🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.66 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.2

Radius: 8.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.28 AU - 1.36 AU

Year: 964 Days

Day: 14.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,953,321 km

• M1: 108,309 km (0.079 R)
• M2: 404,812 km (0.035 R)
• M3: 764,894 km (0.116 R)
• M4: 1,847,683 km (0.103 R)
• M5: 2,397,455 km (0.082 R)
• M6: 3,847,208 km (0.12 R)
• M7: 5,233,682 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.7

Radius: 11.6

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.54 AU - 1.82 AU

Year: 1385 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,953,321 km

• M1: 145,409 km (0.111 R)
• M2: 654,341 km (0.059 R)
• M3: 1,232,088 km (0.03 R)
• M4: 2,206,269 km (0.085 R)
• M5: 3,268,713 km (0.109 R)
• M6: 3,830,753 km (0.1 R)
• M7: 4,208,039 km (0.079 R)
• M8: 5,038,157 km (0.117 R)
• M9: 6,999,535 km (0.112 R)
• M10: 8,037,146 km (0.073 R)
• M11: 9,174,389 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.2

Radius: 11.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.08 AU - 2.82 AU

Year: 2438 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,953,321 km

• M1: 144,362 km (0.038 R)
• M2: 925,263 km (0.113 R)
• M3: 1,571,226 km (0.106 R)
• M4: 2,488,411 km (0.059 R)
• M5: 3,228,322 km (0.075 R)
• M6: 3,732,616 km (0.111 R)
• M7: 4,325,622 km (0.11 R)
• M8: 6,273,536 km (0.072 R)
• M9: 7,642,357 km (0.056 R)
• M10: 8,987,990 km (0.111 R)
• M11: 11,632,282 km (0.118 R)
• M12: 12,180,408 km (0.11 R)
• M13: 12,669,294 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.8

Radius: 13.7

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.47 AU - 3.83 AU

Year: 4434 Days

Day: 13.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,953,321 km

• M1: 170,392 km (0.105 R)
• M2: 852,558 km (0.084 R)
• M3: 1,472,342 km (0.073 R)
• M4: 2,159,146 km (0.084 R)
• M5: 4,841,585 km (0.058 R)
• M6: 6,560,465 km (0.089 R)
• M7: 7,628,893 km (0.1 R)
• M8: 8,849,163 km (0.103 R)
• M9: 12,198,510 km (0.087 R)
• M10: 14,022,706 km (0.107 R)
• M11: 15,279,627 km (0.11 R)
• M12: 16,256,053 km (0.092 R)
• M13: 18,460,527 km (0.11 R)
• M14: 18,911,265 km (0.064 R)
• M15: 19,835,032 km (0.086 R)
• M16: 20,927,246 km (0.097 R)
• M17: 21,701,116 km (0.098 R)
• M18: 23,455,899 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.8

Radius: 11.2

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.73 AU - 4.71 AU

Year: 5512 Days

Day: 13.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,953,321 km

• M1: 140,921 km (0.066 R)
• M2: 828,473 km (0.091 R)
• M3: 1,437,785 km (0.093 R)
• M4: 1,960,181 km (0.068 R)
• M5: 2,825,156 km (0.088 R)
• M6: 3,317,931 km (0.107 R)
• M7: 3,788,416 km (0.114 R)
• M8: 5,101,886 km (0.104 R)
• M9: 12,994,370 km (0.114 R)
• M10: 14,558,117 km (0.042 R)
• M11: 16,456,663 km (0.074 R)
• M12: 17,271,373 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.4

Radius: 10.2

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.63 AU - 5.37 AU

Year: 6069 Days

Day: 6.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,953,321 km

• M1: 147,653 km (0.063 R)
• M2: 600,935 km (0.105 R)
• M3: 1,129,614 km (0.096 R)
• M4: 1,596,808 km (0.085 R)
• M5: 2,493,647 km (0.108 R)
• M6: 2,891,876 km (0.115 R)
• M7: 3,817,139 km (0.097 R)
• M8: 4,370,951 km (0.059 R)
• M9: 5,773,131 km (0.102 R)
• M10: 6,591,881 km (0.096 R)
• M11: 9,141,926 km (0.078 R)
• M12: 11,624,652 km (0.094 R)
• M13: 12,332,100 km (0.064 R)
• M14: 14,830,385 km (0.107 R)
• M15: 16,361,070 km (0.111 R)
• M16: 19,365,444 km (0.079 R)

Asteroid Belt

Center: 4.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248

Radius: 11.9

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.23 AU - 5.47 AU

Year: 7868 Days

Day: 8.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,953,321 km

• M1: 157,527 km (0.067 R)
• M2: 797,656 km (0.101 R)
• M3: 1,316,910 km (0.065 R)
• M4: 1,725,013 km (0.09 R)
• M5: 2,309,492 km (0.109 R)
• M6: 3,834,493 km (0.106 R)
• M7: 6,530,994 km (0.111 R)
• M8: 10,169,364 km (0.073 R)
• M9: 11,005,317 km (0.089 R)
• M10: 12,029,763 km (0.095 R)
• M11: 12,466,888 km (0.101 R)
• M12: 13,116,891 km (0.108 R)
• M13: 13,736,675 km (0.085 R)
• M14: 14,430,360 km (0.08 R)
• M15: 14,868,532 km (0.075 R)
• M16: 16,891,694 km (0.083 R)
• M17: 20,295,345 km (0.099 R)
• M18: 28,085,504 km (0.091 R)
• M19: 28,769,615 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.8

Radius: 4.9

Gravity: 26.81 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 7.62 AU - 11.62 AU

Year: 18971 Days

Day: 22.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 71,953,321 km

• M1: 61,186 km (0.102 R)
• M2: 293,960 km (0.05 R)
• M3: 726,746 km (0.108 R)
• M4: 912,996 km (0.081 R)
• M5: 1,267,094 km (0.099 R)
• M6: 1,507,647 km (0.096 R)
• M7: 1,906,625 km (0.072 R)
• M8: 2,506,213 km (0.099 R)
• M9: 3,117,021 km (0.1 R)
• M10: 4,662,068 km (0.094 R)
• M11: 5,857,056 km (0.036 R)
• M12: 6,481,926 km (0.105 R)
• M13: 6,877,762 km (0.075 R)
• M14: 10,824,752 km (0.088 R)
• M15: 13,445,109 km (0.1 R)
• M16: 16,219,102 km (0.086 R)
• M17: 17,361,282 km (0.091 R)
• M18: 21,012,816 km (0.104 R)
• M19: 23,067,543 km (0.082 R)
• M20: 23,575,727 km (0.118 R)
• M21: 24,720,001 km (0.12 R)
• M22: 27,006,604 km (0.065 R)
• M23: 27,799,024 km (0.091 R)
• M24: 30,633,754 km (0.118 R)
• M25: 33,138,621 km (0.112 R)
• M26: 33,525,780 km (0.03 R)
• M27: 39,266,599 km (0.041 R)
• M28: 44,680,994 km (0.071 R)
• M29: 47,239,268 km (0.091 R)
• M30: 48,388,478 km (0.117 R)
• M31: 49,220,841 km (0.114 R)
• M32: 51,085,279 km (0.078 R)
• M33: 57,330,242 km (0.056 R)
• M34: 58,074,791 km (0.054 R)
• M35: 59,393,197 km (0.103 R)
• M36: 64,264,852 km (0.071 R)
• M37: 70,880,369 km (0.091 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 19,809 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit