🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.23 AU - 1.57 AU

Year: 739 Days

Day: 25.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,014,601 km

• M1: 34,557 km (0.089 R)
• M2: 363,672 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.44 AU - 2.04 AU

Year: 1024 Days

Day: 39.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,014,601 km

• M1: 62,532 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.93 AU - 2.19 AU

Year: 1319 Days

Day: 29.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.64 AU - 2.66 AU

Year: 1407 Days

Day: 26.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2 AU - 2.7 AU

Year: 1608 Days

Day: 31.7 Hours

Environment

Temp: -133 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.4

Radius: 10.5

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.37 AU - 3.25 AU

Year: 2102 Days

Day: 12.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,014,601 km

• M1: 130,599 km (0.092 R)
• M2: 522,695 km (0.071 R)
• M3: 942,018 km (0.1 R)
• M4: 1,469,201 km (0.08 R)
• M5: 1,887,626 km (0.104 R)
• M6: 2,237,386 km (0.117 R)
• M7: 2,700,840 km (0.031 R)
• M8: 3,122,108 km (0.099 R)
• M9: 3,515,999 km (0.114 R)
• M10: 4,778,455 km (0.076 R)
• M11: 5,303,843 km (0.078 R)
• M12: 7,183,241 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.8

Radius: 9.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.7 AU - 3.2 AU

Year: 2261 Days

Day: 9.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,014,601 km

• M1: 118,182 km (0.073 R)
• M2: 832,063 km (0.1 R)
• M3: 1,129,015 km (0.074 R)
• M4: 1,688,511 km (0.105 R)
• M5: 2,273,588 km (0.119 R)
• M6: 2,688,872 km (0.118 R)
• M7: 2,988,517 km (0.074 R)
• M8: 3,455,561 km (0.106 R)
• M9: 4,615,992 km (0.044 R)
• M10: 7,378,915 km (0.09 R)
• M11: 9,772,182 km (0.106 R)
• M12: 10,210,503 km (0.095 R)
• M13: 12,601,526 km (0.1 R)
• M14: 14,245,756 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.3

Radius: 12.3

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 6.56 AU - 8.04 AU

Year: 8801 Days

Day: 13.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,014,601 km

• M1: 154,535 km (0.097 R)
• M2: 1,014,573 km (0.072 R)
• M3: 1,451,847 km (0.102 R)
• M4: 3,425,193 km (0.091 R)
• M5: 4,160,167 km (0.115 R)
• M6: 5,773,281 km (0.109 R)
• M7: 6,225,964 km (0.077 R)
• M8: 6,702,284 km (0.057 R)
• M9: 7,687,087 km (0.087 R)
• M10: 9,271,627 km (0.116 R)
• M11: 9,992,539 km (0.112 R)
• M12: 11,655,170 km (0.113 R)
• M13: 16,126,950 km (0.088 R)
• M14: 17,455,528 km (0.036 R)
• M15: 19,007,457 km (0.105 R)
• M16: 22,130,611 km (0.119 R)
• M17: 24,303,670 km (0.083 R)
• M18: 26,330,572 km (0.096 R)
• M19: 29,476,465 km (0.114 R)
• M20: 32,755,351 km (0.105 R)
• M21: 35,686,722 km (0.112 R)
• M22: 40,153,714 km (0.052 R)
• M23: 43,242,611 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 319.5

Radius: 3.2

Gravity: 31.2 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.7 AU - 10 AU

Year: 13795 Days

Day: 21.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 58,014,601 km

• M1: 40,391 km (0.113 R)
• M2: 153,039 km (0.075 R)
• M3: 290,669 km (0.036 R)
• M4: 543,339 km (0.116 R)
• M5: 758,910 km (0.059 R)
• M6: 935,735 km (0.057 R)
• M7: 1,245,552 km (0.064 R)
• M8: 2,296,327 km (0.073 R)
• M9: 3,074,685 km (0.113 R)
• M10: 3,353,236 km (0.085 R)
• M11: 4,233,769 km (0.112 R)
• M12: 5,554,569 km (0.085 R)
• M13: 5,792,878 km (0.08 R)
• M14: 6,399,797 km (0.114 R)
• M15: 7,246,820 km (0.081 R)
• M16: 8,743,996 km (0.086 R)
• M17: 9,112,904 km (0.119 R)
• M18: 9,444,263 km (0.119 R)
• M19: 10,030,836 km (0.077 R)
• M20: 12,332,549 km (0.101 R)
• M21: 13,452,888 km (0.073 R)
• M22: 13,944,317 km (0.083 R)
• M23: 16,373,637 km (0.114 R)
• M24: 16,582,176 km (0.105 R)
• M25: 19,612,131 km (0.054 R)
• M26: 21,051,562 km (0.119 R)
• M27: 23,165,230 km (0.049 R)
• M28: 31,511,295 km (0.115 R)
• M29: 32,158,755 km (0.066 R)
• M30: 33,257,252 km (0.079 R)
• M31: 35,066,788 km (0.069 R)
• M32: 35,413,107 km (0.117 R)
• M33: 35,529,045 km (0.114 R)
• M34: 35,995,492 km (0.067 R)
• M35: 37,299,387 km (0.117 R)
• M36: 38,023,590 km (0.053 R)
• M37: 38,880,337 km (0.074 R)
• M38: 39,749,800 km (0.101 R)
• M39: 44,427,276 km (0.06 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.2

Radius: 3.8

Gravity: 30.97 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 10.11 AU - 12.07 AU

Year: 16480 Days

Day: 18.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,014,601 km

• M1: 47,423 km (0.083 R)
• M2: 216,767 km (0.054 R)
• M3: 402,568 km (0.113 R)
• M4: 656,136 km (0.098 R)
• M5: 952,938 km (0.112 R)
• M6: 1,252,733 km (0.097 R)
• M7: 1,612,366 km (0.097 R)
• M8: 2,553,935 km (0.103 R)
• M9: 3,228,023 km (0.079 R)
• M10: 3,647,046 km (0.054 R)
• M11: 4,160,466 km (0.104 R)
• M12: 4,851,758 km (0.114 R)
• M13: 5,652,855 km (0.076 R)
• M14: 10,838,964 km (0.08 R)
• M15: 11,474,755 km (0.1 R)
• M16: 12,196,266 km (0.112 R)
• M17: 12,756,958 km (0.111 R)
• M18: 15,385,991 km (0.094 R)
• M19: 17,795,864 km (0.099 R)
• M20: 17,954,288 km (0.111 R)
• M21: 19,007,307 km (0.116 R)
• M22: 19,256,088 km (0.115 R)
• M23: 22,970,304 km (0.067 R)
• M24: 25,393,191 km (0.079 R)
• M25: 26,203,114 km (0.045 R)
• M26: 26,614,508 km (0.111 R)
• M27: 26,821,851 km (0.032 R)
• M28: 27,134,660 km (0.068 R)
• M29: 31,196,990 km (0.099 R)
• M30: 31,427,521 km (0.045 R)
• M31: 32,125,694 km (0.096 R)
• M32: 32,953,269 km (0.118 R)
• M33: 34,897,892 km (0.047 R)
• M34: 40,363,899 km (0.106 R)
• M35: 46,523,442 km (0.075 R)
• M36: 54,940,416 km (0.111 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: 196 - 18,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit