🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.99 AU - 1.05 AU

Year: 443 Days

Day: 30.7 Hours

Environment

Temp: -63 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.36 AU - 1.62 AU

Year: 783 Days

Day: 41.6 Hours

Environment

Temp: -94 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,292,706 km

• M1: 47,722 km (0.112 R)
• M2: 1,089,072 km (0.1 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.53 AU - 2.27 AU

Year: 1127 Days

Day: 24.5 Hours

Environment

Temp: -110 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 10.9

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.84 AU - 3.2 AU

Year: 2259 Days

Day: 6.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,292,706 km

• M1: 137,630 km (0.115 R)
• M2: 493,823 km (0.072 R)
• M3: 848,519 km (0.1 R)
• M4: 1,253,331 km (0.118 R)
• M5: 1,655,450 km (0.092 R)
• M6: 2,057,569 km (0.118 R)
• M7: 2,727,169 km (0.114 R)
• M8: 3,495,055 km (0.069 R)
• M9: 4,337,740 km (0.059 R)
• M10: 5,237,721 km (0.064 R)
• M11: 7,045,461 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 13.2

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 4.11 AU - 4.37 AU

Year: 3758 Days

Day: 13.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,292,706 km

• M1: 164,109 km (0.116 R)
• M2: 602,431 km (0.038 R)
• M3: 1,059,901 km (0.085 R)
• M4: 1,637,797 km (0.117 R)
• M5: 2,553,336 km (0.076 R)
• M6: 3,161,452 km (0.109 R)
• M7: 3,904,654 km (0.082 R)
• M8: 4,625,417 km (0.028 R)
• M9: 5,089,768 km (0.038 R)
• M10: 5,508,942 km (0.087 R)
• M11: 7,770,113 km (0.095 R)
• M12: 11,075,179 km (0.086 R)
• M13: 11,529,657 km (0.084 R)
• M14: 12,388,200 km (0.081 R)
• M15: 13,755,375 km (0.102 R)
• M16: 18,517,972 km (0.068 R)
• M17: 19,041,864 km (0.089 R)
• M18: 20,487,129 km (0.038 R)
• M19: 20,922,160 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.3

Radius: 10.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.55 AU - 5.55 AU

Year: 4178 Days

Day: 8.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,292,706 km

• M1: 127,906 km (0.083 R)
• M2: 581,188 km (0.084 R)
• M3: 1,244,505 km (0.104 R)
• M4: 1,607,130 km (0.088 R)
• M5: 2,093,622 km (0.118 R)
• M6: 2,660,449 km (0.114 R)
• M7: 2,989,265 km (0.044 R)
• M8: 4,122,319 km (0.083 R)
• M9: 4,966,350 km (0.04 R)
• M10: 5,365,477 km (0.116 R)
• M11: 6,031,936 km (0.098 R)
• M12: 6,903,493 km (0.041 R)
• M13: 7,337,925 km (0.084 R)
• M14: 7,724,785 km (0.076 R)
• M15: 8,574,800 km (0.073 R)
• M16: 10,180,733 km (0.115 R)
• M17: 11,456,803 km (0.091 R)
• M18: 12,066,863 km (0.105 R)
• M19: 12,561,135 km (0.075 R)
• M20: 14,473,744 km (0.086 R)
• M21: 14,827,243 km (0.109 R)
• M22: 15,186,727 km (0.115 R)
• M23: 16,137,721 km (0.104 R)
• M24: 17,240,257 km (0.04 R)
• M25: 17,983,459 km (0.068 R)
• M26: 18,747,904 km (0.055 R)
• M27: 20,785,577 km (0.036 R)
• M28: 22,626,828 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.2

Radius: 8.6

Gravity: 12.39 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 7.52 AU - 9.22 AU

Year: 10423 Days

Day: 5.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,292,706 km

• M1: 106,962 km (0.113 R)
• M2: 449,990 km (0.098 R)
• M3: 724,203 km (0.041 R)
• M4: 1,387,969 km (0.1 R)
• M5: 1,768,546 km (0.112 R)
• M6: 2,255,487 km (0.072 R)
• M7: 2,851,635 km (0.101 R)
• M8: 4,092,848 km (0.083 R)
• M9: 7,379,663 km (0.116 R)
• M10: 8,219,655 km (0.116 R)
• M11: 9,984,162 km (0.053 R)
• M12: 12,772,666 km (0.107 R)
• M13: 15,194,656 km (0.073 R)
• M14: 18,218,777 km (0.081 R)
• M15: 19,913,272 km (0.085 R)
• M16: 20,585,565 km (0.104 R)
• M17: 22,602,742 km (0.096 R)
• M18: 23,058,118 km (0.116 R)
• M19: 25,134,836 km (0.1 R)
• M20: 33,619,279 km (0.087 R)
• M21: 35,055,269 km (0.027 R)
• M22: 35,911,567 km (0.068 R)
• M23: 41,074,489 km (0.036 R)
• M24: 45,834,843 km (0.057 R)
• M25: 53,323,263 km (0.099 R)
• M26: 53,806,465 km (0.091 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 19,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit