Blo Thae AI-D b12-1 [#2945408116841]
Blo Thae AI-D b12-1 A
/ M (Red dwarf) Star
(Scoopable)

Distance to arrival:
0 ls
Estimated value:
1,208 cr
Solar masses:
0.4180
Solar radius:
0.6249
Age:
5,046 million years
Luminosity:
Va
Surface temperature:
3,174 K
Blo Thae AI-D b12-1 A A Belt

Class:
Rocky
Mass:
14,539,000,000,000 Mt
Inner radius:
855,190 km
Outer radius:
1,804,200 km
Blo Thae AI-D b12-1 ABC 1
/ Rocky Ice world

Distance to arrival:
214 ls
Estimated value:
500 cr
Earth masses:
1.3410
Radius:
7,983 km
Surface pressure:
2,448.33 Atmospheres
Gravity:
0.86 G
Volcanism:
Major Water Geysers
Atmosphere:
Thick Ammonia-rich
Terraforming state:
Not terraformable
Surface temperature:
446 K
Blo Thae AI-D b12-1 ABC 2
/ Class I gas giant


Distance to arrival:
605 ls
Estimated value:
4,675 cr
Earth masses:
346.8379
Radius:
73,607 km
Reserve level:
Pristine
Gravity:
2.60 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
147 K
Blo Thae AI-D b12-1 ABC 2 a
/ Icy body
(Landable)

Distance to arrival:
604 ls
Estimated value:
500 cr
Earth masses:
0.0027
Radius:
1,231 km
Gravity:
0.07 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
103 K
Materials:
S
(27.2%)
C
(22.8%)
P
(14.6%)
Fe
(12.2%)
Ni
(9.2%)
Cr
(5.5%)
Ge
(3.5%)
V
(3.0%)
Mo
(0.8%)
Y
(0.7%)
Hg
(0.5%)
Blo Thae AI-D b12-1 ABC 2 b
/ Icy body
(Landable)

Distance to arrival:
604 ls
Estimated value:
500 cr
Earth masses:
0.0026
Radius:
1,207 km
Gravity:
0.07 G
Volcanism:
Carbon Dioxide Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
101 K
Materials:
S
(27.5%)
C
(23.1%)
P
(14.8%)
Fe
(12.3%)
Ni
(9.3%)
Se
(4.3%)
Ge
(3.6%)
V
(3.0%)
Mo
(0.8%)
Y
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 2 c
/ Icy body
(Landable)

Distance to arrival:
607 ls
Estimated value:
500 cr
Earth masses:
0.0071
Radius:
1,687 km
Gravity:
0.10 G
Volcanism:
Minor Carbon Dioxide Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
101 K
Materials:
S
(27.5%)
C
(23.1%)
P
(14.8%)
Fe
(12.3%)
Ni
(9.3%)
Cr
(5.5%)
Ge
(3.6%)
Zr
(1.4%)
Cd
(1.0%)
Sn
(0.7%)
Y
(0.7%)
Blo Thae AI-D b12-1 ABC 3
/ Class I gas giant

Distance to arrival:
910 ls
Estimated value:
4,671 cr
Earth masses:
344.4452
Radius:
73,283 km
Gravity:
2.61 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
128 K
Blo Thae AI-D b12-1 ABC 3 a
/ Icy body
(Landable)

Distance to arrival:
910 ls
Estimated value:
500 cr
Earth masses:
0.0161
Radius:
2,207 km
Gravity:
0.13 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
87 K
Materials:
S
(27.4%)
C
(23.1%)
P
(14.8%)
Fe
(12.3%)
Ni
(9.3%)
Mn
(5.1%)
Se
(4.3%)
As
(1.6%)
Nb
(0.8%)
Y
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 3 b
/ Icy body
(Landable)

Distance to arrival:
911 ls
Estimated value:
500 cr
Earth masses:
0.0059
Radius:
1,586 km
Gravity:
0.10 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
83 K
Materials:
S
(26.4%)
C
(22.2%)
P
(14.2%)
Fe
(11.8%)
Ni
(8.9%)
Cr
(5.3%)
Mn
(4.9%)
Se
(4.1%)
Cd
(0.9%)
Sb
(0.7%)
Hg
(0.5%)
Blo Thae AI-D b12-1 ABC 3 c
/ Icy body
(Landable)

Distance to arrival:
910 ls
Estimated value:
500 cr
Earth masses:
0.0112
Radius:
1,955 km
Gravity:
0.12 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
82 K
Materials:
S
(26.7%)
C
(22.4%)
P
(14.4%)
Fe
(12.1%)
Ni
(9.1%)
Cr
(5.4%)
Se
(4.2%)
Zn
(3.3%)
Cd
(0.9%)
Sn
(0.7%)
Y
(0.7%)
Blo Thae AI-D b12-1 ABC 3 c a
/ Icy body
(Landable)

Distance to arrival:
910 ls
Estimated value:
500 cr
Earth masses:
0.0006
Radius:
746 km
Gravity:
0.04 G
Volcanism:
Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
82 K
Materials:
S
(30.9%)
C
(25.9%)
P
(16.6%)
Fe
(9.5%)
Ni
(7.2%)
Cr
(4.3%)
Zn
(2.6%)
Zr
(1.1%)
Te
(0.8%)
Cd
(0.7%)
Hg
(0.4%)
Blo Thae AI-D b12-1 ABC 3 d
/ Icy body
(Landable)

Distance to arrival:
910 ls
Estimated value:
500 cr
Earth masses:
0.0196
Radius:
2,352 km
Gravity:
0.14 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
81 K
Materials:
S
(27.0%)
C
(22.7%)
P
(14.6%)
Fe
(12.1%)
Ni
(9.2%)
Cr
(5.4%)
Ge
(3.5%)
V
(3.0%)
Cd
(0.9%)
Nb
(0.8%)
Sb
(0.7%)
Blo Thae AI-D b12-1 ABC 4
/ Class III gas giant


Distance to arrival:
1,521 ls
Estimated value:
1,020 cr
Earth masses:
1,375.3789
Radius:
75,981 km
Reserve level:
Pristine
Gravity:
9.69 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
321 K
Blo Thae AI-D b12-1 ABC 4 a
/ Icy body
(Landable)

Distance to arrival:
1,522 ls
Estimated value:
500 cr
Earth masses:
0.0210
Radius:
2,274 km
Gravity:
0.17 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
117 K
Materials:
S
(23.9%)
C
(20.1%)
Fe
(14.0%)
P
(12.8%)
Ni
(10.6%)
Cr
(6.3%)
Mn
(5.8%)
Se
(3.7%)
Te
(1.1%)
Mo
(0.9%)
Sn
(0.8%)
Blo Thae AI-D b12-1 ABC 4 b
/ Icy body
(Landable)

Distance to arrival:
1,524 ls
Estimated value:
500 cr
Earth masses:
0.0443
Radius:
3,066 km
Gravity:
0.19 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
96 K
Materials:
S
(28.4%)
C
(23.8%)
P
(15.3%)
Fe
(12.7%)
Ni
(9.6%)
Zn
(3.5%)
V
(3.1%)
Zr
(1.5%)
Cd
(1.0%)
Mo
(0.8%)
Po
(0.3%)
Blo Thae AI-D b12-1 ABC 5
/ Class II gas giant


Distance to arrival:
1,561 ls
Estimated value:
29,844 cr
Earth masses:
689.2346
Radius:
76,947 km
Reserve level:
Pristine
Gravity:
4.74 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
182 K
Blo Thae AI-D b12-1 ABC 5 a
/ Icy body
(Landable)

Distance to arrival:
1,560 ls
Estimated value:
500 cr
Earth masses:
0.0180
Radius:
2,286 km
Gravity:
0.14 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
94 K
Materials:
S
(27.1%)
C
(22.8%)
P
(14.6%)
Fe
(12.1%)
Ni
(9.2%)
Mn
(5.0%)
Ge
(3.5%)
Zn
(3.3%)
Cd
(0.9%)
Mo
(0.8%)
Ru
(0.8%)
Blo Thae AI-D b12-1 ABC 6
/ Class I gas giant


Distance to arrival:
2,150 ls
Estimated value:
4,232 cr
Earth masses:
156.8429
Radius:
64,112 km
Reserve level:
Pristine
Gravity:
1.55 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
71 K
Blo Thae AI-D b12-1 ABC 6 a
/ Icy body
(Landable)

Distance to arrival:
2,150 ls
Estimated value:
500 cr
Earth masses:
0.0003
Radius:
608 km
Gravity:
0.04 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
52 K
Materials:
S
(27.1%)
C
(22.8%)
P
(14.6%)
Fe
(12.1%)
Ni
(9.2%)
Cr
(5.5%)
Mn
(5.0%)
Zr
(1.4%)
Nb
(0.8%)
Sb
(0.8%)
Sn
(0.7%)
Blo Thae AI-D b12-1 ABC 6 b
/ Icy body
(Landable)

Distance to arrival:
2,152 ls
Estimated value:
500 cr
Earth masses:
0.0006
Radius:
726 km
Gravity:
0.04 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
52 K
Materials:
S
(26.5%)
C
(22.3%)
P
(14.3%)
Fe
(12.2%)
Ni
(9.2%)
Cr
(5.5%)
Mn
(5.1%)
Zn
(3.3%)
Sn
(0.7%)
Hg
(0.5%)
Po
(0.3%)
Blo Thae AI-D b12-1 ABC 6 c
/ Icy body
(Landable)

Distance to arrival:
2,152 ls
Estimated value:
500 cr
Earth masses:
0.0003
Radius:
587 km
Gravity:
0.03 G
Volcanism:
Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
52 K
Materials:
S
(28.3%)
C
(23.8%)
P
(15.2%)
Fe
(11.9%)
Ni
(9.0%)
Mn
(4.9%)
Ge
(3.5%)
Zr
(1.4%)
Mo
(0.8%)
Y
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 6 d
/ Icy body
(Landable)

Distance to arrival:
2,153 ls
Estimated value:
500 cr
Earth masses:
0.0006
Radius:
759 km
Surface pressure:
0.00 Atmospheres
Gravity:
0.04 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
51 K
Materials:
S
(26.6%)
C
(22.4%)
P
(14.3%)
Fe
(11.9%)
Ni
(9.0%)
Cr
(5.4%)
Mn
(4.9%)
Zn
(3.2%)
Ru
(0.7%)
Sn
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 6 e
/ Icy body

Distance to arrival:
2,145 ls
Estimated value:
500 cr
Earth masses:
0.0007
Radius:
782 km
Surface pressure:
0.00 Atmospheres
Gravity:
0.05 G
Volcanism:
No volcanism
Atmosphere:
Thin Argon
Terraforming state:
Not terraformable
Surface temperature:
51 K
Blo Thae AI-D b12-1 ABC 6 f
/ Icy body

Distance to arrival:
2,146 ls
Estimated value:
500 cr
Earth masses:
0.0009
Radius:
861 km
Surface pressure:
0.00 Atmospheres
Gravity:
0.05 G
Volcanism:
No volcanism
Atmosphere:
Thin Argon
Terraforming state:
Not terraformable
Surface temperature:
51 K
Blo Thae AI-D b12-1 ABC 6 g
/ Icy body
(Landable)

Distance to arrival:
2,142 ls
Estimated value:
500 cr
Earth masses:
0.0036
Radius:
1,342 km
Gravity:
0.08 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
50 K
Materials:
S
(27.1%)
C
(22.8%)
P
(14.6%)
Fe
(12.1%)
Ni
(9.2%)
Cr
(5.5%)
Ge
(3.5%)
V
(3.0%)
Cd
(0.9%)
Y
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 7
/ Class I gas giant

Distance to arrival:
2,882 ls
Estimated value:
4,481 cr
Earth masses:
248.9505
Radius:
67,020 km
Gravity:
2.25 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
77 K
Blo Thae AI-D b12-1 ABC 7 a
/ Icy body
(Landable)

Distance to arrival:
2,884 ls
Estimated value:
500 cr
Earth masses:
0.0176
Radius:
2,271 km
Gravity:
0.14 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
47 K
Materials:
S
(27.0%)
C
(22.7%)
P
(14.5%)
Fe
(12.1%)
Ni
(9.2%)
Cr
(5.4%)
Ge
(3.5%)
Zn
(3.3%)
Cd
(0.9%)
Ru
(0.8%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 7 b
/ Icy body
(Landable)

Distance to arrival:
2,884 ls
Estimated value:
500 cr
Earth masses:
0.0067
Radius:
1,656 km
Gravity:
0.10 G
Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
47 K
Materials:
S
(27.3%)
C
(23.0%)
P
(14.7%)
Fe
(12.3%)
Ni
(9.3%)
Se
(4.3%)
Ge
(3.6%)
Zn
(3.3%)
Te
(0.9%)
Sn
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 ABC 7 c
/ Icy body
(Landable)

Distance to arrival:
2,884 ls
Estimated value:
500 cr
Earth masses:
0.0076
Radius:
1,724 km
Gravity:
0.10 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
46 K
Materials:
S
(27.2%)
C
(22.8%)
P
(14.6%)
Fe
(12.2%)
Ni
(9.2%)
Mn
(5.0%)
Ge
(3.5%)
Zn
(3.3%)
Nb
(0.8%)
Y
(0.7%)
Hg
(0.5%)
Blo Thae AI-D b12-1 ABC 7 d
/ Icy body
(Landable)

Distance to arrival:
2,876 ls
Estimated value:
500 cr
Earth masses:
0.0045
Radius:
1,450 km
Gravity:
0.09 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
46 K
Materials:
S
(27.5%)
C
(23.2%)
P
(14.8%)
Fe
(12.4%)
Ni
(9.3%)
Se
(4.3%)
Zn
(3.4%)
V
(3.0%)
Nb
(0.8%)
Mo
(0.8%)
Tc
(0.4%)
Blo Thae AI-D b12-1 ABC 7 e
/ Icy body
(Landable)

Distance to arrival:
2,892 ls
Estimated value:
500 cr
Earth masses:
0.0118
Radius:
1,990 km
Gravity:
0.12 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
45 K
Materials:
S
(27.5%)
C
(23.1%)
P
(14.8%)
Fe
(12.5%)
Ni
(9.4%)
Ge
(3.6%)
Zn
(3.4%)
V
(3.1%)
Cd
(1.0%)
Te
(0.9%)
Nb
(0.9%)
Blo Thae AI-D b12-1 ABC 7 e a
/ Icy body
(Landable)

Distance to arrival:
2,892 ls
Estimated value:
500 cr
Earth masses:
0.0007
Radius:
799 km
Gravity:
0.04 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
45 K
Materials:
S
(30.4%)
C
(25.5%)
P
(16.4%)
Fe
(9.4%)
Ni
(7.1%)
Cr
(4.2%)
Ge
(3.1%)
Zn
(2.5%)
Cd
(0.7%)
Hg
(0.4%)
Tc
(0.3%)
Blo Thae AI-D b12-1 ABC 7 f
/ Icy body
(Landable)

Distance to arrival:
2,896 ls
Estimated value:
500 cr
Earth masses:
0.0079
Radius:
1,745 km
Gravity:
0.11 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
45 K
Materials:
S
(26.4%)
C
(22.2%)
P
(14.2%)
Fe
(11.8%)
Ni
(9.0%)
Cr
(5.3%)
Mn
(4.9%)
Se
(4.1%)
Cd
(0.9%)
W
(0.7%)
Tc
(0.4%)
Blo Thae AI-D b12-1 ABC 8
/ Icy body


Distance to arrival:
4,059 ls
Estimated value:
634 cr
Earth masses:
29.4170
Radius:
19,534 km
Surface pressure:
5.00 Atmospheres
Reserve level:
Pristine
Gravity:
3.14 G
Volcanism:
Water Geysers
Atmosphere:
Thick Helium
Terraforming state:
Not terraformable
Surface temperature:
39 K
Blo Thae AI-D b12-1 B
/ M (Red dwarf) Star
(Scoopable)

Distance to arrival:
51 ls
Estimated value:
1,203 cr
Solar masses:
0.1797
Solar radius:
0.3699
Age:
5,046 million years
Luminosity:
VI
Surface temperature:
2,094 K
Blo Thae AI-D b12-1 C
/ L (Brown dwarf) Star

Distance to arrival:
48 ls
Estimated value:
1,203 cr
Solar masses:
0.1641
Solar radius:
0.3352
Age:
5,046 million years
Luminosity:
V
Surface temperature:
1,997 K
Blo Thae AI-D b12-1 D
/ M (Red dwarf) Star
(Scoopable)

Distance to arrival:
348,216 ls
Estimated value:
1,205 cr
Solar masses:
0.2500
Solar radius:
0.4436
Age:
5,046 million years
Luminosity:
Va
Surface temperature:
2,438 K
Blo Thae AI-D b12-1 D 1
/ Rocky Ice world

Distance to arrival:
348,665 ls
Estimated value:
525 cr
Earth masses:
4.0517
Radius:
10,802 km
Surface pressure:
0.68 Atmospheres
Gravity:
1.41 G
Volcanism:
Major Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable
Surface temperature:
60 K
Blo Thae AI-D b12-1 D 2
/ Icy body

Distance to arrival:
348,394 ls
Estimated value:
523 cr
Earth masses:
3.9181
Radius:
11,542 km
Surface pressure:
0.73 Atmospheres
Gravity:
1.20 G
Volcanism:
Major Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable
Surface temperature:
53 K
Blo Thae AI-D b12-1 D 2 a
/ Icy body
(Landable)

Distance to arrival:
348,397 ls
Estimated value:
500 cr
Earth masses:
0.1010
Radius:
4,045 km
Surface pressure:
0.00 Atmospheres
Gravity:
0.25 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
52 K
Materials:
S
(27.9%)
C
(23.5%)
P
(15.0%)
Fe
(12.2%)
Ni
(9.2%)
Mn
(5.0%)
Zn
(3.3%)
As
(1.4%)
Cd
(0.9%)
Te
(0.8%)
W
(0.7%)
Blo Thae AI-D b12-1 D 3
/ Icy body

Distance to arrival:
348,452 ls
Estimated value:
503 cr
Earth masses:
2.4711
Radius:
10,153 km
Surface pressure:
0.49 Atmospheres
Gravity:
0.98 G
Volcanism:
Major Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable
Surface temperature:
40 K
Blo Thae AI-D b12-1 D 4
/ Icy body

Distance to arrival:
348,444 ls
Estimated value:
500 cr
Earth masses:
1.7008
Radius:
9,111 km
Surface pressure:
0.33 Atmospheres
Gravity:
0.83 G
Volcanism:
Major Water Geysers
Atmosphere:
Neon-rich
Terraforming state:
Not terraformable
Surface temperature:
40 K
Blo Thae AI-D b12-1 D 5
/ Icy body

Distance to arrival:
346,739 ls
Estimated value:
500 cr
Earth masses:
1.4204
Radius:
8,641 km
Surface pressure:
0.28 Atmospheres
Gravity:
0.77 G
Volcanism:
Major Water Geysers
Atmosphere:
Neon-rich
Terraforming state:
Not terraformable
Surface temperature:
34 K
Blo Thae AI-D b12-1 D 6
/ Icy body

Distance to arrival:
347,186 ls
Estimated value:
530 cr
Earth masses:
4.5875
Radius:
12,024 km
Surface pressure:
0.84 Atmospheres
Gravity:
1.29 G
Volcanism:
Major Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable
Surface temperature:
31 K
Blo Thae AI-D b12-1 D 6 a
/ Icy body
(Landable)

Distance to arrival:
347,193 ls
Estimated value:
500 cr
Earth masses:
0.2944
Radius:
5,679 km
Surface pressure:
0.00 Atmospheres
Gravity:
0.37 G
Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable
Surface temperature:
30 K
Materials:
S
(27.8%)
C
(23.4%)
P
(15.0%)
Fe
(12.1%)
Ni
(9.1%)
Se
(4.4%)
Ge
(3.2%)
V
(3.0%)
Mo
(0.8%)
Sb
(0.7%)
W
(0.7%)
Blo Thae AI-D b12-1 D 7
/ Icy body

Distance to arrival:
346,147 ls
Estimated value:
500 cr
Earth masses:
1.8041
Radius:
9,270 km
Surface pressure:
0.38 Atmospheres
Gravity:
0.85 G
Volcanism:
Major Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable
Surface temperature:
26 K