🌌 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: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.52 AU - 0.54 AU

Year: 139 Days

Day: 12.6 Hours

Environment

Temp: 238 °C

Axial Tilt: 35.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,177,545 km

• M1: 22,290 km (0.07 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.67 AU - 0.87 AU

Year: 243 Days

Day: 15.9 Hours

Environment

Temp: 143 °C

Axial Tilt: 49.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.79 AU - 0.85 AU

Year: 267 Days

Day: 16.2 Hours

Environment

Temp: 180 °C

Axial Tilt: 18.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.36 AU - 1.92 AU

Year: 756 Days

Day: 45 Hours

Environment

Temp: -45 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.61 AU - 2.77 AU

Year: 1588 Days

Day: 45.3 Hours

Environment

Temp: -99 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.1

Radius: 10

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.37 AU - 5.91 AU

Year: 4194 Days

Day: 7.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,177,545 km

• M1: 144,362 km (0.103 R)
• M2: 799,750 km (0.045 R)
• M3: 2,325,798 km (0.116 R)
• M4: 2,649,827 km (0.06 R)
• M5: 3,919,464 km (0.037 R)
• M6: 5,251,484 km (0.062 R)
• M7: 6,863,401 km (0.084 R)
• M8: 7,782,680 km (0.079 R)
• M9: 9,575,909 km (0.115 R)
• M10: 10,032,482 km (0.087 R)
• M11: 11,351,935 km (0.097 R)
• M12: 11,958,255 km (0.084 R)
• M13: 15,601,113 km (0.118 R)
• M14: 20,737,706 km (0.109 R)
• M15: 21,643,970 km (0.094 R)
• M16: 23,163,286 km (0.03 R)
• M17: 25,219,658 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.8

Radius: 11.1

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.56 AU - 7.22 AU

Year: 5813 Days

Day: 12.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,177,545 km

• M1: 141,220 km (0.074 R)
• M2: 658,530 km (0.075 R)
• M3: 1,696,290 km (0.109 R)
• M4: 2,814,235 km (0.091 R)
• M5: 4,148,199 km (0.119 R)
• M6: 4,931,344 km (0.102 R)
• M7: 10,722,727 km (0.031 R)
• M8: 11,270,105 km (0.097 R)
• M9: 17,525,391 km (0.091 R)
• M10: 20,060,326 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.6

Radius: 14

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 7 AU - 8.1 AU

Year: 7466 Days

Day: 7.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,177,545 km

• M1: 175,628 km (0.118 R)
• M2: 670,498 km (0.088 R)
• M3: 1,996,683 km (0.117 R)
• M4: 3,106,250 km (0.065 R)
• M5: 3,823,422 km (0.09 R)
• M6: 4,648,754 km (0.075 R)
• M7: 5,652,855 km (0.047 R)
• M8: 6,549,544 km (0.113 R)
• M9: 7,014,195 km (0.079 R)
• M10: 7,969,976 km (0.098 R)
• M11: 8,924,411 km (0.1 R)
• M12: 9,362,583 km (0.119 R)
• M13: 10,961,335 km (0.109 R)
• M14: 12,088,854 km (0.067 R)
• M15: 13,519,309 km (0.102 R)
• M16: 14,513,985 km (0.066 R)
• M17: 16,000,539 km (0.102 R)
• M18: 17,315,056 km (0.08 R)
• M19: 18,629,572 km (0.086 R)
• M20: 21,691,392 km (0.089 R)
• M21: 23,465,623 km (0.095 R)
• M22: 24,049,952 km (0.102 R)
• M23: 27,762,373 km (0.074 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909

Radius: 12.4

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 8.87 AU - 10.35 AU

Year: 10722 Days

Day: 9.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,177,545 km

• M1: 156,928 km (0.115 R)
• M2: 678,426 km (0.115 R)
• M3: 1,286,093 km (0.081 R)
• M4: 1,730,698 km (0.059 R)
• M5: 2,433,359 km (0.079 R)
• M6: 4,498,558 km (0.032 R)
• M7: 5,134,797 km (0.12 R)
• M8: 7,032,147 km (0.063 R)
• M9: 8,299,690 km (0.078 R)
• M10: 10,779,275 km (0.069 R)
• M11: 12,098,728 km (0.05 R)
• M12: 13,587,675 km (0.102 R)
• M13: 13,978,275 km (0.104 R)
• M14: 14,782,065 km (0.07 R)
• M15: 15,758,490 km (0.071 R)
• M16: 16,555,398 km (0.076 R)
• M17: 19,434,559 km (0.071 R)
• M18: 22,270,635 km (0.083 R)
• M19: 26,975,039 km (0.086 R)
• M20: 29,179,813 km (0.053 R)
• M21: 34,666,015 km (0.096 R)
• M22: 35,152,059 km (0.053 R)
• M23: 50,062,479 km (0.104 R)
• M24: 55,012,672 km (0.117 R)

Kuiper Belt

Range: 30.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 20,047 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit