🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.8

Radius: 11.4

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.48 AU - 0.54 AU

Year: 251 Days

Day: 14 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,365,985 km

• M1: 141,819 km (0.107 R)
• M2: 496,815 km (0.105 R)
• M3: 859,290 km (0.109 R)
• M4: 1,248,693 km (0.095 R)
• M5: 1,697,487 km (0.116 R)
• M6: 2,102,000 km (0.085 R)
• M7: 2,563,210 km (0.104 R)
• M8: 3,280,233 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.1

Radius: 11.4

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.63 AU - 0.99 AU

Year: 503 Days

Day: 12 Hours

Environment

Temp: -155 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,365,985 km

• M1: 141,819 km (0.069 R)
• M2: 510,278 km (0.048 R)
• M3: 877,541 km (0.114 R)
• M4: 1,425,668 km (0.062 R)
• M5: 1,820,606 km (0.086 R)
• M6: 2,263,266 km (0.119 R)
• M7: 2,678,550 km (0.11 R)
• M8: 3,210,819 km (0.085 R)
• M9: 4,418,972 km (0.102 R)
• M10: 4,937,478 km (0.082 R)
• M11: 5,384,476 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.4

Radius: 14.5

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.92 AU - 2.18 AU

Year: 2026 Days

Day: 10.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,365,985 km

• M1: 180,565 km (0.096 R)
• M2: 637,287 km (0.11 R)
• M3: 1,634,058 km (0.074 R)
• M4: 2,142,541 km (0.065 R)
• M5: 2,683,487 km (0.089 R)
• M6: 3,384,502 km (0.073 R)
• M7: 4,327,118 km (0.096 R)
• M8: 5,366,973 km (0.087 R)
• M9: 6,677,301 km (0.086 R)
• M10: 7,246,072 km (0.094 R)
• M11: 8,096,835 km (0.095 R)
• M12: 8,711,383 km (0.084 R)
• M13: 10,553,980 km (0.114 R)
• M14: 11,130,830 km (0.116 R)
• M15: 12,988,985 km (0.06 R)
• M16: 14,384,284 km (0.111 R)
• M17: 15,142,596 km (0.11 R)
• M18: 17,524,942 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23

Radius: 11.2

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.35 AU - 3.13 AU

Year: 3131 Days

Day: 14.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,365,985 km

• M1: 140,173 km (0.119 R)
• M2: 981,960 km (0.053 R)
• M3: 1,862,344 km (0.119 R)
• M4: 2,869,886 km (0.104 R)
• M5: 3,405,895 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.1

Radius: 12.8

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.31 AU - 4.41 AU

Year: 5235 Days

Day: 11.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,365,985 km

• M1: 159,471 km (0.112 R)
• M2: 705,803 km (0.087 R)
• M3: 1,107,024 km (0.086 R)
• M4: 1,839,156 km (0.116 R)
• M5: 2,358,261 km (0.105 R)
• M6: 3,774,653 km (0.068 R)
• M7: 5,189,401 km (0.113 R)
• M8: 10,792,290 km (0.081 R)
• M9: 12,010,016 km (0.106 R)
• M10: 13,364,027 km (0.072 R)
• M11: 17,136,137 km (0.028 R)
• M12: 17,979,270 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.1

Radius: 9.9

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.97 AU - 4.53 AU

Year: 6048 Days

Day: 7.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,365,985 km

• M1: 123,119 km (0.08 R)
• M2: 671,395 km (0.101 R)
• M3: 2,095,567 km (0.046 R)
• M4: 3,185,238 km (0.107 R)
• M5: 4,352,251 km (0.038 R)
• M6: 5,505,202 km (0.097 R)
• M7: 6,368,681 km (0.059 R)
• M8: 6,710,512 km (0.102 R)
• M9: 8,731,878 km (0.061 R)
• M10: 9,502,457 km (0.071 R)
• M11: 13,098,042 km (0.116 R)
• M12: 15,107,141 km (0.099 R)
• M13: 17,116,540 km (0.096 R)
• M14: 20,381,663 km (0.099 R)
• M15: 26,503,806 km (0.067 R)
• M16: 27,480,830 km (0.093 R)
• M17: 33,236,608 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 711.8

Radius: 7.8

Gravity: 11.7 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.64 AU - 7.25 AU

Year: 11281 Days

Day: 24.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,365,985 km

• M1: 97,239 km (0.089 R)
• M2: 498,460 km (0.07 R)
• M3: 761,304 km (0.094 R)
• M4: 1,041,500 km (0.07 R)
• M5: 1,514,828 km (0.095 R)
• M6: 1,850,226 km (0.064 R)
• M7: 3,001,382 km (0.1 R)
• M8: 3,637,472 km (0.114 R)
• M9: 3,987,681 km (0.079 R)
• M10: 4,693,484 km (0.074 R)
• M11: 5,175,338 km (0.081 R)
• M12: 5,689,656 km (0.084 R)
• M13: 5,941,130 km (0.104 R)
• M14: 6,780,224 km (0.116 R)
• M15: 8,320,334 km (0.062 R)
• M16: 9,568,729 km (0.057 R)
• M17: 10,080,503 km (0.101 R)
• M18: 12,795,255 km (0.108 R)
• M19: 14,652,363 km (0.071 R)
• M20: 15,610,239 km (0.12 R)
• M21: 16,976,217 km (0.054 R)
• M22: 19,454,006 km (0.11 R)
• M23: 23,515,588 km (0.102 R)
• M24: 26,783,404 km (0.096 R)
• M25: 29,157,971 km (0.111 R)
• M26: 35,157,295 km (0.114 R)
• M27: 36,006,412 km (0.107 R)
• M28: 41,660,015 km (0.062 R)
• M29: 49,978,704 km (0.04 R)
• M30: 50,590,110 km (0.096 R)
• M31: 52,140,543 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 192.3

Radius: 6.2

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.91 AU - 10.27 AU

Year: 17378 Days

Day: 21.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,365,985 km

• M1: 77,043 km (0.117 R)
• M2: 284,236 km (0.109 R)
• M3: 679,922 km (0.109 R)
• M4: 1,008,738 km (0.118 R)
• M5: 1,533,528 km (0.089 R)
• M6: 2,069,238 km (0.098 R)
• M7: 2,763,521 km (0.106 R)
• M8: 3,961,352 km (0.116 R)
• M9: 4,176,623 km (0.037 R)
• M10: 5,405,270 km (0.117 R)
• M11: 8,030,563 km (0.056 R)
• M12: 8,913,490 km (0.072 R)
• M13: 10,458,238 km (0.066 R)
• M14: 11,509,611 km (0.038 R)
• M15: 11,893,779 km (0.107 R)
• M16: 12,457,314 km (0.086 R)
• M17: 14,443,375 km (0.115 R)
• M18: 14,825,897 km (0.069 R)
• M19: 17,122,374 km (0.112 R)
• M20: 18,206,958 km (0.062 R)
• M21: 21,076,844 km (0.028 R)
• M22: 28,682,849 km (0.084 R)
• M23: 36,623,204 km (0.061 R)
• M24: 37,693,278 km (0.06 R)
• M25: 39,523,009 km (0.112 R)
• M26: 41,283,328 km (0.119 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: 173 - 13,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit