🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.4

Radius: 12.8

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.8 AU - 0.8 AU

Year: 462 Days

Day: 5.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,175,290 km

• M1: 159,172 km (0.071 R)
• M2: 618,138 km (0.047 R)
• M3: 1,210,097 km (0.093 R)
• M4: 1,684,622 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.3

Radius: 8.3

Gravity: 11.7 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.11 AU - 1.21 AU

Year: 807 Days

Day: 7.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,175,290 km

• M1: 103,372 km (0.056 R)
• M2: 400,922 km (0.119 R)
• M3: 692,339 km (0.075 R)
• M4: 1,130,362 km (0.118 R)
• M5: 1,424,920 km (0.119 R)
• M6: 1,945,520 km (0.053 R)
• M7: 2,951,865 km (0.091 R)
• M8: 3,694,170 km (0.086 R)
• M9: 4,270,720 km (0.118 R)
• M10: 4,538,051 km (0.093 R)
• M11: 4,978,318 km (0.076 R)
• M12: 5,563,545 km (0.094 R)
• M13: 7,238,891 km (0.081 R)
• M14: 7,596,131 km (0.116 R)
• M15: 8,449,288 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.4

Radius: 11.3

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.05 AU - 1.59 AU

Year: 979 Days

Day: 9 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,175,290 km

• M1: 142,866 km (0.08 R)
• M2: 546,631 km (0.087 R)
• M3: 911,201 km (0.104 R)
• M4: 1,276,967 km (0.077 R)
• M5: 1,937,741 km (0.053 R)
• M6: 2,332,380 km (0.087 R)
• M7: 2,691,116 km (0.116 R)
• M8: 3,376,873 km (0.046 R)
• M9: 3,796,794 km (0.098 R)
• M10: 4,468,638 km (0.052 R)
• M11: 5,130,758 km (0.098 R)
• M12: 5,688,160 km (0.075 R)
• M13: 6,127,379 km (0.084 R)
• M14: 7,182,942 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.1

Radius: 14.5

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.26 AU - 1.7 AU

Year: 1163 Days

Day: 6.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,175,290 km

• M1: 182,210 km (0.076 R)
• M2: 699,220 km (0.031 R)
• M3: 1,330,972 km (0.097 R)
• M4: 2,053,979 km (0.111 R)
• M5: 3,343,512 km (0.081 R)
• M6: 4,174,828 km (0.116 R)
• M7: 4,677,177 km (0.101 R)
• M8: 5,220,218 km (0.106 R)
• M9: 6,249,601 km (0.075 R)
• M10: 7,132,527 km (0.106 R)
• M11: 8,151,588 km (0.103 R)
• M12: 11,621,062 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281

Radius: 10.4

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.58 AU - 1.94 AU

Year: 1508 Days

Day: 7.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,175,290 km

• M1: 131,796 km (0.076 R)
• M2: 586,274 km (0.09 R)
• M3: 1,344,586 km (0.12 R)
• M4: 2,042,460 km (0.039 R)
• M5: 3,044,915 km (0.092 R)
• M6: 3,708,980 km (0.088 R)
• M7: 4,214,322 km (0.084 R)
• M8: 4,623,173 km (0.093 R)
• M9: 5,077,053 km (0.111 R)
• M10: 5,906,573 km (0.044 R)
• M11: 6,397,852 km (0.087 R)
• M12: 7,783,727 km (0.104 R)
• M13: 8,749,231 km (0.087 R)
• M14: 9,618,096 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.7

Radius: 15

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.74 AU - 6.14 AU

Year: 9347 Days

Day: 9 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,175,290 km

• M1: 187,596 km (0.116 R)
• M2: 813,962 km (0.067 R)
• M3: 1,417,290 km (0.052 R)
• M4: 1,913,506 km (0.057 R)
• M5: 2,766,962 km (0.09 R)
• M6: 3,538,588 km (0.028 R)
• M7: 4,989,089 km (0.117 R)
• M8: 5,457,181 km (0.116 R)
• M9: 6,137,402 km (0.112 R)
• M10: 7,315,635 km (0.077 R)
• M11: 8,069,908 km (0.114 R)
• M12: 8,875,642 km (0.099 R)
• M13: 9,483,458 km (0.089 R)
• M14: 10,032,781 km (0.072 R)
• M15: 12,445,795 km (0.076 R)
• M16: 14,328,783 km (0.117 R)
• M17: 16,156,420 km (0.118 R)
• M18: 16,636,630 km (0.107 R)
• M19: 19,789,854 km (0.115 R)
• M20: 21,979,069 km (0.083 R)
• M21: 22,495,032 km (0.114 R)
• M22: 25,762,549 km (0.051 R)
• M23: 28,542,675 km (0.075 R)
• M24: 29,601,379 km (0.027 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.9

Radius: 3.4

Gravity: 67.72 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.48 AU - 7.54 AU

Year: 13288 Days

Day: 15.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 68,175,290 km

• M1: 43,683 km (0.097 R)
• M2: 285,582 km (0.086 R)
• M3: 579,243 km (0.09 R)
• M4: 686,804 km (0.07 R)
• M5: 976,724 km (0.092 R)
• M6: 1,273,826 km (0.082 R)
• M7: 1,709,604 km (0.113 R)
• M8: 1,845,589 km (0.037 R)
• M9: 3,234,456 km (0.116 R)
• M10: 3,829,855 km (0.119 R)
• M11: 5,895,951 km (0.114 R)
• M12: 6,488,658 km (0.081 R)
• M13: 6,611,927 km (0.065 R)
• M14: 8,455,720 km (0.112 R)
• M15: 10,502,818 km (0.051 R)
• M16: 11,252,453 km (0.116 R)
• M17: 11,370,785 km (0.095 R)
• M18: 12,728,834 km (0.111 R)
• M19: 13,849,621 km (0.08 R)
• M20: 13,985,606 km (0.099 R)
• M21: 15,178,200 km (0.113 R)
• M22: 16,209,827 km (0.115 R)
• M23: 18,329,778 km (0.109 R)
• M24: 18,576,166 km (0.089 R)
• M25: 21,799,103 km (0.044 R)
• M26: 22,168,310 km (0.049 R)
• M27: 25,784,091 km (0.098 R)
• M28: 26,300,951 km (0.106 R)
• M29: 29,100,675 km (0.074 R)
• M30: 29,323,875 km (0.05 R)
• M31: 30,687,310 km (0.071 R)
• M32: 34,904,474 km (0.059 R)
• M33: 37,611,597 km (0.075 R)
• M34: 39,355,609 km (0.056 R)
• M35: 40,872,681 km (0.109 R)
• M36: 43,148,514 km (0.111 R)
• M37: 45,058,579 km (0.062 R)
• M38: 48,888,883 km (0.082 R)
• M39: 49,204,385 km (0.115 R)
• M40: 49,839,428 km (0.082 R)
• M41: 56,147,073 km (0.067 R)
• M42: 56,319,858 km (0.062 R)
• M43: 57,715,008 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.5

Radius: 6

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 10.01 AU - 10.89 AU

Year: 21812 Days

Day: 21.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,175,290 km

• M1: 74,649 km (0.106 R)
• M2: 455,675 km (0.095 R)
• M3: 644,767 km (0.088 R)
• M4: 909,705 km (0.079 R)
• M5: 1,205,011 km (0.097 R)
• M6: 2,127,132 km (0.112 R)
• M7: 2,400,896 km (0.07 R)
• M8: 3,338,576 km (0.116 R)
• M9: 3,738,900 km (0.098 R)
• M10: 4,465,646 km (0.085 R)
• M11: 5,282,600 km (0.11 R)
• M12: 6,029,243 km (0.082 R)
• M13: 6,799,522 km (0.076 R)
• M14: 10,364,290 km (0.108 R)
• M15: 10,967,020 km (0.086 R)
• M16: 12,375,035 km (0.088 R)
• M17: 12,984,198 km (0.08 R)
• M18: 13,542,347 km (0.087 R)
• M19: 14,262,511 km (0.096 R)
• M20: 15,159,799 km (0.068 R)
• M21: 15,700,446 km (0.113 R)
• M22: 20,310,454 km (0.069 R)
• M23: 23,123,492 km (0.082 R)
• M24: 30,838,554 km (0.034 R)
• M25: 32,972,418 km (0.031 R)
• M26: 37,252,563 km (0.105 R)
• M27: 38,235,869 km (0.083 R)
• M28: 42,951,793 km (0.053 R)
• M29: 52,460,832 km (0.05 R)
• M30: 59,206,648 km (0.084 R)
• M31: 62,687,941 km (0.099 R)
• M32: 64,077,854 km (0.113 R)
• M33: 67,538,651 km (0.046 R)
• M34: 69,209,510 km (0.054 R)
• M35: 72,199,523 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.7

Radius: 4.1

Gravity: 23.48 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 9.78 AU - 11.46 AU

Year: 22346 Days

Day: 19.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,175,290 km

• M1: 51,013 km (0.09 R)
• M2: 193,879 km (0.079 R)
• M3: 335,249 km (0.069 R)
• M4: 664,065 km (0.12 R)
• M5: 1,391,859 km (0.109 R)
• M6: 1,799,962 km (0.109 R)
• M7: 2,728,516 km (0.057 R)
• M8: 2,897,412 km (0.045 R)
• M9: 3,586,310 km (0.086 R)
• M10: 5,619,943 km (0.063 R)
• M11: 7,033,942 km (0.104 R)
• M12: 8,363,718 km (0.09 R)
• M13: 11,323,512 km (0.101 R)
• M14: 13,342,784 km (0.03 R)
• M15: 13,619,689 km (0.027 R)
• M16: 13,759,713 km (0.119 R)
• M17: 22,236,377 km (0.065 R)
• M18: 23,217,889 km (0.098 R)
• M19: 25,266,931 km (0.097 R)
• M20: 30,311,521 km (0.118 R)
• M21: 30,910,211 km (0.109 R)
• M22: 34,410,053 km (0.12 R)
• M23: 41,740,349 km (0.092 R)
• M24: 41,887,853 km (0.112 R)
• M25: 42,630,456 km (0.066 R)
• M26: 47,914,852 km (0.063 R)
• M27: 52,409,669 km (0.105 R)
• M28: 59,759,712 km (0.091 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 10,514 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit