🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.55 AU - 0.61 AU

Year: 188 Days

Day: 33.2 Hours

Environment

Temp: 43 °C

Axial Tilt: 155.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.53 AU - 0.87 AU

Year: 249 Days

Day: 17.6 Hours

Environment

Temp: 18 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.38 AU - 2 AU

Year: 933 Days

Day: 39 Hours

Environment

Temp: -95 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.2

Radius: 10.3

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.66 AU - 3.06 AU

Year: 2054 Days

Day: 8.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,069,239 km

• M1: 128,205 km (0.116 R)
• M2: 535,261 km (0.092 R)
• M3: 1,171,651 km (0.119 R)
• M4: 1,612,815 km (0.083 R)
• M5: 1,963,023 km (0.054 R)
• M6: 3,016,342 km (0.111 R)
• M7: 3,351,740 km (0.094 R)
• M8: 5,149,907 km (0.073 R)
• M9: 7,373,829 km (0.049 R)
• M10: 9,482,859 km (0.103 R)
• M11: 9,962,620 km (0.038 R)
• M12: 11,346,400 km (0.098 R)
• M13: 11,731,016 km (0.097 R)
• M14: 13,314,958 km (0.032 R)
• M15: 15,736,948 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.4

Radius: 14.9

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.54 AU - 4.12 AU

Year: 2580 Days

Day: 13.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,069,239 km

• M1: 185,950 km (0.083 R)
• M2: 917,334 km (0.073 R)
• M3: 1,625,082 km (0.103 R)
• M4: 2,556,777 km (0.113 R)
• M5: 4,450,537 km (0.084 R)
• M6: 6,703,780 km (0.075 R)
• M7: 8,917,978 km (0.041 R)
• M8: 10,210,204 km (0.111 R)
• M9: 11,504,675 km (0.113 R)
• M10: 13,692,693 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.7

Radius: 9.9

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.13 AU - 7.33 AU

Year: 6602 Days

Day: 13.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,069,239 km

• M1: 123,269 km (0.051 R)
• M2: 517,309 km (0.1 R)
• M3: 838,197 km (0.104 R)
• M4: 1,379,292 km (0.043 R)
• M5: 2,228,559 km (0.058 R)
• M6: 2,872,578 km (0.081 R)
• M7: 5,729,598 km (0.053 R)
• M8: 6,526,506 km (0.097 R)
• M9: 7,395,670 km (0.113 R)
• M10: 10,767,456 km (0.116 R)
• M11: 11,206,077 km (0.114 R)
• M12: 11,979,049 km (0.03 R)
• M13: 12,307,417 km (0.113 R)
• M14: 12,690,088 km (0.068 R)
• M15: 13,031,471 km (0.111 R)
• M16: 15,707,178 km (0.057 R)
• M17: 16,328,907 km (0.086 R)
• M18: 18,603,842 km (0.082 R)
• M19: 22,329,876 km (0.085 R)
• M20: 22,971,800 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 450.1

Radius: 3.8

Gravity: 31.17 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 11.64 AU - 16.78 AU

Year: 22744 Days

Day: 15.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 72,069,239 km

• M1: 47,722 km (0.096 R)
• M2: 290,369 km (0.083 R)
• M3: 503,247 km (0.078 R)
• M4: 773,122 km (0.073 R)
• M5: 1,342,491 km (0.056 R)
• M6: 1,545,047 km (0.071 R)
• M7: 1,953,150 km (0.088 R)
• M8: 2,754,994 km (0.109 R)
• M9: 4,062,031 km (0.098 R)
• M10: 7,242,033 km (0.113 R)
• M11: 7,863,911 km (0.106 R)
• M12: 9,713,839 km (0.102 R)
• M13: 10,350,377 km (0.109 R)
• M14: 12,359,626 km (0.096 R)
• M15: 13,810,875 km (0.084 R)
• M16: 14,540,315 km (0.092 R)
• M17: 16,964,099 km (0.09 R)
• M18: 18,228,201 km (0.104 R)
• M19: 19,194,155 km (0.101 R)
• M20: 22,793,330 km (0.103 R)
• M21: 25,607,565 km (0.074 R)
• M22: 26,817,513 km (0.035 R)
• M23: 27,041,461 km (0.108 R)
• M24: 30,553,271 km (0.108 R)
• M25: 31,166,622 km (0.104 R)
• M26: 31,538,522 km (0.104 R)
• M27: 33,963,205 km (0.088 R)
• M28: 35,020,263 km (0.096 R)
• M29: 35,963,029 km (0.097 R)
• M30: 42,128,107 km (0.104 R)
• M31: 42,279,201 km (0.037 R)
• M32: 44,747,715 km (0.106 R)
• M33: 45,062,918 km (0.068 R)
• M34: 51,335,706 km (0.104 R)
• M35: 56,680,389 km (0.058 R)
• M36: 57,234,350 km (0.076 R)
• M37: 62,187,984 km (0.117 R)
• M38: 66,801,433 km (0.105 R)
• M39: 67,213,127 km (0.08 R)
• M40: 70,780,587 km (0.117 R)
• M41: 70,994,362 km (0.109 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 254 - 11,240 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit