028,592 km (0.095 R)
• M13: 11,743,283 km (0.049 R)
• M14: 13,103,427 km (0.083 R)
• M15: 15,094,874 km (0.114 R)
• M16: 15,691,321 km (0.111 R)
• M17: 16,758,701 km (0.036 R)
• M18: 18,114,806 km (0.038 R)
• M19: 22,763,111 km (0.041 R)
• M20: 24,277,341 km (0.113 R)
• M21: 25,399,325 km (0.06 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.7

Radius: 5

Gravity: 16.83 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.21 AU - 8.23 AU

Year: 15217 Days

Day: 17.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 63,756,615 km

• M1: 62,233 km (0.075 R)
• M2: 255,064 km (0.12 R)
• M3: 582,534 km (0.085 R)
• M4: 997,668 km (0.093 R)
• M5: 1,681,779 km (0.094 R)
• M6: 1,910,365 km (0.087 R)
• M7: 2,350,931 km (0.058 R)
• M8: 2,637,410 km (0.06 R)
• M9: 3,063,465 km (0.089 R)
• M10: 3,507,920 km (0.114 R)
• M11: 3,772,858 km (0.107 R)
• M12: 4,108,406 km (0.092 R)
• M13: 4,870,907 km (0.105 R)
• M14: 5,067,179 km (0.108 R)
• M15: 5,652,107 km (0.072 R)
• M16: 5,868,874 km (0.105 R)
• M17: 6,671,766 km (0.049 R)
• M18: 7,037,383 km (0.106 R)
• M19: 10,785,857 km (0.104 R)
• M20: 11,518,138 km (0.111 R)
• M21: 11,750,015 km (0.094 R)
• M22: 16,916,677 km (0.107 R)
• M23: 17,519,556 km (0.111 R)
• M24: 17,826,232 km (0.113 R)
• M25: 19,169,920 km (0.12 R)
• M26: 20,494,759 km (0.114 R)
• M27: 21,440,367 km (0.109 R)
• M28: 23,049,741 km (0.114 R)
• M29: 23,603,702 km (0.041 R)
• M30: 24,261,035 km (0.104 R)
• M31: 25,027,125 km (0.094 R)
• M32: 25,908,257 km (0.064 R)
• M33: 26,406,418 km (0.072 R)
• M34: 29,101,124 km (0.088 R)
• M35: 29,639,527 km (0.055 R)
• M36: 35,638,701 km (0.036 R)
• M37: 37,129,444 km (0.11 R)
• M38: 40,902,900 km (0.035 R)
• M39: 42,951,344 km (0.042 R)
• M40: 45,787,570 km (0.06 R)
• M41: 46,077,939 km (0.107 R)
• M42: 51,987,504 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261.3

Radius: 7.6

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 8.71 AU - 11.37 AU

Year: 20541 Days

Day: 23.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 63,756,615 km

• M1: 94,546 km (0.114 R)
• M2: 549,922 km (0.026 R)
• M3: 1,392,607 km (0.119 R)
• M4: 2,498,883 km (0.083 R)
• M5: 3,903,158 km (0.099 R)
• M6: 4,338,937 km (0.109 R)
• M7: 4,871,505 km (0.099 R)
• M8: 6,066,642 km (0.078 R)
• M9: 6,492,099 km (0.065 R)
• M10: 7,798,986 km (0.088 R)
• M11: 9,222,410 km (0.1 R)
• M12: 11,611,787 km (0.028 R)
• M13: 12,823,230 km (0.06 R)
• M14: 13,202,610 km (0.085 R)
• M15: 13,719,920 km (0.112 R)
• M16: 15,495,048 km (0.113 R)
• M17: 17,264,641 km (0.032 R)
• M18: 18,677,444 km (0.099 R)
• M19: 21,113,047 km (0.103 R)
• M20: 23,658,155 km (0.071 R)
• M21: 30,564,042 km (0.113 R)
• M22: 32,977,504 km (0.114 R)
• M23: 35,145,028 km (0.106 R)
• M24: 37,920,816 km (0.064 R)
• M25: 38,965,458 km (0.098 R)
• M26: 42,353,551 km (0.106 R)
• M27: 44,477,990 km (0.057 R)
• M28: 45,639,468 km (0.108 R)
• M29: 51,117,592 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 919.1

Radius: 7.7

Gravity: 15.5 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 9.34 AU - 10.98 AU

Year: 20910 Days

Day: 24.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,756,615 km

• M1: 95,892 km (0.12 R)
• M2: 429,944 km (0.117 R)
• M3: 1,027,887 km (0.073 R)
• M4: 1,381,237 km (0.065 R)
• M5: 1,684,622 km (0.106 R)
• M6: 3,342,316 km (0.069 R)
• M7: 3,830,005 km (0.117 R)
• M8: 4,985,349 km (0.085 R)
• M9: 7,654,175 km (0.09 R)
• M10: 7,912,381 km (0.1 R)
• M11: 9,176,184 km (0.114 R)
• M12: 9,586,232 km (0.085 R)
• M13: 14,699,188 km (0.098 R)
• M14: 16,172,128 km (0.094 R)
• M15: 19,600,163 km (0.116 R)
• M16: 27,009,148 km (0.083 R)
• M17: 33,003,235 km (0.108 R)
• M18: 36,818,430 km (0.106 R)
• M19: 46,670,796 km (0.1 R)
• M20: 48,232,747 km (0.058 R)
• M21: 54,448,688 km (0.062 R)
• M22: 61,590,042 km (0.107 R)
• M23: 66,031,154 km (0.112 R)
• M24: 74,133,075 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.6

Radius: 3

Gravity: 87.07 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 8.18 AU - 13.38 AU

Year: 22853 Days

Day: 22.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,756,615 km

• M1: 37,699 km (0.077 R)
• M2: 596,746 km (0.116 R)
• M3: 775,366 km (0.109 R)
• M4: 1,180,028 km (0.097 R)
• M5: 1,748,500 km (0.04 R)
• M6: 3,424,295 km (0.114 R)
• M7: 3,732,916 km (0.096 R)
• M8: 4,548,972 km (0.079 R)
• M9: 11,912,329 km (0.098 R)
• M10: 12,980,458 km (0.103 R)
• M11: 14,899,798 km (0.081 R)
• M12: 19,673,766 km (0.059 R)
• M13: 28,103,456 km (0.114 R)
• M14: 28,721,594 km (0.086 R)
• M15: 34,698,478 km (0.098 R)
• M16: 42,576,452 km (0.074 R)
• M17: 43,555,570 km (0.032 R)
• M18: 45,389,490 km (0.066 R)
• M19: 49,210,369 km (0.051 R)
• M20: 61,532,895 km (0.062 R)
• M21: 72,708,754 km (0.079 R)
• M22: 86,715,004 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.4

Radius: 5.1

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.61 AU - 11.17 AU

Year: 23204 Days

Day: 24.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,756,615 km

• M1: 63,429 km (0.099 R)
• M2: 769,681 km (0.1 R)
• M3: 1,070,672 km (0.097 R)
• M4: 1,584,989 km (0.109 R)
• M5: 3,669,935 km (0.116 R)
• M6: 5,378,791 km (0.075 R)
• M7: 9,071,016 km (0.072 R)
• M8: 9,280,005 km (0.081 R)
• M9: 9,926,567 km (0.117 R)
• M10: 14,806,898 km (0.116 R)
• M11: 17,880,087 km (0.06 R)
• M12: 20,356,829 km (0.106 R)
• M13: 26,826,638 km (0.114 R)
• M14: 32,674,269 km (0.103 R)
• M15: 33,042,579 km (0.093 R)
• M16: 36,878,717 km (0.098 R)
• M17: 37,949,689 km (0.084 R)
• M18: 41,861,075 km (0.094 R)
• M19: 51,295,464 km (0.106 R)
• M20: 54,500,150 km (0.05 R)
• M21: 55,539,107 km (0.038 R)
• M22: 61,677,706 km (0.096 R)
• M23: 63,375,193 km (0.052 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 20,104 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit