🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.49 AU - 0.57 AU

Year: 147 Days

Day: 46.6 Hours

Environment

Temp: 213 °C

Axial Tilt: 17 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.52 AU - 0.78 AU

Year: 200 Days

Day: 46.9 Hours

Environment

Temp: 167 °C

Axial Tilt: 34.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.27 AU - 2.59 AU

Year: 1442 Days

Day: 32.2 Hours

Environment

Temp: -91 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,117,759 km

• M1: 28,573 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.32 AU - 4.48 AU

Year: 2933 Days

Day: 39 Hours

Environment

Temp: -139 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.9

Radius: 11.9

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.15 AU - 5.33 AU

Year: 4568 Days

Day: 9.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,117,759 km

• M1: 151,393 km (0.084 R)
• M2: 657,632 km (0.093 R)
• M3: 1,069,026 km (0.081 R)
• M4: 1,464,862 km (0.106 R)
• M5: 2,439,193 km (0.11 R)
• M6: 3,761,489 km (0.07 R)
• M7: 5,136,892 km (0.069 R)
• M8: 5,597,653 km (0.106 R)
• M9: 6,026,849 km (0.077 R)
• M10: 11,756,747 km (0.103 R)
• M11: 12,705,347 km (0.059 R)
• M12: 13,806,836 km (0.106 R)
• M13: 16,720,853 km (0.087 R)
• M14: 20,354,735 km (0.067 R)
• M15: 24,788,218 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.6

Radius: 10.1

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.38 AU - 6.86 AU

Year: 5073 Days

Day: 8.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,117,759 km

• M1: 125,812 km (0.107 R)
• M2: 518,207 km (0.097 R)
• M3: 968,197 km (0.12 R)
• M4: 1,311,076 km (0.107 R)
• M5: 2,017,477 km (0.105 R)
• M6: 2,709,217 km (0.115 R)
• M7: 4,660,572 km (0.111 R)
• M8: 5,778,367 km (0.114 R)
• M9: 7,338,374 km (0.057 R)
• M10: 8,460,059 km (0.062 R)
• M11: 10,373,565 km (0.117 R)
• M12: 14,813,630 km (0.068 R)
• M13: 18,200,376 km (0.073 R)
• M14: 19,568,449 km (0.106 R)
• M15: 21,568,722 km (0.071 R)
• M16: 23,249,304 km (0.05 R)
• M17: 26,869,423 km (0.103 R)
• M18: 27,200,932 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 931.3

Radius: 7.5

Gravity: 16.56 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 9.47 AU - 14.95 AU

Year: 16247 Days

Day: 19.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 90,117,759 km

• M1: 93,349 km (0.106 R)
• M2: 459,714 km (0.117 R)
• M3: 1,119,142 km (0.093 R)
• M4: 1,650,962 km (0.082 R)
• M5: 2,775,340 km (0.085 R)
• M6: 3,775,701 km (0.102 R)
• M7: 6,861,456 km (0.104 R)
• M8: 7,800,332 km (0.05 R)
• M9: 8,454,823 km (0.113 R)
• M10: 9,365,275 km (0.119 R)
• M11: 11,316,630 km (0.074 R)
• M12: 12,353,942 km (0.08 R)
• M13: 16,404,155 km (0.112 R)
• M14: 17,224,998 km (0.095 R)
• M15: 19,578,023 km (0.117 R)
• M16: 20,128,543 km (0.092 R)
• M17: 22,038,459 km (0.064 R)
• M18: 22,734,538 km (0.092 R)
• M19: 23,445,128 km (0.11 R)
• M20: 25,125,112 km (0.097 R)
• M21: 25,666,058 km (0.096 R)
• M22: 26,214,783 km (0.111 R)
• M23: 30,766,896 km (0.078 R)
• M24: 33,164,202 km (0.105 R)
• M25: 36,781,180 km (0.114 R)
• M26: 39,043,997 km (0.112 R)
• M27: 59,237,166 km (0.092 R)
• M28: 66,778,844 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.4

Radius: 6.6

Gravity: 18.26 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 9.98 AU - 16.1 AU

Year: 17931 Days

Day: 23.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 90,117,759 km

• M1: 82,728 km (0.09 R)
• M2: 308,471 km (0.105 R)
• M3: 616,044 km (0.112 R)
• M4: 851,661 km (0.072 R)
• M5: 2,631,875 km (0.112 R)
• M6: 4,800,296 km (0.05 R)
• M7: 5,664,224 km (0.066 R)
• M8: 6,539,671 km (0.097 R)
• M9: 8,451,681 km (0.037 R)
• M10: 9,200,718 km (0.112 R)
• M11: 9,819,604 km (0.106 R)
• M12: 11,648,737 km (0.057 R)
• M13: 13,056,753 km (0.116 R)
• M14: 13,983,212 km (0.116 R)
• M15: 14,499,774 km (0.053 R)
• M16: 14,725,068 km (0.105 R)
• M17: 15,807,409 km (0.099 R)
• M18: 17,444,159 km (0.119 R)
• M19: 18,042,850 km (0.12 R)
• M20: 20,106,403 km (0.081 R)
• M21: 21,050,814 km (0.117 R)
• M22: 22,723,617 km (0.093 R)
• M23: 28,387,842 km (0.063 R)
• M24: 29,096,487 km (0.083 R)
• M25: 31,043,653 km (0.053 R)
• M26: 32,559,827 km (0.111 R)
• M27: 33,597,587 km (0.12 R)
• M28: 40,144,140 km (0.032 R)
• M29: 43,481,070 km (0.084 R)
• M30: 45,698,110 km (0.084 R)
• M31: 54,592,601 km (0.079 R)
• M32: 56,240,572 km (0.096 R)
• M33: 56,611,275 km (0.077 R)
• M34: 64,371,515 km (0.077 R)
• M35: 69,351,927 km (0.035 R)
• M36: 70,636,075 km (0.077 R)
• M37: 72,154,045 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.4

Radius: 7.8

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 15.38 AU - 17.44 AU

Year: 25314 Days

Day: 17.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 90,117,759 km

• M1: 96,939 km (0.102 R)
• M2: 872,604 km (0.105 R)
• M3: 1,470,098 km (0.047 R)
• M4: 2,315,326 km (0.114 R)
• M5: 2,651,173 km (0.053 R)
• M6: 3,604,112 km (0.101 R)
• M7: 4,402,815 km (0.107 R)
• M8: 4,693,932 km (0.07 R)
• M9: 6,121,545 km (0.043 R)
• M10: 7,105,450 km (0.092 R)
• M11: 7,558,133 km (0.051 R)
• M12: 7,923,302 km (0.078 R)
• M13: 8,409,943 km (0.107 R)
• M14: 11,215,053 km (0.064 R)
• M15: 13,048,973 km (0.066 R)
• M16: 16,680,611 km (0.086 R)
• M17: 18,585,441 km (0.066 R)
• M18: 18,868,779 km (0.059 R)
• M19: 21,036,602 km (0.116 R)
• M20: 22,713,744 km (0.072 R)
• M21: 23,474,898 km (0.118 R)
• M22: 25,047,919 km (0.094 R)
• M23: 33,557,196 km (0.056 R)
• M24: 34,260,156 km (0.055 R)
• M25: 35,987,264 km (0.062 R)
• M26: 36,723,734 km (0.111 R)
• M27: 39,302,801 km (0.079 R)
• M28: 46,534,213 km (0.106 R)
• M29: 49,369,242 km (0.111 R)
• M30: 65,503,672 km (0.091 R)
• M31: 70,883,061 km (0.096 R)
• M32: 77,035,124 km (0.087 R)
• M33: 78,257,638 km (0.05 R)
• M34: 79,244,834 km (0.105 R)
• M35: 87,709,082 km (0.03 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: 310 - 18,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit