🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 14.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.4

Radius: 10.3

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.57 AU - 0.79 AU

Year: 362 Days

Day: 12.7 Hours

Environment

Temp: -133 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,173,160 km

• M1: 128,056 km (0.109 R)
• M2: 454,927 km (0.116 R)
• M3: 851,810 km (0.061 R)
• M4: 1,362,238 km (0.12 R)
• M5: 2,478,837 km (0.067 R)
• M6: 2,952,912 km (0.068 R)
• M7: 3,674,572 km (0.098 R)
• M8: 4,306,474 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.5

Radius: 11.7

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.77 AU - 1.01 AU

Year: 542 Days

Day: 7.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,173,160 km

• M1: 149,149 km (0.099 R)
• M2: 543,938 km (0.07 R)
• M3: 1,391,111 km (0.081 R)
• M4: 1,927,419 km (0.104 R)
• M5: 2,792,693 km (0.08 R)
• M6: 3,333,190 km (0.112 R)
• M7: 3,831,650 km (0.084 R)
• M8: 4,200,858 km (0.115 R)
• M9: 4,896,937 km (0.115 R)
• M10: 5,315,960 km (0.083 R)
• M11: 6,017,574 km (0.103 R)
• M12: 7,090,041 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.8

Radius: 8.6

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.77 AU - 2.91 AU

Year: 3090 Days

Day: 6.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,173,160 km

• M1: 107,411 km (0.112 R)
• M2: 423,063 km (0.116 R)
• M3: 1,151,006 km (0.09 R)
• M4: 1,729,351 km (0.11 R)
• M5: 3,201,544 km (0.083 R)
• M6: 3,793,652 km (0.025 R)
• M7: 4,360,479 km (0.086 R)
• M8: 5,024,544 km (0.088 R)
• M9: 6,528,002 km (0.074 R)
• M10: 7,674,371 km (0.085 R)
• M11: 7,987,928 km (0.098 R)
• M12: 9,588,476 km (0.101 R)
• M13: 9,952,746 km (0.103 R)
• M14: 11,319,024 km (0.052 R)
• M15: 12,028,118 km (0.063 R)
• M16: 12,806,176 km (0.114 R)
• M17: 13,086,373 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.7

Radius: 14

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.61 AU - 5.31 AU

Year: 7132 Days

Day: 13.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,173,160 km

• M1: 174,132 km (0.054 R)
• M2: 1,055,114 km (0.09 R)
• M3: 1,830,480 km (0.099 R)
• M4: 2,391,920 km (0.116 R)
• M5: 3,015,444 km (0.113 R)
• M6: 5,616,054 km (0.047 R)
• M7: 6,428,370 km (0.093 R)
• M8: 7,127,142 km (0.099 R)
• M9: 7,842,519 km (0.084 R)
• M10: 8,287,423 km (0.071 R)
• M11: 10,118,800 km (0.117 R)
• M12: 11,759,141 km (0.1 R)
• M13: 12,252,365 km (0.055 R)
• M14: 14,671,213 km (0.101 R)
• M15: 18,152,654 km (0.101 R)
• M16: 20,371,939 km (0.106 R)
• M17: 22,628,922 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.1

Radius: 6.5

Gravity: 14.35 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.8 AU - 9.96 AU

Year: 20052 Days

Day: 17.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 73,173,160 km

• M1: 81,531 km (0.05 R)
• M2: 558,748 km (0.072 R)
• M3: 902,374 km (0.105 R)
• M4: 1,567,935 km (0.099 R)
• M5: 1,957,339 km (0.028 R)
• M6: 2,453,555 km (0.076 R)
• M7: 2,928,378 km (0.102 R)
• M8: 3,406,493 km (0.117 R)
• M9: 4,619,732 km (0.109 R)
• M10: 6,014,732 km (0.069 R)
• M11: 7,241,883 km (0.063 R)
• M12: 8,113,889 km (0.105 R)
• M13: 8,892,397 km (0.075 R)
• M14: 11,210,864 km (0.096 R)
• M15: 11,654,273 km (0.075 R)
• M16: 12,109,349 km (0.104 R)
• M17: 15,245,669 km (0.109 R)
• M18: 15,477,396 km (0.064 R)
• M19: 16,266,824 km (0.11 R)
• M20: 16,917,425 km (0.1 R)
• M21: 17,249,083 km (0.115 R)
• M22: 19,331,486 km (0.118 R)
• M23: 22,360,992 km (0.036 R)
• M24: 22,760,568 km (0.036 R)
• M25: 27,248,953 km (0.091 R)
• M26: 30,425,963 km (0.097 R)
• M27: 31,164,079 km (0.067 R)
• M28: 34,104,126 km (0.106 R)
• M29: 39,069,130 km (0.113 R)
• M30: 44,652,571 km (0.101 R)
• M31: 45,605,360 km (0.047 R)
• M32: 50,061,282 km (0.113 R)
• M33: 53,721,194 km (0.103 R)
• M34: 55,342,835 km (0.104 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 298 - 11,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit