🌌 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: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.4 AU - 0.64 AU

Year: 242 Days

Day: 20.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 42.8 °

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: 21

Radius: 9.7

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.8 AU - 1.02 AU

Year: 561 Days

Day: 7.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,818,658 km

• M1: 120,725 km (0.105 R)
• M2: 467,942 km (0.039 R)
• M3: 1,057,657 km (0.081 R)
• M4: 1,753,437 km (0.068 R)
• M5: 2,184,727 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26

Radius: 9.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.79 AU - 1.93 AU

Year: 1638 Days

Day: 5.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,818,658 km

• M1: 121,922 km (0.092 R)
• M2: 536,009 km (0.107 R)
• M3: 903,870 km (0.115 R)
• M4: 1,291,628 km (0.109 R)
• M5: 2,267,754 km (0.116 R)
• M6: 3,413,225 km (0.065 R)
• M7: 3,939,361 km (0.104 R)
• M8: 4,613,898 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.8

Radius: 14.9

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.57 AU - 4.21 AU

Year: 4030 Days

Day: 5.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,818,658 km

• M1: 197,469 km (0.091 R)
• M2: 661,073 km (0.082 R)
• M3: 1,209,948 km (0.118 R)
• M4: 1,728,005 km (0.036 R)
• M5: 2,531,046 km (0.12 R)
• M6: 4,067,566 km (0.09 R)
• M7: 4,671,194 km (0.097 R)
• M8: 6,393,813 km (0.1 R)
• M9: 7,156,613 km (0.1 R)
• M10: 7,918,664 km (0.1 R)
• M11: 8,541,141 km (0.115 R)
• M12: 9,639,788 km (0.112 R)
• M13: 11,717,552 km (0.05 R)
• M14: 16,492,866 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.4

Radius: 14.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.78 AU - 6.2 AU

Year: 7197 Days

Day: 10 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,818,658 km

• M1: 180,864 km (0.103 R)
• M2: 669,002 km (0.093 R)
• M3: 1,129,763 km (0.047 R)
• M4: 1,974,393 km (0.079 R)
• M5: 2,459,838 km (0.031 R)
• M6: 4,164,954 km (0.065 R)
• M7: 5,328,676 km (0.026 R)
• M8: 6,285,803 km (0.108 R)
• M9: 7,814,993 km (0.095 R)
• M10: 8,417,423 km (0.084 R)
• M11: 9,007,587 km (0.118 R)
• M12: 9,580,248 km (0.078 R)
• M13: 10,413,209 km (0.095 R)
• M14: 11,445,583 km (0.12 R)
• M15: 12,383,861 km (0.111 R)
• M16: 13,204,555 km (0.099 R)
• M17: 14,592,674 km (0.103 R)
• M18: 15,696,108 km (0.068 R)
• M19: 17,657,934 km (0.068 R)
• M20: 18,627,478 km (0.113 R)
• M21: 27,703,282 km (0.061 R)
• M22: 32,875,927 km (0.046 R)
• M23: 34,236,669 km (0.056 R)
• M24: 35,852,925 km (0.078 R)
• M25: 36,846,853 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.4

Radius: 3.1

Gravity: 97.86 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.99 AU - 7.43 AU

Year: 12500 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 61,818,658 km

• M1: 38,746 km (0.075 R)
• M2: 145,260 km (0.038 R)
• M3: 311,014 km (0.091 R)
• M4: 723,605 km (0.111 R)
• M5: 1,774,231 km (0.106 R)
• M6: 2,361,253 km (0.035 R)
• M7: 2,509,803 km (0.118 R)
• M8: 2,710,115 km (0.11 R)
• M9: 2,849,540 km (0.066 R)
• M10: 3,193,316 km (0.061 R)
• M11: 4,296,451 km (0.078 R)
• M12: 5,896,400 km (0.109 R)
• M13: 6,411,914 km (0.086 R)
• M14: 7,086,750 km (0.108 R)
• M15: 8,089,954 km (0.112 R)
• M16: 8,725,296 km (0.032 R)
• M17: 10,261,217 km (0.108 R)
• M18: 11,181,394 km (0.07 R)
• M19: 11,968,278 km (0.102 R)
• M20: 12,154,977 km (0.107 R)
• M21: 13,052,265 km (0.119 R)
• M22: 14,620,499 km (0.092 R)
• M23: 15,486,521 km (0.117 R)
• M24: 19,038,872 km (0.094 R)
• M25: 24,072,093 km (0.102 R)
• M26: 25,584,228 km (0.107 R)
• M27: 26,206,405 km (0.104 R)
• M28: 27,373,269 km (0.075 R)
• M29: 34,855,406 km (0.067 R)
• M30: 36,135,216 km (0.111 R)
• M31: 36,264,917 km (0.063 R)
• M32: 37,181,504 km (0.119 R)
• M33: 37,845,569 km (0.077 R)
• M34: 41,996,610 km (0.081 R)
• M35: 43,738,528 km (0.086 R)
• M36: 47,832,872 km (0.098 R)
• M37: 53,848,053 km (0.119 R)
• M38: 58,363,664 km (0.112 R)
• M39: 61,448,672 km (0.118 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 16,651 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit