🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.43 AU - 0.71 AU

Year: 282 Days

Day: 33.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 111.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,223,225 km

• M1: 221,255 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359

Radius: 14.8

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.7 AU - 1.02 AU

Year: 523 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,223,225 km

• M1: 184,005 km (0.096 R)
• M2: 666,309 km (0.04 R)
• M3: 1,161,328 km (0.113 R)
• M4: 1,644,829 km (0.11 R)
• M5: 2,157,650 km (0.118 R)
• M6: 3,334,686 km (0.069 R)
• M7: 3,965,540 km (0.098 R)
• M8: 4,535,209 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.5

Radius: 8.4

Gravity: 13.74 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.91 AU - 0.91 AU

Year: 569 Days

Day: 13.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,223,225 km

• M1: 104,419 km (0.111 R)
• M2: 424,409 km (0.066 R)
• M3: 797,207 km (0.119 R)
• M4: 1,294,770 km (0.111 R)
• M5: 1,996,234 km (0.089 R)
• M6: 2,263,416 km (0.045 R)
• M7: 2,587,295 km (0.087 R)
• M8: 3,026,515 km (0.103 R)
• M9: 3,329,001 km (0.03 R)
• M10: 3,596,482 km (0.075 R)
• M11: 3,951,029 km (0.096 R)
• M12: 4,297,797 km (0.109 R)
• M13: 4,730,733 km (0.112 R)
• M14: 5,646,572 km (0.117 R)
• M15: 6,823,308 km (0.087 R)
• M16: 7,413,322 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.3

Radius: 13.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.21 AU - 1.99 AU

Year: 1328 Days

Day: 5.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,223,225 km

• M1: 170,392 km (0.071 R)
• M2: 1,033,871 km (0.054 R)
• M3: 1,747,453 km (0.072 R)
• M4: 2,520,874 km (0.058 R)
• M5: 3,017,688 km (0.064 R)
• M6: 6,278,922 km (0.115 R)
• M7: 6,983,528 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.3

Radius: 8.9

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.92 AU - 6.76 AU

Year: 9258 Days

Day: 5.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,223,225 km

• M1: 111,151 km (0.115 R)
• M2: 480,359 km (0.119 R)
• M3: 1,527,993 km (0.115 R)
• M4: 2,690,817 km (0.097 R)
• M5: 3,913,032 km (0.104 R)
• M6: 7,157,809 km (0.087 R)
• M7: 7,714,014 km (0.099 R)
• M8: 8,061,231 km (0.118 R)
• M9: 14,476,287 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 320.7

Radius: 6.7

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5.45 AU - 7.07 AU

Year: 10275 Days

Day: 21.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,223,225 km

• M1: 84,822 km (0.052 R)
• M2: 350,957 km (0.092 R)
• M3: 725,250 km (0.04 R)
• M4: 949,498 km (0.112 R)
• M5: 1,310,926 km (0.096 R)
• M6: 1,609,224 km (0.077 R)
• M7: 1,952,551 km (0.039 R)
• M8: 2,727,917 km (0.051 R)
• M9: 3,069,000 km (0.108 R)
• M10: 3,621,914 km (0.117 R)
• M11: 4,344,173 km (0.118 R)
• M12: 4,697,672 km (0.106 R)
• M13: 8,751,176 km (0.08 R)
• M14: 19,012,094 km (0.046 R)
• M15: 20,254,205 km (0.051 R)
• M16: 26,294,818 km (0.082 R)
• M17: 26,831,425 km (0.065 R)
• M18: 30,206,503 km (0.063 R)
• M19: 30,499,864 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595.8

Radius: 5.8

Gravity: 17.71 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.48 AU - 10.66 AU

Year: 19421 Days

Day: 19.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,223,225 km

• M1: 72,106 km (0.097 R)
• M2: 321,935 km (0.083 R)
• M3: 560,094 km (0.091 R)
• M4: 769,382 km (0.091 R)
• M5: 1,157,439 km (0.069 R)
• M6: 1,488,200 km (0.1 R)
• M7: 2,360,206 km (0.106 R)
• M8: 2,629,033 km (0.091 R)
• M9: 3,309,404 km (0.119 R)
• M10: 4,038,245 km (0.113 R)
• M11: 4,325,323 km (0.112 R)
• M12: 5,650,611 km (0.086 R)
• M13: 6,216,091 km (0.116 R)
• M14: 8,089,355 km (0.096 R)
• M15: 8,597,689 km (0.12 R)
• M16: 9,847,429 km (0.117 R)
• M17: 10,367,880 km (0.099 R)
• M18: 12,104,712 km (0.079 R)
• M19: 14,909,073 km (0.061 R)
• M20: 15,287,556 km (0.117 R)
• M21: 16,222,094 km (0.111 R)
• M22: 18,811,483 km (0.107 R)
• M23: 19,702,339 km (0.091 R)
• M24: 22,247,447 km (0.105 R)
• M25: 22,642,236 km (0.049 R)
• M26: 24,686,790 km (0.06 R)
• M27: 25,216,516 km (0.079 R)
• M28: 26,298,558 km (0.101 R)
• M29: 27,074,223 km (0.076 R)
• M30: 34,490,537 km (0.119 R)
• M31: 36,229,014 km (0.101 R)
• M32: 36,501,432 km (0.053 R)
• M33: 40,755,397 km (0.059 R)
• M34: 45,486,280 km (0.117 R)
• M35: 46,603,028 km (0.092 R)
• M36: 47,901,388 km (0.09 R)
• M37: 55,296,160 km (0.099 R)
• M38: 69,529,201 km (0.083 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 12,681 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit