🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.49 AU - 0.65 AU

Year: 274 Days

Day: 13.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.46 AU - 0.76 AU

Year: 303 Days

Day: 46.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,346,935 km

• M1: 248,482 km (0.062 R)

Asteroid Belt

Center: 1.05 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.3

Radius: 14.4

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.24 AU - 1.74 AU

Year: 1156 Days

Day: 8.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,346,935 km

• M1: 179,069 km (0.095 R)
• M2: 688,150 km (0.095 R)
• M3: 1,431,053 km (0.083 R)
• M4: 1,993,092 km (0.073 R)
• M5: 2,714,453 km (0.098 R)
• M6: 3,531,557 km (0.068 R)
• M7: 4,319,339 km (0.081 R)
• M8: 5,416,640 km (0.095 R)
• M9: 7,207,775 km (0.079 R)
• M10: 7,953,221 km (0.055 R)
• M11: 8,451,532 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.7

Radius: 11.4

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.62 AU - 3.96 AU

Year: 3794 Days

Day: 5 Hours

Environment

Temp: -204 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,346,935 km

• M1: 141,819 km (0.119 R)
• M2: 679,773 km (0.091 R)
• M3: 1,047,484 km (0.088 R)
• M4: 1,460,374 km (0.106 R)
• M5: 2,705,178 km (0.091 R)
• M6: 3,225,480 km (0.07 R)
• M7: 4,269,972 km (0.107 R)
• M8: 4,695,129 km (0.087 R)
• M9: 5,527,043 km (0.055 R)
• M10: 6,835,576 km (0.087 R)
• M11: 8,204,546 km (0.045 R)
• M12: 9,189,348 km (0.113 R)
• M13: 9,597,152 km (0.082 R)
• M14: 11,864,308 km (0.064 R)
• M15: 13,309,274 km (0.094 R)
• M16: 14,269,991 km (0.114 R)
• M17: 18,521,413 km (0.087 R)
• M18: 19,293,637 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.1

Radius: 11

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.86 AU - 6.78 AU

Year: 8927 Days

Day: 14.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 47,346,935 km

• M1: 139,575 km (0.075 R)
• M2: 638,035 km (0.115 R)
• M3: 1,027,588 km (0.055 R)
• M4: 1,756,728 km (0.052 R)
• M5: 2,648,630 km (0.117 R)
• M6: 3,153,673 km (0.103 R)
• M7: 4,493,770 km (0.107 R)
• M8: 5,368,619 km (0.053 R)
• M9: 7,074,035 km (0.091 R)
• M10: 7,571,148 km (0.098 R)
• M11: 8,091,599 km (0.077 R)
• M12: 9,338,647 km (0.092 R)
• M13: 10,415,602 km (0.086 R)
• M14: 12,593,149 km (0.1 R)
• M15: 13,210,240 km (0.09 R)
• M16: 15,817,880 km (0.116 R)
• M17: 17,828,775 km (0.1 R)
• M18: 19,630,382 km (0.107 R)
• M19: 25,052,258 km (0.091 R)
• M20: 26,208,949 km (0.076 R)
• M21: 26,846,235 km (0.064 R)
• M22: 27,400,795 km (0.07 R)
• M23: 28,628,395 km (0.113 R)
• M24: 32,845,559 km (0.099 R)
• M25: 37,920,218 km (0.034 R)
• M26: 38,501,406 km (0.059 R)
• M27: 38,853,110 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 834.2

Radius: 4.3

Gravity: 45.12 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.75 AU - 7.05 AU

Year: 10294 Days

Day: 23.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 134.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,346,935 km

• M1: 65,973 km (0.111 R)
• M2: 470,485 km (0.076 R)
• M3: 687,851 km (0.103 R)
• M4: 887,714 km (0.085 R)
• M5: 1,045,839 km (0.12 R)
• M6: 2,425,580 km (0.072 R)
• M7: 2,737,192 km (0.065 R)
• M8: 5,194,487 km (0.093 R)
• M9: 6,570,189 km (0.096 R)
• M10: 7,216,003 km (0.107 R)
• M11: 9,556,611 km (0.029 R)
• M12: 9,810,180 km (0.105 R)
• M13: 10,760,575 km (0.099 R)
• M14: 11,146,238 km (0.109 R)
• M15: 11,484,030 km (0.036 R)
• M16: 11,655,469 km (0.079 R)
• M17: 13,027,282 km (0.1 R)
• M18: 15,663,196 km (0.034 R)
• M19: 18,012,032 km (0.071 R)
• M20: 18,712,599 km (0.12 R)
• M21: 21,610,310 km (0.034 R)
• M22: 22,490,095 km (0.096 R)
• M23: 23,854,128 km (0.106 R)
• M24: 27,965,078 km (0.088 R)
• M25: 28,798,189 km (0.118 R)
• M26: 31,732,102 km (0.073 R)
• M27: 34,029,626 km (0.117 R)
• M28: 43,216,730 km (0.095 R)
• M29: 46,322,083 km (0.112 R)
• M30: 47,781,560 km (0.1 R)
• M31: 50,180,063 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.8

Radius: 3.6

Gravity: 18.12 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.52 AU - 9.2 AU

Year: 16768 Days

Day: 21.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 47,346,935 km

• M1: 44,730 km (0.102 R)
• M2: 334,650 km (0.109 R)
• M3: 528,080 km (0.096 R)
• M4: 1,426,864 km (0.052 R)
• M5: 2,072,828 km (0.051 R)
• M6: 2,479,884 km (0.072 R)
• M7: 4,074,148 km (0.117 R)
• M8: 4,241,249 km (0.082 R)
• M9: 4,383,966 km (0.082 R)
• M10: 4,924,612 km (0.08 R)
• M11: 6,064,548 km (0.11 R)
• M12: 7,914,625 km (0.08 R)
• M13: 9,809,132 km (0.058 R)
• M14: 10,313,277 km (0.052 R)
• M15: 12,619,927 km (0.105 R)
• M16: 12,975,222 km (0.1 R)
• M17: 14,399,244 km (0.077 R)
• M18: 15,992,910 km (0.119 R)
• M19: 16,408,942 km (0.109 R)
• M20: 18,597,708 km (0.045 R)
• M21: 20,645,853 km (0.111 R)
• M22: 22,405,871 km (0.114 R)
• M23: 24,263,428 km (0.112 R)
• M24: 29,506,235 km (0.094 R)
• M25: 32,610,690 km (0.06 R)
• M26: 33,391,292 km (0.115 R)
• M27: 34,528,086 km (0.062 R)
• M28: 35,807,896 km (0.093 R)
• M29: 36,162,443 km (0.098 R)
• M30: 41,894,734 km (0.094 R)
• M31: 42,552,067 km (0.083 R)
• M32: 45,664,451 km (0.101 R)
• M33: 45,941,955 km (0.05 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 19,085 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit