🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.4

Radius: 9.8

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.54 AU - 0.6 AU

Year: 287 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,852,316 km

• M1: 122,969 km (0.117 R)
• M2: 446,699 km (0.103 R)
• M3: 792,121 km (0.074 R)
• M4: 1,373,159 km (0.105 R)
• M5: 1,739,524 km (0.097 R)
• M6: 2,486,616 km (0.031 R)
• M7: 2,832,486 km (0.087 R)
• M8: 3,190,025 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.3

Radius: 12.4

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.74 AU - 0.94 AU

Year: 513 Days

Day: 11.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,852,316 km

• M1: 154,235 km (0.092 R)
• M2: 555,008 km (0.04 R)
• M3: 1,104,331 km (0.09 R)
• M4: 1,609,374 km (0.109 R)
• M5: 2,044,105 km (0.111 R)
• M6: 2,438,744 km (0.057 R)
• M7: 2,851,934 km (0.08 R)
• M8: 3,689,682 km (0.078 R)
• M9: 4,281,641 km (0.077 R)
• M10: 4,762,598 km (0.096 R)
• M11: 5,279,608 km (0.105 R)
• M12: 5,674,098 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.3

Radius: 12.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.68 AU - 1.08 AU

Year: 550 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,852,316 km

• M1: 155,432 km (0.08 R)
• M2: 640,578 km (0.116 R)
• M3: 1,117,047 km (0.107 R)
• M4: 1,931,458 km (0.111 R)
• M5: 2,526,858 km (0.026 R)
• M6: 3,253,305 km (0.051 R)
• M7: 4,167,797 km (0.12 R)
• M8: 4,664,162 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.9

Radius: 9.3

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.98 AU - 4.62 AU

Year: 5946 Days

Day: 6.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,852,316 km

• M1: 117,135 km (0.047 R)
• M2: 447,746 km (0.067 R)
• M3: 1,318,107 km (0.085 R)
• M4: 1,983,069 km (0.093 R)
• M5: 3,555,941 km (0.038 R)
• M6: 3,989,027 km (0.075 R)
• M7: 10,752,497 km (0.075 R)
• M8: 11,092,383 km (0.047 R)
• M9: 12,477,809 km (0.081 R)
• M10: 12,996,165 km (0.094 R)
• M11: 15,161,146 km (0.066 R)
• M12: 18,812,680 km (0.099 R)
• M13: 20,580,179 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.6

Radius: 4.8

Gravity: 41.13 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.7 AU - 9.5 AU

Year: 15373 Days

Day: 22.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 80,852,316 km

• M1: 59,989 km (0.067 R)
• M2: 562,787 km (0.086 R)
• M3: 1,054,665 km (0.048 R)
• M4: 1,490,144 km (0.082 R)
• M5: 1,866,084 km (0.108 R)
• M6: 2,731,956 km (0.116 R)
• M7: 3,403,800 km (0.113 R)
• M8: 3,718,853 km (0.112 R)
• M9: 3,868,451 km (0.107 R)
• M10: 4,608,811 km (0.069 R)
• M11: 5,830,278 km (0.116 R)
• M12: 6,623,745 km (0.06 R)
• M13: 6,799,522 km (0.058 R)
• M14: 7,069,098 km (0.12 R)
• M15: 7,299,030 km (0.103 R)
• M16: 7,534,048 km (0.112 R)
• M17: 9,051,868 km (0.062 R)
• M18: 9,712,193 km (0.081 R)
• M19: 10,582,254 km (0.088 R)
• M20: 14,807,197 km (0.114 R)
• M21: 15,336,475 km (0.118 R)
• M22: 16,193,670 km (0.036 R)
• M23: 16,352,842 km (0.079 R)
• M24: 20,402,307 km (0.112 R)
• M25: 20,868,903 km (0.116 R)
• M26: 27,484,719 km (0.071 R)
• M27: 31,016,725 km (0.115 R)
• M28: 34,972,392 km (0.101 R)
• M29: 35,238,526 km (0.073 R)
• M30: 35,506,007 km (0.118 R)
• M31: 35,909,922 km (0.079 R)
• M32: 40,117,960 km (0.06 R)
• M33: 45,428,834 km (0.079 R)
• M34: 49,496,849 km (0.048 R)
• M35: 51,877,550 km (0.079 R)
• M36: 52,050,485 km (0.083 R)
• M37: 60,427,068 km (0.083 R)
• M38: 64,933,105 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.7

Radius: 7.9

Gravity: 12.78 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 8.27 AU - 9.17 AU

Year: 17171 Days

Day: 23.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 80,852,316 km

• M1: 98,735 km (0.083 R)
• M2: 498,759 km (0.092 R)
• M3: 976,874 km (0.105 R)
• M4: 1,324,091 km (0.093 R)
• M5: 1,583,793 km (0.117 R)
• M6: 2,228,859 km (0.116 R)
• M7: 2,813,188 km (0.102 R)
• M8: 3,581,074 km (0.062 R)
• M9: 5,760,116 km (0.114 R)
• M10: 6,678,797 km (0.09 R)
• M11: 7,127,441 km (0.041 R)
• M12: 7,405,992 km (0.086 R)
• M13: 8,134,683 km (0.107 R)
• M14: 9,071,166 km (0.098 R)
• M15: 9,565,437 km (0.047 R)
• M16: 9,847,729 km (0.118 R)
• M17: 11,343,707 km (0.103 R)
• M18: 11,596,378 km (0.072 R)
• M19: 13,331,713 km (0.047 R)
• M20: 17,898,787 km (0.118 R)
• M21: 18,327,983 km (0.066 R)
• M22: 20,954,323 km (0.077 R)
• M23: 23,005,909 km (0.115 R)
• M24: 24,236,650 km (0.094 R)
• M25: 26,940,333 km (0.096 R)
• M26: 31,549,443 km (0.118 R)
• M27: 41,240,991 km (0.116 R)
• M28: 44,291,142 km (0.106 R)
• M29: 46,675,134 km (0.11 R)
• M30: 48,311,136 km (0.105 R)
• M31: 52,392,914 km (0.063 R)
• M32: 52,918,900 km (0.032 R)
• M33: 59,887,917 km (0.061 R)
• M34: 62,013,853 km (0.099 R)
• M35: 69,956,452 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582

Radius: 4.9

Gravity: 24.24 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 9.75 AU - 11.91 AU

Year: 23767 Days

Day: 21.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,852,316 km

• M1: 61,036 km (0.083 R)
• M2: 218,712 km (0.116 R)
• M3: 2,330,735 km (0.119 R)
• M4: 2,937,953 km (0.114 R)
• M5: 3,495,205 km (0.094 R)
• M6: 3,767,922 km (0.088 R)
• M7: 4,220,006 km (0.101 R)
• M8: 4,707,396 km (0.1 R)
• M9: 5,467,802 km (0.075 R)
• M10: 9,392,502 km (0.076 R)
• M11: 16,823,029 km (0.095 R)
• M12: 20,166,541 km (0.083 R)
• M13: 27,417,550 km (0.047 R)
• M14: 36,658,210 km (0.063 R)
• M15: 39,442,227 km (0.101 R)
• M16: 43,796,871 km (0.082 R)
• M17: 56,824,602 km (0.101 R)
• M18: 64,419,237 km (0.096 R)
• M19: 77,270,891 km (0.079 R)
• M20: 78,452,714 km (0.116 R)
• M21: 79,167,492 km (0.12 R)
• M22: 80,852,264 km (0.096 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 13,994 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit