🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.52 AU - 0.78 AU

Year: 333 Days

Day: 22.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,436,644 km

• M1: 36,651 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.5

Radius: 14.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.99 AU - 0.99 AU

Year: 626 Days

Day: 9.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,436,644 km

• M1: 193,430 km (0.072 R)
• M2: 770,878 km (0.097 R)
• M3: 1,332,767 km (0.106 R)
• M4: 1,810,433 km (0.117 R)
• M5: 2,404,786 km (0.101 R)
• M6: 3,234,605 km (0.092 R)
• M7: 3,884,907 km (0.117 R)
• M8: 4,605,969 km (0.091 R)
• M9: 5,130,010 km (0.108 R)
• M10: 5,836,561 km (0.118 R)
• M11: 6,946,428 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.6

Radius: 9.3

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.22 AU - 2.62 AU

Year: 2394 Days

Day: 12.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,436,644 km

• M1: 115,639 km (0.066 R)
• M2: 1,035,516 km (0.107 R)
• M3: 1,489,995 km (0.093 R)
• M4: 1,799,513 km (0.114 R)
• M5: 3,086,503 km (0.059 R)
• M6: 3,388,841 km (0.073 R)
• M7: 5,510,587 km (0.11 R)
• M8: 5,935,146 km (0.097 R)
• M9: 6,674,758 km (0.099 R)
• M10: 8,365,513 km (0.067 R)
• M11: 10,191,654 km (0.053 R)
• M12: 12,008,969 km (0.106 R)
• M13: 12,916,579 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.3

Radius: 9.4

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.17 AU - 3.25 AU

Year: 3657 Days

Day: 11.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,436,644 km

• M1: 116,836 km (0.08 R)
• M2: 487,988 km (0.091 R)
• M3: 1,131,708 km (0.047 R)
• M4: 2,013,887 km (0.097 R)
• M5: 2,931,669 km (0.082 R)
• M6: 3,522,731 km (0.036 R)
• M7: 4,343,574 km (0.115 R)
• M8: 4,705,751 km (0.061 R)
• M9: 5,337,203 km (0.05 R)
• M10: 5,860,646 km (0.079 R)
• M11: 7,541,677 km (0.085 R)
• M12: 9,373,204 km (0.107 R)
• M13: 12,002,088 km (0.07 R)
• M14: 12,947,097 km (0.078 R)
• M15: 15,035,633 km (0.113 R)
• M16: 15,343,954 km (0.106 R)
• M17: 15,867,098 km (0.053 R)
• M18: 17,565,034 km (0.074 R)
• M19: 18,022,205 km (0.09 R)
• M20: 20,116,126 km (0.082 R)
• M21: 20,679,662 km (0.114 R)
• M22: 21,382,772 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 413.2

Radius: 5.2

Gravity: 15.28 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.22 AU - 7.88 AU

Year: 11902 Days

Day: 24.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,436,644 km

• M1: 65,075 km (0.096 R)
• M2: 371,302 km (0.107 R)
• M3: 554,859 km (0.083 R)
• M4: 724,502 km (0.108 R)
• M5: 1,457,382 km (0.116 R)
• M6: 2,885,294 km (0.101 R)
• M7: 3,405,745 km (0.032 R)
• M8: 3,933,826 km (0.048 R)
• M9: 4,315,001 km (0.082 R)
• M10: 4,514,565 km (0.11 R)
• M11: 5,674,397 km (0.071 R)
• M12: 5,914,202 km (0.056 R)
• M13: 6,865,046 km (0.084 R)
• M14: 7,621,413 km (0.102 R)
• M15: 8,041,185 km (0.096 R)
• M16: 9,826,486 km (0.107 R)
• M17: 10,122,839 km (0.077 R)
• M18: 10,578,365 km (0.12 R)
• M19: 11,367,942 km (0.09 R)
• M20: 11,804,618 km (0.11 R)
• M21: 15,980,045 km (0.08 R)
• M22: 16,666,998 km (0.04 R)
• M23: 17,088,415 km (0.077 R)
• M24: 21,207,144 km (0.118 R)
• M25: 23,582,459 km (0.111 R)
• M26: 25,199,761 km (0.079 R)
• M27: 25,476,218 km (0.113 R)
• M28: 31,334,920 km (0.063 R)
• M29: 31,761,872 km (0.071 R)
• M30: 37,310,457 km (0.067 R)
• M31: 37,549,814 km (0.101 R)
• M32: 38,152,394 km (0.076 R)
• M33: 43,207,755 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.6

Radius: 7.9

Gravity: 15.97 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.77 AU - 10.21 AU

Year: 20076 Days

Day: 17.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 86,436,644 km

• M1: 99,034 km (0.096 R)
• M2: 920,924 km (0.098 R)
• M3: 1,415,196 km (0.106 R)
• M4: 2,139,250 km (0.113 R)
• M5: 4,092,998 km (0.076 R)
• M6: 5,063,738 km (0.118 R)
• M7: 7,965,787 km (0.098 R)
• M8: 9,062,190 km (0.105 R)
• M9: 9,826,785 km (0.116 R)
• M10: 10,318,214 km (0.069 R)
• M11: 12,663,161 km (0.051 R)
• M12: 13,769,138 km (0.081 R)
• M13: 14,778,474 km (0.09 R)
• M14: 15,919,757 km (0.095 R)
• M15: 20,279,338 km (0.044 R)
• M16: 23,265,910 km (0.098 R)
• M17: 24,471,668 km (0.108 R)
• M18: 25,033,259 km (0.097 R)
• M19: 25,374,192 km (0.078 R)
• M20: 26,065,634 km (0.096 R)
• M21: 26,769,492 km (0.082 R)
• M22: 28,092,835 km (0.101 R)
• M23: 31,657,153 km (0.079 R)
• M24: 37,849,308 km (0.095 R)
• M25: 45,812,254 km (0.119 R)
• M26: 47,528,590 km (0.028 R)
• M27: 48,402,541 km (0.088 R)
• M28: 60,964,124 km (0.081 R)
• M29: 63,881,881 km (0.078 R)
• M30: 64,946,120 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 12,655 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit