🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.47 AU - 0.77 AU

Year: 315 Days

Day: 40.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.9

Radius: 8

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.58 AU - 0.82 AU

Year: 378 Days

Day: 13.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,989,095 km

• M1: 104,569 km (0.094 R)
• M2: 288,425 km (0.045 R)
• M3: 455,077 km (0.075 R)
• M4: 614,847 km (0.111 R)
• M5: 865,424 km (0.102 R)
• M6: 1,031,926 km (0.092 R)
• M7: 1,483,113 km (0.057 R)
• M8: 1,730,548 km (0.08 R)
• M9: 1,905,428 km (0.093 R)
• M10: 2,085,095 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.1

Radius: 11.7

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.74 AU - 1.1 AU

Year: 570 Days

Day: 14.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,989,095 km

• M1: 151,842 km (0.118 R)
• M2: 474,973 km (0.041 R)
• M3: 717,771 km (0.078 R)
• M4: 978,370 km (0.117 R)
• M5: 1,604,736 km (0.12 R)
• M6: 2,019,272 km (0.103 R)
• M7: 2,383,992 km (0.078 R)
• M8: 2,680,644 km (0.038 R)
• M9: 2,955,456 km (0.093 R)
• M10: 3,363,708 km (0.072 R)
• M11: 3,827,462 km (0.114 R)
• M12: 4,090,006 km (0.051 R)
• M13: 4,430,939 km (0.072 R)
• M14: 4,693,334 km (0.087 R)
• M15: 5,471,841 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.7

Radius: 11.6

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.22 AU - 1.9 AU

Year: 1258 Days

Day: 5 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,989,095 km

• M1: 210,185 km (0.119 R)
• M2: 485,445 km (0.115 R)
• M3: 895,044 km (0.065 R)
• M4: 1,272,779 km (0.105 R)
• M5: 1,631,514 km (0.113 R)
• M6: 1,884,036 km (0.063 R)
• M7: 2,458,342 km (0.082 R)
• M8: 2,993,902 km (0.079 R)
• M9: 3,705,390 km (0.11 R)
• M10: 4,258,154 km (0.1 R)
• M11: 4,549,570 km (0.087 R)
• M12: 5,277,962 km (0.113 R)
• M13: 5,587,929 km (0.039 R)
• M14: 6,539,821 km (0.09 R)
• M15: 6,901,997 km (0.091 R)
• M16: 7,137,614 km (0.101 R)
• M17: 7,498,593 km (0.108 R)
• M18: 8,413,085 km (0.082 R)
• M19: 9,033,318 km (0.064 R)
• M20: 9,676,140 km (0.114 R)
• M21: 10,076,613 km (0.109 R)
• M22: 10,300,262 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.6

Radius: 10.1

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.16 AU - 3.42 AU

Year: 3853 Days

Day: 11 Hours

Environment

Temp: -213 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 63,989,095 km

• M1: 128,953 km (0.053 R)
• M2: 448,046 km (0.036 R)
• M3: 815,608 km (0.028 R)
• M4: 1,144,424 km (0.096 R)
• M5: 1,439,132 km (0.06 R)
• M6: 2,110,676 km (0.071 R)
• M7: 2,465,971 km (0.089 R)
• M8: 2,867,941 km (0.105 R)
• M9: 3,153,673 km (0.098 R)
• M10: 4,286,278 km (0.11 R)
• M11: 4,525,635 km (0.05 R)
• M12: 5,117,743 km (0.084 R)
• M13: 6,230,901 km (0.117 R)
• M14: 6,599,959 km (0.058 R)
• M15: 7,090,490 km (0.097 R)
• M16: 7,286,015 km (0.058 R)
• M17: 10,108,478 km (0.052 R)
• M18: 10,342,299 km (0.12 R)
• M19: 12,128,199 km (0.117 R)
• M20: 13,862,337 km (0.047 R)
• M21: 14,532,835 km (0.028 R)
• M22: 15,096,968 km (0.117 R)
• M23: 15,342,010 km (0.047 R)
• M24: 19,719,991 km (0.109 R)
• M25: 21,919,379 km (0.116 R)
• M26: 23,012,640 km (0.093 R)
• M27: 23,978,295 km (0.11 R)
• M28: 25,809,522 km (0.113 R)
• M29: 26,723,266 km (0.08 R)
• M30: 27,432,958 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.9

Radius: 13.8

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.73 AU - 5.51 AU

Year: 7480 Days

Day: 13.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,989,095 km

• M1: 172,038 km (0.109 R)
• M2: 856,298 km (0.102 R)
• M3: 1,338,003 km (0.106 R)
• M4: 4,818,547 km (0.082 R)
• M5: 6,773,343 km (0.104 R)
• M6: 7,297,983 km (0.073 R)
• M7: 8,735,917 km (0.069 R)
• M8: 10,500,723 km (0.079 R)
• M9: 11,154,616 km (0.104 R)
• M10: 14,625,286 km (0.108 R)
• M11: 17,251,477 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.7

Radius: 7.4

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.88 AU - 8.82 AU

Year: 12866 Days

Day: 17.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,989,095 km

• M1: 210,783 km (0.092 R)
• M2: 537,655 km (0.116 R)
• M3: 692,937 km (0.064 R)
• M4: 910,004 km (0.098 R)
• M5: 1,362,089 km (0.08 R)
• M6: 2,236,189 km (0.098 R)
• M7: 2,889,184 km (0.083 R)
• M8: 4,365,565 km (0.112 R)
• M9: 4,515,313 km (0.042 R)
• M10: 5,839,852 km (0.105 R)
• M11: 6,732,353 km (0.072 R)
• M12: 12,311,755 km (0.072 R)
• M13: 14,949,764 km (0.115 R)
• M14: 18,271,435 km (0.066 R)
• M15: 19,326,848 km (0.064 R)
• M16: 22,062,096 km (0.117 R)
• M17: 24,409,585 km (0.09 R)
• M18: 25,050,762 km (0.046 R)
• M19: 25,266,482 km (0.111 R)
• M20: 30,323,788 km (0.089 R)
• M21: 33,067,113 km (0.089 R)
• M22: 36,881,111 km (0.059 R)
• M23: 42,852,460 km (0.098 R)
• M24: 43,417,491 km (0.047 R)
• M25: 46,787,931 km (0.108 R)
• M26: 49,878,623 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 887

Radius: 7.7

Gravity: 14.96 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.77 AU - 8.45 AU

Year: 13555 Days

Day: 20.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 63,989,095 km

• M1: 123,867 km (0.098 R)
• M2: 408,851 km (0.112 R)
• M3: 624,870 km (0.057 R)
• M4: 786,885 km (0.046 R)
• M5: 1,260,212 km (0.066 R)
• M6: 1,420,581 km (0.062 R)
• M7: 2,120,101 km (0.095 R)
• M8: 2,600,609 km (0.097 R)
• M9: 2,913,419 km (0.097 R)
• M10: 3,301,625 km (0.108 R)
• M11: 4,283,137 km (0.045 R)
• M12: 4,822,886 km (0.076 R)
• M13: 6,315,424 km (0.063 R)
• M14: 6,597,565 km (0.069 R)
• M15: 6,802,963 km (0.069 R)
• M16: 7,138,362 km (0.08 R)
• M17: 8,012,462 km (0.092 R)
• M18: 8,514,961 km (0.1 R)
• M19: 9,128,761 km (0.112 R)
• M20: 10,014,231 km (0.093 R)
• M21: 14,390,567 km (0.067 R)
• M22: 19,283,166 km (0.116 R)
• M23: 23,870,435 km (0.108 R)
• M24: 26,021,652 km (0.118 R)
• M25: 30,515,422 km (0.086 R)
• M26: 32,668,285 km (0.115 R)
• M27: 33,310,060 km (0.065 R)
• M28: 34,518,661 km (0.085 R)
• M29: 35,368,078 km (0.106 R)
• M30: 36,903,551 km (0.116 R)
• M31: 37,194,967 km (0.12 R)
• M32: 38,868,818 km (0.06 R)
• M33: 39,769,996 km (0.08 R)
• M34: 43,794,328 km (0.102 R)
• M35: 45,286,267 km (0.116 R)
• M36: 45,501,539 km (0.096 R)
• M37: 48,456,695 km (0.03 R)
• M38: 57,395,916 km (0.046 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 13,580 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit