🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.48 AU - 0.7 AU

Year: 297 Days

Day: 28.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.1

Radius: 11.5

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.69 AU - 0.85 AU

Year: 443 Days

Day: 6.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,121,469 km

• M1: 143,016 km (0.118 R)
• M2: 458,966 km (0.073 R)
• M3: 798,853 km (0.089 R)
• M4: 1,211,743 km (0.113 R)
• M5: 1,660,686 km (0.088 R)
• M6: 1,880,296 km (0.103 R)
• M7: 2,126,983 km (0.12 R)
• M8: 2,370,677 km (0.06 R)
• M9: 2,773,096 km (0.084 R)
• M10: 3,045,214 km (0.073 R)
• M11: 3,392,581 km (0.077 R)
• M12: 3,825,517 km (0.031 R)
• M13: 4,241,548 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.3

Radius: 9.2

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.71 AU - 0.99 AU

Year: 514 Days

Day: 9.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,121,469 km

• M1: 121,324 km (0.066 R)
• M2: 320,588 km (0.051 R)
• M3: 550,371 km (0.114 R)
• M4: 735,423 km (0.039 R)
• M5: 1,150,108 km (0.095 R)
• M6: 1,469,051 km (0.082 R)
• M7: 2,063,553 km (0.11 R)
• M8: 2,311,437 km (0.119 R)
• M9: 2,615,270 km (0.051 R)
• M10: 2,825,754 km (0.037 R)
• M11: 3,873,687 km (0.094 R)
• M12: 4,615,394 km (0.071 R)
• M13: 4,942,265 km (0.098 R)
• M14: 5,186,109 km (0.116 R)
• M15: 5,642,532 km (0.086 R)
• M16: 5,991,544 km (0.113 R)
• M17: 6,170,015 km (0.107 R)
• M18: 6,614,470 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.7

Radius: 12.9

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.86 AU - 1.32 AU

Year: 747 Days

Day: 6.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,121,469 km

• M1: 161,416 km (0.11 R)
• M2: 531,671 km (0.04 R)
• M3: 920,775 km (0.107 R)
• M4: 1,191,697 km (0.095 R)
• M5: 1,454,091 km (0.114 R)
• M6: 1,780,364 km (0.108 R)
• M7: 2,259,526 km (0.086 R)
• M8: 3,511,660 km (0.102 R)
• M9: 3,774,354 km (0.047 R)
• M10: 4,165,403 km (0.081 R)
• M11: 4,748,835 km (0.039 R)
• M12: 5,007,639 km (0.078 R)
• M13: 5,298,009 km (0.119 R)
• M14: 6,354,020 km (0.113 R)
• M15: 7,435,313 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.5

Radius: 11.8

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.34 AU - 1.62 AU

Year: 1181 Days

Day: 12.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,121,469 km

• M1: 148,850 km (0.117 R)
• M2: 370,404 km (0.12 R)
• M3: 598,391 km (0.112 R)
• M4: 838,945 km (0.105 R)
• M5: 1,523,505 km (0.116 R)
• M6: 1,840,203 km (0.059 R)
• M7: 2,089,284 km (0.08 R)
• M8: 2,440,988 km (0.109 R)
• M9: 2,856,721 km (0.106 R)
• M10: 3,319,876 km (0.116 R)
• M11: 3,578,231 km (0.072 R)
• M12: 4,040,788 km (0.104 R)
• M13: 5,889,668 km (0.078 R)
• M14: 6,976,198 km (0.071 R)
• M15: 7,201,043 km (0.114 R)
• M16: 8,564,328 km (0.095 R)
• M17: 8,813,708 km (0.067 R)
• M18: 9,173,341 km (0.057 R)
• M19: 10,273,185 km (0.086 R)
• M20: 10,823,556 km (0.093 R)
• M21: 11,579,922 km (0.117 R)
• M22: 11,870,292 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.1

Radius: 13

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.85 AU - 1.93 AU

Year: 1705 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,121,469 km

• M1: 168,447 km (0.11 R)
• M2: 714,779 km (0.105 R)
• M3: 1,041,052 km (0.06 R)
• M4: 1,434,494 km (0.07 R)
• M5: 1,779,467 km (0.115 R)
• M6: 2,310,689 km (0.117 R)
• M7: 3,774,205 km (0.11 R)
• M8: 4,400,272 km (0.082 R)
• M9: 4,902,472 km (0.115 R)
• M10: 6,060,958 km (0.054 R)
• M11: 6,577,968 km (0.117 R)
• M12: 7,559,330 km (0.092 R)
• M13: 7,855,534 km (0.111 R)
• M14: 8,157,422 km (0.118 R)
• M15: 8,423,707 km (0.103 R)
• M16: 8,905,561 km (0.096 R)
• M17: 9,357,496 km (0.079 R)
• M18: 10,387,179 km (0.077 R)
• M19: 11,064,408 km (0.093 R)
• M20: 11,471,464 km (0.103 R)
• M21: 11,836,932 km (0.099 R)
• M22: 12,283,032 km (0.116 R)
• M23: 12,788,673 km (0.058 R)
• M24: 13,045,234 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.5

Radius: 11.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.61 AU - 2.53 AU

Year: 1954 Days

Day: 13.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,121,469 km

• M1: 144,362 km (0.058 R)
• M2: 515,664 km (0.099 R)
• M3: 834,457 km (0.084 R)
• M4: 1,208,601 km (0.073 R)
• M5: 1,437,486 km (0.118 R)
• M6: 2,121,747 km (0.119 R)
• M7: 2,358,261 km (0.081 R)
• M8: 2,705,178 km (0.119 R)
• M9: 3,054,190 km (0.116 R)
• M10: 3,339,623 km (0.088 R)
• M11: 3,651,235 km (0.109 R)
• M12: 4,458,017 km (0.107 R)
• M13: 4,804,186 km (0.08 R)
• M14: 5,332,865 km (0.118 R)
• M15: 6,004,859 km (0.091 R)
• M16: 6,544,308 km (0.102 R)
• M17: 8,207,986 km (0.113 R)
• M18: 9,513,826 km (0.074 R)
• M19: 9,935,393 km (0.116 R)
• M20: 10,806,352 km (0.064 R)
• M21: 11,029,851 km (0.059 R)
• M22: 11,415,066 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.3

Radius: 11.4

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.41 AU - 2.65 AU

Year: 2640 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,121,469 km

• M1: 142,118 km (0.118 R)
• M2: 368,310 km (0.068 R)
• M3: 632,201 km (0.095 R)
• M4: 1,082,191 km (0.091 R)
• M5: 1,312,422 km (0.061 R)
• M6: 1,525,300 km (0.109 R)
• M7: 1,825,094 km (0.097 R)
• M8: 2,376,811 km (0.073 R)
• M9: 2,681,841 km (0.094 R)
• M10: 3,067,504 km (0.102 R)
• M11: 4,151,042 km (0.093 R)
• M12: 4,941,666 km (0.108 R)
• M13: 5,363,682 km (0.114 R)
• M14: 6,462,478 km (0.108 R)
• M15: 8,657,378 km (0.045 R)
• M16: 9,243,652 km (0.105 R)
• M17: 11,418,805 km (0.104 R)
• M18: 12,562,032 km (0.07 R)
• M19: 13,793,522 km (0.098 R)
• M20: 15,643,898 km (0.096 R)
• M21: 16,286,720 km (0.069 R)
• M22: 17,988,994 km (0.116 R)
• M23: 18,370,319 km (0.037 R)
• M24: 20,096,080 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601

Radius: 6.8

Gravity: 13 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 9.31 AU - 10.79 AU

Year: 20901 Days

Day: 22 Hours

Environment

Temp: -240 °C

Axial Tilt: 58.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 33,121,469 km

• M1: 279,449 km (0.025 R)
• M2: 430,991 km (0.069 R)
• M3: 588,368 km (0.1 R)
• M4: 1,145,620 km (0.087 R)
• M5: 1,409,960 km (0.077 R)
• M6: 1,616,704 km (0.073 R)
• M7: 1,907,971 km (0.116 R)
• M8: 2,379,205 km (0.117 R)
• M9: 3,233,408 km (0.079 R)
• M10: 4,222,400 km (0.083 R)
• M11: 5,149,757 km (0.052 R)
• M12: 5,426,064 km (0.113 R)
• M13: 5,709,852 km (0.097 R)
• M14: 6,213,398 km (0.101 R)
• M15: 8,343,372 km (0.117 R)
• M16: 9,106,621 km (0.108 R)
• M17: 10,231,597 km (0.095 R)
• M18: 11,539,681 km (0.085 R)
• M19: 13,113,749 km (0.106 R)
• M20: 15,733,208 km (0.088 R)
• M21: 17,061,488 km (0.04 R)
• M22: 19,726,424 km (0.033 R)
• M23: 19,880,211 km (0.115 R)
• M24: 20,111,938 km (0.045 R)
• M25: 20,815,347 km (0.106 R)
• M26: 21,370,804 km (0.111 R)
• M27: 23,918,904 km (0.116 R)
• M28: 27,510,001 km (0.117 R)
• M29: 31,450,110 km (0.072 R)
• M30: 32,723,188 km (0.113 R)
• M31: 35,448,263 km (0.068 R)
• M32: 37,962,255 km (0.087 R)
• M33: 39,795,128 km (0.11 R)
• M34: 40,232,702 km (0.074 R)
• M35: 41,004,328 km (0.094 R)
• M36: 45,904,855 km (0.068 R)
• M37: 51,578,055 km (0.056 R)
• M38: 54,347,410 km (0.113 R)
• M39: 54,730,680 km (0.079 R)
• M40: 59,701,967 km (0.061 R)
• M41: 64,194,840 km (0.112 R)
• M42: 68,420,681 km (0.057 R)
• M43: 69,859,363 km (0.108 R)
• M44: 73,225,016 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.4

Radius: 4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 9.36 AU - 12.84 AU

Year: 24260 Days

Day: 23.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,121,469 km

• M1: 100,081 km (0.108 R)
• M2: 193,879 km (0.105 R)
• M3: 583,132 km (0.111 R)
• M4: 1,109,418 km (0.095 R)
• M5: 1,845,140 km (0.084 R)
• M6: 2,587,295 km (0.104 R)
• M7: 4,170,789 km (0.081 R)
• M8: 6,079,657 km (0.081 R)
• M9: 7,574,589 km (0.102 R)
• M10: 10,017,522 km (0.075 R)
• M11: 17,721,962 km (0.089 R)
• M12: 26,541,056 km (0.056 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 15,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit