🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.51 AU - 0.51 AU

Year: 232 Days

Day: 37.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,489,166 km

• M1: 367,412 km (0.084 R)
• M2: 624,870 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.3

Radius: 8.9

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.78 AU - 1.02 AU

Year: 543 Days

Day: 11.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,489,166 km

• M1: 110,702 km (0.072 R)
• M2: 394,190 km (0.072 R)
• M3: 861,833 km (0.087 R)
• M4: 1,277,715 km (0.12 R)
• M5: 1,564,046 km (0.104 R)
• M6: 1,901,539 km (0.108 R)
• M7: 2,190,861 km (0.118 R)
• M8: 2,547,951 km (0.061 R)
• M9: 2,859,414 km (0.099 R)
• M10: 3,185,088 km (0.118 R)
• M11: 3,633,134 km (0.11 R)
• M12: 4,149,695 km (0.09 R)
• M13: 4,454,277 km (0.059 R)
• M14: 4,758,858 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.7

Radius: 14.3

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.28 AU - 1.4 AU

Year: 986 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,489,166 km

• M1: 177,872 km (0.055 R)
• M2: 784,342 km (0.044 R)
• M3: 1,407,566 km (0.089 R)
• M4: 2,244,566 km (0.079 R)
• M5: 2,806,456 km (0.062 R)
• M6: 3,301,924 km (0.1 R)
• M7: 3,769,268 km (0.043 R)
• M8: 4,636,487 km (0.102 R)
• M9: 5,243,705 km (0.053 R)
• M10: 6,555,079 km (0.098 R)
• M11: 7,097,073 km (0.059 R)
• M12: 7,906,247 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.4

Radius: 11.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.07 AU - 1.69 AU

Year: 1031 Days

Day: 9 Hours

Environment

Temp: -184 °C

Axial Tilt: 157.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,489,166 km

• M1: 148,102 km (0.027 R)
• M2: 687,253 km (0.119 R)
• M3: 1,065,436 km (0.09 R)
• M4: 1,441,226 km (0.11 R)
• M5: 1,889,272 km (0.087 R)
• M6: 2,984,029 km (0.104 R)
• M7: 3,708,232 km (0.117 R)
• M8: 4,395,634 km (0.059 R)
• M9: 5,545,294 km (0.093 R)
• M10: 6,359,705 km (0.085 R)
• M11: 7,511,758 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.1

Radius: 14.2

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.31 AU - 3.57 AU

Year: 4057 Days

Day: 5.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,489,166 km

• M1: 176,675 km (0.104 R)
• M2: 677,828 km (0.08 R)
• M3: 1,169,107 km (0.074 R)
• M4: 1,792,182 km (0.106 R)
• M5: 2,316,224 km (0.116 R)
• M6: 2,854,327 km (0.1 R)
• M7: 3,745,033 km (0.118 R)
• M8: 4,420,916 km (0.037 R)
• M9: 5,019,308 km (0.115 R)
• M10: 5,959,530 km (0.062 R)
• M11: 6,565,551 km (0.111 R)
• M12: 7,046,957 km (0.093 R)
• M13: 8,263,038 km (0.082 R)
• M14: 11,198,747 km (0.112 R)
• M15: 11,794,895 km (0.066 R)
• M16: 14,989,407 km (0.059 R)
• M17: 15,827,604 km (0.106 R)
• M18: 16,403,706 km (0.097 R)
• M19: 19,366,043 km (0.099 R)
• M20: 21,180,665 km (0.117 R)
• M21: 22,741,270 km (0.106 R)
• M22: 23,549,697 km (0.1 R)
• M23: 24,759,644 km (0.09 R)
• M24: 27,633,419 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.2

Radius: 10.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.19 AU - 4.13 AU

Year: 4452 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,489,166 km

• M1: 156,031 km (0.102 R)
• M2: 509,082 km (0.096 R)
• M3: 847,173 km (0.081 R)
• M4: 1,264,551 km (0.052 R)
• M5: 1,768,845 km (0.047 R)
• M6: 3,308,507 km (0.116 R)
• M7: 3,661,707 km (0.09 R)
• M8: 4,184,103 km (0.095 R)
• M9: 5,335,408 km (0.041 R)
• M10: 7,882,611 km (0.115 R)
• M11: 8,546,526 km (0.093 R)
• M12: 10,386,730 km (0.111 R)
• M13: 11,763,928 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.8

Radius: 6.3

Gravity: 24.03 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 6.96 AU - 7.54 AU

Year: 12412 Days

Day: 17.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 82,489,166 km

• M1: 78,389 km (0.091 R)
• M2: 274,512 km (0.117 R)
• M3: 536,159 km (0.041 R)
• M4: 839,394 km (0.096 R)
• M5: 1,227,301 km (0.102 R)
• M6: 3,308,207 km (0.069 R)
• M7: 4,302,435 km (0.073 R)
• M8: 4,523,092 km (0.089 R)
• M9: 5,055,959 km (0.097 R)
• M10: 5,337,652 km (0.078 R)
• M11: 5,666,917 km (0.06 R)
• M12: 8,076,939 km (0.057 R)
• M13: 9,746,301 km (0.042 R)
• M14: 9,963,069 km (0.029 R)
• M15: 10,462,725 km (0.119 R)
• M16: 11,392,177 km (0.093 R)
• M17: 13,083,531 km (0.075 R)
• M18: 15,961,494 km (0.086 R)
• M19: 16,187,387 km (0.068 R)
• M20: 21,345,971 km (0.059 R)
• M21: 30,983,215 km (0.079 R)
• M22: 34,746,200 km (0.042 R)
• M23: 37,461,551 km (0.069 R)
• M24: 39,074,964 km (0.095 R)
• M25: 43,749,897 km (0.086 R)
• M26: 45,538,190 km (0.116 R)
• M27: 45,992,818 km (0.059 R)
• M28: 51,031,873 km (0.096 R)
• M29: 57,302,417 km (0.092 R)
• M30: 57,655,319 km (0.079 R)
• M31: 60,530,590 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.3

Radius: 6.4

Gravity: 24.2 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8 AU - 10.24 AU

Year: 17512 Days

Day: 21.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,489,166 km

• M1: 79,586 km (0.075 R)
• M2: 350,508 km (0.102 R)
• M3: 569,818 km (0.089 R)
• M4: 1,415,345 km (0.112 R)
• M5: 1,663,080 km (0.101 R)
• M6: 2,378,756 km (0.119 R)
• M7: 3,906,000 km (0.066 R)
• M8: 5,153,647 km (0.073 R)
• M9: 6,162,983 km (0.073 R)
• M10: 12,888,006 km (0.089 R)
• M11: 14,047,240 km (0.095 R)
• M12: 14,575,769 km (0.086 R)
• M13: 18,116,901 km (0.105 R)
• M14: 19,943,640 km (0.061 R)
• M15: 20,323,170 km (0.112 R)
• M16: 21,391,897 km (0.092 R)
• M17: 22,805,447 km (0.072 R)
• M18: 26,954,544 km (0.068 R)
• M19: 28,482,088 km (0.087 R)
• M20: 29,695,626 km (0.096 R)
• M21: 30,817,012 km (0.081 R)
• M22: 35,585,593 km (0.11 R)
• M23: 44,264,963 km (0.114 R)
• M24: 45,891,241 km (0.119 R)
• M25: 47,220,568 km (0.055 R)
• M26: 52,434,652 km (0.062 R)
• M27: 53,339,420 km (0.059 R)
• M28: 56,493,392 km (0.063 R)
• M29: 59,966,007 km (0.087 R)
• M30: 68,401,682 km (0.119 R)
• M31: 73,238,181 km (0.103 R)
• M32: 75,969,987 km (0.118 R)
• M33: 78,768,964 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.6

Radius: 7.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.67 AU - 11.87 AU

Year: 19417 Days

Day: 23.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,489,166 km

• M1: 92,003 km (0.11 R)
• M2: 353,350 km (0.118 R)
• M3: 684,709 km (0.09 R)
• M4: 1,015,620 km (0.116 R)
• M5: 1,318,705 km (0.093 R)
• M6: 1,806,394 km (0.036 R)
• M7: 2,074,922 km (0.057 R)
• M8: 2,312,633 km (0.095 R)
• M9: 2,609,585 km (0.109 R)
• M10: 7,736,903 km (0.117 R)
• M11: 8,635,537 km (0.085 R)
• M12: 9,956,486 km (0.087 R)
• M13: 10,267,351 km (0.108 R)
• M14: 12,389,696 km (0.067 R)
• M15: 13,553,268 km (0.113 R)
• M16: 15,536,337 km (0.059 R)
• M17: 19,660,601 km (0.097 R)
• M18: 22,991,547 km (0.088 R)
• M19: 23,626,740 km (0.085 R)
• M20: 29,559,941 km (0.106 R)
• M21: 34,492,931 km (0.03 R)
• M22: 40,733,705 km (0.099 R)
• M23: 43,427,215 km (0.115 R)
• M24: 49,917,518 km (0.1 R)
• M25: 50,828,869 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.8

Radius: 4.1

Gravity: 34.13 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 10.58 AU - 12.34 AU

Year: 24667 Days

Day: 20.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,489,166 km

• M1: 51,761 km (0.069 R)
• M2: 208,240 km (0.119 R)
• M3: 1,567,786 km (0.095 R)
• M4: 1,979,479 km (0.054 R)
• M5: 2,702,037 km (0.112 R)
• M6: 3,291,153 km (0.115 R)
• M7: 4,941,068 km (0.103 R)
• M8: 8,286,376 km (0.053 R)
• M9: 11,115,720 km (0.12 R)
• M10: 15,157,855 km (0.083 R)
• M11: 18,762,864 km (0.115 R)
• M12: 19,984,929 km (0.091 R)
• M13: 23,967,823 km (0.069 R)
• M14: 25,292,063 km (0.076 R)
• M15: 27,606,342 km (0.117 R)
• M16: 30,692,846 km (0.092 R)
• M17: 31,078,060 km (0.026 R)
• M18: 44,187,321 km (0.077 R)
• M19: 46,678,724 km (0.097 R)
• M20: 48,738,089 km (0.109 R)
• M21: 54,711,980 km (0.112 R)
• M22: 56,039,063 km (0.098 R)
• M23: 68,960,878 km (0.112 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 14,028 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit