🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.6

Radius: 13.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.57 AU - 0.61 AU

Year: 307 Days

Day: 6.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,350,595 km

• M1: 167,998 km (0.073 R)
• M2: 591,211 km (0.087 R)
• M3: 1,045,839 km (0.1 R)
• M4: 1,877,304 km (0.118 R)
• M5: 2,466,420 km (0.105 R)
• M6: 2,935,858 km (0.097 R)
• M7: 3,465,285 km (0.061 R)
• M8: 3,936,668 km (0.089 R)
• M9: 4,424,955 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.9

Radius: 11.5

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.53 AU - 0.67 AU

Year: 315 Days

Day: 5.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,350,595 km

• M1: 143,016 km (0.054 R)
• M2: 518,805 km (0.12 R)
• M3: 1,094,159 km (0.101 R)
• M4: 1,652,308 km (0.097 R)
• M5: 2,073,875 km (0.089 R)
• M6: 2,633,371 km (0.111 R)
• M7: 3,182,096 km (0.065 R)
• M8: 4,173,481 km (0.116 R)
• M9: 4,607,016 km (0.085 R)
• M10: 5,130,459 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.1

Radius: 8.3

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.89 AU - 0.99 AU

Year: 618 Days

Day: 9.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,350,595 km

• M1: 103,372 km (0.085 R)
• M2: 450,290 km (0.084 R)
• M3: 745,895 km (0.06 R)
• M4: 1,049,130 km (0.107 R)
• M5: 1,368,222 km (0.063 R)
• M6: 1,791,734 km (0.078 R)
• M7: 2,088,087 km (0.103 R)
• M8: 2,652,221 km (0.038 R)
• M9: 3,004,823 km (0.101 R)
• M10: 3,566,712 km (0.087 R)
• M11: 3,941,754 km (0.118 R)
• M12: 4,269,374 km (0.073 R)
• M13: 4,802,840 km (0.041 R)
• M14: 5,261,058 km (0.087 R)
• M15: 5,947,563 km (0.079 R)
• M16: 6,495,689 km (0.105 R)
• M17: 6,792,192 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584

Radius: 12.5

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.83 AU - 1.21 AU

Year: 699 Days

Day: 13 Hours

Environment

Temp: -170 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,350,595 km

• M1: 156,031 km (0.094 R)
• M2: 628,161 km (0.039 R)
• M3: 1,134,251 km (0.038 R)
• M4: 1,675,646 km (0.107 R)
• M5: 2,163,933 km (0.071 R)
• M6: 2,573,083 km (0.046 R)
• M7: 2,987,021 km (0.104 R)
• M8: 3,419,807 km (0.096 R)
• M9: 4,490,778 km (0.072 R)
• M10: 4,893,945 km (0.119 R)
• M11: 5,286,340 km (0.088 R)
• M12: 5,811,129 km (0.094 R)
• M13: 6,232,247 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.9

Radius: 9.4

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.1 AU - 1.54 AU

Year: 1029 Days

Day: 12.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,350,595 km

• M1: 117,135 km (0.077 R)
• M2: 455,077 km (0.105 R)
• M3: 760,705 km (0.094 R)
• M4: 1,189,901 km (0.078 R)
• M5: 1,489,546 km (0.119 R)
• M6: 2,111,724 km (0.046 R)
• M7: 2,664,188 km (0.039 R)
• M8: 3,053,143 km (0.092 R)
• M9: 4,009,223 km (0.118 R)
• M10: 4,785,486 km (0.078 R)
• M11: 5,077,950 km (0.098 R)
• M12: 5,658,839 km (0.063 R)
• M13: 6,883,896 km (0.078 R)
• M14: 7,353,184 km (0.116 R)
• M15: 8,096,985 km (0.089 R)
• M16: 9,418,532 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.9

Radius: 9.8

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.34 AU - 4.5 AU

Year: 6303 Days

Day: 7.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,350,595 km

• M1: 122,670 km (0.083 R)
• M2: 496,216 km (0.08 R)
• M3: 1,087,427 km (0.091 R)
• M4: 1,444,966 km (0.072 R)
• M5: 1,842,148 km (0.034 R)
• M6: 2,719,091 km (0.05 R)
• M7: 3,193,615 km (0.1 R)
• M8: 3,743,986 km (0.106 R)
• M9: 5,114,153 km (0.095 R)
• M10: 5,723,764 km (0.114 R)
• M11: 7,845,660 km (0.117 R)
• M12: 8,244,488 km (0.117 R)
• M13: 8,965,251 km (0.099 R)
• M14: 12,961,908 km (0.032 R)
• M15: 14,306,942 km (0.118 R)
• M16: 20,150,235 km (0.064 R)
• M17: 20,968,685 km (0.067 R)
• M18: 22,165,617 km (0.066 R)
• M19: 22,526,148 km (0.065 R)
• M20: 23,482,079 km (0.099 R)
• M21: 26,270,134 km (0.096 R)
• M22: 27,910,774 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.7

Radius: 8.8

Gravity: 10.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.11 AU - 6.15 AU

Year: 9061 Days

Day: 14 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,350,595 km

• M1: 109,506 km (0.043 R)
• M2: 423,063 km (0.066 R)
• M3: 753,674 km (0.081 R)
• M4: 1,515,277 km (0.101 R)
• M5: 2,013,737 km (0.118 R)
• M6: 3,966,887 km (0.07 R)
• M7: 4,267,728 km (0.063 R)
• M8: 4,854,002 km (0.069 R)
• M9: 6,222,972 km (0.066 R)
• M10: 6,860,110 km (0.101 R)
• M11: 8,575,399 km (0.113 R)
• M12: 9,702,768 km (0.109 R)
• M13: 10,715,396 km (0.074 R)
• M14: 13,799,656 km (0.077 R)
• M15: 18,316,165 km (0.09 R)
• M16: 20,017,093 km (0.068 R)
• M17: 24,451,622 km (0.052 R)
• M18: 27,581,808 km (0.03 R)
• M19: 35,786,803 km (0.083 R)
• M20: 36,140,452 km (0.059 R)
• M21: 37,821,633 km (0.082 R)
• M22: 40,440,194 km (0.09 R)
• M23: 44,116,412 km (0.033 R)
• M24: 46,314,005 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.6

Radius: 5.5

Gravity: 19.59 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.32 AU - 9.36 AU

Year: 16336 Days

Day: 22.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,350,595 km

• M1: 70,012 km (0.056 R)
• M2: 261,347 km (0.112 R)
• M3: 456,274 km (0.043 R)
• M4: 646,113 km (0.083 R)
• M5: 1,300,155 km (0.079 R)
• M6: 1,660,237 km (0.041 R)
• M7: 2,142,092 km (0.08 R)
• M8: 2,533,739 km (0.118 R)
• M9: 4,756,913 km (0.045 R)
• M10: 5,644,926 km (0.11 R)
• M11: 6,228,059 km (0.054 R)
• M12: 7,198,949 km (0.107 R)
• M13: 9,017,760 km (0.049 R)
• M14: 10,033,080 km (0.065 R)
• M15: 11,603,708 km (0.074 R)
• M16: 12,608,109 km (0.046 R)
• M17: 13,065,280 km (0.026 R)
• M18: 15,891,931 km (0.086 R)
• M19: 16,195,166 km (0.112 R)
• M20: 23,199,638 km (0.108 R)
• M21: 24,991,072 km (0.118 R)
• M22: 28,067,702 km (0.107 R)
• M23: 28,958,857 km (0.111 R)
• M24: 29,753,969 km (0.085 R)
• M25: 32,590,495 km (0.066 R)
• M26: 32,834,788 km (0.083 R)
• M27: 37,442,253 km (0.095 R)
• M28: 44,380,303 km (0.103 R)
• M29: 51,961,474 km (0.105 R)
• M30: 53,134,471 km (0.114 R)
• M31: 58,003,134 km (0.114 R)
• M32: 62,030,907 km (0.108 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: 216 - 12,746 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit