🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.66 AU - 0.7 AU

Year: 212 Days

Day: 18.1 Hours

Environment

Temp: 146 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,325,969 km

• M1: 401,969 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.78 AU - 0.94 AU

Year: 302 Days

Day: 12.4 Hours

Environment

Temp: 36 °C

Axial Tilt: 21.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.06 AU - 1.4 AU

Year: 517 Days

Day: 22.2 Hours

Environment

Temp: -33 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.41 AU - 2.59 AU

Year: 1497 Days

Day: 38.3 Hours

Environment

Temp: -98 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.6 AU - 3.08 AU

Year: 1813 Days

Day: 23 Hours

Environment

Temp: -112 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,325,969 km

• M1: 59,989 km (0.098 R)

Asteroid Belt

Center: 6.3 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.8

Radius: 14.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.84 AU - 11.66 AU

Year: 11531 Days

Day: 10 Hours

Environment

Temp: -180 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,325,969 km

• M1: 176,226 km (0.102 R)
• M2: 721,361 km (0.104 R)
• M3: 1,282,802 km (0.094 R)
• M4: 2,034,980 km (0.109 R)
• M5: 2,523,417 km (0.071 R)
• M6: 3,181,797 km (0.118 R)
• M7: 3,846,760 km (0.107 R)
• M8: 5,660,634 km (0.109 R)
• M9: 7,397,615 km (0.076 R)
• M10: 7,990,920 km (0.06 R)
• M11: 13,755,973 km (0.049 R)
• M12: 14,787,002 km (0.079 R)
• M13: 18,418,939 km (0.087 R)
• M14: 19,038,274 km (0.11 R)
• M15: 19,591,487 km (0.079 R)
• M16: 20,482,492 km (0.085 R)
• M17: 21,231,379 km (0.051 R)
• M18: 22,084,984 km (0.083 R)
• M19: 23,050,190 km (0.076 R)
• M20: 25,633,894 km (0.107 R)
• M21: 28,303,020 km (0.094 R)
• M22: 29,232,471 km (0.082 R)
• M23: 30,396,043 km (0.107 R)
• M24: 34,654,048 km (0.119 R)
• M25: 36,803,320 km (0.078 R)
• M26: 40,580,966 km (0.077 R)
• M27: 42,028,624 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.5

Radius: 12.5

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.49 AU - 10.81 AU

Year: 12248 Days

Day: 5.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,325,969 km

• M1: 156,031 km (0.098 R)
• M2: 822,788 km (0.103 R)
• M3: 2,895,018 km (0.05 R)
• M4: 3,284,421 km (0.08 R)
• M5: 4,210,282 km (0.113 R)
• M6: 4,669,698 km (0.058 R)
• M7: 5,302,945 km (0.101 R)
• M8: 5,764,754 km (0.112 R)
• M9: 8,655,134 km (0.097 R)
• M10: 10,488,456 km (0.111 R)
• M11: 14,391,614 km (0.099 R)
• M12: 18,502,265 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.8

Radius: 14.1

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 10.84 AU - 12.06 AU

Year: 14674 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,325,969 km

• M1: 175,329 km (0.106 R)
• M2: 636,539 km (0.1 R)
• M3: 1,477,728 km (0.08 R)
• M4: 3,191,970 km (0.081 R)
• M5: 3,630,441 km (0.072 R)
• M6: 4,249,926 km (0.032 R)
• M7: 4,970,988 km (0.11 R)
• M8: 6,428,968 km (0.112 R)
• M9: 7,676,316 km (0.119 R)
• M10: 8,290,116 km (0.074 R)
• M11: 9,467,750 km (0.1 R)
• M12: 10,862,152 km (0.09 R)
• M13: 12,212,871 km (0.068 R)
• M14: 14,379,796 km (0.116 R)
• M15: 16,077,134 km (0.093 R)
• M16: 19,144,788 km (0.05 R)
• M17: 21,196,074 km (0.118 R)
• M18: 25,538,900 km (0.117 R)
• M19: 26,513,081 km (0.1 R)
• M20: 28,952,274 km (0.057 R)
• M21: 35,819,116 km (0.087 R)
• M22: 39,692,803 km (0.114 R)
• M23: 41,397,471 km (0.102 R)
• M24: 42,200,512 km (0.088 R)
• M25: 46,228,884 km (0.087 R)
• M26: 50,355,242 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.4

Radius: 12.3

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 8.79 AU - 14.61 AU

Year: 15157 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,325,969 km

• M1: 159,771 km (0.057 R)
• M2: 776,563 km (0.086 R)
• M3: 1,434,943 km (0.057 R)
• M4: 3,032,498 km (0.081 R)
• M5: 3,424,594 km (0.104 R)
• M6: 6,867,889 km (0.12 R)
• M7: 7,727,777 km (0.103 R)
• M8: 9,713,839 km (0.056 R)
• M9: 11,720,694 km (0.037 R)
• M10: 12,509,075 km (0.079 R)
• M11: 17,531,075 km (0.039 R)
• M12: 18,081,446 km (0.112 R)
• M13: 18,562,403 km (0.064 R)
• M14: 19,051,887 km (0.088 R)
• M15: 20,227,427 km (0.035 R)
• M16: 23,283,263 km (0.098 R)
• M17: 29,404,808 km (0.068 R)
• M18: 30,973,641 km (0.084 R)
• M19: 31,547,199 km (0.081 R)
• M20: 35,138,595 km (0.104 R)
• M21: 38,861,188 km (0.078 R)
• M22: 39,528,545 km (0.057 R)
• M23: 40,886,145 km (0.119 R)
• M24: 48,759,481 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.4

Radius: 4.2

Gravity: 16.52 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 13.71 AU - 14.49 AU

Year: 20053 Days

Day: 20.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,325,969 km

• M1: 52,210 km (0.064 R)
• M2: 249,380 km (0.101 R)
• M3: 704,606 km (0.066 R)
• M4: 844,031 km (0.093 R)
• M5: 1,024,446 km (0.119 R)
• M6: 3,423,547 km (0.104 R)
• M7: 4,235,265 km (0.117 R)
• M8: 4,669,698 km (0.087 R)
• M9: 8,105,362 km (0.076 R)
• M10: 9,374,700 km (0.11 R)
• M11: 12,735,267 km (0.084 R)
• M12: 13,439,723 km (0.098 R)
• M13: 15,420,848 km (0.091 R)
• M14: 16,220,598 km (0.048 R)
• M15: 16,971,430 km (0.088 R)
• M16: 22,332,718 km (0.11 R)
• M17: 24,118,019 km (0.115 R)
• M18: 27,127,180 km (0.046 R)
• M19: 27,546,354 km (0.074 R)
• M20: 31,631,123 km (0.073 R)
• M21: 35,724,420 km (0.072 R)
• M22: 47,168,807 km (0.112 R)
• M23: 48,539,572 km (0.099 R)
• M24: 54,954,030 km (0.038 R)
• M25: 56,983,026 km (0.084 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: 321 - 18,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit