🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.46 AU - 0.7 AU

Year: 290 Days

Day: 47.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 75.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.8

Radius: 14.4

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.64 AU - 0.72 AU

Year: 368 Days

Day: 12.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,502,228 km

• M1: 179,069 km (0.11 R)
• M2: 638,633 km (0.089 R)
• M3: 1,132,456 km (0.03 R)
• M4: 1,631,514 km (0.096 R)
• M5: 2,193,254 km (0.076 R)
• M6: 2,680,943 km (0.037 R)
• M7: 3,344,560 km (0.105 R)
• M8: 4,431,687 km (0.12 R)
• M9: 4,912,944 km (0.113 R)
• M10: 5,576,261 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.3

Radius: 8.5

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.68 AU - 1.06 AU

Year: 532 Days

Day: 12.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 18,502,228 km

• M1: 105,766 km (0.08 R)
• M2: 436,078 km (0.078 R)
• M3: 829,371 km (0.098 R)
• M4: 1,175,690 km (0.11 R)
• M5: 1,717,384 km (0.038 R)
• M6: 2,077,017 km (0.044 R)
• M7: 2,347,639 km (0.072 R)
• M8: 2,631,427 km (0.067 R)
• M9: 2,904,143 km (0.103 R)
• M10: 3,268,713 km (0.07 R)
• M11: 3,637,323 km (0.084 R)
• M12: 4,278,798 km (0.062 R)
• M13: 4,720,561 km (0.089 R)
• M14: 5,362,485 km (0.06 R)
• M15: 5,767,596 km (0.092 R)
• M16: 6,839,914 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.4

Radius: 9.8

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.85 AU - 0.93 AU

Year: 551 Days

Day: 8 Hours

Environment

Temp: -146 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,502,228 km

• M1: 121,922 km (0.119 R)
• M2: 438,322 km (0.07 R)
• M3: 937,380 km (0.107 R)
• M4: 1,288,636 km (0.116 R)
• M5: 1,609,972 km (0.088 R)
• M6: 1,940,733 km (0.116 R)
• M7: 2,418,848 km (0.065 R)
• M8: 2,742,428 km (0.109 R)
• M9: 4,232,273 km (0.113 R)
• M10: 4,972,184 km (0.104 R)
• M11: 5,572,670 km (0.108 R)
• M12: 5,928,863 km (0.098 R)
• M13: 7,003,724 km (0.102 R)
• M14: 7,598,973 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.2

Radius: 9.8

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.93 AU - 1.47 AU

Year: 862 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 104.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,502,228 km

• M1: 121,922 km (0.11 R)
• M2: 508,932 km (0.116 R)
• M3: 817,702 km (0.093 R)
• M4: 1,134,401 km (0.066 R)
• M5: 1,450,651 km (0.11 R)
• M6: 1,791,584 km (0.053 R)
• M7: 2,196,396 km (0.093 R)
• M8: 2,525,661 km (0.071 R)
• M9: 3,075,732 km (0.106 R)
• M10: 3,718,405 km (0.119 R)
• M11: 4,317,544 km (0.051 R)
• M12: 4,962,012 km (0.098 R)
• M13: 5,363,532 km (0.046 R)
• M14: 5,886,078 km (0.09 R)
• M15: 6,336,667 km (0.101 R)
• M16: 7,169,179 km (0.099 R)
• M17: 7,803,773 km (0.111 R)
• M18: 8,603,822 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732

Radius: 11

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.6 AU - 2.42 AU

Year: 1869 Days

Day: 6.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,502,228 km

• M1: 136,882 km (0.047 R)
• M2: 552,914 km (0.062 R)
• M3: 974,481 km (0.053 R)
• M4: 1,444,367 km (0.115 R)
• M5: 1,994,289 km (0.093 R)
• M6: 2,665,984 km (0.117 R)
• M7: 3,063,166 km (0.052 R)
• M8: 3,742,340 km (0.04 R)
• M9: 4,320,536 km (0.118 R)
• M10: 5,242,508 km (0.113 R)
• M11: 6,731,605 km (0.097 R)
• M12: 8,361,773 km (0.115 R)
• M13: 8,704,352 km (0.04 R)
• M14: 9,518,314 km (0.059 R)
• M15: 10,275,728 km (0.096 R)
• M16: 13,842,291 km (0.078 R)
• M17: 14,234,686 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.2

Radius: 9.7

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.9 AU - 4.58 AU

Year: 4745 Days

Day: 10.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 18,502,228 km

• M1: 168,746 km (0.095 R)
• M2: 491,279 km (0.106 R)
• M3: 1,631,365 km (0.091 R)
• M4: 2,396,408 km (0.113 R)
• M5: 3,124,501 km (0.085 R)
• M6: 3,901,812 km (0.087 R)
• M7: 4,227,785 km (0.116 R)
• M8: 4,881,827 km (0.051 R)
• M9: 6,550,741 km (0.091 R)
• M10: 7,639,215 km (0.056 R)
• M11: 8,302,383 km (0.099 R)
• M12: 8,804,732 km (0.099 R)
• M13: 9,492,134 km (0.064 R)
• M14: 9,912,953 km (0.107 R)
• M15: 10,837,169 km (0.114 R)
• M16: 11,531,901 km (0.094 R)
• M17: 12,305,322 km (0.051 R)
• M18: 14,555,125 km (0.088 R)
• M19: 14,889,626 km (0.064 R)
• M20: 15,286,210 km (0.109 R)
• M21: 16,578,735 km (0.076 R)
• M22: 17,189,693 km (0.09 R)
• M23: 21,175,728 km (0.085 R)
• M24: 21,822,440 km (0.05 R)
• M25: 22,630,717 km (0.067 R)
• M26: 23,306,600 km (0.052 R)
• M27: 24,384,902 km (0.085 R)
• M28: 29,385,061 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.6

Radius: 10.4

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.88 AU - 4.62 AU

Year: 4764 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,502,228 km

• M1: 130,599 km (0.027 R)
• M2: 687,402 km (0.056 R)
• M3: 1,121,685 km (0.09 R)
• M4: 2,911,324 km (0.104 R)
• M5: 3,478,450 km (0.113 R)
• M6: 3,999,499 km (0.084 R)
• M7: 9,256,817 km (0.086 R)
• M8: 12,227,980 km (0.054 R)
• M9: 14,157,942 km (0.119 R)
• M10: 16,742,694 km (0.079 R)
• M11: 17,794,966 km (0.118 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: 536 - 18,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit