🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615

Radius: 9.9

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.72 AU - 1.12 AU

Year: 570 Days

Day: 12.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,708,909 km

• M1: 124,166 km (0.112 R)
• M2: 540,647 km (0.037 R)
• M3: 918,980 km (0.08 R)
• M4: 1,518,119 km (0.081 R)
• M5: 3,830,453 km (0.059 R)
• M6: 4,612,102 km (0.045 R)
• M7: 5,410,207 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.5

Radius: 13.1

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.99 AU - 1.37 AU

Year: 828 Days

Day: 9.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,708,909 km

• M1: 162,912 km (0.077 R)
• M2: 590,762 km (0.085 R)
• M3: 1,231,938 km (0.084 R)
• M4: 1,703,172 km (0.074 R)
• M5: 2,130,423 km (0.092 R)
• M6: 2,748,861 km (0.087 R)
• M7: 3,456,758 km (0.072 R)
• M8: 3,931,432 km (0.074 R)
• M9: 5,143,324 km (0.069 R)
• M10: 6,590,534 km (0.056 R)
• M11: 7,160,053 km (0.076 R)
• M12: 7,712,817 km (0.07 R)
• M13: 8,662,016 km (0.071 R)
• M14: 9,206,552 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.5

Radius: 11.7

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.21 AU - 1.79 AU

Year: 1186 Days

Day: 10.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,708,909 km

• M1: 145,559 km (0.088 R)
• M2: 541,245 km (0.12 R)
• M3: 1,122,732 km (0.114 R)
• M4: 1,882,839 km (0.093 R)
• M5: 2,266,557 km (0.101 R)
• M6: 2,912,222 km (0.111 R)
• M7: 3,621,316 km (0.076 R)
• M8: 3,994,862 km (0.109 R)
• M9: 5,009,285 km (0.111 R)
• M10: 5,949,956 km (0.096 R)
• M11: 6,661,294 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.8

Radius: 14.6

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.27 AU - 3.53 AU

Year: 4048 Days

Day: 11.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,708,909 km

• M1: 181,612 km (0.107 R)
• M2: 1,078,152 km (0.084 R)
• M3: 1,622,239 km (0.073 R)
• M4: 2,108,732 km (0.081 R)
• M5: 2,677,652 km (0.049 R)
• M6: 3,684,296 km (0.106 R)
• M7: 4,424,806 km (0.108 R)
• M8: 4,880,780 km (0.059 R)
• M9: 8,244,638 km (0.101 R)
• M10: 9,128,911 km (0.088 R)
• M11: 10,615,166 km (0.067 R)
• M12: 11,482,983 km (0.116 R)
• M13: 13,708,850 km (0.113 R)
• M14: 15,653,622 km (0.111 R)
• M15: 19,633,374 km (0.052 R)
• M16: 20,808,017 km (0.104 R)
• M17: 23,949,422 km (0.101 R)
• M18: 25,442,259 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.9

Radius: 12.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.74 AU - 5.92 AU

Year: 7945 Days

Day: 6.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,708,909 km

• M1: 159,621 km (0.096 R)
• M2: 604,076 km (0.09 R)
• M3: 1,934,300 km (0.07 R)
• M4: 4,089,258 km (0.042 R)
• M5: 5,372,209 km (0.091 R)
• M6: 6,411,017 km (0.08 R)
• M7: 7,670,182 km (0.101 R)
• M8: 9,644,575 km (0.034 R)
• M9: 11,214,754 km (0.102 R)
• M10: 14,109,024 km (0.102 R)
• M11: 16,892,292 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.9

Radius: 3.7

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 6.06 AU - 6.56 AU

Year: 10234 Days

Day: 23.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,708,909 km

• M1: 100,679 km (0.09 R)
• M2: 458,517 km (0.104 R)
• M3: 1,316,162 km (0.058 R)
• M4: 1,955,543 km (0.091 R)
• M5: 2,695,006 km (0.12 R)
• M6: 2,990,312 km (0.089 R)
• M7: 6,597,266 km (0.067 R)
• M8: 7,295,140 km (0.062 R)
• M9: 7,460,446 km (0.081 R)
• M10: 9,922,677 km (0.107 R)
• M11: 13,911,854 km (0.112 R)
• M12: 14,736,288 km (0.063 R)
• M13: 15,484,128 km (0.111 R)
• M14: 15,757,144 km (0.115 R)
• M15: 16,425,547 km (0.09 R)
• M16: 19,351,981 km (0.098 R)
• M17: 20,771,964 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.6

Radius: 5.5

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.54 AU - 7.88 AU

Year: 11223 Days

Day: 23.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,708,909 km

• M1: 68,665 km (0.033 R)
• M2: 313,856 km (0.084 R)
• M3: 1,131,857 km (0.091 R)
• M4: 1,564,195 km (0.115 R)
• M5: 2,018,823 km (0.118 R)
• M6: 2,784,465 km (0.062 R)
• M7: 3,279,335 km (0.113 R)
• M8: 3,810,258 km (0.108 R)
• M9: 4,283,735 km (0.093 R)
• M10: 4,723,403 km (0.117 R)
• M11: 5,041,299 km (0.084 R)
• M12: 6,223,870 km (0.117 R)
• M13: 6,787,555 km (0.075 R)
• M14: 9,122,927 km (0.051 R)
• M15: 10,007,350 km (0.086 R)
• M16: 11,244,973 km (0.096 R)
• M17: 12,351,399 km (0.075 R)
• M18: 12,720,457 km (0.038 R)
• M19: 13,383,624 km (0.098 R)
• M20: 15,779,135 km (0.091 R)
• M21: 17,972,389 km (0.084 R)
• M22: 19,295,133 km (0.108 R)
• M23: 19,980,142 km (0.115 R)
• M24: 23,091,030 km (0.082 R)
• M25: 23,369,880 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 428.7

Radius: 3.1

Gravity: 44.61 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.51 AU - 9.89 AU

Year: 18018 Days

Day: 18.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 60,708,909 km

• M1: 40,541 km (0.028 R)
• M2: 154,235 km (0.057 R)
• M3: 251,624 km (0.117 R)
• M4: 410,347 km (0.092 R)
• M5: 729,589 km (0.109 R)
• M6: 1,327,980 km (0.112 R)
• M7: 1,596,060 km (0.114 R)
• M8: 1,934,899 km (0.099 R)
• M9: 2,064,151 km (0.038 R)
• M10: 2,278,824 km (0.058 R)
• M11: 2,444,280 km (0.06 R)
• M12: 3,263,627 km (0.119 R)
• M13: 3,950,581 km (0.119 R)
• M14: 5,530,334 km (0.087 R)
• M15: 6,297,472 km (0.099 R)
• M16: 7,352,586 km (0.104 R)
• M17: 7,486,625 km (0.071 R)
• M18: 8,520,197 km (0.096 R)
• M19: 9,277,013 km (0.06 R)
• M20: 10,022,908 km (0.079 R)
• M21: 11,215,203 km (0.075 R)
• M22: 12,184,896 km (0.116 R)
• M23: 13,012,771 km (0.065 R)
• M24: 13,407,260 km (0.078 R)
• M25: 17,087,667 km (0.067 R)
• M26: 17,481,110 km (0.075 R)
• M27: 18,614,762 km (0.094 R)
• M28: 19,969,371 km (0.068 R)
• M29: 20,582,124 km (0.065 R)
• M30: 21,388,157 km (0.109 R)
• M31: 22,029,633 km (0.097 R)
• M32: 23,834,830 km (0.113 R)
• M33: 26,988,054 km (0.094 R)
• M34: 28,279,682 km (0.041 R)
• M35: 29,951,438 km (0.059 R)
• M36: 30,522,902 km (0.089 R)
• M37: 35,232,991 km (0.099 R)
• M38: 43,388,618 km (0.081 R)
• M39: 51,727,952 km (0.104 R)
• M40: 57,141,001 km (0.092 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: 480 - 12,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit