🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.8

Radius: 14.5

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.62 AU - 0.8 AU

Year: 406 Days

Day: 10.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,113,488 km

• M1: 180,415 km (0.065 R)
• M2: 743,202 km (0.101 R)
• M3: 1,436,289 km (0.091 R)
• M4: 1,963,023 km (0.066 R)
• M5: 2,553,935 km (0.093 R)
• M6: 3,089,944 km (0.119 R)
• M7: 3,676,966 km (0.095 R)
• M8: 4,365,116 km (0.033 R)
• M9: 5,018,111 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216

Radius: 9.6

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.93 AU - 1.13 AU

Year: 709 Days

Day: 6.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,113,488 km

• M1: 119,379 km (0.082 R)
• M2: 464,202 km (0.063 R)
• M3: 975,827 km (0.104 R)
• M4: 1,546,393 km (0.07 R)
• M5: 2,229,607 km (0.051 R)
• M6: 3,102,061 km (0.111 R)
• M7: 3,884,907 km (0.078 R)
• M8: 4,392,193 km (0.097 R)
• M9: 5,267,191 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.1

Radius: 12.1

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.92 AU - 2.16 AU

Year: 1976 Days

Day: 8.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,113,488 km

• M1: 150,645 km (0.064 R)
• M2: 529,876 km (0.052 R)
• M3: 964,607 km (0.032 R)
• M4: 1,349,074 km (0.093 R)
• M5: 1,827,787 km (0.105 R)
• M6: 2,557,974 km (0.098 R)
• M7: 2,960,093 km (0.116 R)
• M8: 3,387,494 km (0.066 R)
• M9: 4,705,152 km (0.082 R)
• M10: 5,361,438 km (0.066 R)
• M11: 7,314,737 km (0.12 R)
• M12: 7,792,852 km (0.118 R)
• M13: 8,679,968 km (0.086 R)
• M14: 9,810,479 km (0.101 R)
• M15: 10,998,136 km (0.04 R)
• M16: 11,388,288 km (0.114 R)
• M17: 11,868,646 km (0.055 R)
• M18: 13,391,702 km (0.1 R)
• M19: 14,063,397 km (0.06 R)
• M20: 16,364,511 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.9

Radius: 11

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.12 AU - 3 AU

Year: 2778 Days

Day: 10.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,113,488 km

• M1: 136,882 km (0.1 R)
• M2: 540,048 km (0.081 R)
• M3: 1,110,764 km (0.047 R)
• M4: 1,483,412 km (0.106 R)
• M5: 1,905,877 km (0.063 R)
• M6: 2,751,853 km (0.114 R)
• M7: 3,095,180 km (0.117 R)
• M8: 3,467,529 km (0.089 R)
• M9: 3,926,944 km (0.066 R)
• M10: 4,447,545 km (0.092 R)
• M11: 5,385,972 km (0.041 R)
• M12: 6,451,558 km (0.079 R)
• M13: 7,120,559 km (0.028 R)
• M14: 7,531,804 km (0.054 R)
• M15: 8,662,913 km (0.119 R)
• M16: 9,618,245 km (0.11 R)
• M17: 11,298,828 km (0.119 R)
• M18: 13,833,315 km (0.054 R)
• M19: 14,336,114 km (0.092 R)
• M20: 15,136,911 km (0.034 R)
• M21: 16,520,691 km (0.05 R)
• M22: 18,041,054 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.7

Radius: 9.7

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.04 AU - 3.86 AU

Year: 4346 Days

Day: 8.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,113,488 km

• M1: 121,025 km (0.095 R)
• M2: 523,443 km (0.106 R)
• M3: 996,920 km (0.081 R)
• M4: 1,332,468 km (0.063 R)
• M5: 1,680,582 km (0.054 R)
• M6: 3,918,567 km (0.117 R)
• M7: 4,270,720 km (0.091 R)
• M8: 4,580,388 km (0.113 R)
• M9: 4,949,296 km (0.098 R)
• M10: 6,932,665 km (0.1 R)
• M11: 9,850,870 km (0.069 R)
• M12: 10,880,702 km (0.12 R)
• M13: 12,683,955 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.8

Radius: 9.4

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.52 AU - 5.58 AU

Year: 6583 Days

Day: 5.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,113,488 km

• M1: 116,836 km (0.115 R)
• M2: 508,782 km (0.074 R)
• M3: 890,407 km (0.098 R)
• M4: 1,380,639 km (0.118 R)
• M5: 2,239,331 km (0.104 R)
• M6: 3,806,368 km (0.118 R)
• M7: 4,565,577 km (0.085 R)
• M8: 5,634,454 km (0.107 R)
• M9: 5,950,854 km (0.071 R)
• M10: 6,408,623 km (0.1 R)
• M11: 7,365,900 km (0.077 R)
• M12: 10,119,698 km (0.066 R)
• M13: 15,672,920 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.1

Radius: 10.1

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.54 AU - 5.98 AU

Year: 8182 Days

Day: 9.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,113,488 km

• M1: 132,095 km (0.098 R)
• M2: 845,527 km (0.077 R)
• M3: 1,222,215 km (0.117 R)
• M4: 1,601,296 km (0.093 R)
• M5: 1,995,187 km (0.08 R)
• M6: 2,508,756 km (0.103 R)
• M7: 3,329,151 km (0.042 R)
• M8: 4,852,955 km (0.092 R)
• M9: 5,752,786 km (0.099 R)
• M10: 6,870,581 km (0.104 R)
• M11: 7,248,017 km (0.066 R)
• M12: 8,679,519 km (0.102 R)
• M13: 9,031,523 km (0.109 R)
• M14: 9,953,794 km (0.114 R)
• M15: 11,348,644 km (0.079 R)
• M16: 14,278,070 km (0.048 R)
• M17: 16,179,608 km (0.104 R)
• M18: 17,053,858 km (0.087 R)
• M19: 17,747,543 km (0.101 R)
• M20: 21,421,517 km (0.12 R)
• M21: 21,742,106 km (0.033 R)
• M22: 22,311,026 km (0.065 R)
• M23: 24,773,856 km (0.065 R)
• M24: 25,573,756 km (0.105 R)
• M25: 30,233,281 km (0.114 R)
• M26: 31,044,251 km (0.058 R)
• M27: 33,456,517 km (0.084 R)
• M28: 37,828,066 km (0.09 R)
• M29: 39,366,081 km (0.072 R)
• M30: 40,211,160 km (0.109 R)
• M31: 41,563,674 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.5

Radius: 4.1

Gravity: 48.04 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.45 AU - 7.17 AU

Year: 10751 Days

Day: 24.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,113,488 km

• M1: 51,312 km (0.085 R)
• M2: 870,510 km (0.078 R)
• M3: 1,155,045 km (0.073 R)
• M4: 1,413,849 km (0.102 R)
• M5: 1,587,084 km (0.112 R)
• M6: 1,774,231 km (0.081 R)
• M7: 1,958,835 km (0.11 R)
• M8: 2,100,952 km (0.1 R)
• M9: 2,307,697 km (0.063 R)
• M10: 5,958,782 km (0.092 R)
• M11: 6,335,021 km (0.065 R)
• M12: 7,909,838 km (0.097 R)
• M13: 8,692,085 km (0.052 R)
• M14: 9,524,597 km (0.114 R)
• M15: 14,630,073 km (0.085 R)
• M16: 16,017,743 km (0.057 R)
• M17: 17,949,501 km (0.082 R)
• M18: 18,652,910 km (0.111 R)
• M19: 20,281,432 km (0.119 R)
• M20: 23,818,075 km (0.077 R)
• M21: 26,125,772 km (0.094 R)
• M22: 26,324,588 km (0.097 R)
• M23: 27,129,873 km (0.11 R)
• M24: 27,538,574 km (0.107 R)
• M25: 28,578,429 km (0.097 R)
• M26: 34,172,043 km (0.103 R)
• M27: 36,848,648 km (0.034 R)
• M28: 47,313,468 km (0.103 R)
• M29: 51,405,568 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.6

Radius: 4.6

Gravity: 19.64 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.16 AU - 9.54 AU

Year: 14917 Days

Day: 16.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,113,488 km

• M1: 69,862 km (0.112 R)
• M2: 265,985 km (0.111 R)
• M3: 884,123 km (0.095 R)
• M4: 1,030,879 km (0.09 R)
• M5: 1,181,973 km (0.078 R)
• M6: 1,544,000 km (0.084 R)
• M7: 2,211,505 km (0.05 R)
• M8: 3,007,216 km (0.075 R)
• M9: 5,946,366 km (0.097 R)
• M10: 7,412,724 km (0.071 R)
• M11: 9,909,363 km (0.098 R)
• M12: 10,117,902 km (0.084 R)
• M13: 10,276,177 km (0.066 R)
• M14: 10,870,828 km (0.118 R)
• M15: 11,317,378 km (0.085 R)
• M16: 13,352,956 km (0.062 R)
• M17: 14,657,599 km (0.109 R)
• M18: 17,669,752 km (0.089 R)
• M19: 17,976,578 km (0.104 R)
• M20: 20,728,879 km (0.106 R)
• M21: 24,029,308 km (0.049 R)
• M22: 26,050,076 km (0.05 R)
• M23: 27,973,455 km (0.079 R)
• M24: 35,267,249 km (0.034 R)
• M25: 36,988,522 km (0.091 R)
• M26: 50,171,087 km (0.057 R)
• M27: 51,095,302 km (0.108 R)
• M28: 51,873,959 km (0.106 R)
• M29: 52,030,738 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.4

Radius: 7

Gravity: 15.42 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.38 AU - 9.86 AU

Year: 18680 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,113,488 km

• M1: 87,216 km (0.114 R)
• M2: 705,504 km (0.109 R)
• M3: 1,060,799 km (0.046 R)
• M4: 1,647,372 km (0.095 R)
• M5: 1,935,796 km (0.119 R)
• M6: 2,933,016 km (0.055 R)
• M7: 3,826,115 km (0.094 R)
• M8: 8,026,674 km (0.094 R)
• M9: 18,141,584 km (0.055 R)
• M10: 19,479,438 km (0.078 R)
• M11: 25,056,746 km (0.053 R)
• M12: 25,491,627 km (0.07 R)
• M13: 44,238,634 km (0.104 R)
• M14: 56,252,839 km (0.082 R)
• M15: 58,699,960 km (0.029 R)
• M16: 65,433,809 km (0.106 R)
• M17: 71,787,680 km (0.089 R)
• M18: 72,664,772 km (0.183 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 15,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit