🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.1

Radius: 13.1

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.58 AU - 0.8 AU

Year: 389 Days

Day: 13.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 124.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,202,387 km

• M1: 192,981 km (0.036 R)
• M2: 1,544,897 km (0.094 R)
• M3: 2,251,448 km (0.056 R)
• M4: 2,907,135 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.6

Radius: 14.7

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.25 AU - 1.45 AU

Year: 1064 Days

Day: 8.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,202,387 km

• M1: 182,809 km (0.112 R)
• M2: 973,433 km (0.079 R)
• M3: 1,472,791 km (0.113 R)
• M4: 2,063,254 km (0.075 R)
• M5: 3,048,805 km (0.117 R)
• M6: 3,594,538 km (0.099 R)
• M7: 4,084,022 km (0.086 R)
• M8: 4,868,513 km (0.095 R)
• M9: 5,828,333 km (0.093 R)
• M10: 6,998,039 km (0.091 R)
• M11: 7,956,213 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.7

Radius: 8.1

Gravity: 9.08 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.38 AU - 1.48 AU

Year: 1160 Days

Day: 6.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,202,387 km

• M1: 100,679 km (0.094 R)
• M2: 391,797 km (0.099 R)
• M3: 664,663 km (0.1 R)
• M4: 1,031,627 km (0.112 R)
• M5: 1,448,257 km (0.108 R)
• M6: 1,913,955 km (0.07 R)
• M7: 2,193,254 km (0.112 R)
• M8: 2,657,606 km (0.04 R)
• M9: 3,242,534 km (0.091 R)
• M10: 3,766,874 km (0.107 R)
• M11: 4,851,758 km (0.081 R)
• M12: 5,537,964 km (0.088 R)
• M13: 5,829,979 km (0.106 R)
• M14: 6,331,879 km (0.083 R)
• M15: 6,651,421 km (0.063 R)
• M16: 7,933,474 km (0.114 R)
• M17: 8,251,370 km (0.09 R)
• M18: 9,026,287 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.8

Radius: 10.4

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.94 AU - 2.28 AU

Year: 2079 Days

Day: 8.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,202,387 km

• M1: 130,001 km (0.032 R)
• M2: 563,386 km (0.063 R)
• M3: 989,889 km (0.116 R)
• M4: 1,950,158 km (0.084 R)
• M5: 2,976,100 km (0.078 R)
• M6: 3,486,827 km (0.12 R)
• M7: 4,462,205 km (0.084 R)
• M8: 5,590,622 km (0.098 R)
• M9: 6,675,805 km (0.048 R)
• M10: 7,602,115 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.7

Radius: 13.4

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.16 AU - 2.4 AU

Year: 2335 Days

Day: 11.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,202,387 km

• M1: 166,652 km (0.1 R)
• M2: 1,215,931 km (0.079 R)
• M3: 1,746,555 km (0.059 R)
• M4: 2,218,836 km (0.104 R)
• M5: 2,658,055 km (0.05 R)
• M6: 3,350,843 km (0.094 R)
• M7: 3,849,452 km (0.066 R)
• M8: 4,877,040 km (0.099 R)
• M9: 5,455,834 km (0.041 R)
• M10: 6,126,482 km (0.076 R)
• M11: 7,235,151 km (0.109 R)
• M12: 8,158,320 km (0.104 R)
• M13: 8,886,263 km (0.082 R)
• M14: 11,121,405 km (0.11 R)
• M15: 11,980,246 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.6

Radius: 8

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.95 AU - 3.39 AU

Year: 3828 Days

Day: 8.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,202,387 km

• M1: 99,483 km (0.098 R)
• M2: 365,767 km (0.102 R)
• M3: 1,061,846 km (0.082 R)
• M4: 1,424,022 km (0.067 R)
• M5: 1,748,350 km (0.114 R)
• M6: 2,189,066 km (0.062 R)
• M7: 2,458,192 km (0.087 R)
• M8: 2,765,466 km (0.054 R)
• M9: 3,046,860 km (0.05 R)
• M10: 3,805,022 km (0.106 R)
• M11: 4,614,945 km (0.05 R)
• M12: 4,916,833 km (0.073 R)
• M13: 5,407,215 km (0.111 R)
• M14: 5,876,055 km (0.108 R)
• M15: 8,260,944 km (0.107 R)
• M16: 8,707,194 km (0.095 R)
• M17: 9,351,662 km (0.025 R)
• M18: 10,220,826 km (0.108 R)
• M19: 11,060,519 km (0.073 R)
• M20: 12,206,737 km (0.083 R)
• M21: 12,967,891 km (0.074 R)
• M22: 13,999,369 km (0.111 R)
• M23: 14,535,228 km (0.064 R)
• M24: 17,814,414 km (0.108 R)
• M25: 18,443,622 km (0.095 R)
• M26: 19,265,812 km (0.082 R)
• M27: 19,746,470 km (0.083 R)
• M28: 21,300,044 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.4

Radius: 5.8

Gravity: 12.79 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.63 AU - 5.99 AU

Year: 9499 Days

Day: 23.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,202,387 km

• M1: 73,602 km (0.092 R)
• M2: 343,776 km (0.093 R)
• M3: 547,678 km (0.049 R)
• M4: 1,206,656 km (0.093 R)
• M5: 1,394,103 km (0.077 R)
• M6: 1,587,682 km (0.111 R)
• M7: 1,966,165 km (0.069 R)
• M8: 2,421,092 km (0.096 R)
• M9: 3,047,907 km (0.038 R)
• M10: 3,354,134 km (0.102 R)
• M11: 5,263,302 km (0.11 R)
• M12: 5,704,466 km (0.114 R)
• M13: 6,000,819 km (0.053 R)
• M14: 8,329,460 km (0.107 R)
• M15: 8,797,552 km (0.093 R)
• M16: 10,796,927 km (0.117 R)
• M17: 11,148,781 km (0.078 R)
• M18: 12,035,149 km (0.099 R)
• M19: 13,365,223 km (0.057 R)
• M20: 19,818,726 km (0.117 R)
• M21: 26,508,892 km (0.076 R)
• M22: 27,612,775 km (0.078 R)
• M23: 28,651,433 km (0.108 R)
• M24: 30,506,297 km (0.107 R)
• M25: 33,915,483 km (0.08 R)
• M26: 34,237,417 km (0.038 R)
• M27: 38,145,811 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.6

Radius: 7.9

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.04 AU - 9.04 AU

Year: 14043 Days

Day: 19.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,202,387 km

• M1: 101,577 km (0.032 R)
• M2: 354,846 km (0.093 R)
• M3: 1,182,870 km (0.107 R)
• M4: 2,226,016 km (0.093 R)
• M5: 2,501,576 km (0.053 R)
• M6: 3,050,899 km (0.038 R)
• M7: 3,366,999 km (0.037 R)
• M8: 4,180,812 km (0.057 R)
• M9: 4,824,382 km (0.089 R)
• M10: 5,567,434 km (0.101 R)
• M11: 7,279,582 km (0.082 R)
• M12: 12,120,120 km (0.053 R)
• M13: 13,358,641 km (0.116 R)
• M14: 14,274,330 km (0.099 R)
• M15: 16,895,135 km (0.078 R)
• M16: 19,904,146 km (0.088 R)
• M17: 20,155,770 km (0.025 R)
• M18: 21,534,763 km (0.109 R)
• M19: 21,800,000 km (0.047 R)
• M20: 23,907,685 km (0.106 R)
• M21: 25,451,684 km (0.115 R)
• M22: 28,311,547 km (0.099 R)
• M23: 30,703,766 km (0.114 R)
• M24: 32,875,478 km (0.067 R)
• M25: 33,939,119 km (0.026 R)
• M26: 45,575,291 km (0.044 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 12,268 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit