🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 12.1

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.84 AU - 0.94 AU

Year: 534 Days

Day: 12.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,031,100 km

• M1: 150,495 km (0.063 R)
• M2: 844,031 km (0.111 R)
• M3: 1,459,327 km (0.08 R)
• M4: 2,272,990 km (0.109 R)
• M5: 2,723,728 km (0.12 R)
• M6: 3,357,425 km (0.045 R)
• M7: 3,795,896 km (0.12 R)
• M8: 4,449,340 km (0.111 R)
• M9: 5,315,512 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.2

Radius: 9.3

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.13 AU - 1.45 AU

Year: 932 Days

Day: 11.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,031,100 km

• M1: 115,639 km (0.102 R)
• M2: 701,913 km (0.106 R)
• M3: 1,075,609 km (0.117 R)
• M4: 1,526,048 km (0.087 R)
• M5: 1,854,266 km (0.079 R)
• M6: 3,745,183 km (0.098 R)
• M7: 4,047,370 km (0.062 R)
• M8: 4,481,503 km (0.082 R)
• M9: 4,893,197 km (0.059 R)
• M10: 5,519,713 km (0.081 R)
• M11: 5,932,752 km (0.077 R)
• M12: 6,710,661 km (0.098 R)
• M13: 8,391,693 km (0.113 R)
• M14: 8,780,049 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.8

Radius: 9.4

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.19 AU - 1.43 AU

Year: 953 Days

Day: 8 Hours

Environment

Temp: -165 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,031,100 km

• M1: 117,135 km (0.057 R)
• M2: 686,654 km (0.082 R)
• M3: 1,259,464 km (0.058 R)
• M4: 2,507,859 km (0.102 R)
• M5: 3,197,654 km (0.069 R)
• M6: 5,901,935 km (0.116 R)
• M7: 6,743,124 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.5

Radius: 13.9

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.8 AU - 4.5 AU

Year: 5375 Days

Day: 6.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,031,100 km

• M1: 175,329 km (0.062 R)
• M2: 657,931 km (0.111 R)
• M3: 1,305,241 km (0.11 R)
• M4: 2,010,595 km (0.115 R)
• M5: 4,564,231 km (0.061 R)
• M6: 5,375,799 km (0.109 R)
• M7: 8,236,560 km (0.089 R)
• M8: 9,163,618 km (0.116 R)
• M9: 13,269,630 km (0.06 R)
• M10: 15,897,467 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.6

Radius: 13.9

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.18 AU - 5.22 AU

Year: 5473 Days

Day: 6.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,031,100 km

• M1: 173,833 km (0.096 R)
• M2: 778,507 km (0.119 R)
• M3: 1,468,303 km (0.117 R)
• M4: 2,600,310 km (0.111 R)
• M5: 3,889,245 km (0.113 R)
• M6: 5,216,478 km (0.058 R)
• M7: 7,107,096 km (0.079 R)
• M8: 9,505,748 km (0.114 R)
• M9: 14,768,601 km (0.03 R)
• M10: 15,904,647 km (0.047 R)
• M11: 18,418,191 km (0.117 R)
• M12: 19,242,176 km (0.038 R)
• M13: 19,804,963 km (0.073 R)
• M14: 29,345,717 km (0.118 R)
• M15: 31,138,946 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.8

Radius: 13.5

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.85 AU - 6.39 AU

Year: 7366 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,031,100 km

• M1: 168,896 km (0.087 R)
• M2: 632,949 km (0.077 R)
• M3: 1,221,766 km (0.081 R)
• M4: 1,658,741 km (0.05 R)
• M5: 2,078,662 km (0.082 R)
• M6: 3,059,875 km (0.063 R)
• M7: 3,633,882 km (0.108 R)
• M8: 5,257,767 km (0.115 R)
• M9: 5,769,541 km (0.114 R)
• M10: 7,433,518 km (0.105 R)
• M11: 9,226,000 km (0.116 R)
• M12: 14,214,790 km (0.093 R)
• M13: 15,453,610 km (0.084 R)
• M14: 16,318,585 km (0.039 R)
• M15: 17,676,335 km (0.113 R)
• M16: 18,968,561 km (0.103 R)
• M17: 20,986,487 km (0.088 R)
• M18: 28,167,035 km (0.029 R)
• M19: 30,117,642 km (0.089 R)
• M20: 30,787,391 km (0.092 R)
• M21: 32,555,339 km (0.041 R)
• M22: 35,016,673 km (0.049 R)
• M23: 35,544,753 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.1

Radius: 6.4

Gravity: 20.88 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 9.02 AU - 10.22 AU

Year: 18971 Days

Day: 18.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,031,100 km

• M1: 79,586 km (0.075 R)
• M2: 305,778 km (0.069 R)
• M3: 683,662 km (0.072 R)
• M4: 920,924 km (0.085 R)
• M5: 1,131,409 km (0.107 R)
• M6: 1,516,922 km (0.058 R)
• M7: 2,255,936 km (0.047 R)
• M8: 2,668,676 km (0.106 R)
• M9: 4,213,125 km (0.099 R)
• M10: 5,251,035 km (0.099 R)
• M11: 6,317,967 km (0.068 R)
• M12: 13,153,991 km (0.028 R)
• M13: 13,369,412 km (0.085 R)
• M14: 17,232,029 km (0.116 R)
• M15: 22,283,351 km (0.069 R)
• M16: 24,705,490 km (0.09 R)
• M17: 28,599,074 km (0.116 R)
• M18: 29,448,640 km (0.061 R)
• M19: 29,817,698 km (0.077 R)
• M20: 33,815,103 km (0.075 R)
• M21: 35,592,625 km (0.054 R)
• M22: 39,036,368 km (0.076 R)
• M23: 39,780,767 km (0.05 R)
• M24: 51,041,298 km (0.111 R)
• M25: 51,573,866 km (0.096 R)
• M26: 54,662,763 km (0.118 R)
• M27: 58,840,283 km (0.067 R)
• M28: 62,412,680 km (0.104 R)
• M29: 63,429,946 km (0.102 R)
• M30: 76,051,668 km (0.076 R)
• M31: 79,093,292 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.9

Radius: 7.1

Gravity: 9.86 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 7.62 AU - 11.92 AU

Year: 19417 Days

Day: 18.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 67,031,100 km

• M1: 88,263 km (0.092 R)
• M2: 328,068 km (0.113 R)
• M3: 699,370 km (0.083 R)
• M4: 957,127 km (0.088 R)
• M5: 1,621,641 km (0.092 R)
• M6: 2,006,407 km (0.117 R)
• M7: 2,261,321 km (0.1 R)
• M8: 2,742,727 km (0.048 R)
• M9: 4,151,640 km (0.096 R)
• M10: 6,862,503 km (0.085 R)
• M11: 7,445,486 km (0.108 R)
• M12: 7,772,806 km (0.032 R)
• M13: 10,806,053 km (0.072 R)
• M14: 12,550,962 km (0.057 R)
• M15: 14,403,881 km (0.084 R)
• M16: 14,693,054 km (0.079 R)
• M17: 15,583,909 km (0.062 R)
• M18: 15,965,534 km (0.105 R)
• M19: 18,472,495 km (0.057 R)
• M20: 18,728,157 km (0.117 R)
• M21: 18,986,214 km (0.117 R)
• M22: 30,412,350 km (0.106 R)
• M23: 33,471,177 km (0.042 R)
• M24: 35,270,690 km (0.099 R)
• M25: 40,049,594 km (0.079 R)
• M26: 40,910,081 km (0.111 R)
• M27: 41,490,371 km (0.104 R)
• M28: 42,816,407 km (0.093 R)
• M29: 44,322,558 km (0.102 R)
• M30: 45,552,552 km (0.093 R)
• M31: 46,963,409 km (0.074 R)
• M32: 48,403,139 km (0.072 R)
• M33: 51,370,562 km (0.093 R)
• M34: 53,587,603 km (0.096 R)
• M35: 54,282,335 km (0.095 R)
• M36: 57,483,431 km (0.1 R)
• M37: 62,325,914 km (0.043 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 197 - 11,954 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit