🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.3

Radius: 13.6

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.66 AU - 0.98 AU

Year: 522 Days

Day: 7.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,865,860 km

• M1: 169,494 km (0.077 R)
• M2: 617,989 km (0.059 R)
• M3: 1,097,899 km (0.096 R)
• M4: 1,617,153 km (0.063 R)
• M5: 2,247,409 km (0.07 R)
• M6: 2,701,438 km (0.104 R)
• M7: 3,344,560 km (0.094 R)
• M8: 4,047,969 km (0.058 R)
• M9: 4,594,599 km (0.069 R)
• M10: 5,064,038 km (0.102 R)
• M11: 5,615,904 km (0.077 R)
• M12: 6,082,500 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.1

Radius: 12

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.83 AU - 1.35 AU

Year: 800 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,865,860 km

• M1: 149,299 km (0.089 R)
• M2: 641,775 km (0.115 R)
• M3: 1,121,386 km (0.094 R)
• M4: 1,702,125 km (0.101 R)
• M5: 2,276,132 km (0.037 R)
• M6: 3,132,879 km (0.117 R)
• M7: 3,568,956 km (0.111 R)
• M8: 3,943,998 km (0.079 R)
• M9: 4,596,095 km (0.063 R)
• M10: 6,155,504 km (0.093 R)
• M11: 6,554,481 km (0.099 R)
• M12: 7,515,947 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.7

Radius: 13.7

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.29 AU - 2.45 AU

Year: 2565 Days

Day: 7.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,865,860 km

• M1: 170,392 km (0.084 R)
• M2: 607,218 km (0.047 R)
• M3: 1,356,404 km (0.071 R)
• M4: 2,150,021 km (0.04 R)
• M5: 2,631,576 km (0.081 R)
• M6: 3,253,604 km (0.089 R)
• M7: 3,913,480 km (0.1 R)
• M8: 4,661,470 km (0.091 R)
• M9: 7,011,054 km (0.07 R)
• M10: 7,892,933 km (0.102 R)
• M11: 9,442,318 km (0.04 R)
• M12: 10,026,199 km (0.05 R)
• M13: 11,923,848 km (0.092 R)
• M14: 13,818,056 km (0.112 R)
• M15: 14,861,352 km (0.119 R)
• M16: 15,602,310 km (0.103 R)
• M17: 18,363,438 km (0.114 R)
• M18: 19,565,756 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.8

Radius: 14.1

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.45 AU - 6.09 AU

Year: 8504 Days

Day: 12.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,865,860 km

• M1: 175,329 km (0.11 R)
• M2: 624,721 km (0.082 R)
• M3: 1,516,324 km (0.106 R)
• M4: 2,058,018 km (0.119 R)
• M5: 2,803,763 km (0.118 R)
• M6: 3,770,614 km (0.09 R)
• M7: 5,779,564 km (0.119 R)
• M8: 6,327,840 km (0.116 R)
• M9: 7,871,541 km (0.106 R)
• M10: 10,058,811 km (0.081 R)
• M11: 14,877,508 km (0.104 R)
• M12: 15,787,213 km (0.111 R)
• M13: 18,190,203 km (0.058 R)
• M14: 23,467,867 km (0.113 R)
• M15: 24,367,848 km (0.084 R)
• M16: 25,717,819 km (0.09 R)
• M17: 27,564,604 km (0.085 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.6

Radius: 4.6

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.32 AU - 7.44 AU

Year: 14093 Days

Day: 23.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,865,860 km

• M1: 57,446 km (0.05 R)
• M2: 370,554 km (0.058 R)
• M3: 1,088,175 km (0.088 R)
• M4: 1,446,462 km (0.098 R)
• M5: 3,176,412 km (0.098 R)
• M6: 4,226,589 km (0.107 R)
• M7: 5,868,276 km (0.105 R)
• M8: 11,043,315 km (0.117 R)
• M9: 11,256,193 km (0.063 R)
• M10: 17,340,039 km (0.101 R)
• M11: 18,212,643 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.3

Radius: 5.6

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.81 AU - 8.13 AU

Year: 14351 Days

Day: 21.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 95.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 33,865,860 km

• M1: 69,713 km (0.114 R)
• M2: 301,440 km (0.106 R)
• M3: 585,077 km (0.082 R)
• M4: 1,240,615 km (0.049 R)
• M5: 1,518,718 km (0.084 R)
• M6: 1,953,599 km (0.064 R)
• M7: 2,168,421 km (0.107 R)
• M8: 2,775,489 km (0.083 R)
• M9: 4,193,528 km (0.103 R)
• M10: 6,561,961 km (0.067 R)
• M11: 6,905,288 km (0.085 R)
• M12: 9,523,400 km (0.081 R)
• M13: 10,696,248 km (0.109 R)
• M14: 11,415,066 km (0.095 R)
• M15: 12,683,955 km (0.09 R)
• M16: 14,730,304 km (0.055 R)
• M17: 15,498,788 km (0.118 R)
• M18: 17,050,866 km (0.066 R)
• M19: 17,308,474 km (0.11 R)
• M20: 18,635,706 km (0.1 R)
• M21: 18,977,836 km (0.12 R)
• M22: 20,751,618 km (0.069 R)
• M23: 22,944,125 km (0.074 R)
• M24: 25,203,052 km (0.106 R)
• M25: 27,517,780 km (0.117 R)
• M26: 31,587,142 km (0.06 R)
• M27: 33,663,560 km (0.071 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 17,929 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit