🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.99 AU - 1.15 AU

Year: 498 Days

Day: 16 Hours

Environment

Temp: -82 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.32 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.3

Radius: 13.5

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.35 AU - 3.77 AU

Year: 3020 Days

Day: 14.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,502,271 km

• M1: 168,597 km (0.1 R)
• M2: 652,546 km (0.119 R)
• M3: 1,103,733 km (0.106 R)
• M4: 1,532,032 km (0.113 R)
• M5: 2,040,365 km (0.065 R)
• M6: 2,475,546 km (0.077 R)
• M7: 3,169,380 km (0.061 R)
• M8: 4,700,365 km (0.106 R)
• M9: 5,886,975 km (0.106 R)
• M10: 7,020,927 km (0.04 R)
• M11: 7,854,636 km (0.094 R)
• M12: 9,653,102 km (0.108 R)
• M13: 10,332,875 km (0.12 R)
• M14: 10,755,788 km (0.053 R)
• M15: 11,712,167 km (0.109 R)
• M16: 13,625,972 km (0.104 R)
• M17: 14,178,437 km (0.109 R)
• M18: 15,057,474 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.5

Radius: 8.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.35 AU - 5.21 AU

Year: 4699 Days

Day: 14.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,502,271 km

• M1: 100,679 km (0.117 R)
• M2: 418,575 km (0.043 R)
• M3: 674,686 km (0.089 R)
• M4: 1,116,299 km (0.102 R)
• M5: 2,016,280 km (0.078 R)
• M6: 2,802,866 km (0.064 R)
• M7: 3,796,196 km (0.081 R)
• M8: 6,291,937 km (0.111 R)
• M9: 7,648,341 km (0.096 R)
• M10: 10,792,290 km (0.099 R)
• M11: 12,275,552 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.4

Radius: 14.8

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.74 AU - 6.76 AU

Year: 7025 Days

Day: 14 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,502,271 km

• M1: 184,454 km (0.103 R)
• M2: 723,754 km (0.09 R)
• M3: 1,218,624 km (0.066 R)
• M4: 1,961,826 km (0.092 R)
• M5: 2,610,782 km (0.076 R)
• M6: 3,185,088 km (0.108 R)
• M7: 3,744,136 km (0.101 R)
• M8: 4,479,259 km (0.105 R)
• M9: 5,135,396 km (0.069 R)
• M10: 6,878,809 km (0.035 R)
• M11: 7,625,452 km (0.106 R)
• M12: 9,244,550 km (0.106 R)
• M13: 9,845,036 km (0.108 R)
• M14: 12,022,732 km (0.064 R)
• M15: 13,722,463 km (0.061 R)
• M16: 16,483,890 km (0.109 R)
• M17: 16,977,862 km (0.082 R)
• M18: 17,765,794 km (0.109 R)
• M19: 21,292,863 km (0.12 R)
• M20: 22,143,327 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.5

Radius: 10.7

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.75 AU - 11.25 AU

Year: 12139 Days

Day: 6.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,502,271 km

• M1: 158,424 km (0.082 R)
• M2: 627,563 km (0.11 R)
• M3: 1,139,637 km (0.084 R)
• M4: 1,868,926 km (0.05 R)
• M5: 2,511,898 km (0.072 R)
• M6: 2,932,118 km (0.115 R)
• M7: 3,373,282 km (0.075 R)
• M8: 4,001,444 km (0.059 R)
• M9: 4,452,033 km (0.057 R)
• M10: 5,348,722 km (0.116 R)
• M11: 6,126,182 km (0.042 R)
• M12: 7,191,170 km (0.114 R)
• M13: 8,617,286 km (0.081 R)
• M14: 11,717,702 km (0.094 R)
• M15: 13,750,288 km (0.114 R)
• M16: 21,065,325 km (0.084 R)
• M17: 22,339,151 km (0.062 R)
• M18: 24,542,129 km (0.057 R)
• M19: 25,139,922 km (0.052 R)
• M20: 27,202,727 km (0.084 R)
• M21: 32,849,299 km (0.071 R)
• M22: 33,453,674 km (0.074 R)
• M23: 34,934,394 km (0.089 R)
• M24: 36,073,283 km (0.042 R)
• M25: 37,106,256 km (0.088 R)
• M26: 38,961,120 km (0.102 R)
• M27: 40,185,728 km (0.096 R)
• M28: 44,748,164 km (0.049 R)
• M29: 48,857,019 km (0.099 R)
• M30: 49,961,949 km (0.077 R)
• M31: 50,600,732 km (0.088 R)
• M32: 53,045,011 km (0.079 R)
• M33: 55,226,148 km (0.116 R)
• M34: 55,566,932 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795

Radius: 6.6

Gravity: 18.25 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 8.02 AU - 11.88 AU

Year: 14111 Days

Day: 23.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,502,271 km

• M1: 82,129 km (0.109 R)
• M2: 482,752 km (0.114 R)
• M3: 903,422 km (0.082 R)
• M4: 1,341,743 km (0.093 R)
• M5: 1,842,747 km (0.055 R)
• M6: 2,335,971 km (0.083 R)
• M7: 2,547,652 km (0.077 R)
• M8: 3,287,862 km (0.08 R)
• M9: 4,704,404 km (0.115 R)
• M10: 5,621,738 km (0.079 R)
• M11: 6,486,564 km (0.088 R)
• M12: 7,257,890 km (0.111 R)
• M13: 10,727,215 km (0.063 R)
• M14: 15,682,345 km (0.086 R)
• M15: 16,058,583 km (0.109 R)
• M16: 16,363,913 km (0.094 R)
• M17: 18,277,569 km (0.065 R)
• M18: 19,894,572 km (0.063 R)
• M19: 20,424,448 km (0.109 R)
• M20: 21,236,914 km (0.083 R)
• M21: 21,697,526 km (0.117 R)
• M22: 23,704,680 km (0.12 R)
• M23: 24,400,460 km (0.109 R)
• M24: 25,624,619 km (0.074 R)
• M25: 26,357,350 km (0.047 R)
• M26: 30,464,110 km (0.119 R)
• M27: 31,882,448 km (0.115 R)
• M28: 35,233,889 km (0.111 R)
• M29: 35,620,151 km (0.078 R)
• M30: 42,046,426 km (0.08 R)
• M31: 45,607,604 km (0.083 R)
• M32: 46,838,046 km (0.099 R)
• M33: 49,204,236 km (0.071 R)
• M34: 57,310,346 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.2

Radius: 7.6

Gravity: 10.34 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.72 AU - 12.18 AU

Year: 15188 Days

Day: 20.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 95.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,502,271 km

• M1: 94,995 km (0.033 R)
• M2: 418,276 km (0.081 R)
• M3: 711,787 km (0.117 R)
• M4: 993,779 km (0.109 R)
• M5: 1,270,385 km (0.039 R)
• M6: 1,758,373 km (0.098 R)
• M7: 2,325,200 km (0.059 R)
• M8: 4,137,279 km (0.066 R)
• M9: 5,101,287 km (0.083 R)
• M10: 5,860,048 km (0.062 R)
• M11: 6,326,344 km (0.12 R)
• M12: 7,288,857 km (0.093 R)
• M13: 8,736,216 km (0.03 R)
• M14: 11,819,877 km (0.077 R)
• M15: 12,691,285 km (0.071 R)
• M16: 15,781,977 km (0.049 R)
• M17: 16,992,224 km (0.106 R)
• M18: 19,510,704 km (0.072 R)
• M19: 20,112,087 km (0.099 R)
• M20: 24,772,211 km (0.072 R)
• M21: 27,351,577 km (0.049 R)
• M22: 31,372,469 km (0.034 R)
• M23: 37,061,676 km (0.112 R)
• M24: 38,249,782 km (0.115 R)
• M25: 43,401,933 km (0.052 R)
• M26: 44,131,821 km (0.081 R)
• M27: 45,018,338 km (0.05 R)
• M28: 45,316,636 km (0.095 R)
• M29: 49,630,440 km (0.077 R)
• M30: 52,378,852 km (0.105 R)
• M31: 53,039,925 km (0.102 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: 543 - 20,442 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit