🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.5

Radius: 14.9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.52 AU - 0.72 AU

Year: 337 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,738,815 km

• M1: 186,698 km (0.112 R)
• M2: 680,521 km (0.06 R)
• M3: 1,159,533 km (0.044 R)
• M4: 1,628,223 km (0.117 R)
• M5: 2,448,020 km (0.06 R)
• M6: 2,926,434 km (0.102 R)
• M7: 3,447,034 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.6

Radius: 11.8

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.78 AU - 0.8 AU

Year: 485 Days

Day: 11.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,738,815 km

• M1: 146,905 km (0.102 R)
• M2: 578,794 km (0.06 R)
• M3: 1,040,752 km (0.088 R)
• M4: 1,939,536 km (0.04 R)
• M5: 2,473,601 km (0.091 R)
• M6: 2,900,254 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.4

Radius: 13.6

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.7 AU - 1.08 AU

Year: 580 Days

Day: 13.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,738,815 km

• M1: 169,943 km (0.089 R)
• M2: 882,179 km (0.104 R)
• M3: 1,542,055 km (0.036 R)
• M4: 3,200,048 km (0.086 R)
• M5: 4,412,240 km (0.104 R)
• M6: 5,319,850 km (0.115 R)
• M7: 5,892,361 km (0.113 R)
• M8: 6,746,565 km (0.105 R)
• M9: 7,225,128 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378

Radius: 8.7

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.71 AU - 2.13 AU

Year: 1836 Days

Day: 14.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,738,815 km

• M1: 111,301 km (0.109 R)
• M2: 590,164 km (0.064 R)
• M3: 1,008,290 km (0.117 R)
• M4: 1,518,418 km (0.114 R)
• M5: 2,192,058 km (0.07 R)
• M6: 2,565,454 km (0.078 R)
• M7: 3,378,818 km (0.081 R)
• M8: 3,929,936 km (0.1 R)
• M9: 5,658,539 km (0.118 R)
• M10: 6,508,106 km (0.114 R)
• M11: 6,850,834 km (0.118 R)
• M12: 7,952,174 km (0.116 R)
• M13: 8,344,270 km (0.096 R)
• M14: 9,381,282 km (0.036 R)
• M15: 10,435,499 km (0.106 R)
• M16: 12,217,359 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.3

Radius: 9.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.06 AU - 2.2 AU

Year: 2146 Days

Day: 13.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,738,815 km

• M1: 119,977 km (0.07 R)
• M2: 426,952 km (0.028 R)
• M3: 867,219 km (0.064 R)
• M4: 1,406,669 km (0.105 R)
• M5: 1,806,394 km (0.107 R)
• M6: 5,923,028 km (0.11 R)
• M7: 6,659,200 km (0.084 R)
• M8: 7,429,329 km (0.098 R)
• M9: 7,742,887 km (0.112 R)
• M10: 10,646,132 km (0.071 R)
• M11: 11,079,069 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.2

Radius: 9.5

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.93 AU - 3.17 AU

Year: 3677 Days

Day: 11.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,738,815 km

• M1: 118,332 km (0.099 R)
• M2: 478,863 km (0.081 R)
• M3: 1,016,218 km (0.111 R)
• M4: 1,604,736 km (0.105 R)
• M5: 2,563,360 km (0.056 R)
• M6: 3,003,776 km (0.093 R)
• M7: 3,950,281 km (0.087 R)
• M8: 7,043,367 km (0.05 R)
• M9: 9,189,049 km (0.106 R)
• M10: 11,028,205 km (0.089 R)
• M11: 12,011,363 km (0.101 R)
• M12: 13,444,660 km (0.081 R)
• M13: 14,461,626 km (0.037 R)
• M14: 15,095,772 km (0.07 R)
• M15: 23,853,530 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377

Radius: 13.2

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.55 AU - 4.53 AU

Year: 5605 Days

Day: 13.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,738,815 km

• M1: 165,605 km (0.092 R)
• M2: 1,117,945 km (0.051 R)
• M3: 3,895,828 km (0.032 R)
• M4: 4,701,263 km (0.112 R)
• M5: 5,262,404 km (0.095 R)
• M6: 8,694,479 km (0.108 R)
• M7: 9,384,723 km (0.073 R)
• M8: 12,613,793 km (0.105 R)
• M9: 14,850,880 km (0.09 R)
• M10: 16,462,797 km (0.111 R)
• M11: 19,511,601 km (0.054 R)
• M12: 20,495,058 km (0.095 R)
• M13: 23,791,746 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.3

Radius: 4.8

Gravity: 23.32 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.9 AU - 8.94 AU

Year: 13951 Days

Day: 21.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,738,815 km

• M1: 61,934 km (0.089 R)
• M2: 403,166 km (0.073 R)
• M3: 931,546 km (0.069 R)
• M4: 1,156,990 km (0.107 R)
• M5: 1,518,718 km (0.073 R)
• M6: 3,013,948 km (0.074 R)
• M7: 3,181,498 km (0.055 R)
• M8: 5,931,256 km (0.045 R)
• M9: 13,714,834 km (0.096 R)
• M10: 18,408,916 km (0.105 R)
• M11: 22,765,505 km (0.1 R)
• M12: 24,646,249 km (0.099 R)
• M13: 31,470,605 km (0.031 R)
• M14: 37,376,130 km (0.08 R)
• M15: 42,851,712 km (0.107 R)
• M16: 48,231,251 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.8

Radius: 3

Gravity: 96.31 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.72 AU - 8.58 AU

Year: 14605 Days

Day: 23.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,738,815 km

• M1: 37,399 km (0.119 R)
• M2: 280,945 km (0.102 R)
• M3: 394,789 km (0.09 R)
• M4: 728,392 km (0.043 R)
• M5: 891,903 km (0.07 R)
• M6: 1,236,875 km (0.081 R)
• M7: 2,043,657 km (0.056 R)
• M8: 2,635,914 km (0.09 R)
• M9: 2,971,313 km (0.038 R)
• M10: 4,306,175 km (0.113 R)
• M11: 4,402,965 km (0.094 R)
• M12: 5,303,693 km (0.097 R)
• M13: 5,797,067 km (0.102 R)
• M14: 8,078,435 km (0.097 R)
• M15: 13,736,376 km (0.093 R)
• M16: 14,301,257 km (0.07 R)
• M17: 14,662,087 km (0.058 R)
• M18: 15,028,901 km (0.081 R)
• M19: 15,401,699 km (0.097 R)
• M20: 15,857,374 km (0.08 R)
• M21: 16,557,492 km (0.111 R)
• M22: 17,769,684 km (0.076 R)
• M23: 19,213,752 km (0.061 R)
• M24: 23,910,527 km (0.101 R)
• M25: 26,522,206 km (0.097 R)
• M26: 36,814,390 km (0.041 R)
• M27: 37,084,115 km (0.113 R)
• M28: 37,901,369 km (0.099 R)
• M29: 38,314,408 km (0.094 R)
• M30: 46,428,597 km (0.08 R)
• M31: 50,301,686 km (0.117 R)
• M32: 57,225,524 km (0.053 R)
• M33: 57,769,013 km (0.108 R)
• M34: 59,420,125 km (0.105 R)
• M35: 60,914,009 km (0.116 R)
• M36: 66,738,752 km (0.101 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 12,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit