🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.58 AU - 0.7 AU

Year: 331 Days

Day: 18.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.8

Radius: 13.3

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.68 AU - 0.76 AU

Year: 394 Days

Day: 6.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 52.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,457,979 km

• M1: 165,455 km (0.117 R)
• M2: 620,831 km (0.118 R)
• M3: 1,060,200 km (0.091 R)
• M4: 1,561,054 km (0.047 R)
• M5: 2,080,607 km (0.08 R)
• M6: 2,587,146 km (0.085 R)
• M7: 3,204,985 km (0.074 R)
• M8: 3,688,485 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.6

Radius: 12.1

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.76 AU - 1.2 AU

Year: 626 Days

Day: 13.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,457,979 km

• M1: 150,495 km (0.108 R)
• M2: 535,112 km (0.044 R)
• M3: 1,130,212 km (0.099 R)
• M4: 1,751,791 km (0.046 R)
• M5: 2,395,511 km (0.107 R)
• M6: 3,110,888 km (0.095 R)
• M7: 3,532,155 km (0.08 R)
• M8: 3,936,967 km (0.111 R)
• M9: 4,565,278 km (0.107 R)
• M10: 5,494,730 km (0.065 R)
• M11: 6,431,661 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.4

Radius: 14.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.05 AU - 1.49 AU

Year: 924 Days

Day: 8.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,457,979 km

• M1: 185,352 km (0.063 R)
• M2: 822,639 km (0.09 R)
• M3: 1,294,321 km (0.078 R)
• M4: 1,937,592 km (0.088 R)
• M5: 2,416,604 km (0.111 R)
• M6: 3,156,365 km (0.036 R)
• M7: 3,899,418 km (0.093 R)
• M8: 4,822,886 km (0.026 R)
• M9: 5,534,822 km (0.099 R)
• M10: 6,138,449 km (0.06 R)
• M11: 6,764,965 km (0.089 R)
• M12: 7,301,124 km (0.053 R)
• M13: 7,888,745 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.9

Radius: 8.5

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.41 AU - 2.79 AU

Year: 2707 Days

Day: 13.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,457,979 km

• M1: 105,766 km (0.119 R)
• M2: 560,693 km (0.083 R)
• M3: 924,365 km (0.087 R)
• M4: 1,263,354 km (0.081 R)
• M5: 1,707,510 km (0.11 R)
• M6: 2,225,418 km (0.093 R)
• M7: 2,718,493 km (0.117 R)
• M8: 2,991,209 km (0.06 R)
• M9: 3,300,129 km (0.084 R)
• M10: 3,882,514 km (0.111 R)
• M11: 5,106,374 km (0.12 R)
• M12: 7,677,812 km (0.077 R)
• M13: 8,095,489 km (0.092 R)
• M14: 8,426,998 km (0.107 R)
• M15: 9,011,327 km (0.098 R)
• M16: 10,260,768 km (0.1 R)
• M17: 11,128,436 km (0.116 R)
• M18: 11,538,783 km (0.106 R)
• M19: 12,785,681 km (0.037 R)
• M20: 13,603,533 km (0.116 R)
• M21: 14,120,244 km (0.089 R)
• M22: 15,596,027 km (0.081 R)
• M23: 16,266,375 km (0.097 R)
• M24: 17,063,582 km (0.107 R)
• M25: 17,942,469 km (0.111 R)
• M26: 18,393,058 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.9

Radius: 11.6

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.67 AU - 3.33 AU

Year: 3355 Days

Day: 9.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,457,979 km

• M1: 144,362 km (0.034 R)
• M2: 549,623 km (0.091 R)
• M3: 1,123,181 km (0.089 R)
• M4: 1,502,860 km (0.053 R)
• M5: 1,900,940 km (0.107 R)
• M6: 2,632,773 km (0.099 R)
• M7: 3,009,311 km (0.027 R)
• M8: 3,387,494 km (0.053 R)
• M9: 3,853,641 km (0.093 R)
• M10: 4,527,729 km (0.113 R)
• M11: 4,960,067 km (0.064 R)
• M12: 5,933,201 km (0.119 R)
• M13: 6,916,807 km (0.08 R)
• M14: 7,492,011 km (0.096 R)
• M15: 8,192,877 km (0.106 R)
• M16: 8,837,345 km (0.105 R)
• M17: 9,376,944 km (0.071 R)
• M18: 11,559,427 km (0.058 R)
• M19: 12,537,349 km (0.09 R)
• M20: 13,089,664 km (0.104 R)
• M21: 13,881,037 km (0.099 R)
• M22: 14,288,691 km (0.038 R)
• M23: 16,904,260 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.2

Radius: 11.5

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.5 AU - 6.2 AU

Year: 7990 Days

Day: 15 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,457,979 km

• M1: 152,739 km (0.084 R)
• M2: 574,306 km (0.098 R)
• M3: 1,666,969 km (0.029 R)
• M4: 2,041,413 km (0.062 R)
• M5: 2,623,348 km (0.091 R)
• M6: 4,994,923 km (0.091 R)
• M7: 5,687,113 km (0.111 R)
• M8: 6,696,001 km (0.115 R)
• M9: 10,741,726 km (0.072 R)
• M10: 13,245,545 km (0.057 R)
• M11: 14,139,841 km (0.062 R)
• M12: 17,065,377 km (0.068 R)
• M13: 18,196,337 km (0.12 R)
• M14: 20,843,621 km (0.108 R)
• M15: 23,308,844 km (0.116 R)
• M16: 23,997,742 km (0.119 R)
• M17: 28,031,948 km (0.108 R)
• M18: 34,011,824 km (0.1 R)
• M19: 38,003,693 km (0.094 R)
• M20: 39,562,653 km (0.042 R)
• M21: 41,539,439 km (0.089 R)
• M22: 42,043,734 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.2

Radius: 4.9

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.93 AU - 8.09 AU

Year: 10725 Days

Day: 19.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,457,979 km

• M1: 60,886 km (0.086 R)
• M2: 235,168 km (0.07 R)
• M3: 396,883 km (0.032 R)
• M4: 1,057,208 km (0.071 R)
• M5: 1,209,798 km (0.077 R)
• M6: 1,455,288 km (0.117 R)
• M7: 1,759,121 km (0.073 R)
• M8: 2,379,803 km (0.055 R)
• M9: 2,855,823 km (0.11 R)
• M10: 3,155,019 km (0.095 R)
• M11: 3,664,101 km (0.106 R)
• M12: 5,080,194 km (0.032 R)
• M13: 7,123,402 km (0.1 R)
• M14: 11,911,132 km (0.09 R)
• M15: 12,488,430 km (0.084 R)
• M16: 12,684,852 km (0.088 R)
• M17: 15,150,674 km (0.088 R)
• M18: 15,770,757 km (0.041 R)
• M19: 16,058,135 km (0.068 R)
• M20: 18,294,324 km (0.104 R)
• M21: 20,867,108 km (0.068 R)
• M22: 24,352,439 km (0.048 R)
• M23: 27,372,222 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480.7

Radius: 3.7

Gravity: 35.11 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 6.99 AU - 7.71 AU

Year: 12866 Days

Day: 19.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,457,979 km

• M1: 46,076 km (0.112 R)
• M2: 161,865 km (0.097 R)
• M3: 413,638 km (0.114 R)
• M4: 619,485 km (0.076 R)
• M5: 1,211,444 km (0.05 R)
• M6: 2,241,574 km (0.082 R)
• M7: 3,292,051 km (0.1 R)
• M8: 3,465,135 km (0.091 R)
• M9: 5,306,087 km (0.109 R)
• M10: 6,490,902 km (0.076 R)
• M11: 8,559,392 km (0.042 R)
• M12: 9,174,089 km (0.072 R)
• M13: 12,218,855 km (0.047 R)
• M14: 17,092,155 km (0.085 R)
• M15: 17,761,007 km (0.106 R)
• M16: 19,953,514 km (0.079 R)
• M17: 20,611,595 km (0.114 R)
• M18: 26,700,677 km (0.094 R)
• M19: 31,621,549 km (0.117 R)
• M20: 31,843,403 km (0.089 R)
• M21: 34,119,235 km (0.1 R)
• M22: 39,118,946 km (0.03 R)
• M23: 41,195,364 km (0.095 R)
• M24: 41,859,130 km (0.071 R)
• M25: 42,664,864 km (0.084 R)
• M26: 44,864,102 km (0.072 R)
• M27: 46,562,337 km (0.118 R)
• M28: 49,936,068 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.5

Radius: 7

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 10.15 AU - 11.75 AU

Year: 23396 Days

Day: 18.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,457,979 km

• M1: 95,443 km (0.073 R)
• M2: 421,268 km (0.093 R)
• M3: 746,493 km (0.098 R)
• M4: 1,124,228 km (0.069 R)
• M5: 1,364,781 km (0.064 R)
• M6: 1,670,709 km (0.061 R)
• M7: 1,934,151 km (0.088 R)
• M8: 3,278,886 km (0.087 R)
• M9: 4,506,636 km (0.116 R)
• M10: 5,828,333 km (0.095 R)
• M11: 11,664,445 km (0.094 R)
• M12: 15,496,544 km (0.104 R)
• M13: 24,059,227 km (0.083 R)
• M14: 28,948,983 km (0.077 R)
• M15: 45,575,889 km (0.083 R)
• M16: 54,618,183 km (0.038 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 15,128 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit