🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.2

Radius: 12.2

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.47 AU - 0.57 AU

Year: 254 Days

Day: 9.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 88,666,035 km

• M1: 151,842 km (0.082 R)
• M2: 542,143 km (0.096 R)
• M3: 941,270 km (0.096 R)
• M4: 1,376,450 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.5

Radius: 9.2

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.63 AU - 0.73 AU

Year: 380 Days

Day: 14.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 154.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 88,666,035 km

• M1: 114,592 km (0.105 R)
• M2: 492,925 km (0.104 R)
• M3: 951,143 km (0.108 R)
• M4: 1,617,303 km (0.092 R)
• M5: 2,204,624 km (0.105 R)
• M6: 2,980,438 km (0.099 R)
• M7: 3,414,123 km (0.114 R)
• M8: 3,738,600 km (0.101 R)
• M9: 4,520,399 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.7

Radius: 13.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.78 AU - 0.94 AU

Year: 541 Days

Day: 14.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,666,035 km

• M1: 167,849 km (0.08 R)
• M2: 589,116 km (0.093 R)
• M3: 1,018,911 km (0.059 R)
• M4: 1,560,156 km (0.036 R)
• M5: 2,060,860 km (0.073 R)
• M6: 3,111,486 km (0.08 R)
• M7: 4,059,937 km (0.071 R)
• M8: 4,761,251 km (0.074 R)
• M9: 5,578,205 km (0.12 R)
• M10: 6,058,564 km (0.083 R)
• M11: 6,748,958 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 12

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.26 AU - 4.58 AU

Year: 5264 Days

Day: 12.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,666,035 km

• M1: 149,299 km (0.092 R)
• M2: 978,520 km (0.067 R)
• M3: 1,457,682 km (0.118 R)
• M4: 1,975,141 km (0.09 R)
• M5: 3,095,330 km (0.112 R)
• M6: 3,635,976 km (0.101 R)
• M7: 4,044,977 km (0.11 R)
• M8: 5,672,751 km (0.105 R)
• M9: 6,225,665 km (0.045 R)
• M10: 6,693,607 km (0.116 R)
• M11: 7,375,474 km (0.116 R)
• M12: 8,034,902 km (0.082 R)
• M13: 9,778,914 km (0.04 R)
• M14: 10,739,781 km (0.111 R)
• M15: 12,479,903 km (0.084 R)
• M16: 13,417,283 km (0.042 R)
• M17: 15,644,048 km (0.093 R)
• M18: 16,073,842 km (0.071 R)
• M19: 16,511,715 km (0.083 R)
• M20: 16,901,268 km (0.115 R)
• M21: 22,337,655 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.9

Radius: 14.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.33 AU - 5.43 AU

Year: 8464 Days

Day: 8 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,666,035 km

• M1: 176,825 km (0.085 R)
• M2: 755,619 km (0.093 R)
• M3: 1,283,699 km (0.088 R)
• M4: 2,750,806 km (0.106 R)
• M5: 3,201,843 km (0.1 R)
• M6: 4,081,927 km (0.101 R)
• M7: 6,974,552 km (0.098 R)
• M8: 7,557,984 km (0.088 R)
• M9: 12,389,097 km (0.109 R)
• M10: 17,145,562 km (0.109 R)
• M11: 20,844,967 km (0.086 R)
• M12: 28,111,833 km (0.112 R)
• M13: 32,811,899 km (0.118 R)
• M14: 35,400,840 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 209.5

Radius: 4.7

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.6 AU - 8.06 AU

Year: 12107 Days

Day: 21.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,666,035 km

• M1: 60,438 km (0.073 R)
• M2: 208,539 km (0.103 R)
• M3: 470,037 km (0.112 R)
• M4: 915,240 km (0.116 R)
• M5: 1,989,951 km (0.033 R)
• M6: 3,199,749 km (0.039 R)
• M7: 3,623,410 km (0.115 R)
• M8: 3,836,886 km (0.105 R)
• M9: 4,083,723 km (0.117 R)
• M10: 7,057,728 km (0.064 R)
• M11: 8,371,796 km (0.086 R)
• M12: 10,588,238 km (0.072 R)
• M13: 18,116,452 km (0.076 R)
• M14: 25,445,700 km (0.092 R)
• M15: 27,567,746 km (0.067 R)
• M16: 28,300,476 km (0.06 R)
• M17: 32,767,319 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 456.9

Radius: 7.1

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 8.43 AU - 8.61 AU

Year: 16867 Days

Day: 20.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 88,666,035 km

• M1: 88,562 km (0.041 R)
• M2: 313,258 km (0.111 R)
• M3: 591,360 km (0.084 R)
• M4: 1,216,231 km (0.065 R)
• M5: 1,460,075 km (0.073 R)
• M6: 1,769,593 km (0.059 R)
• M7: 2,276,431 km (0.099 R)
• M8: 3,017,389 km (0.061 R)
• M9: 4,541,492 km (0.108 R)
• M10: 4,965,752 km (0.039 R)
• M11: 7,318,926 km (0.109 R)
• M12: 7,994,959 km (0.084 R)
• M13: 9,946,912 km (0.027 R)
• M14: 10,273,185 km (0.077 R)
• M15: 10,889,678 km (0.052 R)
• M16: 13,472,186 km (0.049 R)
• M17: 14,347,782 km (0.105 R)
• M18: 19,980,591 km (0.097 R)
• M19: 21,386,362 km (0.108 R)
• M20: 22,297,712 km (0.095 R)
• M21: 23,906,039 km (0.065 R)
• M22: 24,197,605 km (0.025 R)
• M23: 28,208,174 km (0.112 R)
• M24: 30,541,153 km (0.05 R)
• M25: 33,482,547 km (0.06 R)
• M26: 34,092,607 km (0.064 R)
• M27: 34,834,463 km (0.113 R)
• M28: 38,973,985 km (0.077 R)
• M29: 46,230,080 km (0.093 R)
• M30: 50,572,458 km (0.088 R)
• M31: 51,537,214 km (0.067 R)
• M32: 52,187,068 km (0.1 R)
• M33: 54,336,939 km (0.114 R)
• M34: 55,688,855 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.5

Radius: 5.6

Gravity: 29.26 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 8.06 AU - 12.12 AU

Year: 21738 Days

Day: 23.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 88,666,035 km

• M1: 69,713 km (0.049 R)
• M2: 474,973 km (0.027 R)
• M3: 696,677 km (0.106 R)
• M4: 950,096 km (0.087 R)
• M5: 1,973,196 km (0.088 R)
• M6: 5,825,341 km (0.12 R)
• M7: 6,310,786 km (0.11 R)
• M8: 6,633,618 km (0.112 R)
• M9: 8,637,183 km (0.116 R)
• M10: 9,564,689 km (0.113 R)
• M11: 9,806,589 km (0.106 R)
• M12: 11,144,144 km (0.091 R)
• M13: 14,175,894 km (0.108 R)
• M14: 17,266,586 km (0.1 R)
• M15: 19,591,786 km (0.113 R)
• M16: 23,732,805 km (0.108 R)
• M17: 28,050,199 km (0.113 R)
• M18: 28,671,180 km (0.097 R)
• M19: 30,719,474 km (0.109 R)
• M20: 34,819,204 km (0.101 R)
• M21: 39,578,660 km (0.102 R)
• M22: 42,437,475 km (0.053 R)
• M23: 43,751,094 km (0.037 R)
• M24: 44,753,998 km (0.111 R)
• M25: 45,430,929 km (0.113 R)
• M26: 50,180,511 km (0.057 R)
• M27: 50,911,297 km (0.108 R)
• M28: 51,095,003 km (0.03 R)
• M29: 51,463,911 km (0.095 R)
• M30: 54,095,787 km (0.057 R)
• M31: 65,087,939 km (0.101 R)
• M32: 67,053,655 km (0.103 R)
• M33: 68,833,870 km (0.073 R)
• M34: 69,283,860 km (0.096 R)
• M35: 72,721,021 km (0.098 R)
• M36: 85,255,527 km (0.082 R)
• M37: 86,295,382 km (0.093 R)
• M38: 87,080,921 km (0.079 R)
• M39: 87,343,764 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 13,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit