🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.2

Radius: 10.1

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.61 AU - 0.97 AU

Year: 446 Days

Day: 12.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,252,879 km

• M1: 126,111 km (0.11 R)
• M2: 497,114 km (0.111 R)
• M3: 1,126,023 km (0.113 R)
• M4: 1,454,540 km (0.098 R)
• M5: 1,793,080 km (0.084 R)
• M6: 2,220,780 km (0.067 R)
• M7: 2,736,743 km (0.104 R)
• M8: 3,085,905 km (0.105 R)
• M9: 3,428,035 km (0.08 R)
• M10: 4,808,524 km (0.098 R)
• M11: 5,419,931 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.4

Radius: 13.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.77 AU - 0.85 AU

Year: 464 Days

Day: 11.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,252,879 km

• M1: 169,195 km (0.088 R)
• M2: 599,588 km (0.102 R)
• M3: 1,270,236 km (0.098 R)
• M4: 1,736,831 km (0.047 R)
• M5: 2,644,142 km (0.105 R)
• M6: 3,183,891 km (0.055 R)
• M7: 4,027,025 km (0.086 R)
• M8: 4,459,812 km (0.069 R)
• M9: 5,198,975 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.9

Radius: 9.2

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.69 AU - 1.01 AU

Year: 498 Days

Day: 9.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,252,879 km

• M1: 114,442 km (0.102 R)
• M2: 555,457 km (0.081 R)
• M3: 1,040,453 km (0.063 R)
• M4: 1,807,741 km (0.109 R)
• M5: 2,182,483 km (0.118 R)
• M6: 2,499,631 km (0.112 R)
• M7: 3,011,555 km (0.086 R)
• M8: 3,310,601 km (0.064 R)
• M9: 4,105,265 km (0.09 R)
• M10: 4,532,965 km (0.103 R)
• M11: 5,579,402 km (0.102 R)
• M12: 5,961,774 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.3

Radius: 9

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.08 AU - 1.32 AU

Year: 836 Days

Day: 11.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,252,879 km

• M1: 111,899 km (0.118 R)
• M2: 553,063 km (0.118 R)
• M3: 873,352 km (0.114 R)
• M4: 1,644,081 km (0.107 R)
• M5: 2,370,677 km (0.08 R)
• M6: 2,833,832 km (0.095 R)
• M7: 3,392,581 km (0.098 R)
• M8: 5,217,824 km (0.102 R)
• M9: 5,618,447 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.5

Radius: 11.2

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.14 AU - 1.6 AU

Year: 1020 Days

Day: 6.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,252,879 km

• M1: 139,276 km (0.078 R)
• M2: 506,987 km (0.08 R)
• M3: 944,860 km (0.093 R)
• M4: 1,434,045 km (0.11 R)
• M5: 2,622,750 km (0.119 R)
• M6: 3,430,130 km (0.089 R)
• M7: 4,192,929 km (0.027 R)
• M8: 5,335,558 km (0.113 R)
• M9: 7,659,860 km (0.12 R)
• M10: 9,590,719 km (0.098 R)
• M11: 10,311,332 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.3

Radius: 14.6

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.4 AU - 2.24 AU

Year: 1561 Days

Day: 13 Hours

Environment

Temp: -187 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,252,879 km

• M1: 182,210 km (0.072 R)
• M2: 793,617 km (0.113 R)
• M3: 1,745,508 km (0.084 R)
• M4: 2,982,682 km (0.051 R)
• M5: 3,950,431 km (0.046 R)
• M6: 5,098,295 km (0.077 R)
• M7: 7,020,628 km (0.098 R)
• M8: 8,187,641 km (0.095 R)
• M9: 9,025,090 km (0.1 R)
• M10: 10,636,109 km (0.112 R)
• M11: 12,618,132 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 10.1

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.95 AU - 2.35 AU

Year: 2004 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,252,879 km

• M1: 130,449 km (0.066 R)
• M2: 508,034 km (0.062 R)
• M3: 1,047,185 km (0.103 R)
• M4: 1,541,905 km (0.105 R)
• M5: 1,862,045 km (0.116 R)
• M6: 2,252,794 km (0.113 R)
• M7: 2,683,636 km (0.113 R)
• M8: 3,168,932 km (0.076 R)
• M9: 4,035,552 km (0.057 R)
• M10: 4,609,858 km (0.111 R)
• M11: 5,007,340 km (0.11 R)
• M12: 5,795,571 km (0.102 R)
• M13: 6,554,780 km (0.102 R)
• M14: 7,001,180 km (0.113 R)
• M15: 8,111,645 km (0.105 R)
• M16: 8,993,525 km (0.072 R)
• M17: 11,576,482 km (0.041 R)
• M18: 13,211,886 km (0.062 R)
• M19: 14,062,200 km (0.05 R)
• M20: 15,236,094 km (0.057 R)
• M21: 16,372,589 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 9.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.2 AU - 2.56 AU

Year: 2335 Days

Day: 11.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,252,879 km

• M1: 113,395 km (0.111 R)
• M2: 603,777 km (0.103 R)
• M3: 1,753,586 km (0.048 R)
• M4: 2,477,640 km (0.094 R)
• M5: 3,018,287 km (0.079 R)
• M6: 4,128,752 km (0.072 R)
• M7: 4,449,639 km (0.059 R)
• M8: 4,993,577 km (0.034 R)
• M9: 6,190,061 km (0.107 R)
• M10: 6,973,056 km (0.092 R)
• M11: 8,078,883 km (0.03 R)
• M12: 8,673,834 km (0.105 R)
• M13: 9,426,012 km (0.117 R)
• M14: 9,851,319 km (0.073 R)
• M15: 11,024,166 km (0.072 R)
• M16: 12,020,039 km (0.068 R)
• M17: 13,195,579 km (0.104 R)
• M18: 13,727,998 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.9

Radius: 10

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.62 AU - 5.28 AU

Year: 5969 Days

Day: 11.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,252,879 km

• M1: 131,048 km (0.07 R)
• M2: 458,966 km (0.11 R)
• M3: 1,014,573 km (0.111 R)
• M4: 1,482,664 km (0.066 R)
• M5: 2,186,074 km (0.101 R)
• M6: 3,098,172 km (0.102 R)
• M7: 3,527,518 km (0.102 R)
• M8: 4,020,892 km (0.115 R)
• M9: 6,005,008 km (0.064 R)
• M10: 6,571,685 km (0.107 R)
• M11: 7,696,362 km (0.12 R)
• M12: 9,158,232 km (0.057 R)
• M13: 9,595,207 km (0.11 R)
• M14: 10,511,195 km (0.109 R)
• M15: 11,334,582 km (0.117 R)
• M16: 12,148,394 km (0.062 R)
• M17: 14,121,291 km (0.118 R)
• M18: 14,823,952 km (0.111 R)
• M19: 18,761,219 km (0.08 R)
• M20: 19,182,636 km (0.088 R)
• M21: 19,899,060 km (0.109 R)
• M22: 21,922,521 km (0.112 R)
• M23: 24,828,908 km (0.069 R)
• M24: 29,561,138 km (0.075 R)
• M25: 31,690,663 km (0.063 R)
• M26: 32,894,328 km (0.052 R)
• M27: 34,967,754 km (0.059 R)
• M28: 35,392,762 km (0.106 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 17,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit