🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.8

Radius: 10.6

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.39 AU - 0.65 AU

Year: 264 Days

Day: 13.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,425,721 km

• M1: 131,945 km (0.103 R)
• M2: 473,926 km (0.065 R)
• M3: 817,552 km (0.112 R)
• M4: 1,259,315 km (0.11 R)
• M5: 1,696,889 km (0.107 R)
• M6: 2,297,225 km (0.116 R)
• M7: 2,740,932 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.9

Radius: 12.5

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.56 AU - 0.64 AU

Year: 327 Days

Day: 7.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,425,721 km

• M1: 155,432 km (0.066 R)
• M2: 664,364 km (0.12 R)
• M3: 1,147,266 km (0.032 R)
• M4: 1,554,023 km (0.087 R)
• M5: 1,993,541 km (0.047 R)
• M6: 2,455,799 km (0.092 R)
• M7: 2,903,994 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.4

Radius: 13

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.83 AU - 0.85 AU

Year: 541 Days

Day: 7.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,425,721 km

• M1: 161,715 km (0.116 R)
• M2: 692,040 km (0.054 R)
• M3: 1,235,978 km (0.095 R)
• M4: 1,643,482 km (0.056 R)
• M5: 2,071,931 km (0.101 R)
• M6: 2,524,913 km (0.107 R)
• M7: 3,044,317 km (0.086 R)
• M8: 3,518,542 km (0.114 R)
• M9: 4,981,759 km (0.091 R)
• M10: 5,451,646 km (0.065 R)
• M11: 5,878,000 km (0.068 R)
• M12: 6,500,775 km (0.097 R)
• M13: 7,001,480 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606

Radius: 9.8

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.64 AU - 3.38 AU

Year: 3671 Days

Day: 5.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,425,721 km

• M1: 121,922 km (0.071 R)
• M2: 642,523 km (0.096 R)
• M3: 1,052,421 km (0.108 R)
• M4: 1,369,419 km (0.104 R)
• M5: 1,910,814 km (0.115 R)
• M6: 2,217,938 km (0.038 R)
• M7: 2,882,901 km (0.077 R)
• M8: 3,198,552 km (0.1 R)
• M9: 3,941,904 km (0.093 R)
• M10: 4,513,966 km (0.12 R)
• M11: 4,820,343 km (0.074 R)
• M12: 5,474,983 km (0.101 R)
• M13: 5,851,521 km (0.102 R)
• M14: 6,216,540 km (0.11 R)
• M15: 6,716,795 km (0.091 R)
• M16: 10,546,351 km (0.12 R)
• M17: 10,877,710 km (0.054 R)
• M18: 11,736,701 km (0.093 R)
• M19: 12,047,865 km (0.11 R)
• M20: 12,593,897 km (0.096 R)
• M21: 13,251,828 km (0.099 R)
• M22: 14,031,682 km (0.025 R)
• M23: 14,687,519 km (0.101 R)
• M24: 16,333,993 km (0.105 R)
• M25: 18,159,087 km (0.099 R)
• M26: 19,182,037 km (0.096 R)
• M27: 21,080,434 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.6

Radius: 9.4

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.79 AU - 4.01 AU

Year: 4407 Days

Day: 11.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,425,721 km

• M1: 117,434 km (0.117 R)
• M2: 460,313 km (0.059 R)
• M3: 859,739 km (0.087 R)
• M4: 1,260,362 km (0.093 R)
• M5: 1,745,059 km (0.056 R)
• M6: 2,334,325 km (0.108 R)
• M7: 2,649,827 km (0.109 R)
• M8: 3,070,197 km (0.079 R)
• M9: 3,555,941 km (0.058 R)
• M10: 3,999,200 km (0.096 R)
• M11: 5,050,574 km (0.097 R)
• M12: 5,354,257 km (0.051 R)
• M13: 5,847,781 km (0.117 R)
• M14: 11,747,622 km (0.079 R)
• M15: 12,233,515 km (0.1 R)
• M16: 13,665,616 km (0.079 R)
• M17: 14,699,038 km (0.11 R)
• M18: 16,435,570 km (0.109 R)
• M19: 17,353,353 km (0.117 R)
• M20: 18,175,992 km (0.102 R)
• M21: 21,800,748 km (0.114 R)
• M22: 22,165,767 km (0.107 R)
• M23: 22,758,324 km (0.09 R)
• M24: 23,437,498 km (0.071 R)
• M25: 24,286,018 km (0.104 R)
• M26: 25,395,136 km (0.111 R)
• M27: 26,125,922 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 9.2

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.34 AU - 3.86 AU

Year: 4801 Days

Day: 11.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,425,721 km

• M1: 114,592 km (0.119 R)
• M2: 485,744 km (0.105 R)
• M3: 1,158,935 km (0.092 R)
• M4: 1,717,384 km (0.101 R)
• M5: 2,083,300 km (0.056 R)
• M6: 2,487,214 km (0.115 R)
• M7: 3,453,766 km (0.097 R)
• M8: 4,694,980 km (0.099 R)
• M9: 6,528,301 km (0.055 R)
• M10: 7,195,209 km (0.062 R)
• M11: 7,906,696 km (0.113 R)
• M12: 8,216,663 km (0.044 R)
• M13: 9,366,323 km (0.053 R)
• M14: 9,926,118 km (0.054 R)
• M15: 10,287,247 km (0.111 R)
• M16: 10,582,553 km (0.084 R)
• M17: 10,997,687 km (0.084 R)
• M18: 11,502,281 km (0.048 R)
• M19: 12,267,474 km (0.106 R)
• M20: 14,535,378 km (0.104 R)
• M21: 15,001,525 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.2

Radius: 11.9

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.71 AU - 4.51 AU

Year: 4821 Days

Day: 13.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,425,721 km

• M1: 148,401 km (0.115 R)
• M2: 925,861 km (0.063 R)
• M3: 2,362,300 km (0.12 R)
• M4: 2,755,144 km (0.105 R)
• M5: 3,459,301 km (0.095 R)
• M6: 3,946,392 km (0.102 R)
• M7: 5,114,452 km (0.079 R)
• M8: 5,839,403 km (0.047 R)
• M9: 6,533,089 km (0.038 R)
• M10: 7,351,688 km (0.038 R)
• M11: 8,391,543 km (0.112 R)
• M12: 9,110,361 km (0.062 R)
• M13: 10,670,816 km (0.114 R)
• M14: 12,151,536 km (0.097 R)
• M15: 12,811,711 km (0.088 R)
• M16: 13,442,117 km (0.073 R)
• M17: 14,093,167 km (0.111 R)
• M18: 15,872,633 km (0.115 R)
• M19: 16,294,350 km (0.101 R)
• M20: 21,294,958 km (0.12 R)
• M21: 24,102,760 km (0.091 R)
• M22: 29,166,199 km (0.07 R)

Asteroid Belt

Center: 4.87 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.9

Radius: 7.1

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.45 AU - 6.81 AU

Year: 10668 Days

Day: 23.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 115.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 52,425,721 km

• M1: 96,191 km (0.11 R)
• M2: 483,650 km (0.101 R)
• M3: 741,557 km (0.092 R)
• M4: 1,049,728 km (0.112 R)
• M5: 1,289,085 km (0.083 R)
• M6: 1,929,214 km (0.099 R)
• M7: 2,869,886 km (0.105 R)
• M8: 3,227,424 km (0.095 R)
• M9: 3,514,802 km (0.115 R)
• M10: 5,716,135 km (0.112 R)
• M11: 6,467,864 km (0.107 R)
• M12: 7,570,550 km (0.117 R)
• M13: 7,822,323 km (0.081 R)
• M14: 8,978,415 km (0.119 R)
• M15: 9,744,057 km (0.113 R)
• M16: 10,295,325 km (0.119 R)
• M17: 10,656,754 km (0.116 R)
• M18: 11,404,893 km (0.09 R)
• M19: 12,073,745 km (0.061 R)
• M20: 13,306,581 km (0.062 R)
• M21: 14,173,800 km (0.105 R)
• M22: 15,144,092 km (0.07 R)
• M23: 16,366,157 km (0.092 R)
• M24: 17,433,537 km (0.115 R)
• M25: 21,078,490 km (0.118 R)
• M26: 21,493,923 km (0.102 R)
• M27: 22,340,946 km (0.08 R)
• M28: 25,952,687 km (0.077 R)
• M29: 29,520,148 km (0.118 R)
• M30: 30,144,719 km (0.055 R)
• M31: 36,288,105 km (0.102 R)
• M32: 38,466,848 km (0.114 R)
• M33: 39,337,059 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.1

Radius: 5.5

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.89 AU - 10.63 AU

Year: 21433 Days

Day: 23.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,425,721 km

• M1: 68,815 km (0.094 R)
• M2: 282,890 km (0.108 R)
• M3: 916,287 km (0.063 R)
• M4: 1,643,333 km (0.074 R)
• M5: 2,036,775 km (0.114 R)
• M6: 2,313,232 km (0.068 R)
• M7: 2,552,140 km (0.06 R)
• M8: 3,369,243 km (0.093 R)
• M9: 3,703,445 km (0.103 R)
• M10: 4,467,890 km (0.057 R)
• M11: 4,744,646 km (0.092 R)
• M12: 5,822,648 km (0.116 R)
• M13: 6,041,510 km (0.115 R)
• M14: 9,713,689 km (0.108 R)
• M15: 13,987,401 km (0.086 R)
• M16: 14,646,978 km (0.115 R)
• M17: 14,984,471 km (0.116 R)
• M18: 20,269,315 km (0.102 R)
• M19: 21,543,889 km (0.109 R)
• M20: 23,600,710 km (0.115 R)
• M21: 24,629,045 km (0.112 R)
• M22: 25,106,263 km (0.099 R)
• M23: 27,076,915 km (0.071 R)
• M24: 31,883,046 km (0.101 R)
• M25: 34,427,108 km (0.113 R)
• M26: 40,440,942 km (0.062 R)
• M27: 43,833,672 km (0.094 R)
• M28: 48,001,469 km (0.12 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 10,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit