🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.57 AU - 0.73 AU

Year: 190 Days

Day: 31.4 Hours

Environment

Temp: 216 °C

Axial Tilt: 28.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.92 AU - 1.04 AU

Year: 351 Days

Day: 31.1 Hours

Environment

Temp: 110 °C

Axial Tilt: 33 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.26 AU - 1.8 AU

Year: 684 Days

Day: 38.5 Hours

Environment

Temp: -31 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,145,329 km

• M1: 755,320 km (0.118 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.01 AU - 2.23 AU

Year: 1116 Days

Day: 41 Hours

Environment

Temp: -77 °C

Axial Tilt: 42.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,145,329 km

• M1: 1,270,834 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.43 AU - 3.49 AU

Year: 1842 Days

Day: 31.2 Hours

Environment

Temp: -94 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.93 AU - 4.01 AU

Year: 2338 Days

Day: 21.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,145,329 km

• M1: 40,092 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.1

Radius: 8.1

Gravity: 14.53 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.43 AU - 8.71 AU

Year: 8291 Days

Day: 8 Hours

Environment

Temp: -169 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,145,329 km

• M1: 100,979 km (0.038 R)
• M2: 439,519 km (0.1 R)
• M3: 760,406 km (0.113 R)
• M4: 1,091,466 km (0.081 R)
• M5: 2,317,720 km (0.111 R)
• M6: 2,874,673 km (0.088 R)
• M7: 4,481,503 km (0.097 R)
• M8: 5,056,109 km (0.066 R)
• M9: 5,644,926 km (0.093 R)
• M10: 6,919,949 km (0.071 R)
• M11: 8,421,163 km (0.114 R)
• M12: 9,828,580 km (0.05 R)
• M13: 11,062,463 km (0.097 R)
• M14: 11,884,354 km (0.119 R)
• M15: 12,281,536 km (0.104 R)
• M16: 12,983,001 km (0.054 R)
• M17: 17,038,898 km (0.058 R)
• M18: 25,611,754 km (0.097 R)
• M19: 30,284,743 km (0.12 R)
• M20: 33,322,776 km (0.08 R)
• M21: 34,684,715 km (0.116 R)
• M22: 35,146,823 km (0.056 R)
• M23: 37,762,392 km (0.029 R)
• M24: 42,845,429 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.8

Radius: 8.7

Gravity: 11.66 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 10.66 AU - 12.02 AU

Year: 13811 Days

Day: 7.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,145,329 km

• M1: 108,309 km (0.071 R)
• M2: 387,907 km (0.032 R)
• M3: 689,347 km (0.104 R)
• M4: 1,407,866 km (0.032 R)
• M5: 1,851,872 km (0.071 R)
• M6: 2,126,683 km (0.03 R)
• M7: 3,071,394 km (0.066 R)
• M8: 4,028,222 km (0.102 R)
• M9: 4,961,563 km (0.1 R)
• M10: 5,460,771 km (0.072 R)
• M11: 6,191,407 km (0.079 R)
• M12: 7,385,048 km (0.071 R)
• M13: 7,941,104 km (0.1 R)
• M14: 8,827,022 km (0.098 R)
• M15: 10,562,507 km (0.073 R)
• M16: 12,321,629 km (0.11 R)
• M17: 13,507,042 km (0.036 R)
• M18: 15,425,186 km (0.076 R)
• M19: 18,256,176 km (0.087 R)
• M20: 22,449,853 km (0.051 R)
• M21: 26,277,913 km (0.057 R)
• M22: 26,811,978 km (0.116 R)
• M23: 29,134,335 km (0.105 R)
• M24: 30,286,089 km (0.103 R)
• M25: 31,587,740 km (0.111 R)
• M26: 36,635,771 km (0.116 R)
• M27: 38,249,034 km (0.066 R)
• M28: 41,472,419 km (0.084 R)
• M29: 42,342,181 km (0.099 R)
• M30: 50,725,197 km (0.088 R)
• M31: 63,533,468 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.5

Radius: 15

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 9.27 AU - 13.85 AU

Year: 14214 Days

Day: 13.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,145,329 km

• M1: 186,549 km (0.108 R)
• M2: 903,721 km (0.107 R)
• M3: 2,398,951 km (0.086 R)
• M4: 4,065,322 km (0.118 R)
• M5: 4,652,045 km (0.094 R)
• M6: 5,261,656 km (0.11 R)
• M7: 14,509,946 km (0.034 R)
• M8: 15,051,341 km (0.09 R)
• M9: 16,391,139 km (0.104 R)
• M10: 18,195,739 km (0.094 R)
• M11: 26,750,642 km (0.119 R)
• M12: 28,502,733 km (0.053 R)
• M13: 34,456,130 km (0.118 R)
• M14: 43,105,878 km (0.112 R)
• M15: 44,510,004 km (0.114 R)
• M16: 54,064,970 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721.8

Radius: 7.1

Gravity: 14.32 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 13.66 AU - 14.14 AU

Year: 18742 Days

Day: 17 Hours

Environment

Temp: -185 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,145,329 km

• M1: 109,655 km (0.089 R)
• M2: 338,241 km (0.117 R)
• M3: 803,939 km (0.047 R)
• M4: 1,086,679 km (0.109 R)
• M5: 1,345,334 km (0.101 R)
• M6: 2,087,788 km (0.12 R)
• M7: 2,447,421 km (0.042 R)
• M8: 3,263,478 km (0.098 R)
• M9: 4,119,925 km (0.085 R)
• M10: 4,722,057 km (0.118 R)
• M11: 6,058,863 km (0.118 R)
• M12: 7,110,237 km (0.083 R)
• M13: 8,484,892 km (0.076 R)
• M14: 9,345,379 km (0.059 R)
• M15: 9,569,327 km (0.106 R)
• M16: 10,743,521 km (0.039 R)
• M17: 12,409,592 km (0.074 R)
• M18: 14,763,066 km (0.091 R)
• M19: 15,531,251 km (0.046 R)
• M20: 16,897,827 km (0.097 R)
• M21: 17,483,204 km (0.073 R)
• M22: 17,823,689 km (0.092 R)
• M23: 18,430,308 km (0.096 R)
• M24: 19,684,537 km (0.11 R)
• M25: 24,100,815 km (0.083 R)
• M26: 24,949,484 km (0.111 R)
• M27: 37,439,560 km (0.085 R)
• M28: 44,612,179 km (0.108 R)
• M29: 45,248,270 km (0.108 R)
• M30: 46,213,625 km (0.109 R)
• M31: 52,472,351 km (0.096 R)
• M32: 53,716,706 km (0.057 R)
• M33: 57,193,360 km (0.106 R)
• M34: 59,849,022 km (0.106 R)
• M35: 63,984,804 km (0.117 R)
• M36: 68,940,234 km (0.108 R)
• M37: 71,511,073 km (0.115 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 14,141 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit