🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 34.8 Hours

Environment

Temp: -111 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 57,726,680 km

• M1: 80,484 km (0.107 R)
• M2: 217,216 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810

Radius: 13.1

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.75 AU - 0.79 AU

Year: 436 Days

Day: 13.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,726,680 km

• M1: 162,912 km (0.108 R)
• M2: 705,803 km (0.066 R)
• M3: 1,231,639 km (0.114 R)
• M4: 1,850,974 km (0.087 R)
• M5: 2,523,716 km (0.103 R)
• M6: 3,237,298 km (0.092 R)
• M7: 3,674,124 km (0.112 R)
• M8: 5,359,344 km (0.104 R)
• M9: 5,921,682 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.9

Radius: 9.9

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.11 AU - 1.31 AU

Year: 859 Days

Day: 8.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,726,680 km

• M1: 123,119 km (0.071 R)
• M2: 452,384 km (0.113 R)
• M3: 1,994,289 km (0.117 R)
• M4: 3,386,148 km (0.1 R)
• M5: 5,062,392 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.4

Radius: 11.2

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.12 AU - 1.34 AU

Year: 881 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,726,680 km

• M1: 139,276 km (0.095 R)
• M2: 562,488 km (0.107 R)
• M3: 928,404 km (0.034 R)
• M4: 1,404,574 km (0.04 R)
• M5: 2,173,807 km (0.114 R)
• M6: 3,956,864 km (0.083 R)
• M7: 4,341,031 km (0.069 R)
• M8: 4,837,846 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.4

Radius: 8.8

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.96 AU - 3.38 AU

Year: 3644 Days

Day: 8.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,726,680 km

• M1: 111,002 km (0.093 R)
• M2: 422,315 km (0.11 R)
• M3: 2,084,198 km (0.119 R)
• M4: 2,411,817 km (0.101 R)
• M5: 2,994,501 km (0.037 R)
• M6: 3,282,177 km (0.074 R)
• M7: 3,588,404 km (0.037 R)
• M8: 5,160,229 km (0.103 R)
• M9: 5,522,705 km (0.111 R)
• M10: 6,415,505 km (0.097 R)
• M11: 7,762,634 km (0.082 R)
• M12: 8,170,138 km (0.072 R)
• M13: 8,485,042 km (0.087 R)
• M14: 9,905,174 km (0.085 R)
• M15: 10,630,574 km (0.072 R)
• M16: 11,133,373 km (0.057 R)
• M17: 11,652,178 km (0.096 R)
• M18: 12,460,306 km (0.102 R)
• M19: 12,784,484 km (0.097 R)
• M20: 13,353,405 km (0.103 R)
• M21: 14,389,370 km (0.09 R)
• M22: 15,425,036 km (0.082 R)
• M23: 16,179,010 km (0.041 R)
• M24: 16,620,772 km (0.086 R)
• M25: 23,050,339 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.4

Radius: 8.8

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.61 AU - 4.99 AU

Year: 5757 Days

Day: 10.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,726,680 km

• M1: 109,506 km (0.034 R)
• M2: 385,364 km (0.104 R)
• M3: 819,946 km (0.114 R)
• M4: 1,302,698 km (0.117 R)
• M5: 1,632,113 km (0.108 R)
• M6: 2,316,523 km (0.035 R)
• M7: 2,629,931 km (0.06 R)
• M8: 2,937,953 km (0.101 R)
• M9: 3,492,661 km (0.081 R)
• M10: 4,073,251 km (0.074 R)
• M11: 4,353,597 km (0.028 R)
• M12: 4,905,613 km (0.093 R)
• M13: 5,324,188 km (0.074 R)
• M14: 7,462,540 km (0.106 R)
• M15: 7,950,379 km (0.106 R)
• M16: 8,390,346 km (0.101 R)
• M17: 9,846,382 km (0.078 R)
• M18: 11,720,993 km (0.112 R)
• M19: 13,534,568 km (0.113 R)
• M20: 14,309,934 km (0.118 R)
• M21: 15,012,296 km (0.107 R)
• M22: 16,269,516 km (0.055 R)
• M23: 19,717,747 km (0.059 R)
• M24: 20,025,321 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.3

Radius: 9

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 4.33 AU - 4.71 AU

Year: 6205 Days

Day: 5.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,726,680 km

• M1: 119,379 km (0.106 R)
• M2: 404,961 km (0.074 R)
• M3: 971,489 km (0.051 R)
• M4: 1,386,772 km (0.083 R)
• M5: 1,961,826 km (0.095 R)
• M6: 2,456,696 km (0.1 R)
• M7: 3,032,798 km (0.115 R)
• M8: 4,855,049 km (0.119 R)
• M9: 5,398,538 km (0.077 R)
• M10: 6,743,872 km (0.1 R)
• M11: 7,719,250 km (0.109 R)
• M12: 8,260,495 km (0.084 R)
• M13: 9,680,777 km (0.111 R)
• M14: 10,127,925 km (0.079 R)
• M15: 10,871,876 km (0.119 R)
• M16: 13,322,738 km (0.1 R)
• M17: 15,326,900 km (0.106 R)
• M18: 19,995,251 km (0.088 R)
• M19: 21,614,648 km (0.036 R)
• M20: 23,240,179 km (0.089 R)
• M21: 23,558,822 km (0.077 R)
• M22: 24,614,534 km (0.064 R)
• M23: 27,170,863 km (0.112 R)
• M24: 29,062,229 km (0.11 R)
• M25: 30,181,520 km (0.098 R)
• M26: 33,508,876 km (0.078 R)
• M27: 33,813,756 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 474

Radius: 3.5

Gravity: 38.69 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.07 AU - 8.85 AU

Year: 15888 Days

Day: 21.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 57,726,680 km

• M1: 47,871 km (0.097 R)
• M2: 312,211 km (0.026 R)
• M3: 464,651 km (0.081 R)
• M4: 657,782 km (0.051 R)
• M5: 850,913 km (0.11 R)
• M6: 1,117,047 km (0.105 R)
• M7: 1,230,143 km (0.058 R)
• M8: 1,350,869 km (0.104 R)
• M9: 1,987,408 km (0.114 R)
• M10: 2,646,087 km (0.091 R)
• M11: 3,013,051 km (0.08 R)
• M12: 3,233,708 km (0.049 R)
• M13: 3,707,634 km (0.115 R)
• M14: 4,286,727 km (0.098 R)
• M15: 7,695,314 km (0.112 R)
• M16: 8,061,081 km (0.086 R)
• M17: 8,534,409 km (0.11 R)
• M18: 8,777,805 km (0.076 R)
• M19: 10,119,398 km (0.102 R)
• M20: 10,558,319 km (0.107 R)
• M21: 12,255,506 km (0.061 R)
• M22: 13,724,557 km (0.113 R)
• M23: 14,193,996 km (0.063 R)
• M24: 15,666,487 km (0.094 R)
• M25: 15,884,751 km (0.057 R)
• M26: 23,895,118 km (0.073 R)
• M27: 24,378,619 km (0.087 R)
• M28: 25,465,148 km (0.093 R)
• M29: 25,767,036 km (0.12 R)
• M30: 28,268,163 km (0.057 R)
• M31: 31,500,375 km (0.073 R)
• M32: 32,788,113 km (0.109 R)
• M33: 34,232,630 km (0.066 R)
• M34: 35,593,373 km (0.117 R)
• M35: 42,799,352 km (0.095 R)
• M36: 50,126,955 km (0.067 R)
• M37: 52,040,761 km (0.105 R)
• M38: 53,015,690 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 12,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit