🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.4

Radius: 10.7

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.7 AU - 0.86 AU

Year: 476 Days

Day: 5.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,241,907 km

• M1: 133,890 km (0.045 R)
• M2: 532,568 km (0.068 R)
• M3: 874,250 km (0.063 R)
• M4: 1,213,538 km (0.057 R)
• M5: 1,830,031 km (0.053 R)
• M6: 2,267,006 km (0.103 R)
• M7: 2,603,302 km (0.119 R)
• M8: 2,961,888 km (0.106 R)
• M9: 3,316,585 km (0.089 R)
• M10: 3,888,647 km (0.12 R)
• M11: 4,464,748 km (0.104 R)
• M12: 4,805,233 km (0.098 R)
• M13: 5,213,486 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.9

Radius: 10.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.27 AU - 2.01 AU

Year: 1450 Days

Day: 8.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,241,907 km

• M1: 135,685 km (0.108 R)
• M2: 474,674 km (0.051 R)
• M3: 836,252 km (0.075 R)
• M4: 1,305,391 km (0.083 R)
• M5: 2,055,026 km (0.041 R)
• M6: 2,509,355 km (0.066 R)
• M7: 3,240,888 km (0.101 R)
• M8: 4,020,742 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.4

Radius: 13.4

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.66 AU - 1.8 AU

Year: 1571 Days

Day: 9.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,241,907 km

• M1: 166,951 km (0.088 R)
• M2: 743,801 km (0.081 R)
• M3: 1,260,063 km (0.12 R)
• M4: 1,722,171 km (0.036 R)
• M5: 2,226,316 km (0.078 R)
• M6: 3,123,903 km (0.083 R)
• M7: 3,919,165 km (0.091 R)
• M8: 4,345,968 km (0.097 R)
• M9: 5,609,172 km (0.113 R)
• M10: 6,401,592 km (0.101 R)
• M11: 8,511,072 km (0.098 R)
• M12: 9,264,447 km (0.086 R)
• M13: 11,831,845 km (0.07 R)
• M14: 14,664,930 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.2

Radius: 10.1

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.74 AU - 2.28 AU

Year: 1967 Days

Day: 8.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,241,907 km

• M1: 125,662 km (0.065 R)
• M2: 581,637 km (0.102 R)
• M3: 985,850 km (0.112 R)
• M4: 2,160,941 km (0.098 R)
• M5: 2,629,931 km (0.119 R)
• M6: 3,707,634 km (0.098 R)
• M7: 4,184,552 km (0.085 R)
• M8: 5,138,388 km (0.116 R)
• M9: 7,874,383 km (0.115 R)
• M10: 8,433,580 km (0.095 R)
• M11: 10,871,427 km (0.038 R)
• M12: 11,529,957 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.2

Radius: 14.6

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.14 AU - 2.3 AU

Year: 2283 Days

Day: 9.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,241,907 km

• M1: 191,784 km (0.086 R)
• M2: 730,786 km (0.077 R)
• M3: 1,232,088 km (0.034 R)
• M4: 1,940,733 km (0.076 R)
• M5: 4,242,745 km (0.095 R)
• M6: 5,526,445 km (0.105 R)
• M7: 6,606,242 km (0.108 R)
• M8: 7,106,647 km (0.117 R)
• M9: 9,091,960 km (0.031 R)
• M10: 11,283,419 km (0.084 R)
• M11: 12,148,095 km (0.115 R)
• M12: 13,212,334 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.2

Radius: 10.3

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.64 AU - 2.78 AU

Year: 3079 Days

Day: 10.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,241,907 km

• M1: 128,205 km (0.114 R)
• M2: 501,751 km (0.069 R)
• M3: 1,379,592 km (0.034 R)
• M4: 1,838,558 km (0.053 R)
• M5: 2,208,214 km (0.114 R)
• M6: 2,598,216 km (0.087 R)
• M7: 3,628,796 km (0.119 R)
• M8: 4,405,059 km (0.056 R)
• M9: 5,682,924 km (0.073 R)
• M10: 6,018,173 km (0.087 R)
• M11: 7,463,587 km (0.109 R)
• M12: 8,057,341 km (0.073 R)
• M13: 8,448,241 km (0.1 R)
• M14: 8,817,747 km (0.096 R)
• M15: 9,553,170 km (0.086 R)
• M16: 10,596,765 km (0.084 R)
• M17: 12,259,695 km (0.08 R)
• M18: 14,043,201 km (0.1 R)
• M19: 16,508,125 km (0.087 R)
• M20: 18,229,099 km (0.112 R)
• M21: 18,564,647 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.7

Radius: 14.8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.69 AU - 4.23 AU

Year: 5439 Days

Day: 5.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,241,907 km

• M1: 192,682 km (0.07 R)
• M2: 1,115,851 km (0.104 R)
• M3: 1,576,612 km (0.045 R)
• M4: 2,038,869 km (0.066 R)
• M5: 3,094,432 km (0.079 R)
• M6: 3,878,923 km (0.118 R)
• M7: 4,514,265 km (0.078 R)
• M8: 5,083,036 km (0.078 R)
• M9: 7,567,259 km (0.097 R)
• M10: 9,155,240 km (0.106 R)
• M11: 13,764,350 km (0.051 R)
• M12: 19,394,167 km (0.099 R)
• M13: 22,492,339 km (0.109 R)
• M14: 26,151,653 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.2

Radius: 9.6

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.01 AU - 4.63 AU

Year: 6198 Days

Day: 9.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,241,907 km

• M1: 119,529 km (0.084 R)
• M2: 1,106,875 km (0.068 R)
• M3: 1,480,271 km (0.09 R)
• M4: 3,119,116 km (0.06 R)
• M5: 3,676,368 km (0.042 R)
• M6: 4,699,617 km (0.101 R)
• M7: 5,606,031 km (0.063 R)
• M8: 5,932,752 km (0.095 R)
• M9: 6,398,750 km (0.092 R)
• M10: 8,358,332 km (0.101 R)
• M11: 9,811,526 km (0.072 R)
• M12: 10,331,379 km (0.102 R)
• M13: 11,006,963 km (0.092 R)
• M14: 11,904,699 km (0.07 R)
• M15: 16,405,800 km (0.086 R)
• M16: 16,953,328 km (0.103 R)
• M17: 17,387,611 km (0.037 R)
• M18: 21,709,344 km (0.118 R)
• M19: 24,904,904 km (0.104 R)
• M20: 27,455,548 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.6

Radius: 3.5

Gravity: 47.31 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.24 AU - 7.8 AU

Year: 11492 Days

Day: 15.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,241,907 km

• M1: 43,533 km (0.116 R)
• M2: 176,974 km (0.053 R)
• M3: 338,241 km (0.093 R)
• M4: 572,661 km (0.112 R)
• M5: 688,449 km (0.104 R)
• M6: 829,371 km (0.104 R)
• M7: 1,065,885 km (0.081 R)
• M8: 1,425,967 km (0.096 R)
• M9: 1,552,826 km (0.095 R)
• M10: 1,733,839 km (0.115 R)
• M11: 1,945,520 km (0.066 R)
• M12: 3,224,133 km (0.09 R)
• M13: 3,369,393 km (0.07 R)
• M14: 3,518,991 km (0.079 R)
• M15: 4,334,748 km (0.103 R)
• M16: 4,817,949 km (0.065 R)
• M17: 8,402,164 km (0.063 R)
• M18: 9,392,951 km (0.065 R)
• M19: 13,628,366 km (0.116 R)
• M20: 15,877,271 km (0.117 R)
• M21: 16,298,239 km (0.053 R)
• M22: 16,654,731 km (0.109 R)
• M23: 19,695,607 km (0.095 R)
• M24: 24,732,118 km (0.104 R)
• M25: 25,967,946 km (0.107 R)
• M26: 28,050,199 km (0.061 R)
• M27: 34,724,508 km (0.112 R)
• M28: 34,959,676 km (0.041 R)
• M29: 35,671,463 km (0.101 R)
• M30: 37,492,966 km (0.082 R)
• M31: 40,795,489 km (0.079 R)
• M32: 41,716,713 km (0.106 R)
• M33: 41,849,406 km (0.084 R)
• M34: 43,464,016 km (0.07 R)
• M35: 47,681,329 km (0.047 R)
• M36: 48,409,721 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.3

Radius: 4

Gravity: 41.71 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.33 AU - 8.99 AU

Year: 17591 Days

Day: 16.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,241,907 km

• M1: 49,816 km (0.086 R)
• M2: 198,217 km (0.117 R)
• M3: 401,820 km (0.106 R)
• M4: 531,820 km (0.112 R)
• M5: 1,396,646 km (0.073 R)
• M6: 1,955,543 km (0.107 R)
• M7: 2,403,140 km (0.12 R)
• M8: 4,217,613 km (0.12 R)
• M9: 5,323,889 km (0.104 R)
• M10: 5,745,157 km (0.068 R)
• M11: 5,984,064 km (0.074 R)
• M12: 6,312,881 km (0.118 R)
• M13: 6,697,197 km (0.08 R)
• M14: 6,917,256 km (0.075 R)
• M15: 9,722,665 km (0.083 R)
• M16: 9,948,109 km (0.081 R)
• M17: 12,071,202 km (0.052 R)
• M18: 15,678,006 km (0.106 R)
• M19: 22,289,484 km (0.11 R)
• M20: 24,089,147 km (0.096 R)
• M21: 24,709,828 km (0.116 R)
• M22: 25,447,495 km (0.117 R)
• M23: 28,088,047 km (0.092 R)
• M24: 30,663,824 km (0.081 R)
• M25: 32,885,053 km (0.07 R)
• M26: 34,293,965 km (0.085 R)
• M27: 41,060,277 km (0.112 R)
• M28: 41,648,945 km (0.107 R)
• M29: 41,796,897 km (0.082 R)
• M30: 57,703,190 km (0.097 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 13,876 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit