G2V Star System Generated (Seed: 1766367575)
Star Details
Spectral Class: G9V
Temperature: 5,200 K
Mass: 0.9 sol
Luminosity: 0.69 lux
Habitable Zone (HZ)
Inner Boundary: 0.79 AU
Outer Boundary: 1.14 AU
Physical Limits
Snow Line: 3.99 AU
Max System Radius: 19 AU
Planetary System (8 Planets)
Planet 1 - Terrestrial
Semi-Major Axis: 1.35 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 2.62
Radius: 1.47
Gravity: 1.21 G
Time & Orbit
Eccentricity (e): 0.162
Orbit Range: 1.13 AU - 1.57 AU
Year: 604 Days
Day: 31.8 Hours
Environment
Temp: -53 °C
Axial Tilt: 27.3 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Satellites (1)
Outer Limit: 38,651,835 km
- M1: 619,634 km (0.03 R)
Planet 2 - Terrestrial
Semi-Major Axis: 1.47 AU
Status: Outer (Cold)
Composition: Rocky (Silicates/Metals)
Physical Data
Mass: 4.85
Radius: 1.88
Gravity: 1.37 G
Time & Orbit
Eccentricity (e): 0.066
Orbit Range: 1.37 AU - 1.57 AU
Year: 686 Days
Day: 30.8 Hours
Environment
Temp: -47 °C
Axial Tilt: 16.3 °
Atmosphere: Thin Nâ‚‚/CHâ‚„
Biome: Ice Cap/Desert
Planet 3 - Gas Giant
Semi-Major Axis: 4.05 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 523
Radius: 10
Gravity: 5.23 G
Time & Orbit
Eccentricity (e): 0
Orbit Range: 4.05 AU - 4.05 AU
Year: 3138 Days
Day: 7.2 Hours
Environment
Temp: -140 °C
Axial Tilt: 29.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (75)
Outer Limit: 38,651,835 km
- M1: 129,402 km (0.093 R)
- M2: 194,477 km (0.061 R)
- M3: 285,283 km (0.114 R)
- M4: 419,921 km (0.056 R)
- M5: 488,736 km (0.094 R)
- M6: 649,255 km (0.063 R)
- M7: 857,944 km (0.085 R)
- M8: 949,797 km (0.117 R)
- M9: 1,045,091 km (0.094 R)
- M10: 1,327,681 km (0.113 R)
- M11: 1,423,274 km (0.05 R)
- M12: 1,976,936 km (0.052 R)
- M13: 2,156,753 km (0.109 R)
- M14: 2,270,148 km (0.101 R)
- M15: 2,652,669 km (0.06 R)
- M16: 2,851,635 km (0.054 R)
- M17: 2,929,575 km (0.06 R)
- M18: 3,071,394 km (0.078 R)
- M19: 3,395,124 km (0.112 R)
- M20: 3,763,882 km (0.046 R)
- M21: 4,040,339 km (0.052 R)
- M22: 4,251,871 km (0.058 R)
- M23: 4,946,154 km (0.072 R)
- M24: 5,134,797 km (0.077 R)
- M25: 5,306,536 km (0.074 R)
- M26: 5,422,025 km (0.115 R)
- M27: 5,616,652 km (0.056 R)
- M28: 5,734,386 km (0.086 R)
- M29: 6,113,018 km (0.043 R)
- M30: 6,397,254 km (0.048 R)
- M31: 6,479,233 km (0.114 R)
- M32: 7,490,365 km (0.08 R)
- M33: 7,707,282 km (0.079 R)
- M34: 7,794,498 km (0.107 R)
- M35: 7,882,162 km (0.118 R)
- M36: 8,460,059 km (0.066 R)
- M37: 8,982,604 km (0.078 R)
- M38: 9,375,598 km (0.033 R)
- M39: 9,538,959 km (0.044 R)
- M40: 9,679,880 km (0.11 R)
- M41: 10,466,914 km (0.112 R)
- M42: 10,807,100 km (0.049 R)
- M43: 11,027,757 km (0.12 R)
- M44: 11,299,277 km (0.046 R)
- M45: 11,548,208 km (0.104 R)
- M46: 11,975,459 km (0.048 R)
- M47: 12,076,737 km (0.088 R)
- M48: 12,152,882 km (0.045 R)
- M49: 12,331,203 km (0.096 R)
- M50: 12,768,029 km (0.082 R)
- M51: 12,975,222 km (0.072 R)
- M52: 13,235,971 km (0.075 R)
- M53: 13,340,689 km (0.095 R)
- M54: 14,108,426 km (0.041 R)
- M55: 14,349,577 km (0.112 R)
- M56: 14,564,998 km (0.072 R)
- M57: 14,944,827 km (0.055 R)
- M58: 15,026,657 km (0.084 R)
- M59: 15,163,390 km (0.107 R)
- M60: 15,245,519 km (0.071 R)
- M61: 15,437,902 km (0.111 R)
- M62: 15,631,182 km (0.052 R)
- M63: 15,769,560 km (0.105 R)
- M64: 15,992,012 km (0.116 R)
- M65: 16,355,685 km (0.102 R)
- M66: 16,977,414 km (0.113 R)
- M67: 17,405,712 km (0.082 R)
- M68: 18,302,252 km (0.089 R)
- M69: 18,741,472 km (0.115 R)
- M70: 19,065,800 km (0.025 R)
- M71: 19,184,132 km (0.117 R)
- M72: 19,332,533 km (0.068 R)
- M73: 19,959,647 km (0.11 R)
- M74: 20,079,774 km (0.12 R)
- M75: 20,170,131 km (0.115 R)
Planet 4 - Gas Giant
Semi-Major Axis: 4.57 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 72.7
Radius: 12.5
Gravity: 0.47 G
Time & Orbit
Eccentricity (e): 0.196
Orbit Range: 3.67 AU - 5.47 AU
Year: 3761 Days
Day: 14.6 Hours
Environment
Temp: -143 °C
Axial Tilt: 46.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (53)
Outer Limit: 38,651,835 km
- M1: 293,810 km (0.093 R)
- M2: 376,239 km (0.067 R)
- M3: 622,477 km (0.095 R)
- M4: 702,512 km (0.093 R)
- M5: 826,678 km (0.034 R)
- M6: 916,437 km (0.119 R)
- M7: 1,214,884 km (0.113 R)
- M8: 1,400,984 km (0.117 R)
- M9: 1,561,951 km (0.12 R)
- M10: 1,774,530 km (0.074 R)
- M11: 2,053,829 km (0.045 R)
- M12: 2,238,283 km (0.08 R)
- M13: 2,317,570 km (0.061 R)
- M14: 2,438,445 km (0.108 R)
- M15: 2,592,531 km (0.096 R)
- M16: 2,856,721 km (0.111 R)
- M17: 2,943,189 km (0.113 R)
- M18: 3,275,296 km (0.08 R)
- M19: 3,526,620 km (0.037 R)
- M20: 3,631,339 km (0.1 R)
- M21: 3,784,377 km (0.094 R)
- M22: 3,951,777 km (0.112 R)
- M23: 4,455,773 km (0.101 R)
- M24: 4,544,035 km (0.093 R)
- M25: 4,632,747 km (0.091 R)
- M26: 4,786,234 km (0.118 R)
- M27: 4,902,472 km (0.099 R)
- M28: 5,019,757 km (0.086 R)
- M29: 5,363,532 km (0.083 R)
- M30: 5,457,480 km (0.052 R)
- M31: 5,783,753 km (0.06 R)
- M32: 5,893,857 km (0.06 R)
- M33: 6,214,595 km (0.043 R)
- M34: 6,526,806 km (0.069 R)
- M35: 6,728,164 km (0.11 R)
- M36: 7,196,106 km (0.107 R)
- M37: 7,359,467 km (0.07 R)
- M38: 7,629,342 km (0.09 R)
- M39: 8,117,330 km (0.082 R)
- M40: 8,271,865 km (0.11 R)
- M41: 8,427,446 km (0.084 R)
- M42: 8,963,755 km (0.112 R)
- M43: 9,204,009 km (0.079 R)
- M44: 9,349,119 km (0.054 R)
- M45: 9,789,086 km (0.119 R)
- M46: 10,069,582 km (0.083 R)
- M47: 10,285,751 km (0.081 R)
- M48: 10,470,056 km (0.115 R)
- M49: 10,655,408 km (0.057 R)
- M50: 11,114,972 km (0.099 R)
- M51: 11,286,860 km (0.091 R)
- M52: 11,442,292 km (0.112 R)
- M53: 11,755,251 km (0.064 R)
Planet 5 - Gas Giant
Semi-Major Axis: 4.84 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 801.7
Radius: 14.7
Gravity: 3.71 G
Time & Orbit
Eccentricity (e): 0.139
Orbit Range: 4.17 AU - 5.51 AU
Year: 4100 Days
Day: 7 Hours
Environment
Temp: -143 °C
Axial Tilt: 129 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (76)
Outer Limit: 38,651,835 km
- M1: 189,840 km (0.061 R)
- M2: 298,897 km (0.111 R)
- M3: 464,950 km (0.094 R)
- M4: 663,018 km (0.094 R)
- M5: 905,815 km (0.12 R)
- M6: 1,098,198 km (0.057 R)
- M7: 1,206,956 km (0.07 R)
- M8: 1,362,837 km (0.086 R)
- M9: 1,775,577 km (0.058 R)
- M10: 1,905,578 km (0.117 R)
- M11: 2,106,787 km (0.092 R)
- M12: 2,332,979 km (0.114 R)
- M13: 2,585,799 km (0.054 R)
- M14: 2,809,897 km (0.081 R)
- M15: 3,438,806 km (0.094 R)
- M16: 3,854,240 km (0.04 R)
- M17: 4,024,931 km (0.053 R)
- M18: 4,778,904 km (0.074 R)
- M19: 5,721,520 km (0.105 R)
- M20: 5,843,442 km (0.105 R)
- M21: 6,164,629 km (0.079 R)
- M22: 6,264,560 km (0.076 R)
- M23: 6,618,808 km (0.098 R)
- M24: 6,849,937 km (0.075 R)
- M25: 7,057,728 km (0.102 R)
- M26: 7,188,776 km (0.119 R)
- M27: 7,346,901 km (0.084 R)
- M28: 7,937,065 km (0.116 R)
- M29: 8,073,348 km (0.041 R)
- M30: 8,459,161 km (0.091 R)
- M31: 8,626,262 km (0.114 R)
- M32: 8,850,958 km (0.111 R)
- M33: 9,106,022 km (0.103 R)
- M34: 9,478,820 km (0.051 R)
- M35: 10,239,376 km (0.1 R)
- M36: 11,447,827 km (0.083 R)
- M37: 11,571,246 km (0.091 R)
- M38: 11,757,046 km (0.054 R)
- M39: 12,701,158 km (0.054 R)
- M40: 13,085,625 km (0.113 R)
- M41: 13,344,130 km (0.114 R)
- M42: 13,539,206 km (0.073 R)
- M43: 13,637,043 km (0.089 R)
- M44: 14,129,818 km (0.089 R)
- M45: 14,930,466 km (0.092 R)
- M46: 15,031,594 km (0.114 R)
- M47: 15,166,831 km (0.106 R)
- M48: 15,404,392 km (0.097 R)
- M49: 15,780,182 km (0.11 R)
- M50: 16,193,670 km (0.075 R)
- M51: 16,332,198 km (0.115 R)
- M52: 16,506,031 km (0.072 R)
- M53: 16,960,958 km (0.033 R)
- M54: 17,207,645 km (0.03 R)
- M55: 17,668,855 km (0.066 R)
- M56: 18,314,220 km (0.12 R)
- M57: 18,639,745 km (0.1 R)
- M58: 18,858,008 km (0.091 R)
- M59: 19,517,436 km (0.113 R)
- M60: 19,813,041 km (0.082 R)
- M61: 20,147,243 km (0.076 R)
- M62: 20,483,539 km (0.088 R)
- M63: 20,746,233 km (0.111 R)
- M64: 21,161,367 km (0.06 R)
- M65: 21,351,057 km (0.047 R)
- M66: 22,230,543 km (0.107 R)
- M67: 22,423,374 km (0.101 R)
- M68: 22,616,655 km (0.057 R)
- M69: 23,200,087 km (0.064 R)
- M70: 23,356,416 km (0.077 R)
- M71: 25,019,795 km (0.1 R)
- M72: 26,149,857 km (0.047 R)
- M73: 26,394,151 km (0.111 R)
- M74: 26,762,161 km (0.114 R)
- M75: 27,296,525 km (0.071 R)
- M76: 27,420,392 km (0.1 R)
Planet 6 - Gas Giant
Semi-Major Axis: 4.96 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 72.8
Radius: 11.6
Gravity: 0.54 G
Time & Orbit
Eccentricity (e): 0.185
Orbit Range: 4.04 AU - 5.88 AU
Year: 4253 Days
Day: 7.1 Hours
Environment
Temp: -156 °C
Axial Tilt: 20.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (55)
Outer Limit: 38,651,835 km
- M1: 156,928 km (0.049 R)
- M2: 234,569 km (0.053 R)
- M3: 379,380 km (0.092 R)
- M4: 464,501 km (0.069 R)
- M5: 557,850 km (0.105 R)
- M6: 652,396 km (0.119 R)
- M7: 788,082 km (0.094 R)
- M8: 1,057,807 km (0.079 R)
- M9: 1,170,903 km (0.065 R)
- M10: 1,472,193 km (0.104 R)
- M11: 1,655,749 km (0.082 R)
- M12: 1,895,854 km (0.069 R)
- M13: 2,045,452 km (0.059 R)
- M14: 2,137,305 km (0.05 R)
- M15: 2,272,242 km (0.111 R)
- M16: 2,529,251 km (0.119 R)
- M17: 2,978,494 km (0.107 R)
- M18: 3,212,614 km (0.051 R)
- M19: 3,332,143 km (0.111 R)
- M20: 3,416,516 km (0.107 R)
- M21: 4,287,475 km (0.119 R)
- M22: 4,392,792 km (0.079 R)
- M23: 4,539,099 km (0.058 R)
- M24: 5,015,269 km (0.078 R)
- M25: 5,154,245 km (0.104 R)
- M26: 5,422,025 km (0.09 R)
- M27: 5,521,807 km (0.098 R)
- M28: 5,607,826 km (0.097 R)
- M29: 5,781,359 km (0.111 R)
- M30: 5,927,217 km (0.094 R)
- M31: 6,148,472 km (0.045 R)
- M32: 6,675,057 km (0.032 R)
- M33: 7,294,841 km (0.103 R)
- M34: 7,659,710 km (0.059 R)
- M35: 8,079,183 km (0.114 R)
- M36: 8,374,040 km (0.102 R)
- M37: 8,506,285 km (0.038 R)
- M38: 8,589,311 km (0.112 R)
- M39: 8,672,488 km (0.103 R)
- M40: 8,974,526 km (0.061 R)
- M41: 9,194,734 km (0.112 R)
- M42: 9,416,737 km (0.099 R)
- M43: 9,675,242 km (0.075 R)
- M44: 9,953,494 km (0.085 R)
- M45: 10,146,326 km (0.101 R)
- M46: 10,287,397 km (0.061 R)
- M47: 10,482,472 km (0.03 R)
- M48: 11,092,832 km (0.061 R)
- M49: 11,402,499 km (0.113 R)
- M50: 11,475,802 km (0.105 R)
- M51: 11,659,658 km (0.108 R)
- M52: 11,918,612 km (0.043 R)
- M53: 12,179,660 km (0.114 R)
- M54: 12,292,008 km (0.093 R)
- M55: 12,764,139 km (0.11 R)
Planet 7 - Gas Giant
Semi-Major Axis: 4.96 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 277.6
Radius: 13.4
Gravity: 1.55 G
Time & Orbit
Eccentricity (e): 0.098
Orbit Range: 4.47 AU - 5.45 AU
Year: 4253 Days
Day: 10.7 Hours
Environment
Temp: -146 °C
Axial Tilt: 11.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (54)
Outer Limit: 38,651,835 km
- M1: 173,683 km (0.103 R)
- M2: 451,786 km (0.054 R)
- M3: 616,792 km (0.117 R)
- M4: 1,088,325 km (0.068 R)
- M5: 1,345,483 km (0.118 R)
- M6: 1,622,987 km (0.078 R)
- M7: 2,040,216 km (0.089 R)
- M8: 2,303,957 km (0.039 R)
- M9: 2,668,228 km (0.119 R)
- M10: 3,129,887 km (0.109 R)
- M11: 4,075,794 km (0.102 R)
- M12: 4,180,363 km (0.094 R)
- M13: 4,356,739 km (0.109 R)
- M14: 4,845,026 km (0.105 R)
- M15: 5,446,709 km (0.072 R)
- M16: 5,933,351 km (0.106 R)
- M17: 6,252,144 km (0.053 R)
- M18: 6,352,973 km (0.11 R)
- M19: 6,556,276 km (0.109 R)
- M20: 6,782,319 km (0.098 R)
- M21: 6,969,316 km (0.12 R)
- M22: 7,094,829 km (0.111 R)
- M23: 7,284,668 km (0.114 R)
- M24: 7,712,518 km (0.061 R)
- M25: 8,281,140 km (0.111 R)
- M26: 8,727,689 km (0.065 R)
- M27: 9,644,425 km (0.049 R)
- M28: 10,138,098 km (0.099 R)
- M29: 10,233,093 km (0.074 R)
- M30: 10,809,194 km (0.059 R)
- M31: 11,150,128 km (0.116 R)
- M32: 11,395,767 km (0.077 R)
- M33: 11,693,018 km (0.064 R)
- M34: 11,892,582 km (0.102 R)
- M35: 12,320,432 km (0.08 R)
- M36: 13,321,242 km (0.11 R)
- M37: 14,268,196 km (0.07 R)
- M38: 14,401,338 km (0.107 R)
- M39: 14,535,079 km (0.052 R)
- M40: 15,482,183 km (0.054 R)
- M41: 15,729,019 km (0.094 R)
- M42: 15,977,202 km (0.074 R)
- M43: 16,673,131 km (0.075 R)
- M44: 16,813,604 km (0.049 R)
- M45: 17,208,841 km (0.12 R)
- M46: 17,322,237 km (0.12 R)
- M47: 17,407,507 km (0.105 R)
- M48: 17,635,644 km (0.082 R)
- M49: 17,721,513 km (0.076 R)
- M50: 18,008,442 km (0.111 R)
- M51: 18,239,122 km (0.091 R)
- M52: 19,318,919 km (0.075 R)
- M53: 19,822,017 km (0.067 R)
- M54: 19,970,867 km (0.042 R)
Planet 8 - Gas Giant
Semi-Major Axis: 7.22 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 643.8
Radius: 11.2
Gravity: 5.13 G
Time & Orbit
Eccentricity (e): 0.125
Orbit Range: 6.32 AU - 8.12 AU
Year: 7469 Days
Day: 12.7 Hours
Environment
Temp: -160 °C
Axial Tilt: 45.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (88)
Outer Limit: 38,651,835 km
- M1: 189,840 km (0.042 R)
- M2: 370,105 km (0.101 R)
- M3: 531,671 km (0.111 R)
- M4: 663,317 km (0.071 R)
- M5: 898,934 km (0.082 R)
- M6: 1,060,200 km (0.115 R)
- M7: 1,249,142 km (0.097 R)
- M8: 1,430,904 km (0.07 R)
- M9: 1,660,836 km (0.107 R)
- M10: 2,028,398 km (0.061 R)
- M11: 2,265,660 km (0.096 R)
- M12: 2,376,661 km (0.119 R)
- M13: 2,627,238 km (0.102 R)
- M14: 2,697,100 km (0.088 R)
- M15: 3,455,561 km (0.075 R)
- M16: 3,792,755 km (0.079 R)
- M17: 3,925,149 km (0.083 R)
- M18: 4,032,411 km (0.089 R)
- M19: 4,582,781 km (0.084 R)
- M20: 4,838,294 km (0.055 R)
- M21: 5,098,445 km (0.111 R)
- M22: 5,363,383 km (0.057 R)
- M23: 5,906,573 km (0.094 R)
- M24: 6,060,659 km (0.12 R)
- M25: 6,626,438 km (0.096 R)
- M26: 7,241,883 km (0.061 R)
- M27: 9,411,202 km (0.115 R)
- M28: 9,627,670 km (0.036 R)
- M29: 9,736,428 km (0.089 R)
- M30: 10,065,543 km (0.083 R)
- M31: 10,212,897 km (0.098 R)
- M32: 10,435,499 km (0.113 R)
- M33: 10,547,248 km (0.093 R)
- M34: 10,622,047 km (0.074 R)
- M35: 11,036,583 km (0.052 R)
- M36: 12,272,411 km (0.033 R)
- M37: 12,469,581 km (0.063 R)
- M38: 13,308,675 km (0.094 R)
- M39: 13,429,999 km (0.08 R)
- M40: 13,755,524 km (0.091 R)
- M41: 14,083,592 km (0.059 R)
- M42: 14,915,207 km (0.089 R)
- M43: 15,762,529 km (0.05 R)
- M44: 16,149,090 km (0.065 R)
- M45: 16,582,176 km (0.06 R)
- M46: 16,843,823 km (0.067 R)
- M47: 17,238,911 km (0.057 R)
- M48: 17,415,436 km (0.112 R)
- M49: 17,726,001 km (0.085 R)
- M50: 17,859,592 km (0.075 R)
- M51: 18,172,701 km (0.097 R)
- M52: 18,352,517 km (0.043 R)
- M53: 18,804,303 km (0.032 R)
- M54: 19,857,771 km (0.117 R)
- M55: 19,996,448 km (0.066 R)
- M56: 20,789,167 km (0.099 R)
- M57: 20,883,115 km (0.12 R)
- M58: 21,687,353 km (0.112 R)
- M59: 22,021,405 km (0.088 R)
- M60: 22,261,061 km (0.111 R)
- M61: 23,374,667 km (0.095 R)
- M62: 23,472,355 km (0.115 R)
- M63: 25,203,950 km (0.076 R)
- M64: 25,555,206 km (0.101 R)
- M65: 25,655,885 km (0.106 R)
- M66: 26,211,791 km (0.108 R)
- M67: 26,313,368 km (0.103 R)
- M68: 26,414,945 km (0.029 R)
- M69: 28,214,906 km (0.069 R)
- M70: 28,475,356 km (0.096 R)
- M71: 29,313,852 km (0.107 R)
- M72: 29,524,785 km (0.112 R)
- M73: 29,630,401 km (0.07 R)
- M74: 29,895,040 km (0.102 R)
- M75: 30,640,187 km (0.097 R)
- M76: 30,800,706 km (0.072 R)
- M77: 32,257,639 km (0.088 R)
- M78: 32,420,851 km (0.11 R)
- M79: 32,857,527 km (0.064 R)
- M80: 33,406,252 km (0.108 R)
- M81: 34,345,876 km (0.093 R)
- M82: 34,735,429 km (0.091 R)
- M83: 34,902,679 km (0.111 R)
- M84: 35,574,822 km (0.076 R)
- M85: 36,138,208 km (0.076 R)
- M86: 36,364,400 km (0.099 R)
- M87: 38,363,327 km (0.116 R)
- M88: 38,651,901 km (0.082 R)
Kuiper Belt
Range: 30 - 51 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 298 - 15,877 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.