🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.58 AU - 0.64 AU

Year: 313 Days

Day: 21.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.53 AU - 0.71 AU

Year: 320 Days

Day: 20 Hours

Environment

Temp: -126 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968

Radius: 9

Gravity: 11.95 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.91 AU - 1.19 AU

Year: 706 Days

Day: 9.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,244,359 km

• M1: 112,498 km (0.082 R)
• M2: 465,399 km (0.104 R)
• M3: 755,918 km (0.11 R)
• M4: 1,140,833 km (0.077 R)
• M5: 1,846,187 km (0.057 R)
• M6: 2,381,000 km (0.116 R)
• M7: 2,709,068 km (0.086 R)
• M8: 3,003,177 km (0.092 R)
• M9: 3,442,845 km (0.113 R)
• M10: 3,759,544 km (0.115 R)
• M11: 4,501,699 km (0.054 R)
• M12: 4,810,619 km (0.11 R)
• M13: 5,357,249 km (0.104 R)
• M14: 6,950,317 km (0.102 R)
• M15: 7,966,386 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.8

Radius: 8.7

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.48 AU - 1.9 AU

Year: 1441 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,244,359 km

• M1: 108,159 km (0.108 R)
• M2: 416,032 km (0.065 R)
• M3: 729,738 km (0.099 R)
• M4: 1,008,439 km (0.105 R)
• M5: 1,701,227 km (0.085 R)
• M6: 2,249,204 km (0.097 R)
• M7: 2,743,475 km (0.089 R)
• M8: 3,125,548 km (0.045 R)
• M9: 3,726,483 km (0.063 R)
• M10: 4,230,329 km (0.064 R)
• M11: 4,742,103 km (0.057 R)
• M12: 5,176,834 km (0.081 R)
• M13: 5,454,338 km (0.079 R)
• M14: 5,762,660 km (0.115 R)
• M15: 6,828,694 km (0.092 R)
• M16: 7,285,117 km (0.096 R)
• M17: 7,659,710 km (0.105 R)
• M18: 8,777,356 km (0.082 R)
• M19: 9,551,226 km (0.109 R)
• M20: 10,463,473 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.4

Radius: 13.8

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.45 AU - 2.81 AU

Year: 2798 Days

Day: 5.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,244,359 km

• M1: 173,234 km (0.086 R)
• M2: 1,118,094 km (0.05 R)
• M3: 1,612,665 km (0.116 R)
• M4: 2,073,277 km (0.105 R)
• M5: 2,853,430 km (0.078 R)
• M6: 3,374,928 km (0.031 R)
• M7: 3,940,109 km (0.087 R)
• M8: 4,953,185 km (0.099 R)
• M9: 7,555,291 km (0.085 R)
• M10: 9,547,187 km (0.094 R)
• M11: 11,002,774 km (0.117 R)
• M12: 13,047,328 km (0.117 R)
• M13: 18,841,702 km (0.112 R)
• M14: 20,141,109 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.7

Radius: 11.7

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.68 AU - 4.88 AU

Year: 6856 Days

Day: 5.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,244,359 km

• M1: 149,747 km (0.04 R)
• M2: 609,163 km (0.111 R)
• M3: 1,306,887 km (0.116 R)
• M4: 1,932,804 km (0.083 R)
• M5: 2,471,955 km (0.029 R)
• M6: 3,129,737 km (0.038 R)
• M7: 5,820,853 km (0.116 R)
• M8: 6,782,618 km (0.116 R)
• M9: 7,408,835 km (0.083 R)
• M10: 8,073,199 km (0.103 R)
• M11: 8,736,815 km (0.106 R)
• M12: 9,352,111 km (0.11 R)
• M13: 9,996,279 km (0.106 R)
• M14: 14,727,312 km (0.077 R)
• M15: 16,018,342 km (0.081 R)
• M16: 17,833,712 km (0.076 R)
• M17: 19,231,255 km (0.109 R)
• M18: 22,168,310 km (0.094 R)
• M19: 27,244,764 km (0.084 R)
• M20: 32,461,990 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484

Radius: 7.2

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.63 AU - 6.31 AU

Year: 9569 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,244,359 km

• M1: 89,609 km (0.107 R)
• M2: 322,832 km (0.112 R)
• M3: 1,119,441 km (0.065 R)
• M4: 1,744,311 km (0.054 R)
• M5: 2,236,339 km (0.119 R)
• M6: 3,518,093 km (0.114 R)
• M7: 4,467,142 km (0.099 R)
• M8: 6,972,009 km (0.088 R)
• M9: 7,432,471 km (0.054 R)
• M10: 10,681,587 km (0.062 R)
• M11: 13,039,549 km (0.042 R)
• M12: 15,853,784 km (0.119 R)
• M13: 17,402,272 km (0.115 R)
• M14: 18,537,121 km (0.1 R)
• M15: 19,720,590 km (0.102 R)
• M16: 21,911,451 km (0.047 R)
• M17: 22,155,445 km (0.117 R)
• M18: 22,815,022 km (0.088 R)
• M19: 24,871,843 km (0.105 R)
• M20: 34,778,812 km (0.119 R)
• M21: 36,574,735 km (0.081 R)
• M22: 37,379,422 km (0.047 R)
• M23: 40,350,136 km (0.07 R)
• M24: 40,716,950 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566.1

Radius: 6

Gravity: 15.73 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 6.15 AU - 6.95 AU

Year: 10997 Days

Day: 19.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,244,359 km

• M1: 74,649 km (0.057 R)
• M2: 353,649 km (0.101 R)
• M3: 1,379,442 km (0.092 R)
• M4: 2,108,582 km (0.057 R)
• M5: 2,363,347 km (0.078 R)
• M6: 2,638,458 km (0.067 R)
• M7: 2,869,586 km (0.111 R)
• M8: 3,852,444 km (0.096 R)
• M9: 5,432,796 km (0.079 R)
• M10: 6,648,429 km (0.047 R)
• M11: 7,157,959 km (0.095 R)
• M12: 8,122,566 km (0.079 R)
• M13: 8,432,682 km (0.117 R)
• M14: 8,750,578 km (0.111 R)
• M15: 9,171,097 km (0.073 R)
• M16: 13,893,603 km (0.043 R)
• M17: 14,987,463 km (0.093 R)
• M18: 15,861,862 km (0.058 R)
• M19: 16,912,488 km (0.115 R)
• M20: 17,859,742 km (0.096 R)
• M21: 18,308,835 km (0.068 R)
• M22: 21,664,913 km (0.069 R)
• M23: 27,236,686 km (0.118 R)
• M24: 29,667,801 km (0.097 R)
• M25: 36,132,224 km (0.038 R)
• M26: 36,489,913 km (0.119 R)
• M27: 37,944,752 km (0.08 R)
• M28: 43,610,023 km (0.096 R)
• M29: 44,971,813 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.1

Radius: 4.1

Gravity: 24.99 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.85 AU - 8.41 AU

Year: 12489 Days

Day: 15.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,244,359 km

• M1: 51,013 km (0.039 R)
• M2: 262,993 km (0.107 R)
• M3: 588,368 km (0.051 R)
• M4: 919,129 km (0.045 R)
• M5: 1,626,129 km (0.092 R)
• M6: 2,126,235 km (0.037 R)
• M7: 2,364,095 km (0.041 R)
• M8: 2,499,332 km (0.096 R)
• M9: 3,749,970 km (0.1 R)
• M10: 5,334,062 km (0.083 R)
• M11: 6,055,123 km (0.065 R)
• M12: 6,383,192 km (0.117 R)
• M13: 6,608,486 km (0.069 R)
• M14: 7,114,725 km (0.103 R)
• M15: 7,814,993 km (0.036 R)
• M16: 9,066,977 km (0.075 R)
• M17: 9,544,793 km (0.068 R)
• M18: 11,847,852 km (0.099 R)
• M19: 13,067,374 km (0.11 R)
• M20: 13,248,088 km (0.098 R)
• M21: 18,029,835 km (0.111 R)
• M22: 19,014,338 km (0.112 R)
• M23: 20,679,662 km (0.069 R)
• M24: 20,843,172 km (0.1 R)
• M25: 21,338,939 km (0.084 R)
• M26: 22,011,980 km (0.11 R)
• M27: 23,846,050 km (0.112 R)
• M28: 39,487,704 km (0.074 R)
• M29: 40,119,007 km (0.063 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.9

Radius: 4.1

Gravity: 32.89 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.92 AU - 9.78 AU

Year: 17271 Days

Day: 22.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,244,359 km

• M1: 51,162 km (0.094 R)
• M2: 267,631 km (0.118 R)
• M3: 707,000 km (0.09 R)
• M4: 949,498 km (0.086 R)
• M5: 1,286,691 km (0.084 R)
• M6: 1,872,367 km (0.084 R)
• M7: 2,134,762 km (0.094 R)
• M8: 2,733,153 km (0.082 R)
• M9: 3,121,509 km (0.077 R)
• M10: 9,339,993 km (0.106 R)
• M11: 10,965,823 km (0.06 R)
• M12: 13,573,015 km (0.097 R)
• M13: 13,847,527 km (0.078 R)
• M14: 16,800,140 km (0.079 R)
• M15: 17,116,689 km (0.061 R)
• M16: 17,761,606 km (0.045 R)
• M17: 18,172,850 km (0.113 R)
• M18: 20,956,268 km (0.045 R)
• M19: 21,415,384 km (0.111 R)
• M20: 26,169,305 km (0.116 R)
• M21: 28,119,313 km (0.119 R)
• M22: 33,041,383 km (0.05 R)
• M23: 33,913,837 km (0.064 R)
• M24: 38,919,831 km (0.093 R)
• M25: 45,152,976 km (0.059 R)
• M26: 47,160,579 km (0.112 R)
• M27: 49,712,270 km (0.079 R)
• M28: 53,709,974 km (0.084 R)
• M29: 54,396,479 km (0.112 R)
• M30: 62,905,755 km (0.103 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 11,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit