🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.47 AU - 0.61 AU

Year: 252 Days

Day: 12.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.6

Radius: 14.5

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.9 AU - 1.12 AU

Year: 645 Days

Day: 6.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,378,439 km

• M1: 180,415 km (0.113 R)
• M2: 723,306 km (0.049 R)
• M3: 1,223,860 km (0.058 R)
• M4: 1,814,323 km (0.099 R)
• M5: 2,922,544 km (0.115 R)
• M6: 3,498,047 km (0.092 R)
• M7: 4,148,798 km (0.091 R)
• M8: 4,672,091 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.5

Radius: 11.1

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.29 AU - 1.85 AU

Year: 1251 Days

Day: 10 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,378,439 km

• M1: 138,079 km (0.077 R)
• M2: 567,275 km (0.077 R)
• M3: 1,086,679 km (0.082 R)
• M4: 1,692,999 km (0.105 R)
• M5: 2,324,452 km (0.084 R)
• M6: 3,305,664 km (0.114 R)
• M7: 3,668,140 km (0.104 R)
• M8: 4,657,131 km (0.114 R)
• M9: 5,129,861 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.3

Radius: 10

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.25 AU - 1.91 AU

Year: 1263 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 37,378,439 km

• M1: 127,308 km (0.038 R)
• M2: 441,015 km (0.119 R)
• M3: 767,587 km (0.098 R)
• M4: 1,103,434 km (0.063 R)
• M5: 1,512,734 km (0.038 R)
• M6: 2,403,888 km (0.087 R)
• M7: 2,860,311 km (0.086 R)
• M8: 3,436,413 km (0.097 R)
• M9: 3,930,834 km (0.096 R)
• M10: 4,490,928 km (0.082 R)
• M11: 5,312,669 km (0.103 R)
• M12: 5,659,437 km (0.1 R)
• M13: 6,044,502 km (0.12 R)
• M14: 6,519,774 km (0.045 R)
• M15: 6,917,854 km (0.102 R)
• M16: 7,384,899 km (0.092 R)
• M17: 9,657,141 km (0.091 R)
• M18: 9,978,926 km (0.112 R)
• M19: 10,987,066 km (0.115 R)
• M20: 11,587,851 km (0.091 R)
• M21: 12,024,976 km (0.09 R)
• M22: 12,359,926 km (0.106 R)
• M23: 12,854,945 km (0.077 R)
• M24: 13,205,303 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.5

Radius: 12

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.14 AU - 2.4 AU

Year: 2175 Days

Day: 13.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,378,439 km

• M1: 149,299 km (0.09 R)
• M2: 654,191 km (0.063 R)
• M3: 1,276,519 km (0.1 R)
• M4: 1,962,724 km (0.079 R)
• M5: 2,364,394 km (0.036 R)
• M6: 3,320,325 km (0.064 R)
• M7: 4,249,477 km (0.113 R)
• M8: 5,043,243 km (0.106 R)
• M9: 6,243,467 km (0.104 R)
• M10: 6,646,633 km (0.109 R)
• M11: 9,443,964 km (0.106 R)
• M12: 10,085,440 km (0.094 R)
• M13: 11,024,615 km (0.107 R)
• M14: 11,535,641 km (0.104 R)
• M15: 15,420,698 km (0.107 R)
• M16: 16,975,170 km (0.06 R)
• M17: 17,445,356 km (0.051 R)

Asteroid Belt

Center: 3.81 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.8

Radius: 8.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.28 AU - 6.42 AU

Year: 7868 Days

Day: 6.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 37,378,439 km

• M1: 111,450 km (0.12 R)
• M2: 434,582 km (0.103 R)
• M3: 818,001 km (0.109 R)
• M4: 1,127,220 km (0.117 R)
• M5: 1,574,368 km (0.093 R)
• M6: 2,367,835 km (0.104 R)
• M7: 2,899,955 km (0.096 R)
• M8: 4,038,544 km (0.061 R)
• M9: 4,773,369 km (0.092 R)
• M10: 6,130,521 km (0.088 R)
• M11: 7,065,807 km (0.102 R)
• M12: 8,897,483 km (0.11 R)
• M13: 9,176,932 km (0.109 R)
• M14: 9,462,365 km (0.116 R)
• M15: 10,354,566 km (0.114 R)
• M16: 11,964,389 km (0.062 R)
• M17: 12,403,907 km (0.096 R)
• M18: 13,628,964 km (0.094 R)
• M19: 16,081,322 km (0.079 R)
• M20: 16,556,894 km (0.105 R)
• M21: 17,164,411 km (0.061 R)
• M22: 18,488,651 km (0.055 R)
• M23: 20,152,329 km (0.113 R)
• M24: 21,769,033 km (0.049 R)
• M25: 24,005,222 km (0.082 R)
• M26: 25,820,293 km (0.064 R)
• M27: 27,052,232 km (0.112 R)
• M28: 27,980,187 km (0.059 R)
• M29: 29,721,507 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.7

Radius: 5

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.97 AU - 8.05 AU

Year: 13086 Days

Day: 15.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 37,378,439 km

• M1: 62,233 km (0.103 R)
• M2: 298,448 km (0.092 R)
• M3: 804,837 km (0.115 R)
• M4: 1,039,855 km (0.091 R)
• M5: 1,465,162 km (0.076 R)
• M6: 1,745,807 km (0.048 R)
• M7: 1,983,219 km (0.068 R)
• M8: 2,414,809 km (0.113 R)
• M9: 3,350,544 km (0.027 R)
• M10: 3,911,835 km (0.099 R)
• M11: 4,925,360 km (0.097 R)
• M12: 5,339,447 km (0.118 R)
• M13: 8,122,566 km (0.11 R)
• M14: 9,482,111 km (0.115 R)
• M15: 10,548,445 km (0.066 R)
• M16: 12,589,409 km (0.072 R)
• M17: 13,137,835 km (0.104 R)
• M18: 14,165,273 km (0.109 R)
• M19: 14,879,154 km (0.05 R)
• M20: 15,994,705 km (0.075 R)
• M21: 17,702,664 km (0.047 R)
• M22: 18,671,011 km (0.033 R)
• M23: 19,383,845 km (0.061 R)
• M24: 20,863,817 km (0.11 R)
• M25: 22,258,817 km (0.095 R)
• M26: 24,381,760 km (0.106 R)
• M27: 27,905,388 km (0.099 R)
• M28: 28,275,494 km (0.096 R)
• M29: 29,405,107 km (0.088 R)
• M30: 31,354,218 km (0.035 R)
• M31: 32,360,263 km (0.037 R)
• M32: 32,871,290 km (0.071 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 10,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit