🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.53 AU - 0.53 AU

Year: 245 Days

Day: 25.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.1

Radius: 10.2

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.91 AU - 0.93 AU

Year: 561 Days

Day: 14.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,555,965 km

• M1: 126,859 km (0.116 R)
• M2: 446,101 km (0.106 R)
• M3: 795,113 km (0.068 R)
• M4: 1,395,299 km (0.098 R)
• M5: 1,925,175 km (0.096 R)
• M6: 2,510,103 km (0.1 R)
• M7: 3,232,062 km (0.109 R)
• M8: 3,907,197 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.6

Radius: 13.1

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.55 AU - 1.69 AU

Year: 1311 Days

Day: 13 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,555,965 km

• M1: 163,062 km (0.12 R)
• M2: 743,801 km (0.057 R)
• M3: 1,783,057 km (0.12 R)
• M4: 3,795,896 km (0.068 R)
• M5: 4,568,420 km (0.06 R)
• M6: 5,041,448 km (0.101 R)
• M7: 5,526,295 km (0.085 R)
• M8: 6,042,108 km (0.104 R)
• M9: 6,637,358 km (0.105 R)
• M10: 7,246,222 km (0.109 R)
• M11: 9,783,252 km (0.077 R)
• M12: 11,542,224 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.2

Radius: 8.1

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.04 AU - 2.52 AU

Year: 2189 Days

Day: 7.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,555,965 km

• M1: 100,829 km (0.068 R)
• M2: 368,011 km (0.12 R)
• M3: 808,726 km (0.108 R)
• M4: 1,129,763 km (0.105 R)
• M5: 1,535,622 km (0.081 R)
• M6: 1,939,836 km (0.102 R)
• M7: 2,427,375 km (0.083 R)
• M8: 3,309,404 km (0.039 R)
• M9: 3,739,049 km (0.086 R)
• M10: 4,125,161 km (0.094 R)
• M11: 4,452,930 km (0.053 R)
• M12: 5,091,564 km (0.081 R)
• M13: 5,993,339 km (0.104 R)
• M14: 7,984,338 km (0.111 R)
• M15: 11,182,890 km (0.044 R)
• M16: 12,401,215 km (0.107 R)
• M17: 12,697,718 km (0.116 R)
• M18: 13,795,766 km (0.095 R)
• M19: 16,179,459 km (0.114 R)
• M20: 17,468,543 km (0.076 R)
• M21: 18,165,370 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 10

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.1 AU - 3.78 AU

Year: 4057 Days

Day: 14 Hours

Environment

Temp: -202 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,555,965 km

• M1: 124,316 km (0.085 R)
• M2: 534,962 km (0.107 R)
• M3: 941,120 km (0.035 R)
• M4: 1,915,451 km (0.042 R)
• M5: 2,271,195 km (0.047 R)
• M6: 3,117,769 km (0.101 R)
• M7: 3,790,660 km (0.102 R)
• M8: 4,598,489 km (0.082 R)
• M9: 5,873,362 km (0.107 R)
• M10: 7,229,168 km (0.094 R)
• M11: 7,656,569 km (0.12 R)
• M12: 8,719,461 km (0.056 R)
• M13: 9,774,874 km (0.117 R)
• M14: 14,319,807 km (0.059 R)
• M15: 15,597,224 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.5

Radius: 10.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.42 AU - 5.72 AU

Year: 7258 Days

Day: 14.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,555,965 km

• M1: 129,402 km (0.094 R)
• M2: 506,987 km (0.103 R)
• M3: 1,444,966 km (0.043 R)
• M4: 1,820,606 km (0.08 R)
• M5: 2,294,831 km (0.078 R)
• M6: 3,088,598 km (0.062 R)
• M7: 3,790,810 km (0.099 R)
• M8: 5,213,486 km (0.044 R)
• M9: 5,758,920 km (0.044 R)
• M10: 6,963,930 km (0.061 R)
• M11: 8,822,385 km (0.111 R)
• M12: 10,185,670 km (0.099 R)
• M13: 11,039,126 km (0.109 R)
• M14: 15,973,163 km (0.119 R)
• M15: 20,834,495 km (0.096 R)
• M16: 22,285,595 km (0.059 R)
• M17: 24,131,034 km (0.068 R)
• M18: 25,133,340 km (0.094 R)
• M19: 25,473,525 km (0.102 R)
• M20: 27,941,591 km (0.086 R)
• M21: 28,675,069 km (0.034 R)
• M22: 29,046,521 km (0.104 R)
• M23: 30,661,430 km (0.105 R)
• M24: 32,737,998 km (0.099 R)
• M25: 35,118,100 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.9

Radius: 14.1

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.97 AU - 6.37 AU

Year: 7474 Days

Day: 14.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,555,965 km

• M1: 176,376 km (0.076 R)
• M2: 1,113,158 km (0.109 R)
• M3: 1,688,960 km (0.066 R)
• M4: 2,833,533 km (0.03 R)
• M5: 3,622,213 km (0.036 R)
• M6: 4,445,450 km (0.091 R)
• M7: 4,916,384 km (0.113 R)
• M8: 5,513,280 km (0.054 R)
• M9: 6,327,392 km (0.082 R)
• M10: 7,523,127 km (0.057 R)
• M11: 7,993,762 km (0.094 R)
• M12: 8,994,273 km (0.103 R)
• M13: 10,552,634 km (0.075 R)
• M14: 12,071,501 km (0.076 R)
• M15: 13,847,527 km (0.106 R)
• M16: 23,203,677 km (0.059 R)
• M17: 25,584,078 km (0.116 R)
• M18: 27,565,502 km (0.105 R)
• M19: 32,137,961 km (0.115 R)
• M20: 32,963,741 km (0.119 R)
• M21: 34,657,488 km (0.104 R)
• M22: 37,874,441 km (0.117 R)
• M23: 38,911,902 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745

Radius: 7.2

Gravity: 14.37 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 9.43 AU - 12.87 AU

Year: 23673 Days

Day: 23.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 87,555,965 km

• M1: 89,609 km (0.107 R)
• M2: 832,063 km (0.094 R)
• M3: 1,153,699 km (0.09 R)
• M4: 1,662,631 km (0.103 R)
• M5: 1,888,823 km (0.109 R)
• M6: 2,289,595 km (0.082 R)
• M7: 2,670,172 km (0.068 R)
• M8: 3,036,986 km (0.077 R)
• M9: 3,681,155 km (0.088 R)
• M10: 3,969,729 km (0.072 R)
• M11: 4,702,011 km (0.038 R)
• M12: 5,771,785 km (0.091 R)
• M13: 6,995,346 km (0.097 R)
• M14: 9,463,412 km (0.074 R)
• M15: 11,154,616 km (0.101 R)
• M16: 11,421,199 km (0.097 R)
• M17: 12,036,645 km (0.104 R)
• M18: 13,709,897 km (0.049 R)
• M19: 14,015,974 km (0.094 R)
• M20: 15,865,153 km (0.081 R)
• M21: 16,202,646 km (0.093 R)
• M22: 16,804,628 km (0.102 R)
• M23: 17,155,285 km (0.089 R)
• M24: 23,778,881 km (0.092 R)
• M25: 29,706,397 km (0.095 R)
• M26: 36,548,405 km (0.052 R)
• M27: 36,842,066 km (0.08 R)
• M28: 41,917,024 km (0.082 R)
• M29: 48,846,996 km (0.106 R)
• M30: 50,645,910 km (0.111 R)
• M31: 52,302,408 km (0.101 R)
• M32: 54,375,684 km (0.088 R)
• M33: 55,142,972 km (0.107 R)
• M34: 56,307,292 km (0.111 R)
• M35: 57,092,681 km (0.091 R)
• M36: 58,886,359 km (0.053 R)
• M37: 69,315,126 km (0.097 R)
• M38: 72,275,070 km (0.071 R)
• M39: 74,137,862 km (0.07 R)
• M40: 76,510,933 km (0.062 R)
• M41: 78,201,988 km (0.079 R)
• M42: 78,934,269 km (0.109 R)
• M43: 83,933,531 km (0.058 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 13,033 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit