🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.2

Radius: 14.2

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.52 AU - 0.54 AU

Year: 262 Days

Day: 12.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 33,926,816 km

• M1: 176,675 km (0.079 R)
• M2: 710,141 km (0.111 R)
• M3: 1,351,916 km (0.118 R)
• M4: 2,004,761 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.5

Radius: 14.6

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.52 AU - 0.58 AU

Year: 277 Days

Day: 13.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,926,816 km

• M1: 181,761 km (0.072 R)
• M2: 920,476 km (0.104 R)
• M3: 1,600,847 km (0.059 R)
• M4: 2,156,603 km (0.054 R)
• M5: 2,899,506 km (0.118 R)
• M6: 3,497,149 km (0.075 R)
• M7: 4,101,226 km (0.037 R)
• M8: 4,719,065 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.5

Radius: 12.5

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.74 AU - 1.22 AU

Year: 658 Days

Day: 6.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,926,816 km

• M1: 159,920 km (0.101 R)
• M2: 644,767 km (0.058 R)
• M3: 1,061,846 km (0.115 R)
• M4: 1,530,237 km (0.1 R)
• M5: 2,081,804 km (0.091 R)
• M6: 3,239,542 km (0.12 R)
• M7: 3,825,517 km (0.031 R)
• M8: 4,705,451 km (0.079 R)
• M9: 5,316,708 km (0.068 R)
• M10: 5,771,785 km (0.109 R)
• M11: 6,432,708 km (0.07 R)
• M12: 7,230,514 km (0.065 R)
• M13: 7,767,570 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.7

Radius: 8.9

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.01 AU - 1.37 AU

Year: 880 Days

Day: 5.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,926,816 km

• M1: 110,702 km (0.116 R)
• M2: 469,588 km (0.101 R)
• M3: 940,372 km (0.116 R)
• M4: 1,432,250 km (0.027 R)
• M5: 1,842,298 km (0.067 R)
• M6: 3,086,204 km (0.029 R)
• M7: 3,469,923 km (0.039 R)
• M8: 3,751,466 km (0.12 R)
• M9: 4,035,552 km (0.092 R)
• M10: 4,454,725 km (0.104 R)
• M11: 4,946,304 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 11.4

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.12 AU - 1.32 AU

Year: 914 Days

Day: 8 Hours

Environment

Temp: -174 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,926,816 km

• M1: 141,968 km (0.036 R)
• M2: 521,947 km (0.084 R)
• M3: 1,060,799 km (0.093 R)
• M4: 1,775,278 km (0.081 R)
• M5: 2,330,884 km (0.047 R)
• M6: 2,911,474 km (0.072 R)
• M7: 3,318,380 km (0.091 R)
• M8: 3,869,349 km (0.099 R)
• M9: 4,446,797 km (0.101 R)
• M10: 5,362,635 km (0.113 R)
• M11: 5,734,535 km (0.093 R)
• M12: 6,165,676 km (0.053 R)
• M13: 6,909,626 km (0.11 R)
• M14: 7,303,518 km (0.091 R)
• M15: 8,162,060 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.8

Radius: 12

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.2 AU - 1.3 AU

Year: 948 Days

Day: 8 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,926,816 km

• M1: 149,299 km (0.107 R)
• M2: 612,603 km (0.104 R)
• M3: 1,037,760 km (0.092 R)
• M4: 1,665,623 km (0.11 R)
• M5: 2,310,838 km (0.03 R)
• M6: 2,720,437 km (0.089 R)
• M7: 3,104,904 km (0.088 R)
• M8: 3,633,732 km (0.047 R)
• M9: 5,701,025 km (0.108 R)
• M10: 6,356,563 km (0.119 R)
• M11: 7,018,982 km (0.096 R)
• M12: 7,568,007 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.8

Radius: 10.7

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.3 AU - 3.18 AU

Year: 3076 Days

Day: 7.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,926,816 km

• M1: 133,591 km (0.119 R)
• M2: 480,359 km (0.091 R)
• M3: 925,113 km (0.04 R)
• M4: 1,310,029 km (0.074 R)
• M5: 1,898,696 km (0.102 R)
• M6: 2,248,306 km (0.101 R)
• M7: 2,830,392 km (0.104 R)
• M8: 5,729,598 km (0.088 R)
• M9: 7,271,803 km (0.109 R)
• M10: 7,713,266 km (0.032 R)
• M11: 9,401,029 km (0.089 R)
• M12: 10,040,411 km (0.066 R)
• M13: 11,074,132 km (0.073 R)
• M14: 13,213,082 km (0.106 R)
• M15: 14,063,696 km (0.032 R)
• M16: 15,203,482 km (0.108 R)
• M17: 17,275,113 km (0.114 R)
• M18: 20,259,441 km (0.037 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.8

Radius: 8.2

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.57 AU - 4.19 AU

Year: 5184 Days

Day: 5.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,926,816 km

• M1: 102,026 km (0.043 R)
• M2: 671,844 km (0.097 R)
• M3: 1,231,041 km (0.119 R)
• M4: 3,474,710 km (0.048 R)
• M5: 4,080,581 km (0.075 R)
• M6: 4,754,819 km (0.081 R)
• M7: 5,501,312 km (0.081 R)
• M8: 6,439,141 km (0.093 R)
• M9: 7,609,146 km (0.057 R)
• M10: 7,905,948 km (0.111 R)
• M11: 9,060,694 km (0.113 R)
• M12: 10,007,649 km (0.04 R)
• M13: 10,404,382 km (0.101 R)
• M14: 11,060,967 km (0.116 R)
• M15: 12,231,122 km (0.109 R)
• M16: 12,776,855 km (0.117 R)
• M17: 14,014,777 km (0.113 R)
• M18: 14,815,425 km (0.093 R)
• M19: 15,488,017 km (0.113 R)
• M20: 16,949,888 km (0.112 R)
• M21: 18,032,228 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.1

Radius: 10

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.85 AU - 4.35 AU

Year: 5631 Days

Day: 5.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,926,816 km

• M1: 124,615 km (0.075 R)
• M2: 514,617 km (0.104 R)
• M3: 1,073,963 km (0.104 R)
• M4: 1,548,936 km (0.106 R)
• M5: 2,207,616 km (0.086 R)
• M6: 3,083,063 km (0.1 R)
• M7: 3,956,864 km (0.112 R)
• M8: 4,426,152 km (0.053 R)
• M9: 5,809,783 km (0.075 R)
• M10: 6,156,551 km (0.097 R)
• M11: 6,891,675 km (0.048 R)
• M12: 8,337,389 km (0.108 R)
• M13: 9,194,734 km (0.105 R)
• M14: 10,336,465 km (0.081 R)
• M15: 10,941,588 km (0.114 R)
• M16: 11,325,606 km (0.098 R)
• M17: 15,919,906 km (0.099 R)
• M18: 18,423,127 km (0.095 R)
• M19: 19,382,349 km (0.105 R)
• M20: 19,803,617 km (0.072 R)
• M21: 21,030,169 km (0.117 R)
• M22: 21,549,723 km (0.076 R)
• M23: 29,844,027 km (0.1 R)
• M24: 33,825,575 km (0.05 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 16,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit