🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.1

Radius: 12.5

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.66 AU - 0.74 AU

Year: 378 Days

Day: 13.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,152,795 km

• M1: 155,432 km (0.114 R)
• M2: 576,401 km (0.117 R)
• M3: 1,091,017 km (0.089 R)
• M4: 1,888,972 km (0.08 R)
• M5: 2,587,594 km (0.025 R)
• M6: 2,992,705 km (0.109 R)
• M7: 3,856,334 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.9

Radius: 14.9

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.56 AU - 0.88 AU

Year: 394 Days

Day: 11.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,152,795 km

• M1: 185,352 km (0.087 R)
• M2: 699,370 km (0.116 R)
• M3: 1,205,160 km (0.055 R)
• M4: 1,736,083 km (0.116 R)
• M5: 2,466,570 km (0.084 R)
• M6: 3,766,426 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.7

Radius: 12.3

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.84 AU - 1.18 AU

Year: 655 Days

Day: 5.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,152,795 km

• M1: 153,188 km (0.09 R)
• M2: 648,656 km (0.096 R)
• M3: 1,491,790 km (0.081 R)
• M4: 1,991,896 km (0.117 R)
• M5: 3,833,745 km (0.082 R)
• M6: 4,328,914 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.1

Radius: 8.6

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.15 AU - 1.41 AU

Year: 935 Days

Day: 11.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,152,795 km

• M1: 107,411 km (0.094 R)
• M2: 533,616 km (0.109 R)
• M3: 1,172,249 km (0.08 R)
• M4: 1,452,745 km (0.094 R)
• M5: 2,272,541 km (0.107 R)
• M6: 2,975,801 km (0.079 R)
• M7: 3,318,679 km (0.119 R)
• M8: 3,687,887 km (0.094 R)
• M9: 4,460,410 km (0.077 R)
• M10: 4,893,795 km (0.106 R)
• M11: 5,192,243 km (0.1 R)
• M12: 5,521,358 km (0.1 R)
• M13: 8,206,490 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.2

Radius: 12.4

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.27 AU - 1.81 AU

Year: 1234 Days

Day: 14 Hours

Environment

Temp: -189 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,152,795 km

• M1: 154,235 km (0.116 R)
• M2: 691,890 km (0.093 R)
• M3: 1,278,463 km (0.115 R)
• M4: 2,292,587 km (0.098 R)
• M5: 2,861,508 km (0.102 R)
• M6: 3,456,459 km (0.074 R)
• M7: 3,970,477 km (0.114 R)
• M8: 5,066,281 km (0.102 R)
• M9: 6,155,055 km (0.074 R)
• M10: 7,528,513 km (0.109 R)
• M11: 7,989,723 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.1

Radius: 15

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.64 AU - 3.84 AU

Year: 4670 Days

Day: 7.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,152,795 km

• M1: 201,359 km (0.09 R)
• M2: 1,053,767 km (0.085 R)
• M3: 2,058,467 km (0.088 R)
• M4: 2,736,893 km (0.12 R)
• M5: 3,832,697 km (0.081 R)
• M6: 4,438,120 km (0.082 R)
• M7: 5,106,972 km (0.105 R)
• M8: 5,842,694 km (0.059 R)
• M9: 7,978,204 km (0.111 R)
• M10: 8,654,386 km (0.088 R)
• M11: 9,405,218 km (0.11 R)
• M12: 11,037,780 km (0.112 R)
• M13: 14,959,488 km (0.102 R)
• M14: 18,480,723 km (0.118 R)
• M15: 19,546,159 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 13.3

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.91 AU - 4.71 AU

Year: 4802 Days

Day: 13.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,152,795 km

• M1: 181,911 km (0.054 R)
• M2: 1,133,952 km (0.114 R)
• M3: 1,947,764 km (0.116 R)
• M4: 3,655,574 km (0.095 R)
• M5: 4,452,182 km (0.117 R)
• M6: 4,992,979 km (0.098 R)
• M7: 5,748,897 km (0.099 R)
• M8: 7,669,135 km (0.09 R)
• M9: 8,099,678 km (0.115 R)
• M10: 8,676,826 km (0.118 R)
• M11: 9,350,316 km (0.036 R)
• M12: 16,206,536 km (0.102 R)
• M13: 17,970,145 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.5

Radius: 4.1

Gravity: 35.72 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.83 AU - 11.99 AU

Year: 20143 Days

Day: 16.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 69,152,795 km

• M1: 51,611 km (0.083 R)
• M2: 251,624 km (0.119 R)
• M3: 964,009 km (0.118 R)
• M4: 1,193,492 km (0.093 R)
• M5: 1,779,467 km (0.114 R)
• M6: 2,271,644 km (0.114 R)
• M7: 2,537,928 km (0.04 R)
• M8: 2,702,635 km (0.031 R)
• M9: 2,975,801 km (0.115 R)
• M10: 3,212,913 km (0.033 R)
• M11: 3,937,715 km (0.098 R)
• M12: 4,094,793 km (0.078 R)
• M13: 5,016,914 km (0.111 R)
• M14: 6,983,977 km (0.116 R)
• M15: 9,579,948 km (0.115 R)
• M16: 11,184,834 km (0.11 R)
• M17: 13,029,675 km (0.086 R)
• M18: 14,839,959 km (0.092 R)
• M19: 15,220,985 km (0.104 R)
• M20: 16,729,081 km (0.12 R)
• M21: 18,160,284 km (0.114 R)
• M22: 20,316,887 km (0.06 R)
• M23: 21,553,463 km (0.104 R)
• M24: 22,738,577 km (0.06 R)
• M25: 23,655,463 km (0.118 R)
• M26: 27,002,266 km (0.09 R)
• M27: 29,560,090 km (0.091 R)
• M28: 35,827,792 km (0.071 R)
• M29: 37,207,085 km (0.101 R)
• M30: 40,958,551 km (0.078 R)
• M31: 42,313,608 km (0.092 R)
• M32: 45,751,367 km (0.093 R)
• M33: 64,943,128 km (0.064 R)
• M34: 65,349,137 km (0.082 R)
• M35: 65,756,791 km (0.046 R)
• M36: 70,567,859 km (0.113 R)
• M37: 71,212,177 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345.6

Radius: 6

Gravity: 9.6 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 11.02 AU - 11.5 AU

Year: 24396 Days

Day: 23.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 69,152,795 km

• M1: 74,949 km (0.052 R)
• M2: 451,187 km (0.074 R)
• M3: 1,141,133 km (0.092 R)
• M4: 1,939,686 km (0.12 R)
• M5: 3,036,388 km (0.041 R)
• M6: 5,119,688 km (0.116 R)
• M7: 5,799,909 km (0.062 R)
• M8: 9,675,990 km (0.101 R)
• M9: 10,891,623 km (0.114 R)
• M10: 13,904,224 km (0.109 R)
• M11: 15,831,344 km (0.082 R)
• M12: 16,064,567 km (0.085 R)
• M13: 16,300,034 km (0.065 R)
• M14: 18,610,723 km (0.12 R)
• M15: 21,795,063 km (0.092 R)
• M16: 23,565,853 km (0.05 R)
• M17: 26,398,788 km (0.081 R)
• M18: 28,408,636 km (0.116 R)
• M19: 33,362,719 km (0.067 R)
• M20: 37,332,149 km (0.093 R)
• M21: 38,441,417 km (0.052 R)
• M22: 60,429,761 km (0.042 R)
• M23: 64,693,150 km (0.07 R)
• M24: 65,289,747 km (0.104 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: 404 - 15,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit