🌌 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: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.61 AU - 0.61 AU

Year: 303 Days

Day: 40 Hours

Environment

Temp: -127 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221

Radius: 14.9

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.88 AU - 1.02 AU

Year: 589 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 143.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,839,083 km

• M1: 185,352 km (0.095 R)
• M2: 728,392 km (0.091 R)
• M3: 1,332,468 km (0.114 R)
• M4: 1,878,052 km (0.074 R)
• M5: 2,493,497 km (0.109 R)
• M6: 3,014,247 km (0.072 R)
• M7: 3,630,740 km (0.12 R)
• M8: 4,125,760 km (0.081 R)
• M9: 4,693,484 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.1

Radius: 8.4

Gravity: 12.84 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.88 AU - 1.16 AU

Year: 655 Days

Day: 13.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,839,083 km

• M1: 104,419 km (0.118 R)
• M2: 475,871 km (0.051 R)
• M3: 771,177 km (0.1 R)
• M4: 1,412,204 km (0.037 R)
• M5: 1,718,431 km (0.068 R)
• M6: 2,107,535 km (0.072 R)
• M7: 2,667,330 km (0.056 R)
• M8: 3,114,328 km (0.038 R)
• M9: 3,389,738 km (0.076 R)
• M10: 3,695,815 km (0.076 R)
• M11: 4,112,146 km (0.081 R)
• M12: 4,461,009 km (0.06 R)
• M13: 4,933,289 km (0.025 R)
• M14: 5,938,437 km (0.069 R)
• M15: 6,919,350 km (0.11 R)
• M16: 7,276,889 km (0.104 R)
• M17: 7,552,897 km (0.117 R)
• M18: 8,077,387 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.7

Radius: 10.2

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.6 AU - 1.74 AU

Year: 1372 Days

Day: 5.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,839,083 km

• M1: 126,859 km (0.077 R)
• M2: 473,776 km (0.066 R)
• M3: 834,607 km (0.041 R)
• M4: 1,200,074 km (0.115 R)
• M5: 1,730,099 km (0.045 R)
• M6: 2,177,547 km (0.109 R)
• M7: 2,714,304 km (0.055 R)
• M8: 3,429,382 km (0.052 R)
• M9: 3,932,928 km (0.073 R)
• M10: 4,503,793 km (0.071 R)
• M11: 4,947,650 km (0.084 R)
• M12: 6,174,652 km (0.084 R)
• M13: 7,435,014 km (0.081 R)
• M14: 9,219,418 km (0.118 R)
• M15: 9,683,171 km (0.07 R)
• M16: 11,947,933 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.4

Radius: 10.9

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.85 AU - 2.03 AU

Year: 1718 Days

Day: 5 Hours

Environment

Temp: -179 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,839,083 km

• M1: 140,772 km (0.027 R)
• M2: 479,910 km (0.111 R)
• M3: 1,055,862 km (0.047 R)
• M4: 1,648,269 km (0.074 R)
• M5: 2,492,301 km (0.094 R)
• M6: 3,074,386 km (0.097 R)
• M7: 3,638,519 km (0.117 R)
• M8: 4,001,893 km (0.032 R)
• M9: 5,446,858 km (0.095 R)
• M10: 9,167,358 km (0.045 R)
• M11: 10,018,869 km (0.042 R)
• M12: 10,409,917 km (0.087 R)
• M13: 11,146,986 km (0.084 R)
• M14: 15,742,483 km (0.029 R)
• M15: 16,467,135 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.8

Radius: 9.5

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.98 AU - 3.96 AU

Year: 4110 Days

Day: 14.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,839,083 km

• M1: 118,182 km (0.081 R)
• M2: 492,775 km (0.107 R)
• M3: 1,230,143 km (0.042 R)
• M4: 1,558,959 km (0.09 R)
• M5: 2,276,580 km (0.083 R)
• M6: 4,067,716 km (0.032 R)
• M7: 4,855,498 km (0.092 R)
• M8: 5,616,054 km (0.074 R)
• M9: 6,210,107 km (0.081 R)
• M10: 7,615,429 km (0.071 R)
• M11: 8,181,358 km (0.064 R)
• M12: 8,607,413 km (0.094 R)
• M13: 9,719,374 km (0.097 R)
• M14: 11,401,153 km (0.098 R)
• M15: 11,850,246 km (0.101 R)
• M16: 16,594,742 km (0.096 R)
• M17: 16,908,000 km (0.116 R)
• M18: 18,090,123 km (0.112 R)
• M19: 18,645,430 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.7

Radius: 11.4

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.88 AU - 4.72 AU

Year: 4710 Days

Day: 14.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,839,083 km

• M1: 141,819 km (0.12 R)
• M2: 721,810 km (0.067 R)
• M3: 1,180,327 km (0.055 R)
• M4: 1,703,471 km (0.111 R)
• M5: 2,291,839 km (0.065 R)
• M6: 2,810,794 km (0.11 R)
• M7: 3,223,385 km (0.116 R)
• M8: 3,980,949 km (0.091 R)
• M9: 4,368,856 km (0.074 R)
• M10: 4,998,514 km (0.102 R)
• M11: 5,503,107 km (0.029 R)
• M12: 7,287,211 km (0.095 R)
• M13: 8,038,193 km (0.103 R)
• M14: 8,876,090 km (0.078 R)
• M15: 9,541,951 km (0.087 R)
• M16: 11,099,115 km (0.113 R)
• M17: 12,093,342 km (0.068 R)
• M18: 12,452,676 km (0.068 R)
• M19: 15,172,366 km (0.105 R)
• M20: 15,802,921 km (0.12 R)
• M21: 17,973,586 km (0.106 R)
• M22: 19,773,547 km (0.11 R)
• M23: 22,088,574 km (0.089 R)
• M24: 22,830,430 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.1

Radius: 12

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.09 AU - 4.59 AU

Year: 4784 Days

Day: 10.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,839,083 km

• M1: 149,897 km (0.119 R)
• M2: 589,565 km (0.086 R)
• M3: 1,210,845 km (0.116 R)
• M4: 1,720,675 km (0.108 R)
• M5: 2,416,006 km (0.115 R)
• M6: 2,989,564 km (0.083 R)
• M7: 3,402,454 km (0.107 R)
• M8: 4,456,670 km (0.104 R)
• M9: 5,636,698 km (0.106 R)
• M10: 6,473,848 km (0.12 R)
• M11: 7,328,351 km (0.039 R)
• M12: 8,222,049 km (0.072 R)
• M13: 8,966,148 km (0.108 R)
• M14: 10,386,131 km (0.086 R)
• M15: 11,384,248 km (0.101 R)
• M16: 12,218,855 km (0.104 R)
• M17: 14,968,464 km (0.074 R)
• M18: 15,755,648 km (0.115 R)
• M19: 16,515,007 km (0.076 R)
• M20: 17,185,205 km (0.104 R)
• M21: 17,757,566 km (0.101 R)
• M22: 18,401,735 km (0.114 R)
• M23: 19,736,746 km (0.107 R)
• M24: 21,992,233 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288

Radius: 7.1

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 5.48 AU - 7.4 AU

Year: 10391 Days

Day: 22.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,839,083 km

• M1: 88,263 km (0.094 R)
• M2: 348,413 km (0.049 R)
• M3: 602,730 km (0.097 R)
• M4: 1,623,885 km (0.108 R)
• M5: 2,026,303 km (0.072 R)
• M6: 3,134,225 km (0.108 R)
• M7: 3,370,739 km (0.095 R)
• M8: 4,281,042 km (0.082 R)
• M9: 5,226,052 km (0.065 R)
• M10: 6,136,205 km (0.099 R)
• M11: 6,439,141 km (0.069 R)
• M12: 7,636,074 km (0.039 R)
• M13: 9,632,308 km (0.064 R)
• M14: 12,693,828 km (0.08 R)
• M15: 13,805,490 km (0.069 R)
• M16: 14,680,787 km (0.048 R)
• M17: 15,284,564 km (0.12 R)
• M18: 16,735,813 km (0.029 R)
• M19: 17,595,552 km (0.107 R)
• M20: 18,763,911 km (0.057 R)
• M21: 26,435,589 km (0.116 R)
• M22: 28,426,587 km (0.115 R)
• M23: 29,269,272 km (0.098 R)
• M24: 30,710,498 km (0.11 R)
• M25: 31,299,914 km (0.092 R)
• M26: 34,572,068 km (0.113 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 18,127 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit