🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.44 AU - 0.6 AU

Year: 246 Days

Day: 35.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,208,075 km

• M1: 426,803 km (0.078 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.57 AU - 0.71 AU

Year: 336 Days

Day: 39.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,208,075 km

• M1: 105,616 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.9

Radius: 8.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.86 AU - 1.06 AU

Year: 617 Days

Day: 5.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,208,075 km

• M1: 120,576 km (0.097 R)
• M2: 521,797 km (0.088 R)
• M3: 901,477 km (0.06 R)
• M4: 1,408,913 km (0.069 R)
• M5: 1,824,496 km (0.119 R)
• M6: 2,311,885 km (0.087 R)
• M7: 2,854,926 km (0.068 R)
• M8: 3,513,605 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.3

Radius: 14.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.03 AU - 3.05 AU

Year: 2656 Days

Day: 6.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,208,075 km

• M1: 175,628 km (0.054 R)
• M2: 691,890 km (0.082 R)
• M3: 1,177,036 km (0.077 R)
• M4: 1,637,797 km (0.074 R)
• M5: 2,131,770 km (0.082 R)
• M6: 2,874,373 km (0.12 R)
• M7: 3,851,397 km (0.075 R)
• M8: 4,606,118 km (0.05 R)
• M9: 5,329,873 km (0.06 R)
• M10: 6,704,079 km (0.1 R)
• M11: 7,447,730 km (0.094 R)
• M12: 8,020,241 km (0.087 R)
• M13: 8,534,110 km (0.102 R)
• M14: 9,819,604 km (0.09 R)
• M15: 10,848,538 km (0.082 R)
• M16: 12,734,519 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458

Radius: 8.7

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.77 AU - 4.31 AU

Year: 4369 Days

Day: 13.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,208,075 km

• M1: 108,907 km (0.079 R)
• M2: 412,142 km (0.033 R)
• M3: 830,867 km (0.114 R)
• M4: 1,447,509 km (0.084 R)
• M5: 2,341,655 km (0.104 R)
• M6: 2,634,568 km (0.107 R)
• M7: 2,917,607 km (0.109 R)
• M8: 5,118,342 km (0.103 R)
• M9: 6,202,029 km (0.097 R)
• M10: 6,675,955 km (0.03 R)
• M11: 7,431,873 km (0.118 R)
• M12: 8,278,746 km (0.12 R)
• M13: 9,075,953 km (0.055 R)
• M14: 9,844,138 km (0.11 R)
• M15: 10,738,584 km (0.096 R)
• M16: 11,641,856 km (0.102 R)
• M17: 13,114,497 km (0.11 R)
• M18: 13,895,697 km (0.104 R)
• M19: 15,020,075 km (0.071 R)
• M20: 15,820,573 km (0.08 R)
• M21: 16,988,783 km (0.069 R)
• M22: 17,332,858 km (0.047 R)
• M23: 19,558,725 km (0.084 R)
• M24: 20,000,338 km (0.093 R)
• M25: 20,772,712 km (0.119 R)
• M26: 21,631,703 km (0.051 R)
• M27: 22,860,051 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.5

Radius: 8.6

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.74 AU - 3.74 AU

Year: 4745 Days

Day: 14.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,208,075 km

• M1: 106,962 km (0.099 R)
• M2: 423,811 km (0.087 R)
• M3: 694,882 km (0.064 R)
• M4: 1,259,913 km (0.058 R)
• M5: 1,964,519 km (0.085 R)
• M6: 2,390,574 km (0.098 R)
• M7: 2,702,934 km (0.067 R)
• M8: 4,257,555 km (0.103 R)
• M9: 4,561,688 km (0.035 R)
• M10: 6,306,597 km (0.103 R)
• M11: 7,358,869 km (0.104 R)
• M12: 8,288,320 km (0.112 R)
• M13: 11,798,186 km (0.091 R)
• M14: 12,664,806 km (0.025 R)
• M15: 15,367,740 km (0.119 R)
• M16: 16,773,212 km (0.111 R)
• M17: 17,980,168 km (0.12 R)
• M18: 20,504,931 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.8

Radius: 10.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.88 AU - 6.48 AU

Year: 8880 Days

Day: 8.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,208,075 km

• M1: 134,638 km (0.111 R)
• M2: 642,224 km (0.072 R)
• M3: 1,227,301 km (0.07 R)
• M4: 1,706,014 km (0.086 R)
• M5: 2,082,103 km (0.112 R)
• M6: 2,496,190 km (0.035 R)
• M7: 2,965,030 km (0.049 R)
• M8: 3,403,800 km (0.12 R)
• M9: 3,790,361 km (0.112 R)
• M10: 4,845,625 km (0.057 R)
• M11: 6,487,012 km (0.074 R)
• M12: 7,157,211 km (0.059 R)
• M13: 7,990,172 km (0.079 R)
• M14: 8,635,687 km (0.093 R)
• M15: 9,099,290 km (0.034 R)
• M16: 10,448,813 km (0.11 R)
• M17: 11,469,968 km (0.091 R)
• M18: 12,291,709 km (0.105 R)
• M19: 15,417,557 km (0.06 R)
• M20: 17,796,462 km (0.069 R)
• M21: 18,341,297 km (0.109 R)
• M22: 18,687,467 km (0.048 R)
• M23: 19,607,943 km (0.102 R)
• M24: 19,969,969 km (0.102 R)
• M25: 24,003,876 km (0.086 R)
• M26: 24,418,262 km (0.117 R)
• M27: 25,346,816 km (0.054 R)
• M28: 25,690,143 km (0.105 R)
• M29: 26,386,372 km (0.045 R)
• M30: 28,273,848 km (0.087 R)
• M31: 34,160,075 km (0.034 R)
• M32: 35,965,572 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993

Radius: 4.6

Gravity: 46.93 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.65 AU - 7.09 AU

Year: 10547 Days

Day: 21.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 56,208,075 km

• M1: 57,296 km (0.12 R)
• M2: 278,701 km (0.096 R)
• M3: 526,884 km (0.118 R)
• M4: 1,879,996 km (0.118 R)
• M5: 2,698,895 km (0.112 R)
• M6: 2,994,650 km (0.09 R)
• M7: 5,346,478 km (0.097 R)
• M8: 6,909,028 km (0.087 R)
• M9: 7,861,667 km (0.117 R)
• M10: 8,322,429 km (0.056 R)
• M11: 12,185,794 km (0.076 R)
• M12: 13,765,846 km (0.067 R)
• M13: 14,164,525 km (0.114 R)
• M14: 15,335,727 km (0.102 R)
• M15: 16,719,507 km (0.115 R)
• M16: 17,403,169 km (0.089 R)
• M17: 18,184,369 km (0.068 R)
• M18: 19,070,437 km (0.066 R)
• M19: 19,900,556 km (0.09 R)
• M20: 22,535,274 km (0.093 R)
• M21: 23,840,665 km (0.117 R)
• M22: 29,567,720 km (0.057 R)
• M23: 31,472,250 km (0.114 R)
• M24: 36,272,996 km (0.033 R)
• M25: 36,778,337 km (0.093 R)
• M26: 38,322,487 km (0.064 R)
• M27: 40,312,737 km (0.061 R)
• M28: 43,354,809 km (0.091 R)
• M29: 48,047,695 km (0.077 R)
• M30: 48,199,536 km (0.113 R)
• M31: 48,810,195 km (0.062 R)
• M32: 49,117,469 km (0.074 R)
• M33: 52,101,198 km (0.106 R)
• M34: 52,583,053 km (0.099 R)
• M35: 53,882,610 km (0.06 R)
• M36: 55,704,263 km (0.049 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 14,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit