🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.82 AU - 1.3 AU

Year: 470 Days

Day: 15.8 Hours

Environment

Temp: -70 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.83 AU - 1.33 AU

Year: 483 Days

Day: 28.4 Hours

Environment

Temp: -53 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.78 AU - 2.44 AU

Year: 1319 Days

Day: 41.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.09 AU - 2.67 AU

Year: 1580 Days

Day: 47.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.5

Radius: 14

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.18 AU - 5.18 AU

Year: 5075 Days

Day: 8.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,819,506 km

• M1: 180,116 km (0.05 R)
• M2: 735,124 km (0.11 R)
• M3: 1,415,345 km (0.056 R)
• M4: 2,110,976 km (0.048 R)
• M5: 2,581,610 km (0.062 R)
• M6: 3,319,726 km (0.11 R)
• M7: 3,805,471 km (0.112 R)
• M8: 5,002,254 km (0.119 R)
• M9: 5,557,710 km (0.112 R)
• M10: 6,341,454 km (0.098 R)
• M11: 9,889,167 km (0.116 R)
• M12: 10,813,084 km (0.117 R)
• M13: 11,697,955 km (0.119 R)
• M14: 12,782,240 km (0.065 R)
• M15: 13,559,252 km (0.078 R)
• M16: 14,422,581 km (0.059 R)
• M17: 15,610,987 km (0.113 R)
• M18: 18,636,753 km (0.102 R)
• M19: 20,812,056 km (0.075 R)
• M20: 21,669,850 km (0.118 R)
• M21: 22,775,229 km (0.118 R)
• M22: 24,700,404 km (0.064 R)
• M23: 25,988,142 km (0.108 R)
• M24: 26,565,440 km (0.113 R)
• M25: 28,089,394 km (0.068 R)
• M26: 28,609,994 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.1

Radius: 9.9

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.59 AU - 7.17 AU

Year: 6937 Days

Day: 5.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,819,506 km

• M1: 128,355 km (0.111 R)
• M2: 445,203 km (0.105 R)
• M3: 1,122,283 km (0.1 R)
• M4: 2,221,379 km (0.038 R)
• M5: 3,073,039 km (0.106 R)
• M6: 4,081,030 km (0.113 R)
• M7: 4,389,501 km (0.085 R)
• M8: 4,801,643 km (0.103 R)
• M9: 6,804,160 km (0.115 R)
• M10: 8,090,851 km (0.071 R)
• M11: 9,007,288 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.5

Radius: 14.6

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.86 AU - 9.18 AU

Year: 10705 Days

Day: 7.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,819,506 km

• M1: 189,092 km (0.033 R)
• M2: 772,823 km (0.083 R)
• M3: 1,301,950 km (0.119 R)
• M4: 1,858,454 km (0.105 R)
• M5: 2,636,662 km (0.057 R)
• M6: 3,173,868 km (0.108 R)
• M7: 4,004,585 km (0.107 R)
• M8: 5,311,024 km (0.096 R)
• M9: 6,214,296 km (0.099 R)
• M10: 7,302,620 km (0.06 R)
• M11: 8,280,541 km (0.063 R)
• M12: 10,551,287 km (0.089 R)
• M13: 11,335,779 km (0.092 R)
• M14: 11,860,418 km (0.055 R)
• M15: 12,646,705 km (0.095 R)
• M16: 13,147,858 km (0.078 R)
• M17: 13,792,774 km (0.117 R)
• M18: 14,937,647 km (0.081 R)
• M19: 19,241,877 km (0.096 R)
• M20: 22,623,836 km (0.111 R)
• M21: 30,430,152 km (0.084 R)
• M22: 34,507,292 km (0.095 R)
• M23: 37,121,066 km (0.118 R)
• M24: 43,586,686 km (0.101 R)
• M25: 46,193,130 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.8

Radius: 3.7

Gravity: 59.74 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 11.58 AU - 11.98 AU

Year: 17404 Days

Day: 19.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,819,506 km

• M1: 46,226 km (0.07 R)
• M2: 274,811 km (0.115 R)
• M3: 407,205 km (0.09 R)
• M4: 917,484 km (0.056 R)
• M5: 1,153,998 km (0.06 R)
• M6: 1,558,511 km (0.081 R)
• M7: 1,712,447 km (0.11 R)
• M8: 3,118,068 km (0.102 R)
• M9: 4,374,092 km (0.057 R)
• M10: 4,681,516 km (0.116 R)
• M11: 5,851,222 km (0.113 R)
• M12: 5,973,742 km (0.09 R)
• M13: 6,309,290 km (0.115 R)
• M14: 7,017,636 km (0.109 R)
• M15: 7,925,994 km (0.12 R)
• M16: 9,181,719 km (0.099 R)
• M17: 18,431,056 km (0.043 R)
• M18: 18,961,381 km (0.104 R)
• M19: 20,145,148 km (0.056 R)
• M20: 20,425,046 km (0.118 R)
• M21: 22,558,461 km (0.096 R)
• M22: 25,809,821 km (0.091 R)
• M23: 26,921,782 km (0.105 R)
• M24: 30,694,192 km (0.061 R)
• M25: 30,817,311 km (0.108 R)
• M26: 37,550,412 km (0.112 R)
• M27: 40,290,147 km (0.116 R)
• M28: 45,840,677 km (0.067 R)
• M29: 46,812,764 km (0.069 R)
• M30: 49,471,866 km (0.061 R)
• M31: 51,357,248 km (0.112 R)
• M32: 55,636,047 km (0.082 R)
• M33: 59,953,740 km (0.099 R)
• M34: 62,886,607 km (0.093 R)
• M35: 65,504,719 km (0.115 R)
• M36: 67,567,225 km (0.092 R)
• M37: 69,036,575 km (0.092 R)
• M38: 73,351,875 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.6

Radius: 3.5

Gravity: 44.54 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 11.11 AU - 16.31 AU

Year: 21851 Days

Day: 18 Hours

Environment

Temp: -197 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,819,506 km

• M1: 43,533 km (0.099 R)
• M2: 311,313 km (0.085 R)
• M3: 669,002 km (0.077 R)
• M4: 906,713 km (0.111 R)
• M5: 1,156,691 km (0.054 R)
• M6: 1,867,281 km (0.102 R)
• M7: 2,144,336 km (0.111 R)
• M8: 5,349,470 km (0.073 R)
• M9: 7,040,824 km (0.103 R)
• M10: 16,195,166 km (0.103 R)
• M11: 20,960,307 km (0.116 R)
• M12: 23,659,352 km (0.104 R)
• M13: 29,013,310 km (0.061 R)
• M14: 31,842,655 km (0.107 R)
• M15: 33,258,599 km (0.098 R)
• M16: 35,392,313 km (0.107 R)
• M17: 40,077,569 km (0.116 R)
• M18: 43,576,813 km (0.119 R)
• M19: 58,651,192 km (0.075 R)
• M20: 67,868,216 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 12,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit