🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.45 AU - 0.65 AU

Year: 268 Days

Day: 18.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,332,038 km

• M1: 79,586 km (0.1 R)
• M2: 112,797 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 9.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.67 AU - 0.79 AU

Year: 409 Days

Day: 7.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,332,038 km

• M1: 121,922 km (0.062 R)
• M2: 440,566 km (0.113 R)
• M3: 749,037 km (0.03 R)
• M4: 1,221,766 km (0.109 R)
• M5: 2,023,910 km (0.115 R)
• M6: 2,336,270 km (0.089 R)
• M7: 2,966,975 km (0.084 R)
• M8: 3,743,088 km (0.115 R)
• M9: 4,051,260 km (0.119 R)
• M10: 4,376,336 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.8

Radius: 12.9

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.76 AU - 0.78 AU

Year: 443 Days

Day: 5.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,332,038 km

• M1: 160,369 km (0.105 R)
• M2: 563,236 km (0.066 R)
• M3: 1,065,436 km (0.049 R)
• M4: 1,562,251 km (0.101 R)
• M5: 2,081,505 km (0.108 R)
• M6: 2,571,438 km (0.091 R)
• M7: 3,192,718 km (0.09 R)
• M8: 4,224,345 km (0.044 R)
• M9: 5,139,136 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.6

Radius: 12.3

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.92 AU - 2.46 AU

Year: 2126 Days

Day: 12.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,332,038 km

• M1: 153,039 km (0.076 R)
• M2: 652,696 km (0.119 R)
• M3: 1,326,784 km (0.068 R)
• M4: 1,778,270 km (0.113 R)
• M5: 2,284,210 km (0.058 R)
• M6: 2,931,370 km (0.031 R)
• M7: 4,673,437 km (0.09 R)
• M8: 5,239,366 km (0.072 R)
• M9: 6,077,413 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.5

Radius: 11.4

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.8 AU - 2.9 AU

Year: 2363 Days

Day: 8.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,332,038 km

• M1: 141,819 km (0.052 R)
• M2: 631,153 km (0.113 R)
• M3: 1,003,951 km (0.117 R)
• M4: 1,482,664 km (0.11 R)
• M5: 1,936,544 km (0.107 R)
• M6: 2,376,362 km (0.098 R)
• M7: 2,764,269 km (0.117 R)
• M8: 3,616,379 km (0.081 R)
• M9: 4,635,589 km (0.098 R)
• M10: 5,477,526 km (0.111 R)
• M11: 8,716,320 km (0.108 R)
• M12: 9,241,109 km (0.112 R)
• M13: 10,246,108 km (0.041 R)
• M14: 10,682,784 km (0.075 R)
• M15: 12,887,109 km (0.086 R)
• M16: 13,568,976 km (0.117 R)
• M17: 14,319,658 km (0.042 R)
• M18: 16,738,655 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 13.7

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.47 AU - 3.57 AU

Year: 3443 Days

Day: 13 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,332,038 km

• M1: 170,392 km (0.069 R)
• M2: 838,197 km (0.043 R)
• M3: 1,851,274 km (0.06 R)
• M4: 2,341,955 km (0.091 R)
• M5: 2,919,702 km (0.111 R)
• M6: 3,775,551 km (0.052 R)
• M7: 4,991,483 km (0.087 R)
• M8: 5,676,790 km (0.094 R)
• M9: 6,216,689 km (0.098 R)
• M10: 6,666,979 km (0.079 R)
• M11: 8,010,517 km (0.103 R)
• M12: 8,989,486 km (0.112 R)
• M13: 9,965,761 km (0.05 R)
• M14: 10,458,836 km (0.091 R)
• M15: 11,054,684 km (0.097 R)
• M16: 11,628,242 km (0.108 R)
• M17: 17,307,127 km (0.099 R)
• M18: 18,816,570 km (0.106 R)
• M19: 19,635,319 km (0.087 R)
• M20: 20,941,308 km (0.073 R)
• M21: 21,752,278 km (0.106 R)
• M22: 24,311,000 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.5

Radius: 12.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.43 AU - 3.97 AU

Year: 3755 Days

Day: 13.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,332,038 km

• M1: 157,377 km (0.115 R)
• M2: 646,712 km (0.09 R)
• M3: 1,178,682 km (0.095 R)
• M4: 1,701,377 km (0.066 R)
• M5: 3,596,183 km (0.06 R)
• M6: 4,880,182 km (0.066 R)
• M7: 5,601,094 km (0.065 R)
• M8: 6,478,037 km (0.11 R)
• M9: 8,435,375 km (0.076 R)
• M10: 9,216,575 km (0.067 R)
• M11: 11,129,782 km (0.117 R)
• M12: 13,341,886 km (0.076 R)
• M13: 15,004,517 km (0.076 R)
• M14: 16,528,620 km (0.101 R)
• M15: 17,077,345 km (0.085 R)
• M16: 20,315,690 km (0.111 R)
• M17: 21,073,104 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.4

Radius: 9.8

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.33 AU - 5.55 AU

Year: 7203 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,332,038 km

• M1: 122,221 km (0.119 R)
• M2: 490,232 km (0.114 R)
• M3: 826,977 km (0.03 R)
• M4: 1,347,428 km (0.1 R)
• M5: 2,012,839 km (0.102 R)
• M6: 2,844,005 km (0.114 R)
• M7: 3,153,074 km (0.067 R)
• M8: 4,297,348 km (0.118 R)
• M9: 4,993,577 km (0.035 R)
• M10: 5,415,144 km (0.06 R)
• M11: 6,159,543 km (0.066 R)
• M12: 8,590,807 km (0.094 R)
• M13: 9,557,060 km (0.082 R)
• M14: 12,073,446 km (0.074 R)
• M15: 12,834,899 km (0.083 R)
• M16: 14,817,370 km (0.092 R)
• M17: 15,249,558 km (0.032 R)
• M18: 16,334,292 km (0.116 R)
• M19: 17,265,539 km (0.088 R)
• M20: 18,656,799 km (0.115 R)
• M21: 21,503,647 km (0.096 R)
• M22: 22,540,659 km (0.116 R)
• M23: 23,112,721 km (0.091 R)
• M24: 24,627,998 km (0.078 R)
• M25: 27,299,218 km (0.082 R)
• M26: 28,136,816 km (0.111 R)
• M27: 29,961,162 km (0.058 R)
• M28: 30,852,466 km (0.047 R)
• M29: 34,057,451 km (0.106 R)
• M30: 37,137,372 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 548.9

Radius: 7.8

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.02 AU - 8.58 AU

Year: 12939 Days

Day: 18.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,332,038 km

• M1: 96,939 km (0.109 R)
• M2: 817,403 km (0.106 R)
• M3: 1,124,078 km (0.105 R)
• M4: 2,620,955 km (0.032 R)
• M5: 3,398,714 km (0.042 R)
• M6: 3,950,880 km (0.051 R)
• M7: 4,380,824 km (0.058 R)
• M8: 4,715,624 km (0.066 R)
• M9: 6,614,021 km (0.112 R)
• M10: 8,268,274 km (0.073 R)
• M11: 8,638,978 km (0.064 R)
• M12: 8,924,111 km (0.12 R)
• M13: 14,722,375 km (0.117 R)
• M14: 18,351,769 km (0.101 R)
• M15: 18,823,900 km (0.066 R)
• M16: 22,358,299 km (0.044 R)
• M17: 23,536,083 km (0.092 R)
• M18: 25,137,828 km (0.102 R)
• M19: 29,404,658 km (0.068 R)
• M20: 29,942,762 km (0.116 R)
• M21: 39,860,951 km (0.114 R)
• M22: 40,123,794 km (0.092 R)
• M23: 42,540,847 km (0.088 R)
• M24: 43,785,053 km (0.082 R)
• M25: 51,608,124 km (0.03 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 893.1

Radius: 7.9

Gravity: 14.31 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.8 AU - 8.48 AU

Year: 15235 Days

Day: 22.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,332,038 km

• M1: 98,286 km (0.106 R)
• M2: 757,863 km (0.109 R)
• M3: 1,601,894 km (0.041 R)
• M4: 2,140,895 km (0.086 R)
• M5: 2,563,808 km (0.069 R)
• M6: 2,916,560 km (0.096 R)
• M7: 4,562,585 km (0.102 R)
• M8: 5,046,684 km (0.052 R)
• M9: 6,076,666 km (0.083 R)
• M10: 7,707,133 km (0.117 R)
• M11: 8,045,673 km (0.108 R)
• M12: 8,546,377 km (0.073 R)
• M13: 9,014,768 km (0.112 R)
• M14: 10,522,714 km (0.095 R)
• M15: 13,676,537 km (0.115 R)
• M16: 14,317,414 km (0.106 R)
• M17: 16,518,896 km (0.106 R)
• M18: 17,409,901 km (0.082 R)
• M19: 18,676,247 km (0.092 R)
• M20: 25,087,713 km (0.092 R)
• M21: 26,700,677 km (0.114 R)
• M22: 30,851,569 km (0.099 R)
• M23: 37,165,197 km (0.095 R)
• M24: 39,828,488 km (0.116 R)
• M25: 42,167,900 km (0.059 R)
• M26: 46,638,632 km (0.076 R)
• M27: 56,871,725 km (0.034 R)
• M28: 60,021,658 km (0.069 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 11,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit