🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.84 AU - 0.98 AU

Year: 329 Days

Day: 32.9 Hours

Environment

Temp: 41 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.09 AU - 1.21 AU

Year: 467 Days

Day: 12.9 Hours

Environment

Temp: 9 °C

Axial Tilt: 41.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.2 AU - 1.26 AU

Year: 517 Days

Day: 47.3 Hours

Environment

Temp: -23 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.02 AU - 3.24 AU

Year: 2097 Days

Day: 17.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.7

Radius: 8.7

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.68 AU - 7 AU

Year: 5345 Days

Day: 7.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,227,780 km

• M1: 108,309 km (0.11 R)
• M2: 646,562 km (0.082 R)
• M3: 1,104,331 km (0.118 R)
• M4: 1,399,039 km (0.043 R)
• M5: 3,529,463 km (0.119 R)
• M6: 4,296,600 km (0.084 R)
• M7: 5,372,508 km (0.035 R)
• M8: 7,156,313 km (0.086 R)
• M9: 12,239,799 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.4

Radius: 15

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.67 AU - 7.15 AU

Year: 5442 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 16,227,780 km

• M1: 186,549 km (0.061 R)
• M2: 787,034 km (0.106 R)
• M3: 1,713,494 km (0.049 R)
• M4: 2,183,531 km (0.059 R)
• M5: 4,963,657 km (0.111 R)
• M6: 5,450,898 km (0.036 R)
• M7: 6,428,221 km (0.105 R)
• M8: 7,142,850 km (0.091 R)
• M9: 8,018,745 km (0.086 R)
• M10: 9,526,991 km (0.11 R)
• M11: 10,810,690 km (0.077 R)
• M12: 11,776,045 km (0.105 R)
• M13: 12,598,983 km (0.055 R)
• M14: 17,424,562 km (0.055 R)
• M15: 18,558,065 km (0.093 R)
• M16: 21,821,093 km (0.071 R)
• M17: 23,663,990 km (0.099 R)
• M18: 24,740,346 km (0.056 R)
• M19: 25,290,567 km (0.112 R)
• M20: 27,573,880 km (0.086 R)
• M21: 28,165,539 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.2

Radius: 14.2

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 6.22 AU - 6.44 AU

Year: 6032 Days

Day: 5.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 146.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 16,227,780 km

• M1: 176,675 km (0.103 R)
• M2: 653,593 km (0.061 R)
• M3: 1,198,877 km (0.075 R)
• M4: 1,840,353 km (0.115 R)
• M5: 2,346,891 km (0.089 R)
• M6: 3,922,307 km (0.113 R)
• M7: 4,537,154 km (0.084 R)
• M8: 5,715,686 km (0.119 R)
• M9: 6,377,208 km (0.103 R)
• M10: 7,483,334 km (0.109 R)
• M11: 9,809,432 km (0.079 R)
• M12: 10,299,813 km (0.07 R)
• M13: 10,947,871 km (0.078 R)
• M14: 11,970,672 km (0.07 R)
• M15: 12,791,964 km (0.117 R)
• M16: 13,270,378 km (0.107 R)
• M17: 15,723,185 km (0.05 R)
• M18: 16,272,508 km (0.088 R)
• M19: 19,352,729 km (0.111 R)
• M20: 20,629,098 km (0.066 R)
• M21: 25,042,384 km (0.059 R)
• M22: 28,762,135 km (0.087 R)
• M23: 30,329,323 km (0.098 R)
• M24: 31,855,819 km (0.056 R)
• M25: 33,533,260 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.1

Radius: 12.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.91 AU - 8.85 AU

Year: 7593 Days

Day: 14.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,227,780 km

• M1: 154,235 km (0.097 R)
• M2: 614,698 km (0.116 R)
• M3: 1,029,233 km (0.119 R)
• M4: 2,236,638 km (0.082 R)
• M5: 2,843,108 km (0.11 R)
• M6: 4,135,184 km (0.082 R)
• M7: 5,573,418 km (0.063 R)
• M8: 7,435,313 km (0.046 R)
• M9: 8,049,113 km (0.114 R)
• M10: 8,445,697 km (0.097 R)
• M11: 9,245,597 km (0.118 R)
• M12: 11,562,120 km (0.11 R)
• M13: 13,419,677 km (0.096 R)
• M14: 14,110,071 km (0.114 R)
• M15: 16,083,566 km (0.109 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 11,043 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit