🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328

Radius: 11.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.5 AU - 0.82 AU

Year: 364 Days

Day: 6.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,828,931 km

• M1: 148,102 km (0.08 R)
• M2: 552,166 km (0.096 R)
• M3: 1,227,750 km (0.101 R)
• M4: 1,762,562 km (0.102 R)
• M5: 2,202,679 km (0.049 R)
• M6: 3,177,908 km (0.042 R)
• M7: 3,940,258 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.6

Radius: 10.7

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.91 AU - 1.47 AU

Year: 880 Days

Day: 7.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 20,828,931 km

• M1: 251,773 km (0.11 R)
• M2: 720,463 km (0.096 R)
• M3: 1,369,718 km (0.044 R)
• M4: 1,796,820 km (0.066 R)
• M5: 2,784,465 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.7

Radius: 14.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.8 AU - 1.86 AU

Year: 1679 Days

Day: 11.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,828,931 km

• M1: 180,415 km (0.029 R)
• M2: 841,189 km (0.11 R)
• M3: 1,477,728 km (0.1 R)
• M4: 2,392,070 km (0.08 R)
• M5: 2,904,742 km (0.114 R)
• M6: 3,991,421 km (0.075 R)
• M7: 4,760,503 km (0.103 R)
• M8: 5,378,343 km (0.116 R)
• M9: 5,835,514 km (0.086 R)
• M10: 7,532,402 km (0.037 R)
• M11: 7,989,424 km (0.104 R)
• M12: 8,556,250 km (0.106 R)
• M13: 9,506,047 km (0.112 R)
• M14: 11,133,971 km (0.077 R)
• M15: 11,842,467 km (0.089 R)
• M16: 14,409,117 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.7

Radius: 13.4

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.47 AU - 3.47 AU

Year: 3472 Days

Day: 6.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,828,931 km

• M1: 166,652 km (0.093 R)
• M2: 693,685 km (0.11 R)
• M3: 1,296,565 km (0.112 R)
• M4: 1,727,107 km (0.087 R)
• M5: 2,373,370 km (0.082 R)
• M6: 3,542,777 km (0.085 R)
• M7: 4,383,367 km (0.095 R)
• M8: 7,479,894 km (0.071 R)
• M9: 8,493,270 km (0.098 R)
• M10: 9,128,612 km (0.1 R)
• M11: 10,285,901 km (0.077 R)
• M12: 11,008,459 km (0.072 R)
• M13: 11,719,198 km (0.072 R)
• M14: 13,232,380 km (0.091 R)
• M15: 13,730,990 km (0.093 R)
• M16: 14,345,987 km (0.101 R)
• M17: 15,302,815 km (0.109 R)
• M18: 16,075,937 km (0.082 R)
• M19: 17,166,804 km (0.08 R)
• M20: 19,560,071 km (0.095 R)
• M21: 20,405,000 km (0.094 R)
• M22: 22,872,168 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.5

Radius: 13.3

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.45 AU - 4.01 AU

Year: 3937 Days

Day: 12 Hours

Environment

Temp: -212 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,828,931 km

• M1: 169,195 km (0.061 R)
• M2: 596,297 km (0.059 R)
• M3: 1,087,427 km (0.094 R)
• M4: 1,753,586 km (0.032 R)
• M5: 2,356,017 km (0.112 R)
• M6: 2,820,369 km (0.108 R)
• M7: 3,654,526 km (0.101 R)
• M8: 4,141,767 km (0.056 R)
• M9: 4,748,087 km (0.065 R)
• M10: 5,385,523 km (0.105 R)
• M11: 6,261,868 km (0.108 R)
• M12: 6,734,747 km (0.067 R)
• M13: 7,931,679 km (0.076 R)
• M14: 10,220,676 km (0.12 R)
• M15: 11,941,052 km (0.066 R)
• M16: 12,770,273 km (0.074 R)
• M17: 16,714,121 km (0.081 R)
• M18: 17,136,436 km (0.072 R)
• M19: 19,955,907 km (0.115 R)
• M20: 21,546,731 km (0.053 R)
• M21: 23,746,867 km (0.064 R)
• M22: 25,058,092 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.4

Radius: 12.6

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.55 AU - 4.09 AU

Year: 4103 Days

Day: 5.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,828,931 km

• M1: 638,484 km (0.092 R)
• M2: 1,357,750 km (0.088 R)
• M3: 2,003,265 km (0.116 R)
• M4: 2,455,799 km (0.062 R)
• M5: 2,924,190 km (0.115 R)
• M6: 3,466,931 km (0.093 R)
• M7: 5,613,361 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.5

Radius: 12.4

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.08 AU - 4.54 AU

Year: 5044 Days

Day: 9.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,828,931 km

• M1: 154,684 km (0.096 R)
• M2: 857,495 km (0.109 R)
• M3: 1,302,549 km (0.071 R)
• M4: 2,012,540 km (0.118 R)
• M5: 2,412,864 km (0.11 R)
• M6: 3,490,717 km (0.109 R)
• M7: 4,507,085 km (0.085 R)
• M8: 6,351,926 km (0.101 R)
• M9: 9,763,355 km (0.116 R)
• M10: 10,645,684 km (0.06 R)
• M11: 12,491,123 km (0.082 R)
• M12: 13,408,008 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.8

Radius: 14.2

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.59 AU - 5.35 AU

Year: 6410 Days

Day: 8 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,828,931 km

• M1: 176,825 km (0.113 R)
• M2: 639,680 km (0.119 R)
• M3: 1,197,531 km (0.068 R)
• M4: 1,695,841 km (0.1 R)
• M5: 2,173,657 km (0.117 R)
• M6: 2,651,173 km (0.038 R)
• M7: 3,862,019 km (0.103 R)
• M8: 4,311,261 km (0.1 R)
• M9: 5,003,899 km (0.106 R)
• M10: 5,590,472 km (0.099 R)
• M11: 6,277,426 km (0.063 R)
• M12: 7,568,306 km (0.063 R)
• M13: 10,205,118 km (0.084 R)
• M14: 11,480,589 km (0.117 R)
• M15: 12,815,002 km (0.114 R)
• M16: 13,776,169 km (0.119 R)
• M17: 14,491,845 km (0.083 R)
• M18: 15,945,787 km (0.092 R)
• M19: 16,416,122 km (0.111 R)
• M20: 17,275,413 km (0.073 R)
• M21: 18,051,676 km (0.088 R)
• M22: 19,083,752 km (0.111 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 15,981 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit