🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965

Radius: 12

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.9 AU - 0.94 AU

Year: 579 Days

Day: 8.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,366,438 km

• M1: 149,299 km (0.026 R)
• M2: 705,204 km (0.033 R)
• M3: 1,337,405 km (0.096 R)
• M4: 1,778,270 km (0.086 R)
• M5: 2,208,364 km (0.117 R)
• M6: 2,719,240 km (0.111 R)
• M7: 3,559,083 km (0.067 R)
• M8: 4,548,374 km (0.111 R)
• M9: 5,436,087 km (0.114 R)
• M10: 6,155,204 km (0.081 R)
• M11: 6,851,433 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.9

Radius: 9.5

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.94 AU - 1.22 AU

Year: 736 Days

Day: 11.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,366,438 km

• M1: 118,182 km (0.043 R)
• M2: 448,046 km (0.072 R)
• M3: 839,992 km (0.047 R)
• M4: 1,139,188 km (0.101 R)
• M5: 1,482,216 km (0.06 R)
• M6: 1,851,722 km (0.086 R)
• M7: 2,272,691 km (0.11 R)
• M8: 2,624,246 km (0.118 R)
• M9: 3,036,089 km (0.072 R)
• M10: 3,693,272 km (0.09 R)
• M11: 4,182,008 km (0.08 R)
• M12: 5,098,146 km (0.033 R)
• M13: 5,539,908 km (0.105 R)
• M14: 6,379,601 km (0.038 R)
• M15: 6,684,482 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.2

Radius: 8.6

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.08 AU - 1.62 AU

Year: 1029 Days

Day: 8.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 130.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,366,438 km

• M1: 106,962 km (0.062 R)
• M2: 440,865 km (0.111 R)
• M3: 755,619 km (0.098 R)
• M4: 1,143,526 km (0.07 R)
• M5: 1,602,492 km (0.112 R)
• M6: 2,088,536 km (0.079 R)
• M7: 2,966,675 km (0.101 R)
• M8: 3,731,569 km (0.061 R)
• M9: 5,373,107 km (0.11 R)
• M10: 6,817,474 km (0.075 R)
• M11: 7,863,911 km (0.101 R)
• M12: 9,629,316 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.5

Radius: 11.1

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.56 AU - 1.88 AU

Year: 1480 Days

Day: 14.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,366,438 km

• M1: 174,730 km (0.069 R)
• M2: 530,025 km (0.118 R)
• M3: 1,250,937 km (0.107 R)
• M4: 1,812,229 km (0.113 R)
• M5: 2,163,036 km (0.068 R)
• M6: 2,927,182 km (0.06 R)
• M7: 3,862,767 km (0.115 R)
• M8: 4,265,484 km (0.042 R)
• M9: 4,894,992 km (0.101 R)
• M10: 5,446,260 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 9.4

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.73 AU - 2.69 AU

Year: 2155 Days

Day: 11.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,366,438 km

• M1: 116,986 km (0.095 R)
• M2: 1,117,346 km (0.076 R)
• M3: 3,475,159 km (0.055 R)
• M4: 3,840,477 km (0.081 R)
• M5: 4,906,212 km (0.039 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 742.2

Radius: 4.9

Gravity: 30.91 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.26 AU - 9 AU

Year: 13826 Days

Day: 17.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,366,438 km

• M1: 62,532 km (0.11 R)
• M2: 243,246 km (0.115 R)
• M3: 486,193 km (0.064 R)
• M4: 719,715 km (0.098 R)
• M5: 991,983 km (0.052 R)
• M6: 1,415,345 km (0.108 R)
• M7: 1,627,924 km (0.096 R)
• M8: 1,792,781 km (0.076 R)
• M9: 2,459,987 km (0.083 R)
• M10: 2,791,795 km (0.037 R)
• M11: 3,029,058 km (0.068 R)
• M12: 5,260,460 km (0.118 R)
• M13: 10,495,787 km (0.119 R)
• M14: 10,665,879 km (0.096 R)
• M15: 12,406,750 km (0.099 R)
• M16: 13,983,960 km (0.08 R)
• M17: 16,592,797 km (0.103 R)
• M18: 17,371,155 km (0.098 R)
• M19: 17,930,352 km (0.091 R)
• M20: 18,584,095 km (0.043 R)
• M21: 19,169,022 km (0.114 R)
• M22: 20,200,051 km (0.031 R)
• M23: 24,695,317 km (0.065 R)
• M24: 28,583,815 km (0.066 R)
• M25: 33,839,188 km (0.112 R)
• M26: 34,086,623 km (0.101 R)
• M27: 38,211,934 km (0.095 R)
• M28: 38,749,888 km (0.085 R)
• M29: 40,394,118 km (0.116 R)
• M30: 40,672,519 km (0.06 R)
• M31: 46,210,034 km (0.12 R)
• M32: 48,999,885 km (0.088 R)
• M33: 51,409,009 km (0.111 R)
• M34: 52,064,397 km (0.099 R)
• M35: 60,007,895 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.4

Radius: 6.7

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.89 AU - 8.25 AU

Year: 15039 Days

Day: 19.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 93.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,366,438 km

• M1: 84,224 km (0.11 R)
• M2: 329,564 km (0.072 R)
• M3: 629,657 km (0.102 R)
• M4: 919,429 km (0.116 R)
• M5: 1,297,163 km (0.078 R)
• M6: 3,578,680 km (0.086 R)
• M7: 4,512,620 km (0.119 R)
• M8: 5,165,016 km (0.113 R)
• M9: 5,395,995 km (0.107 R)
• M10: 6,240,774 km (0.063 R)
• M11: 7,711,471 km (0.061 R)
• M12: 8,550,117 km (0.068 R)
• M13: 9,158,082 km (0.115 R)
• M14: 12,225,587 km (0.086 R)
• M15: 14,700,833 km (0.082 R)
• M16: 15,640,757 km (0.101 R)
• M17: 17,417,830 km (0.11 R)
• M18: 19,642,799 km (0.072 R)
• M19: 24,370,540 km (0.078 R)
• M20: 25,304,480 km (0.109 R)
• M21: 26,651,908 km (0.108 R)
• M22: 29,804,533 km (0.042 R)
• M23: 30,016,065 km (0.101 R)
• M24: 39,578,361 km (0.09 R)
• M25: 40,090,733 km (0.116 R)
• M26: 41,128,793 km (0.068 R)
• M27: 41,522,535 km (0.092 R)
• M28: 41,786,575 km (0.082 R)
• M29: 43,665,524 km (0.093 R)
• M30: 44,764,171 km (0.072 R)
• M31: 45,600,273 km (0.084 R)
• M32: 48,316,223 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 210.1

Radius: 3.3

Gravity: 19.29 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.73 AU - 11.33 AU

Year: 22416 Days

Day: 16.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,366,438 km

• M1: 41,289 km (0.082 R)
• M2: 154,385 km (0.113 R)
• M3: 259,253 km (0.113 R)
• M4: 705,504 km (0.09 R)
• M5: 1,993,392 km (0.111 R)
• M6: 3,297,735 km (0.059 R)
• M7: 3,424,894 km (0.051 R)
• M8: 5,858,701 km (0.115 R)
• M9: 6,549,993 km (0.035 R)
• M10: 10,286,948 km (0.117 R)
• M11: 12,111,294 km (0.117 R)
• M12: 12,910,147 km (0.084 R)
• M13: 14,612,421 km (0.104 R)
• M14: 16,311,105 km (0.085 R)
• M15: 17,979,869 km (0.033 R)
• M16: 22,188,655 km (0.096 R)
• M17: 28,261,581 km (0.11 R)
• M18: 35,231,047 km (0.073 R)
• M19: 45,700,803 km (0.072 R)
• M20: 52,913,964 km (0.096 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 14,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit