🌌 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 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.2

Radius: 12.9

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.46 AU - 0.56 AU

Year: 251 Days

Day: 8.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,751,060 km

• M1: 160,369 km (0.078 R)
• M2: 687,253 km (0.118 R)
• M3: 1,227,451 km (0.115 R)
• M4: 1,720,974 km (0.099 R)
• M5: 2,511,449 km (0.11 R)
• M6: 2,920,300 km (0.115 R)
• M7: 3,920,511 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.3

Radius: 13.2

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.64 AU - 0.66 AU

Year: 362 Days

Day: 5.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,751,060 km

• M1: 164,109 km (0.047 R)
• M2: 989,590 km (0.103 R)
• M3: 1,550,432 km (0.102 R)
• M4: 2,489,608 km (0.047 R)
• M5: 3,010,807 km (0.102 R)
• M6: 3,879,372 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.3

Radius: 11.4

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.04 AU - 1.5 AU

Year: 988 Days

Day: 9.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,751,060 km

• M1: 141,819 km (0.05 R)
• M2: 503,696 km (0.085 R)
• M3: 906,264 km (0.085 R)
• M4: 1,363,136 km (0.1 R)
• M5: 1,869,225 km (0.11 R)
• M6: 3,418,910 km (0.095 R)
• M7: 4,165,403 km (0.113 R)
• M8: 4,980,712 km (0.096 R)
• M9: 6,215,044 km (0.061 R)
• M10: 6,881,203 km (0.104 R)
• M11: 7,471,965 km (0.041 R)
• M12: 8,487,585 km (0.056 R)
• M13: 9,506,645 km (0.111 R)
• M14: 9,942,424 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.5

Radius: 8.5

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.11 AU - 1.47 AU

Year: 1011 Days

Day: 13.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,751,060 km

• M1: 105,766 km (0.113 R)
• M2: 880,832 km (0.104 R)
• M3: 1,271,582 km (0.073 R)
• M4: 1,740,870 km (0.071 R)
• M5: 2,889,483 km (0.118 R)
• M6: 3,971,375 km (0.088 R)
• M7: 4,348,361 km (0.105 R)
• M8: 5,029,630 km (0.056 R)
• M9: 6,348,485 km (0.07 R)
• M10: 6,975,898 km (0.102 R)
• M11: 8,129,298 km (0.112 R)
• M12: 8,557,597 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.8

Radius: 10.2

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.77 AU - 1.91 AU

Year: 1723 Days

Day: 6.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,751,060 km

• M1: 126,859 km (0.099 R)
• M2: 586,872 km (0.095 R)
• M3: 1,063,042 km (0.113 R)
• M4: 1,387,371 km (0.073 R)
• M5: 1,708,707 km (0.096 R)
• M6: 2,429,619 km (0.092 R)
• M7: 3,049,702 km (0.114 R)
• M8: 3,686,540 km (0.049 R)
• M9: 4,604,772 km (0.091 R)
• M10: 6,836,922 km (0.109 R)
• M11: 7,341,216 km (0.045 R)
• M12: 7,756,799 km (0.079 R)
• M13: 8,365,064 km (0.049 R)
• M14: 8,849,462 km (0.103 R)
• M15: 9,320,695 km (0.111 R)
• M16: 9,974,737 km (0.088 R)
• M17: 10,941,588 km (0.114 R)
• M18: 11,301,670 km (0.039 R)
• M19: 13,755,375 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.7

Radius: 13.8

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.71 AU - 2.55 AU

Year: 2146 Days

Day: 12.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,751,060 km

• M1: 171,888 km (0.114 R)
• M2: 626,665 km (0.059 R)
• M3: 1,067,530 km (0.1 R)
• M4: 1,579,903 km (0.057 R)
• M5: 2,257,881 km (0.053 R)
• M6: 2,896,215 km (0.088 R)
• M7: 3,381,510 km (0.032 R)
• M8: 4,222,101 km (0.089 R)
• M9: 5,242,657 km (0.066 R)
• M10: 5,727,953 km (0.1 R)
• M11: 6,268,450 km (0.108 R)
• M12: 7,538,237 km (0.065 R)
• M13: 8,844,376 km (0.103 R)
• M14: 9,670,455 km (0.054 R)
• M15: 10,475,142 km (0.111 R)
• M16: 10,986,617 km (0.118 R)
• M17: 15,794,543 km (0.103 R)
• M18: 16,273,705 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.6

Radius: 10.2

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.12 AU - 2.98 AU

Year: 2811 Days

Day: 6.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,751,060 km

• M1: 128,804 km (0.028 R)
• M2: 720,763 km (0.049 R)
• M3: 1,190,201 km (0.119 R)
• M4: 1,507,348 km (0.097 R)
• M5: 1,846,487 km (0.106 R)
• M6: 2,223,772 km (0.099 R)
• M7: 2,622,151 km (0.104 R)
• M8: 4,717,718 km (0.1 R)
• M9: 5,838,655 km (0.039 R)
• M10: 6,891,525 km (0.101 R)
• M11: 7,587,754 km (0.112 R)
• M12: 8,565,376 km (0.111 R)
• M13: 9,262,502 km (0.08 R)
• M14: 10,417,098 km (0.054 R)
• M15: 11,170,623 km (0.119 R)
• M16: 12,965,199 km (0.066 R)
• M17: 13,884,178 km (0.061 R)
• M18: 15,697,753 km (0.082 R)
• M19: 17,389,256 km (0.088 R)
• M20: 18,392,310 km (0.054 R)
• M21: 19,082,256 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.9

Radius: 9.3

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.65 AU - 3.63 AU

Year: 3841 Days

Day: 8.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,751,060 km

• M1: 115,639 km (0.116 R)
• M2: 577,298 km (0.032 R)
• M3: 1,212,940 km (0.103 R)
• M4: 2,011,643 km (0.09 R)
• M5: 2,365,442 km (0.11 R)
• M6: 3,181,348 km (0.116 R)
• M7: 4,681,516 km (0.062 R)
• M8: 5,709,852 km (0.065 R)
• M9: 6,017,574 km (0.08 R)
• M10: 6,544,907 km (0.115 R)
• M11: 7,134,622 km (0.095 R)
• M12: 7,692,023 km (0.076 R)
• M13: 10,338,709 km (0.027 R)
• M14: 10,670,667 km (0.102 R)
• M15: 15,071,237 km (0.109 R)
• M16: 15,824,313 km (0.09 R)
• M17: 16,154,625 km (0.107 R)
• M18: 16,715,318 km (0.09 R)
• M19: 19,400,749 km (0.116 R)
• M20: 20,878,627 km (0.069 R)
• M21: 22,018,263 km (0.103 R)
• M22: 22,847,335 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 463.9

Radius: 3.1

Gravity: 48.27 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 9.62 AU - 10.64 AU

Year: 22255 Days

Day: 20.2 Hours

Environment

Temp: -244 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 71,751,060 km

• M1: 38,596 km (0.059 R)
• M2: 196,123 km (0.108 R)
• M3: 300,393 km (0.066 R)
• M4: 595,250 km (0.075 R)
• M5: 712,235 km (0.061 R)
• M6: 899,682 km (0.102 R)
• M7: 1,119,142 km (0.069 R)
• M8: 1,241,662 km (0.083 R)
• M9: 1,418,936 km (0.068 R)
• M10: 1,824,047 km (0.105 R)
• M11: 2,133,864 km (0.082 R)
• M12: 2,366,489 km (0.058 R)
• M13: 3,193,017 km (0.056 R)
• M14: 3,301,475 km (0.079 R)
• M15: 6,357,910 km (0.05 R)
• M16: 13,671,749 km (0.118 R)
• M17: 13,958,229 km (0.113 R)
• M18: 15,374,024 km (0.115 R)
• M19: 15,528,409 km (0.118 R)
• M20: 18,487,305 km (0.037 R)
• M21: 19,551,395 km (0.076 R)
• M22: 20,843,621 km (0.096 R)
• M23: 22,290,083 km (0.082 R)
• M24: 23,802,218 km (0.117 R)
• M25: 26,031,974 km (0.103 R)
• M26: 28,746,128 km (0.062 R)
• M27: 29,810,816 km (0.083 R)
• M28: 37,867,859 km (0.035 R)
• M29: 39,002,708 km (0.059 R)
• M30: 39,146,172 km (0.103 R)
• M31: 41,788,370 km (0.047 R)
• M32: 45,018,188 km (0.108 R)
• M33: 46,130,747 km (0.106 R)
• M34: 46,774,617 km (0.1 R)
• M35: 47,587,831 km (0.074 R)
• M36: 50,423,458 km (0.069 R)
• M37: 62,892,291 km (0.106 R)
• M38: 66,301,627 km (0.11 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: 425 - 11,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit