🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 12.8

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.55 AU - 0.79 AU

Year: 366 Days

Day: 6.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 44,176,007 km

• M1: 159,172 km (0.03 R)
• M2: 558,748 km (0.039 R)
• M3: 972,835 km (0.109 R)
• M4: 1,753,586 km (0.06 R)
• M5: 2,382,944 km (0.086 R)
• M6: 4,085,817 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.5

Radius: 13.7

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.72 AU - 0.84 AU

Year: 459 Days

Day: 12.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,176,007 km

• M1: 170,392 km (0.113 R)
• M2: 711,039 km (0.065 R)
• M3: 1,329,177 km (0.086 R)
• M4: 1,877,304 km (0.075 R)
• M5: 2,707,871 km (0.12 R)
• M6: 3,418,012 km (0.087 R)
• M7: 3,891,041 km (0.077 R)
• M8: 4,437,073 km (0.106 R)
• M9: 5,444,615 km (0.056 R)
• M10: 6,427,921 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.9

Radius: 11.9

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.35 AU - 2.09 AU

Year: 1504 Days

Day: 5 Hours

Environment

Temp: -187 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,176,007 km

• M1: 148,401 km (0.049 R)
• M2: 518,656 km (0.089 R)
• M3: 1,125,425 km (0.067 R)
• M4: 1,811,780 km (0.071 R)
• M5: 2,623,797 km (0.113 R)
• M6: 3,579,578 km (0.117 R)
• M7: 4,018,348 km (0.109 R)
• M8: 4,733,875 km (0.095 R)
• M9: 5,176,685 km (0.101 R)
• M10: 6,000,520 km (0.078 R)
• M11: 6,962,883 km (0.102 R)
• M12: 9,584,287 km (0.099 R)
• M13: 10,226,660 km (0.073 R)
• M14: 11,115,421 km (0.1 R)
• M15: 13,251,529 km (0.037 R)
• M16: 14,481,822 km (0.104 R)
• M17: 15,192,412 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.1

Radius: 8.5

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.58 AU - 2.16 AU

Year: 1705 Days

Day: 13.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 99.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,176,007 km

• M1: 105,766 km (0.082 R)
• M2: 395,986 km (0.119 R)
• M3: 671,545 km (0.1 R)
• M4: 991,385 km (0.105 R)
• M5: 1,872,217 km (0.079 R)
• M6: 2,512,197 km (0.073 R)
• M7: 3,213,811 km (0.071 R)
• M8: 3,707,933 km (0.104 R)
• M9: 4,615,992 km (0.114 R)
• M10: 7,212,712 km (0.1 R)
• M11: 7,755,004 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.7

Radius: 14.3

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.68 AU - 2.38 AU

Year: 1929 Days

Day: 10.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,176,007 km

• M1: 178,021 km (0.085 R)
• M2: 650,003 km (0.11 R)
• M3: 1,212,790 km (0.083 R)
• M4: 1,672,803 km (0.064 R)
• M5: 2,153,013 km (0.074 R)
• M6: 2,740,783 km (0.111 R)
• M7: 3,452,120 km (0.102 R)
• M8: 4,404,610 km (0.104 R)
• M9: 5,246,248 km (0.081 R)
• M10: 5,939,783 km (0.107 R)
• M11: 6,912,918 km (0.093 R)
• M12: 7,540,331 km (0.114 R)
• M13: 8,112,693 km (0.092 R)
• M14: 8,681,464 km (0.051 R)
• M15: 9,723,712 km (0.084 R)
• M16: 10,220,975 km (0.118 R)
• M17: 12,715,071 km (0.12 R)
• M18: 13,267,536 km (0.108 R)
• M19: 14,329,531 km (0.079 R)
• M20: 15,399,754 km (0.09 R)
• M21: 17,283,940 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999

Radius: 8.8

Gravity: 12.9 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.98 AU - 4.5 AU

Year: 4823 Days

Day: 5.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,176,007 km

• M1: 109,506 km (0.054 R)
• M2: 409,300 km (0.088 R)
• M3: 1,151,006 km (0.067 R)
• M4: 1,513,781 km (0.089 R)
• M5: 2,508,307 km (0.026 R)
• M6: 2,967,274 km (0.078 R)
• M7: 3,374,030 km (0.1 R)
• M8: 5,269,435 km (0.071 R)
• M9: 7,163,943 km (0.1 R)
• M10: 7,672,875 km (0.071 R)
• M11: 9,473,136 km (0.092 R)
• M12: 10,679,493 km (0.086 R)
• M13: 11,538,783 km (0.091 R)
• M14: 12,136,726 km (0.07 R)
• M15: 13,340,241 km (0.09 R)
• M16: 14,054,870 km (0.085 R)
• M17: 16,538,344 km (0.053 R)
• M18: 17,687,106 km (0.112 R)
• M19: 18,481,919 km (0.102 R)
• M20: 19,859,267 km (0.066 R)
• M21: 21,526,386 km (0.113 R)
• M22: 24,319,976 km (0.1 R)
• M23: 28,498,544 km (0.091 R)
• M24: 28,950,030 km (0.101 R)
• M25: 32,933,672 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740

Radius: 13.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.82 AU - 4.42 AU

Year: 5577 Days

Day: 6.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,176,007 km

• M1: 170,392 km (0.04 R)
• M2: 859,889 km (0.091 R)
• M3: 1,394,551 km (0.081 R)
• M4: 2,340,159 km (0.047 R)
• M5: 3,334,537 km (0.1 R)
• M6: 4,118,579 km (0.12 R)
• M7: 5,536,916 km (0.112 R)
• M8: 6,605,195 km (0.056 R)
• M9: 7,732,265 km (0.089 R)
• M10: 9,107,518 km (0.064 R)
• M11: 9,788,189 km (0.095 R)
• M12: 10,502,668 km (0.081 R)
• M13: 11,155,962 km (0.042 R)
• M14: 12,339,132 km (0.119 R)
• M15: 13,658,734 km (0.042 R)
• M16: 14,156,147 km (0.114 R)
• M17: 18,516,028 km (0.027 R)
• M18: 18,989,355 km (0.025 R)
• M19: 20,101,466 km (0.089 R)
• M20: 20,601,572 km (0.087 R)
• M21: 27,268,550 km (0.117 R)
• M22: 28,325,310 km (0.054 R)
• M23: 29,226,637 km (0.089 R)
• M24: 31,468,062 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300

Radius: 6.2

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.78 AU - 8.98 AU

Year: 13369 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,176,007 km

• M1: 77,193 km (0.075 R)
• M2: 370,105 km (0.039 R)
• M3: 843,283 km (0.059 R)
• M4: 1,232,387 km (0.098 R)
• M5: 1,676,394 km (0.118 R)
• M6: 2,574,131 km (0.116 R)
• M7: 2,774,293 km (0.099 R)
• M8: 3,183,592 km (0.116 R)
• M9: 3,558,933 km (0.063 R)
• M10: 4,095,691 km (0.032 R)
• M11: 4,923,715 km (0.087 R)
• M12: 5,556,514 km (0.105 R)
• M13: 6,531,593 km (0.108 R)
• M14: 7,294,691 km (0.103 R)
• M15: 7,738,847 km (0.115 R)
• M16: 7,988,676 km (0.096 R)
• M17: 9,042,294 km (0.056 R)
• M18: 10,638,054 km (0.049 R)
• M19: 11,103,902 km (0.103 R)
• M20: 11,691,672 km (0.096 R)
• M21: 12,928,996 km (0.109 R)
• M22: 15,927,386 km (0.091 R)
• M23: 17,874,702 km (0.086 R)
• M24: 18,681,333 km (0.063 R)
• M25: 19,207,170 km (0.114 R)
• M26: 21,902,325 km (0.083 R)
• M27: 23,687,028 km (0.077 R)
• M28: 27,159,344 km (0.101 R)
• M29: 39,093,065 km (0.056 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 426 - 18,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit