🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.51 AU - 0.53 AU

Year: 238 Days

Day: 45.9 Hours

Environment

Temp: -110 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.9

Radius: 8.7

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.7 AU - 1.12 AU

Year: 552 Days

Day: 7 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,976,464 km

• M1: 108,159 km (0.072 R)
• M2: 478,713 km (0.1 R)
• M3: 825,481 km (0.108 R)
• M4: 1,109,867 km (0.117 R)
• M5: 1,409,362 km (0.053 R)
• M6: 1,839,156 km (0.109 R)
• M7: 2,400,896 km (0.068 R)
• M8: 2,702,186 km (0.065 R)
• M9: 3,117,171 km (0.063 R)
• M10: 3,825,666 km (0.071 R)
• M11: 4,740,906 km (0.072 R)
• M12: 5,014,221 km (0.098 R)
• M13: 5,427,710 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.8

Radius: 8.2

Gravity: 12.04 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.99 AU - 1.33 AU

Year: 794 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,976,464 km

• M1: 102,026 km (0.036 R)
• M2: 456,573 km (0.062 R)
• M3: 754,572 km (0.113 R)
• M4: 1,045,540 km (0.102 R)
• M5: 1,694,196 km (0.098 R)
• M6: 2,163,634 km (0.064 R)
• M7: 2,541,817 km (0.104 R)
• M8: 3,145,146 km (0.07 R)
• M9: 3,617,576 km (0.12 R)
• M10: 4,600,284 km (0.1 R)
• M11: 5,284,844 km (0.072 R)
• M12: 5,912,407 km (0.092 R)
• M13: 6,458,140 km (0.107 R)
• M14: 7,481,539 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.6

Radius: 11.4

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.03 AU - 1.61 AU

Year: 964 Days

Day: 14.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,976,464 km

• M1: 143,464 km (0.053 R)
• M2: 915,090 km (0.08 R)
• M3: 1,328,130 km (0.113 R)
• M4: 2,716,847 km (0.119 R)
• M5: 3,402,304 km (0.044 R)
• M6: 4,199,811 km (0.08 R)
• M7: 5,261,656 km (0.118 R)
• M8: 5,710,450 km (0.118 R)
• M9: 6,123,938 km (0.101 R)
• M10: 6,494,343 km (0.025 R)
• M11: 7,302,919 km (0.095 R)
• M12: 7,743,635 km (0.104 R)
• M13: 8,602,177 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.9

Radius: 8.8

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.34 AU - 1.54 AU

Year: 1099 Days

Day: 14.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,976,464 km

• M1: 110,104 km (0.083 R)
• M2: 419,173 km (0.116 R)
• M3: 762,052 km (0.102 R)
• M4: 1,332,019 km (0.112 R)
• M5: 1,906,176 km (0.11 R)
• M6: 2,250,700 km (0.092 R)
• M7: 3,191,521 km (0.113 R)
• M8: 4,605,670 km (0.093 R)
• M9: 4,902,023 km (0.11 R)
• M10: 5,230,839 km (0.093 R)
• M11: 5,533,176 km (0.039 R)
• M12: 5,954,594 km (0.099 R)
• M13: 6,262,167 km (0.078 R)
• M14: 6,580,362 km (0.054 R)
• M15: 7,175,462 km (0.085 R)
• M16: 7,832,047 km (0.096 R)
• M17: 8,201,703 km (0.07 R)
• M18: 8,834,502 km (0.071 R)
• M19: 9,352,260 km (0.076 R)
• M20: 9,889,915 km (0.057 R)
• M21: 10,479,630 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.4

Radius: 10.4

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.53 AU - 5.61 AU

Year: 6212 Days

Day: 10.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,976,464 km

• M1: 129,552 km (0.05 R)
• M2: 533,017 km (0.055 R)
• M3: 882,627 km (0.093 R)
• M4: 1,233,434 km (0.102 R)
• M5: 3,024,121 km (0.096 R)
• M6: 3,496,252 km (0.112 R)
• M7: 5,319,850 km (0.068 R)
• M8: 6,332,777 km (0.04 R)
• M9: 6,728,613 km (0.08 R)
• M10: 8,264,086 km (0.088 R)
• M11: 10,102,494 km (0.12 R)
• M12: 11,968,129 km (0.101 R)
• M13: 12,717,614 km (0.037 R)
• M14: 13,849,322 km (0.074 R)
• M15: 15,920,056 km (0.037 R)
• M16: 16,711,279 km (0.074 R)
• M17: 18,618,203 km (0.113 R)
• M18: 19,242,774 km (0.066 R)
• M19: 21,881,830 km (0.074 R)
• M20: 22,297,413 km (0.106 R)
• M21: 22,788,992 km (0.098 R)
• M22: 24,827,861 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.7

Radius: 6.8

Gravity: 18.83 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.38 AU - 9.54 AU

Year: 15645 Days

Day: 17 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,976,464 km

• M1: 84,523 km (0.106 R)
• M2: 302,038 km (0.046 R)
• M3: 610,808 km (0.111 R)
• M4: 870,061 km (0.12 R)
• M5: 1,635,404 km (0.063 R)
• M6: 2,248,306 km (0.075 R)
• M7: 3,081,118 km (0.093 R)
• M8: 3,682,501 km (0.078 R)
• M9: 4,424,806 km (0.098 R)
• M10: 4,901,574 km (0.046 R)
• M11: 5,525,996 km (0.094 R)
• M12: 5,917,344 km (0.039 R)
• M13: 8,008,872 km (0.049 R)
• M14: 8,510,324 km (0.062 R)
• M15: 8,873,547 km (0.08 R)
• M16: 9,465,356 km (0.118 R)
• M17: 9,911,906 km (0.102 R)
• M18: 10,140,492 km (0.092 R)
• M19: 11,089,989 km (0.086 R)
• M20: 13,441,069 km (0.073 R)
• M21: 14,512,041 km (0.069 R)
• M22: 17,477,669 km (0.06 R)
• M23: 18,406,372 km (0.118 R)
• M24: 19,815,136 km (0.031 R)
• M25: 22,945,022 km (0.069 R)
• M26: 23,648,880 km (0.047 R)
• M27: 25,954,782 km (0.116 R)
• M28: 26,280,456 km (0.1 R)
• M29: 34,413,345 km (0.078 R)
• M30: 34,938,134 km (0.09 R)
• M31: 50,696,774 km (0.099 R)
• M32: 57,581,567 km (0.055 R)
• M33: 59,066,924 km (0.034 R)
• M34: 59,819,102 km (0.078 R)
• M35: 61,150,673 km (0.094 R)
• M36: 62,113,934 km (0.101 R)
• M37: 65,464,327 km (0.088 R)
• M38: 67,285,981 km (0.073 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: 515 - 10,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit