🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.58 AU - 0.58 AU

Year: 290 Days

Day: 39.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.54 AU - 0.72 AU

Year: 328 Days

Day: 36.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,725,270 km

• M1: 121,773 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.5

Radius: 14.8

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.74 AU - 1 AU

Year: 532 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,725,270 km

• M1: 184,005 km (0.079 R)
• M2: 650,302 km (0.116 R)
• M3: 1,150,856 km (0.028 R)
• M4: 1,808,489 km (0.034 R)
• M5: 2,348,986 km (0.087 R)
• M6: 3,078,275 km (0.09 R)
• M7: 3,567,909 km (0.06 R)
• M8: 4,327,118 km (0.107 R)
• M9: 5,026,638 km (0.072 R)
• M10: 5,604,385 km (0.045 R)
• M11: 6,226,413 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.8

Radius: 11.6

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.39 AU - 1.89 AU

Year: 1378 Days

Day: 8.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,725,270 km

• M1: 144,362 km (0.114 R)
• M2: 556,055 km (0.087 R)
• M3: 988,992 km (0.107 R)
• M4: 1,526,048 km (0.117 R)
• M5: 2,054,428 km (0.12 R)
• M6: 2,476,294 km (0.097 R)
• M7: 2,995,548 km (0.098 R)
• M8: 4,356,140 km (0.104 R)
• M9: 4,817,201 km (0.1 R)
• M10: 5,193,888 km (0.047 R)
• M11: 5,712,993 km (0.115 R)
• M12: 6,092,672 km (0.054 R)
• M13: 6,466,518 km (0.116 R)
• M14: 7,285,117 km (0.113 R)
• M15: 7,656,569 km (0.114 R)
• M16: 9,946,463 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.2

Radius: 10

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.16 AU - 3.34 AU

Year: 3844 Days

Day: 12.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,725,270 km

• M1: 130,300 km (0.107 R)
• M2: 498,909 km (0.041 R)
• M3: 1,213,688 km (0.12 R)
• M4: 1,537,567 km (0.105 R)
• M5: 2,913,867 km (0.072 R)
• M6: 4,176,473 km (0.111 R)
• M7: 5,125,971 km (0.117 R)
• M8: 6,073,075 km (0.042 R)
• M9: 7,674,072 km (0.066 R)
• M10: 8,660,520 km (0.09 R)
• M11: 10,236,234 km (0.092 R)
• M12: 11,819,279 km (0.066 R)
• M13: 12,623,517 km (0.081 R)
• M14: 14,692,007 km (0.076 R)
• M15: 15,993,508 km (0.11 R)
• M16: 21,709,643 km (0.113 R)
• M17: 22,173,097 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.9

Radius: 12.5

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.72 AU - 4.42 AU

Year: 5386 Days

Day: 12.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 85,725,270 km

• M1: 173,085 km (0.066 R)
• M2: 588,668 km (0.11 R)
• M3: 1,095,356 km (0.116 R)
• M4: 1,761,365 km (0.094 R)
• M5: 2,211,206 km (0.029 R)
• M6: 2,919,253 km (0.061 R)
• M7: 3,751,765 km (0.089 R)
• M8: 4,762,448 km (0.104 R)
• M9: 5,503,107 km (0.113 R)
• M10: 5,946,815 km (0.107 R)
• M11: 6,641,098 km (0.052 R)
• M12: 7,179,351 km (0.053 R)
• M13: 7,602,115 km (0.1 R)
• M14: 8,116,432 km (0.098 R)
• M15: 8,653,788 km (0.066 R)
• M16: 12,045,770 km (0.116 R)
• M17: 12,442,653 km (0.094 R)
• M18: 13,002,598 km (0.102 R)
• M19: 14,009,541 km (0.082 R)
• M20: 15,296,981 km (0.102 R)
• M21: 17,405,563 km (0.068 R)
• M22: 19,701,292 km (0.053 R)
• M23: 21,100,181 km (0.047 R)
• M24: 22,192,096 km (0.052 R)
• M25: 23,244,966 km (0.049 R)
• M26: 28,223,882 km (0.089 R)
• M27: 28,925,496 km (0.11 R)
• M28: 29,909,252 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.4

Radius: 12.3

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.47 AU - 5.59 AU

Year: 6325 Days

Day: 14 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,725,270 km

• M1: 154,684 km (0.114 R)
• M2: 751,729 km (0.065 R)
• M3: 1,492,089 km (0.089 R)
• M4: 2,263,117 km (0.075 R)
• M5: 3,564,169 km (0.086 R)
• M6: 4,434,081 km (0.114 R)
• M7: 5,287,986 km (0.055 R)
• M8: 6,164,180 km (0.099 R)
• M9: 8,796,205 km (0.074 R)
• M10: 9,490,788 km (0.049 R)
• M11: 10,025,750 km (0.076 R)
• M12: 10,621,150 km (0.069 R)
• M13: 12,777,753 km (0.083 R)
• M14: 13,959,127 km (0.102 R)
• M15: 15,315,381 km (0.098 R)
• M16: 17,201,810 km (0.071 R)
• M17: 20,725,289 km (0.032 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.9

Radius: 14.6

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.93 AU - 5.95 AU

Year: 8324 Days

Day: 11.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,725,270 km

• M1: 181,612 km (0.089 R)
• M2: 740,061 km (0.12 R)
• M3: 1,391,410 km (0.053 R)
• M4: 1,909,617 km (0.081 R)
• M5: 2,723,280 km (0.09 R)
• M6: 3,573,594 km (0.104 R)
• M7: 4,124,712 km (0.064 R)
• M8: 4,815,855 km (0.119 R)
• M9: 6,465,919 km (0.075 R)
• M10: 9,145,666 km (0.086 R)
• M11: 9,678,085 km (0.064 R)
• M12: 10,563,405 km (0.092 R)
• M13: 11,300,025 km (0.101 R)
• M14: 13,889,863 km (0.118 R)
• M15: 17,655,690 km (0.096 R)
• M16: 19,264,466 km (0.1 R)
• M17: 19,919,854 km (0.096 R)
• M18: 22,292,177 km (0.086 R)
• M19: 22,853,020 km (0.076 R)
• M20: 28,332,191 km (0.066 R)
• M21: 28,895,726 km (0.105 R)
• M22: 32,743,683 km (0.061 R)
• M23: 36,146,286 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.9

Radius: 4

Gravity: 44.43 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 9.21 AU - 12.51 AU

Year: 23478 Days

Day: 18.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 85,725,270 km

• M1: 61,036 km (0.062 R)
• M2: 270,024 km (0.103 R)
• M3: 501,153 km (0.074 R)
• M4: 704,756 km (0.115 R)
• M5: 1,662,182 km (0.108 R)
• M6: 2,963,833 km (0.101 R)
• M7: 3,660,510 km (0.094 R)
• M8: 4,460,261 km (0.098 R)
• M9: 4,900,976 km (0.07 R)
• M10: 5,533,027 km (0.106 R)
• M11: 5,825,939 km (0.089 R)
• M12: 6,580,362 km (0.032 R)
• M13: 8,120,023 km (0.106 R)
• M14: 8,831,809 km (0.101 R)
• M15: 9,406,864 km (0.09 R)
• M16: 11,281,475 km (0.103 R)
• M17: 16,507,975 km (0.085 R)
• M18: 16,766,032 km (0.116 R)
• M19: 17,467,347 km (0.102 R)
• M20: 18,928,319 km (0.062 R)
• M21: 20,076,034 km (0.084 R)
• M22: 22,932,755 km (0.119 R)
• M23: 30,070,668 km (0.086 R)
• M24: 39,776,129 km (0.107 R)
• M25: 42,612,804 km (0.059 R)
• M26: 43,260,862 km (0.034 R)
• M27: 46,771,924 km (0.076 R)
• M28: 48,684,682 km (0.12 R)
• M29: 56,079,155 km (0.112 R)
• M30: 56,662,138 km (0.061 R)
• M31: 65,039,021 km (0.092 R)
• M32: 65,467,469 km (0.101 R)
• M33: 75,377,131 km (0.099 R)
• M34: 83,432,827 km (0.074 R)
• M35: 83,938,617 km (0.093 R)
• M36: 84,701,267 km (0.107 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: 222 - 16,088 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit