🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.61 AU - 0.81 AU

Year: 224 Days

Day: 39.3 Hours

Environment

Temp: 107 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 92,639,664 km

• M1: 14,212 km (0.058 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.63 AU - 0.87 AU

Year: 243 Days

Day: 20.1 Hours

Environment

Temp: 179 °C

Axial Tilt: 49.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 92,639,664 km

• M1: 122,969 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.73 AU - 1.17 AU

Year: 347 Days

Day: 20.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 11.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 92,639,664 km

• M1: 42,785 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1 AU - 1.34 AU

Year: 474 Days

Day: 26.7 Hours

Environment

Temp: 10 °C

Axial Tilt: 29.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 92,639,664 km

• M1: 690,095 km (0.098 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.01 AU - 3.15 AU

Year: 2026 Days

Day: 29.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837

Radius: 12

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.55 AU - 7.39 AU

Year: 6896 Days

Day: 13.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,639,664 km

• M1: 149,299 km (0.109 R)
• M2: 545,284 km (0.046 R)
• M3: 951,143 km (0.091 R)
• M4: 1,347,877 km (0.118 R)
• M5: 1,901,987 km (0.094 R)
• M6: 2,816,030 km (0.115 R)
• M7: 4,366,163 km (0.041 R)
• M8: 5,070,769 km (0.12 R)
• M9: 6,851,582 km (0.118 R)
• M10: 9,418,233 km (0.115 R)
• M11: 13,700,323 km (0.092 R)
• M12: 16,231,219 km (0.105 R)
• M13: 16,759,150 km (0.114 R)
• M14: 18,769,746 km (0.088 R)
• M15: 19,945,435 km (0.061 R)
• M16: 24,448,630 km (0.105 R)
• M17: 26,208,649 km (0.106 R)
• M18: 27,676,504 km (0.108 R)
• M19: 31,994,945 km (0.071 R)
• M20: 37,999,355 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.4

Radius: 10.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 8.06 AU - 10.28 AU

Year: 10406 Days

Day: 7.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 92,639,664 km

• M1: 132,095 km (0.107 R)
• M2: 531,970 km (0.069 R)
• M3: 881,281 km (0.108 R)
• M4: 1,232,088 km (0.104 R)
• M5: 1,973,196 km (0.109 R)
• M6: 3,285,319 km (0.087 R)
• M7: 4,525,784 km (0.098 R)
• M8: 6,570,937 km (0.091 R)
• M9: 6,957,199 km (0.069 R)
• M10: 7,946,639 km (0.096 R)
• M11: 9,602,987 km (0.077 R)
• M12: 10,101,447 km (0.03 R)
• M13: 10,512,392 km (0.111 R)
• M14: 12,856,890 km (0.106 R)
• M15: 13,961,072 km (0.038 R)
• M16: 14,471,649 km (0.106 R)
• M17: 17,213,629 km (0.092 R)
• M18: 19,015,685 km (0.071 R)
• M19: 19,962,190 km (0.074 R)
• M20: 20,528,867 km (0.098 R)
• M21: 21,440,666 km (0.104 R)
• M22: 22,727,507 km (0.105 R)
• M23: 25,360,130 km (0.111 R)
• M24: 28,800,432 km (0.102 R)
• M25: 31,658,201 km (0.115 R)
• M26: 32,207,374 km (0.054 R)
• M27: 33,665,206 km (0.102 R)
• M28: 41,227,228 km (0.051 R)
• M29: 43,618,102 km (0.109 R)
• M30: 45,262,332 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 653.7

Radius: 5.1

Gravity: 25.13 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 13.24 AU - 21.82 AU

Year: 27504 Days

Day: 20.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 92,639,664 km

• M1: 63,429 km (0.113 R)
• M2: 223,350 km (0.046 R)
• M3: 486,941 km (0.105 R)
• M4: 771,177 km (0.097 R)
• M5: 1,544,897 km (0.113 R)
• M6: 2,638,757 km (0.104 R)
• M7: 2,929,575 km (0.096 R)
• M8: 5,639,840 km (0.076 R)
• M9: 5,943,972 km (0.093 R)
• M10: 6,728,164 km (0.106 R)
• M11: 7,020,628 km (0.078 R)
• M12: 8,276,502 km (0.115 R)
• M13: 8,783,789 km (0.077 R)
• M14: 9,311,570 km (0.104 R)
• M15: 11,566,159 km (0.061 R)
• M16: 12,488,729 km (0.077 R)
• M17: 18,788,146 km (0.108 R)
• M18: 20,361,317 km (0.087 R)
• M19: 25,840,788 km (0.102 R)
• M20: 27,906,884 km (0.032 R)
• M21: 28,661,755 km (0.105 R)
• M22: 29,300,987 km (0.102 R)
• M23: 30,343,535 km (0.075 R)
• M24: 31,141,490 km (0.102 R)
• M25: 32,918,263 km (0.103 R)
• M26: 36,077,172 km (0.11 R)
• M27: 50,548,821 km (0.108 R)
• M28: 57,926,091 km (0.116 R)
• M29: 59,772,577 km (0.07 R)
• M30: 65,767,712 km (0.089 R)
• M31: 71,215,169 km (0.112 R)
• M32: 71,682,363 km (0.067 R)
• M33: 84,294,211 km (0.11 R)
• M34: 86,397,707 km (0.108 R)
• M35: 87,730,026 km (0.103 R)
• M36: 87,998,105 km (0.081 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 17,602 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit