🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.1

Radius: 11.7

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.51 AU - 0.59 AU

Year: 282 Days

Day: 9.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,856,948 km

• M1: 145,559 km (0.079 R)
• M2: 544,237 km (0.077 R)
• M3: 927,357 km (0.084 R)
• M4: 1,535,921 km (0.062 R)
• M5: 2,112,920 km (0.091 R)
• M6: 2,657,307 km (0.046 R)
• M7: 3,452,120 km (0.107 R)
• M8: 4,150,443 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.5

Radius: 11.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.5 AU - 0.7 AU

Year: 321 Days

Day: 6 Hours

Environment

Temp: -148 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,856,948 km

• M1: 143,016 km (0.112 R)
• M2: 520,152 km (0.105 R)
• M3: 882,478 km (0.119 R)
• M4: 1,411,755 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.5

Radius: 11.4

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.52 AU - 0.76 AU

Year: 353 Days

Day: 6.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,856,948 km

• M1: 142,118 km (0.098 R)
• M2: 511,475 km (0.12 R)
• M3: 945,459 km (0.081 R)
• M4: 1,338,452 km (0.109 R)
• M5: 1,711,549 km (0.118 R)
• M6: 2,132,667 km (0.113 R)
• M7: 2,623,049 km (0.099 R)
• M8: 3,022,775 km (0.095 R)
• M9: 3,612,190 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.9

Radius: 14.3

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.99 AU - 1.37 AU

Year: 885 Days

Day: 8.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,856,948 km

• M1: 177,872 km (0.106 R)
• M2: 700,268 km (0.085 R)
• M3: 1,214,884 km (0.093 R)
• M4: 1,811,181 km (0.037 R)
• M5: 2,757,089 km (0.091 R)
• M6: 3,308,058 km (0.057 R)
• M7: 3,823,123 km (0.096 R)
• M8: 5,205,856 km (0.067 R)
• M9: 5,906,872 km (0.098 R)
• M10: 7,231,112 km (0.038 R)
• M11: 8,105,661 km (0.079 R)
• M12: 9,418,383 km (0.047 R)
• M13: 10,095,762 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158

Radius: 12.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.44 AU - 1.46 AU

Year: 1205 Days

Day: 8.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,856,948 km

• M1: 150,495 km (0.078 R)
• M2: 548,127 km (0.063 R)
• M3: 1,007,392 km (0.072 R)
• M4: 1,457,682 km (0.115 R)
• M5: 2,319,665 km (0.095 R)
• M6: 2,938,701 km (0.042 R)
• M7: 3,772,709 km (0.087 R)
• M8: 4,774,416 km (0.103 R)
• M9: 5,726,008 km (0.095 R)
• M10: 6,421,489 km (0.053 R)
• M11: 6,984,575 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.4

Radius: 12.9

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.26 AU - 3.46 AU

Year: 4251 Days

Day: 11.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,856,948 km

• M1: 160,519 km (0.083 R)
• M2: 616,942 km (0.093 R)
• M3: 1,329,775 km (0.088 R)
• M4: 1,861,895 km (0.095 R)
• M5: 2,681,243 km (0.052 R)
• M6: 3,137,367 km (0.098 R)
• M7: 3,728,577 km (0.112 R)
• M8: 5,057,904 km (0.112 R)
• M9: 6,106,136 km (0.098 R)
• M10: 6,744,770 km (0.104 R)
• M11: 8,969,888 km (0.041 R)
• M12: 9,555,265 km (0.108 R)
• M13: 10,889,678 km (0.047 R)
• M14: 13,822,993 km (0.058 R)
• M15: 14,499,026 km (0.092 R)
• M16: 16,602,372 km (0.035 R)
• M17: 17,727,048 km (0.113 R)
• M18: 18,215,486 km (0.113 R)
• M19: 18,650,367 km (0.103 R)
• M20: 20,260,040 km (0.097 R)
• M21: 20,794,254 km (0.085 R)
• M22: 21,682,416 km (0.085 R)

Asteroid Belt

Center: 3.88 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.6

Radius: 8.5

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.12 AU - 4.68 AU

Year: 6371 Days

Day: 7.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,856,948 km

• M1: 105,766 km (0.112 R)
• M2: 482,603 km (0.105 R)
• M3: 807,230 km (0.081 R)
• M4: 1,165,517 km (0.091 R)
• M5: 1,603,839 km (0.09 R)
• M6: 2,027,650 km (0.11 R)
• M7: 2,473,152 km (0.095 R)
• M8: 2,944,236 km (0.025 R)
• M9: 4,884,520 km (0.066 R)
• M10: 6,216,091 km (0.106 R)
• M11: 6,642,295 km (0.026 R)
• M12: 7,017,935 km (0.116 R)
• M13: 8,907,656 km (0.113 R)
• M14: 9,578,004 km (0.085 R)
• M15: 9,881,687 km (0.082 R)
• M16: 10,554,130 km (0.062 R)
• M17: 11,449,174 km (0.118 R)
• M18: 12,651,193 km (0.112 R)
• M19: 16,697,366 km (0.104 R)
• M20: 17,715,529 km (0.097 R)
• M21: 20,227,726 km (0.115 R)
• M22: 21,903,671 km (0.03 R)
• M23: 23,434,656 km (0.042 R)
• M24: 25,281,891 km (0.111 R)
• M25: 28,812,101 km (0.089 R)
• M26: 29,537,202 km (0.119 R)
• M27: 29,812,312 km (0.057 R)
• M28: 30,367,620 km (0.12 R)
• M29: 30,741,614 km (0.098 R)
• M30: 31,213,297 km (0.064 R)
• M31: 31,594,322 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 527

Radius: 6.4

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.1 AU - 7.16 AU

Year: 13142 Days

Day: 23 Hours

Environment

Temp: -238 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,856,948 km

• M1: 79,586 km (0.069 R)
• M2: 338,091 km (0.107 R)
• M3: 771,177 km (0.039 R)
• M4: 1,259,464 km (0.091 R)
• M5: 2,788,205 km (0.118 R)
• M6: 4,938,375 km (0.075 R)
• M7: 5,438,331 km (0.073 R)
• M8: 7,435,164 km (0.087 R)
• M9: 7,736,753 km (0.074 R)
• M10: 8,929,347 km (0.052 R)
• M11: 10,667,375 km (0.093 R)
• M12: 10,940,691 km (0.09 R)
• M13: 11,788,911 km (0.109 R)
• M14: 12,741,101 km (0.115 R)
• M15: 13,615,501 km (0.034 R)
• M16: 14,797,473 km (0.111 R)
• M17: 22,633,859 km (0.072 R)
• M18: 26,417,189 km (0.08 R)
• M19: 26,917,893 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.3

Radius: 6

Gravity: 18.2 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 5.48 AU - 9.08 AU

Year: 13558 Days

Day: 20.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,856,948 km

• M1: 80,184 km (0.069 R)
• M2: 1,066,932 km (0.031 R)
• M3: 1,779,467 km (0.1 R)
• M4: 2,286,155 km (0.085 R)
• M5: 4,636,786 km (0.076 R)
• M6: 6,464,872 km (0.077 R)
• M7: 7,428,133 km (0.1 R)
• M8: 12,618,132 km (0.107 R)
• M9: 13,190,044 km (0.042 R)
• M10: 17,609,465 km (0.089 R)
• M11: 20,321,674 km (0.105 R)
• M12: 35,560,162 km (0.043 R)
• M13: 37,472,172 km (0.075 R)
• M14: 39,050,280 km (0.078 R)
• M15: 43,046,039 km (0.065 R)
• M16: 55,970,996 km (0.117 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: 201 - 15,433 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit