🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.6 AU

Year: 166 Days

Day: 30.4 Hours

Environment

Temp: 126 °C

Axial Tilt: 7.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.59 AU - 0.75 AU

Year: 236 Days

Day: 15.9 Hours

Environment

Temp: -8 °C

Axial Tilt: 48.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.83 AU - 1.21 AU

Year: 443 Days

Day: 31.2 Hours

Environment

Temp: -48 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.41 AU - 1.51 AU

Year: 759 Days

Day: 41.6 Hours

Environment

Temp: -84 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,832,161 km

• M1: 517,459 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.4

Radius: 11.9

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.7 AU - 4.82 AU

Year: 4470 Days

Day: 12 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,832,161 km

• M1: 159,172 km (0.107 R)
• M2: 1,102,836 km (0.074 R)
• M3: 2,491,553 km (0.118 R)
• M4: 3,865,908 km (0.075 R)
• M5: 5,780,462 km (0.109 R)
• M6: 6,198,289 km (0.111 R)
• M7: 8,561,187 km (0.057 R)
• M8: 12,870,503 km (0.11 R)
• M9: 13,953,143 km (0.03 R)
• M10: 14,928,521 km (0.103 R)
• M11: 15,660,803 km (0.111 R)
• M12: 17,075,550 km (0.053 R)
• M13: 18,191,400 km (0.11 R)
• M14: 20,225,931 km (0.036 R)
• M15: 22,045,939 km (0.112 R)
• M16: 24,432,773 km (0.105 R)
• M17: 26,413,748 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 13.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.41 AU - 6.17 AU

Year: 5237 Days

Day: 6 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,832,161 km

• M1: 165,455 km (0.08 R)
• M2: 603,328 km (0.092 R)
• M3: 1,164,619 km (0.066 R)
• M4: 1,937,292 km (0.104 R)
• M5: 3,763,882 km (0.105 R)
• M6: 4,351,353 km (0.12 R)
• M7: 4,975,924 km (0.094 R)
• M8: 7,868,250 km (0.085 R)
• M9: 10,367,581 km (0.043 R)
• M10: 12,550,065 km (0.097 R)
• M11: 14,197,287 km (0.047 R)
• M12: 14,826,196 km (0.11 R)
• M13: 16,932,235 km (0.083 R)
• M14: 17,750,386 km (0.119 R)
• M15: 19,348,091 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.3

Radius: 9.2

Gravity: 11.27 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.37 AU - 10.55 AU

Year: 10592 Days

Day: 13 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 32,832,161 km

• M1: 203,304 km (0.115 R)
• M2: 628,461 km (0.088 R)
• M3: 1,045,689 km (0.066 R)
• M4: 1,468,303 km (0.086 R)
• M5: 1,933,403 km (0.085 R)
• M6: 2,926,284 km (0.106 R)
• M7: 3,356,976 km (0.053 R)
• M8: 3,802,179 km (0.042 R)
• M9: 4,405,956 km (0.107 R)
• M10: 4,908,007 km (0.06 R)
• M11: 5,768,195 km (0.062 R)
• M12: 7,306,360 km (0.107 R)
• M13: 8,239,402 km (0.102 R)
• M14: 8,615,042 km (0.097 R)
• M15: 9,863,287 km (0.115 R)
• M16: 15,429,973 km (0.096 R)
• M17: 19,401,049 km (0.082 R)
• M18: 22,427,563 km (0.119 R)
• M19: 23,440,191 km (0.082 R)
• M20: 24,483,038 km (0.097 R)
• M21: 25,064,824 km (0.118 R)
• M22: 26,155,093 km (0.083 R)
• M23: 26,661,183 km (0.063 R)
• M24: 27,588,241 km (0.117 R)
• M25: 31,855,670 km (0.092 R)
• M26: 32,432,818 km (0.101 R)
• M27: 34,447,154 km (0.086 R)
• M28: 41,124,903 km (0.078 R)
• M29: 42,085,023 km (0.099 R)
• M30: 48,464,923 km (0.067 R)
• M31: 49,074,983 km (0.059 R)
• M32: 51,408,560 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.4

Radius: 13.5

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.06 AU - 9.64 AU

Year: 11333 Days

Day: 5.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,832,161 km

• M1: 167,998 km (0.083 R)
• M2: 862,133 km (0.117 R)
• M3: 1,429,258 km (0.112 R)
• M4: 2,519,378 km (0.105 R)
• M5: 3,848,405 km (0.105 R)
• M6: 6,059,312 km (0.055 R)
• M7: 7,223,333 km (0.114 R)
• M8: 7,692,023 km (0.047 R)
• M9: 9,346,875 km (0.094 R)
• M10: 10,393,312 km (0.099 R)
• M11: 14,791,639 km (0.116 R)
• M12: 15,788,260 km (0.111 R)
• M13: 19,116,214 km (0.089 R)
• M14: 21,826,030 km (0.087 R)
• M15: 23,821,815 km (0.116 R)
• M16: 26,696,638 km (0.076 R)
• M17: 27,125,535 km (0.085 R)
• M18: 28,261,880 km (0.078 R)
• M19: 31,766,061 km (0.041 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 12,186 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit