🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188

Radius: 8.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.53 AU - 0.68 AU

Year: 321 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,441,069 km

• M1: 104,419 km (0.079 R)
• M2: 451,337 km (0.105 R)
• M3: 757,863 km (0.112 R)
• M4: 1,047,933 km (0.084 R)
• M5: 1,487,152 km (0.106 R)
• M6: 1,919,490 km (0.06 R)
• M7: 2,255,188 km (0.041 R)
• M8: 2,654,165 km (0.1 R)
• M9: 3,144,996 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.3

Radius: 9.3

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.68 AU - 0.88 AU

Year: 476 Days

Day: 9 Hours

Environment

Temp: -163 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,441,069 km

• M1: 116,686 km (0.032 R)
• M2: 429,645 km (0.062 R)
• M3: 790,176 km (0.116 R)
• M4: 1,175,241 km (0.1 R)
• M5: 1,677,291 km (0.119 R)
• M6: 2,067,443 km (0.103 R)
• M7: 2,587,146 km (0.114 R)
• M8: 3,134,075 km (0.096 R)
• M9: 3,590,349 km (0.101 R)
• M10: 4,035,702 km (0.087 R)
• M11: 4,343,275 km (0.094 R)
• M12: 4,651,297 km (0.03 R)
• M13: 4,974,129 km (0.075 R)
• M14: 5,461,220 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.8

Radius: 8.1

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.89 AU - 1.11 AU

Year: 690 Days

Day: 9.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,441,069 km

• M1: 100,679 km (0.118 R)
• M2: 359,035 km (0.116 R)
• M3: 853,306 km (0.109 R)
• M4: 1,164,619 km (0.094 R)
• M5: 2,098,559 km (0.062 R)
• M6: 2,365,741 km (0.11 R)
• M7: 2,696,202 km (0.112 R)
• M8: 3,203,938 km (0.085 R)
• M9: 3,548,013 km (0.087 R)
• M10: 4,158,073 km (0.093 R)
• M11: 4,927,903 km (0.098 R)
• M12: 5,789,438 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972

Radius: 8.3

Gravity: 14.11 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.22 AU - 1.66 AU

Year: 1193 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,441,069 km

• M1: 103,223 km (0.08 R)
• M2: 366,664 km (0.11 R)
• M3: 658,380 km (0.07 R)
• M4: 1,048,831 km (0.109 R)
• M5: 1,347,129 km (0.113 R)
• M6: 1,617,303 km (0.083 R)
• M7: 2,108,283 km (0.085 R)
• M8: 2,389,377 km (0.078 R)
• M9: 3,013,500 km (0.055 R)
• M10: 3,356,378 km (0.08 R)
• M11: 4,192,630 km (0.114 R)
• M12: 5,161,127 km (0.111 R)
• M13: 5,877,401 km (0.112 R)
• M14: 6,438,842 km (0.11 R)
• M15: 6,984,425 km (0.107 R)
• M16: 7,832,645 km (0.078 R)
• M17: 8,281,738 km (0.117 R)
• M18: 9,078,347 km (0.064 R)
• M19: 9,386,070 km (0.116 R)
• M20: 10,484,716 km (0.054 R)
• M21: 11,523,374 km (0.104 R)
• M22: 11,994,009 km (0.105 R)
• M23: 12,705,048 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.1

Radius: 10

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.93 AU - 1.97 AU

Year: 1880 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,441,069 km

• M1: 124,465 km (0.093 R)
• M2: 445,054 km (0.074 R)
• M3: 931,546 km (0.028 R)
• M4: 1,338,901 km (0.056 R)
• M5: 1,655,151 km (0.117 R)
• M6: 2,033,633 km (0.062 R)
• M7: 2,483,175 km (0.115 R)
• M8: 3,413,524 km (0.091 R)
• M9: 4,014,608 km (0.052 R)
• M10: 5,024,843 km (0.078 R)
• M11: 5,683,971 km (0.11 R)
• M12: 6,529,049 km (0.114 R)
• M13: 8,877,886 km (0.081 R)
• M14: 9,806,739 km (0.043 R)
• M15: 10,617,110 km (0.117 R)
• M16: 13,614,154 km (0.093 R)
• M17: 14,221,970 km (0.085 R)
• M18: 15,726,327 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846

Radius: 11.9

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.93 AU - 2.05 AU

Year: 1938 Days

Day: 12.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,441,069 km

• M1: 161,715 km (0.092 R)
• M2: 539,001 km (0.115 R)
• M3: 1,232,537 km (0.094 R)
• M4: 1,662,631 km (0.027 R)
• M5: 2,294,981 km (0.104 R)
• M6: 3,098,322 km (0.117 R)
• M7: 3,726,184 km (0.117 R)
• M8: 4,396,681 km (0.119 R)
• M9: 4,989,687 km (0.055 R)
• M10: 5,587,630 km (0.093 R)
• M11: 6,414,757 km (0.102 R)
• M12: 7,851,495 km (0.04 R)
• M13: 8,533,661 km (0.056 R)
• M14: 9,154,193 km (0.045 R)
• M15: 9,945,416 km (0.056 R)
• M16: 10,931,715 km (0.066 R)
• M17: 11,585,457 km (0.067 R)
• M18: 12,143,308 km (0.103 R)
• M19: 12,552,608 km (0.067 R)
• M20: 13,836,457 km (0.037 R)
• M21: 14,785,805 km (0.066 R)
• M22: 16,216,858 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.1

Radius: 8.9

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.42 AU - 3.16 AU

Year: 3217 Days

Day: 10.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,441,069 km

• M1: 110,702 km (0.086 R)
• M2: 440,865 km (0.04 R)
• M3: 832,961 km (0.109 R)
• M4: 1,406,519 km (0.101 R)
• M5: 1,760,019 km (0.119 R)
• M6: 2,492,151 km (0.054 R)
• M7: 3,362,063 km (0.111 R)
• M8: 3,644,653 km (0.044 R)
• M9: 4,589,663 km (0.1 R)
• M10: 6,788,602 km (0.105 R)
• M11: 7,300,675 km (0.037 R)
• M12: 8,498,356 km (0.108 R)
• M13: 10,477,685 km (0.034 R)
• M14: 14,153,604 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.5

Radius: 4.3

Gravity: 18.14 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 6.14 AU - 8.78 AU

Year: 14064 Days

Day: 23.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 49,441,069 km

• M1: 53,706 km (0.114 R)
• M2: 197,918 km (0.072 R)
• M3: 692,189 km (0.065 R)
• M4: 1,006,794 km (0.09 R)
• M5: 1,173,446 km (0.059 R)
• M6: 2,173,059 km (0.05 R)
• M7: 2,512,047 km (0.084 R)
• M8: 3,980,051 km (0.117 R)
• M9: 4,604,922 km (0.097 R)
• M10: 4,972,184 km (0.098 R)
• M11: 7,554,992 km (0.114 R)
• M12: 8,827,172 km (0.079 R)
• M13: 9,297,059 km (0.092 R)
• M14: 10,701,484 km (0.102 R)
• M15: 11,454,111 km (0.116 R)
• M16: 12,648,201 km (0.082 R)
• M17: 13,366,570 km (0.11 R)
• M18: 13,612,060 km (0.114 R)
• M19: 14,111,866 km (0.097 R)
• M20: 15,147,981 km (0.062 R)
• M21: 15,889,089 km (0.103 R)
• M22: 18,107,326 km (0.119 R)
• M23: 18,483,565 km (0.088 R)
• M24: 18,941,634 km (0.093 R)
• M25: 19,096,019 km (0.091 R)
• M26: 19,329,242 km (0.083 R)
• M27: 19,880,659 km (0.068 R)
• M28: 22,363,236 km (0.077 R)
• M29: 24,128,491 km (0.098 R)
• M30: 28,637,820 km (0.099 R)
• M31: 29,872,900 km (0.094 R)
• M32: 30,929,061 km (0.094 R)
• M33: 31,900,549 km (0.112 R)
• M34: 36,346,299 km (0.076 R)
• M35: 37,185,543 km (0.042 R)
• M36: 37,427,742 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.7

Radius: 4.5

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 7.68 AU - 11.84 AU

Year: 21047 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 115.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,441,069 km

• M1: 55,950 km (0.101 R)
• M2: 439,369 km (0.051 R)
• M3: 800,199 km (0.101 R)
• M4: 1,049,728 km (0.109 R)
• M5: 1,513,033 km (0.047 R)
• M6: 1,929,364 km (0.06 R)
• M7: 2,985,375 km (0.063 R)
• M8: 4,707,845 km (0.096 R)
• M9: 5,517,618 km (0.117 R)
• M10: 5,689,955 km (0.12 R)
• M11: 7,040,076 km (0.071 R)
• M12: 8,227,733 km (0.113 R)
• M13: 9,741,514 km (0.041 R)
• M14: 10,937,848 km (0.116 R)
• M15: 11,100,910 km (0.076 R)
• M16: 17,360,683 km (0.104 R)
• M17: 17,508,336 km (0.114 R)
• M18: 18,875,511 km (0.086 R)
• M19: 19,665,089 km (0.114 R)
• M20: 22,079,000 km (0.109 R)
• M21: 22,955,045 km (0.116 R)
• M22: 24,036,787 km (0.104 R)
• M23: 24,683,200 km (0.107 R)
• M24: 26,593,864 km (0.085 R)
• M25: 30,277,711 km (0.101 R)
• M26: 34,988,399 km (0.114 R)
• M27: 36,057,724 km (0.114 R)
• M28: 37,640,470 km (0.093 R)
• M29: 49,441,049 km (0.06 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 13,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit