Dumbau MM-V d2-36 [#1250783466011]

100.00%
Dumbau MM-V d2-36 A / G (White-Yellow) Star (Scoopable)
Distance to arrival:
0 ls
Estimated value:
1,217 cr

Solar masses:
0.9414
Solar radius:
0.9245
Age:
1,554 million years
Luminosity:
Vab

Surface temperature:
5,496 K
Dumbau MM-V d2-36 A A Belt
Class:
Rocky

Mass:
133,200,000,000,000 Mt

Inner radius:
1,163,300 km
Outer radius:
2,365,000 km
Dumbau MM-V d2-36 A 1 / High metal content world
Distance to arrival:
211 ls
Estimated value:
16,473 cr

Earth masses:
3.0291
Radius:
8,371 km

Surface pressure:
421.12 Atmospheres

Reserve level:
Pristine

Gravity:
1.76 G

Volcanism:
Major Silicate Vapour Geysers
Atmosphere:
Hot thick Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
1,233 K
Dumbau MM-V d2-36 A 1 a / Rocky body (Landable)
Distance to arrival:
211 ls
Estimated value:
500 cr

Earth masses:
0.0003
Radius:
480 km

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
356 K

Materials:
Fe (18.6%) S (18.0%) C (15.1%) Ni (14.0%) P (9.7%) Cr (8.4%) Mn (7.7%) V (4.6%) Cd (1.4%) Te (1.4%) Nb (1.3%)
Dumbau MM-V d2-36 A 2 / High metal content world
Distance to arrival:
293 ls
Estimated value:
16,585 cr

Earth masses:
3.2866
Radius:
8,563 km

Surface pressure:
467.73 Atmospheres

Reserve level:
Pristine

Gravity:
1.82 G

Volcanism:
Major Silicate Vapour Geysers
Atmosphere:
Hot thick Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
1,057 K
Dumbau MM-V d2-36 A 3 / Class II gas giant
Distance to arrival:
632 ls
Estimated value:
27,061 cr

Earth masses:
328.3036
Radius:
72,347 km

Reserve level:
Pristine

Gravity:
2.55 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
245 K
Dumbau MM-V d2-36 A 3 a / Rocky body (Landable)
Distance to arrival:
631 ls
Estimated value:
500 cr

Earth masses:
0.0005
Radius:
568 km

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
216 K

Materials:
Fe (19.7%) S (19.1%) C (16.0%) Ni (14.9%) P (10.3%) Cr (8.9%) Zn (5.4%) Zr (2.3%) Cd (1.5%) Ru (1.2%) Hg (0.9%)
Dumbau MM-V d2-36 A 3 b / Rocky body (Landable)
Distance to arrival:
634 ls
Estimated value:
500 cr

Earth masses:
0.0006
Radius:
605 km

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
215 K

Materials:
Fe (20.7%) S (20.0%) C (16.8%) Ni (15.7%) P (10.8%) Ge (5.9%) Se (3.1%) Zr (2.4%) Cd (1.6%) Te (1.5%) Nb (1.4%)
Dumbau MM-V d2-36 A 4 / Water world
Distance to arrival:
632 ls
Estimated value:
298,748 cr

Earth masses:
1.9896
Radius:
7,506 km

Surface pressure:
68.53 Atmospheres

Reserve level:
Pristine

Gravity:
1.44 G

Volcanism:
Minor Metallic Magma
Atmosphere:
Thick Argon-rich
Terraforming state:
Candidate for terraforming

Surface temperature:
270 K
Dumbau MM-V d2-36 A 5 / Class III gas giant
Distance to arrival:
889 ls
Estimated value:
947 cr

Earth masses:
801.2458
Radius:
75,585 km

Gravity:
5.71 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
300 K
Dumbau MM-V d2-36 A 5 a / Rocky body
Distance to arrival:
888 ls
Estimated value:
500 cr

Earth masses:
0.0014
Radius:
787 km

Gravity:
0.09 G

Volcanism:
Major Rocky Magma
Atmosphere:
Sulphur dioxide
Terraforming state:
Not terraformable

Surface temperature:
205 K
Dumbau MM-V d2-36 A 5 b / Rocky body (Landable)
Distance to arrival:
887 ls
Estimated value:
500 cr

Earth masses:
0.0013
Radius:
775 km

Gravity:
0.09 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
201 K

Materials:
Fe (18.7%) S (18.1%) C (15.2%) Ni (14.1%) P (9.7%) Cr (8.4%) Mn (7.7%) Zn (5.1%) Sb (1.1%) W (1.0%) Hg (0.8%)
Dumbau MM-V d2-36 A 5 c / Rocky body (Landable)
Distance to arrival:
891 ls
Estimated value:
500 cr

Earth masses:
0.0010
Radius:
700 km

Gravity:
0.08 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
198 K

Materials:
Fe (19.0%) S (18.4%) C (15.5%) Ni (14.4%) P (9.9%) Cr (8.6%) Ge (5.5%) Zn (5.2%) Nb (1.3%) Y (1.1%) Sn (1.1%)
Dumbau MM-V d2-36 A 5 d / Rocky body (Landable)
Distance to arrival:
886 ls
Estimated value:
500 cr

Earth masses:
0.0006
Radius:
606 km

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
194 K

Materials:
Fe (19.2%) S (18.6%) C (15.6%) Ni (14.5%) P (10.0%) Mn (7.9%) Zn (5.2%) V (4.7%) Cd (1.5%) Te (1.4%) Nb (1.3%)
Dumbau MM-V d2-36 A 5 e / Rocky body (Landable)
Distance to arrival:
892 ls
Estimated value:
500 cr

Earth masses:
0.0014
Radius:
778 km

Gravity:
0.09 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
193 K

Materials:
Fe (19.8%) S (19.1%) C (16.1%) Ni (15.0%) P (10.3%) Mn (8.2%) Zn (5.4%) Zr (2.3%) Nb (1.4%) Mo (1.3%) Y (1.2%)
Dumbau MM-V d2-36 A 5 f / Rocky body (Landable)
Distance to arrival:
882 ls
Estimated value:
500 cr

Earth masses:
0.0015
Radius:
805 km

Gravity:
0.09 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
189 K

Materials:
Fe (20.0%) S (19.3%) C (16.3%) Ni (15.1%) P (10.4%) Mn (8.3%) V (4.9%) As (2.6%) Y (1.2%) W (1.1%) Hg (0.9%)
Dumbau MM-V d2-36 A 5 g / Rocky body (Landable)
Distance to arrival:
882 ls
Estimated value:
500 cr

Earth masses:
0.0009
Radius:
678 km

Gravity:
0.08 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
189 K

Materials:
Fe (18.5%) S (17.9%) C (15.0%) Ni (14.0%) P (9.6%) Cr (8.3%) Mn (7.6%) Ge (5.3%) Te (1.4%) Nb (1.3%) Mo (1.2%)
Dumbau MM-V d2-36 A 6 / Class I gas giant
Distance to arrival:
1,549 ls
Estimated value:
3,621 cr

Earth masses:
40.4824
Radius:
42,907 km

Reserve level:
Pristine

Gravity:
0.89 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
134 K
Dumbau MM-V d2-36 A 6 a / Rocky body
Distance to arrival:
1,550 ls
Estimated value:
500 cr

Earth masses:
0.0004
Radius:
539 km

Surface pressure:
0.73 Atmospheres

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
219 K
Dumbau MM-V d2-36 A 6 b / Rocky body
Distance to arrival:
1,550 ls
Estimated value:
500 cr

Earth masses:
0.0003
Radius:
479 km

Surface pressure:
0.44 Atmospheres

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
208 K
Dumbau MM-V d2-36 A 6 c / Rocky body
Distance to arrival:
1,547 ls
Estimated value:
500 cr

Earth masses:
0.0007
Radius:
618 km

Surface pressure:
0.01 Atmospheres

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
Thin Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
153 K
Dumbau MM-V d2-36 A 6 d / Rocky body
Distance to arrival:
1,547 ls
Estimated value:
500 cr

Earth masses:
0.0004
Radius:
527 km

Surface pressure:
0.01 Atmospheres

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
Thin Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
151 K
Dumbau MM-V d2-36 A 6 e / Rocky body
Distance to arrival:
1,552 ls
Estimated value:
500 cr

Earth masses:
0.0005
Radius:
560 km

Surface pressure:
0.01 Atmospheres

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
Thin Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
152 K
Dumbau MM-V d2-36 A 6 f / Rocky body
Distance to arrival:
1,548 ls
Estimated value:
500 cr

Earth masses:
0.0006
Radius:
600 km

Surface pressure:
0.01 Atmospheres

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
Thin Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
153 K
Dumbau MM-V d2-36 A 7 / Class III gas giant
Distance to arrival:
2,233 ls
Estimated value:
1,070 cr

Earth masses:
1,918.8148
Radius:
73,137 km

Reserve level:
Pristine

Gravity:
14.59 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
492 K
Dumbau MM-V d2-36 A 7 a / Rocky body (Landable)
Distance to arrival:
2,231 ls
Estimated value:
500 cr

Earth masses:
0.0068
Radius:
1,325 km

Gravity:
0.16 G

Volcanism:
Minor Metallic Magma
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
196 K

Materials:
Fe (19.6%) S (19.0%) C (15.9%) Ni (14.8%) P (10.2%) Cr (8.8%) Zn (5.3%) Se (3.0%) Sb (1.2%) Sn (1.2%) W (1.1%)
Dumbau MM-V d2-36 A 7 b / Rocky body
Distance to arrival:
2,229 ls
Estimated value:
500 cr

Earth masses:
0.0126
Radius:
1,619 km

Surface pressure:
0.00 Atmospheres

Gravity:
0.19 G

Volcanism:
No volcanism
Atmosphere:
Thin Ammonia
Terraforming state:
Not terraformable

Surface temperature:
165 K
Dumbau MM-V d2-36 A 7 c / Rocky body
Distance to arrival:
2,236 ls
Estimated value:
500 cr

Earth masses:
0.0121
Radius:
1,597 km

Surface pressure:
0.00 Atmospheres

Gravity:
0.19 G

Volcanism:
No volcanism
Atmosphere:
Thin Ammonia
Terraforming state:
Not terraformable

Surface temperature:
158 K
Dumbau MM-V d2-36 A 7 c a / Rocky body (Landable)
Distance to arrival:
2,236 ls
Estimated value:
500 cr

Earth masses:
0.0007
Radius:
640 km

Gravity:
0.07 G

Volcanism:
Major Silicate Vapour Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
157 K

Materials:
S (20.3%) Fe (18.1%) C (17.0%) Ni (13.7%) P (10.9%) Cr (8.2%) Ge (6.0%) Se (3.2%) Cd (1.4%) Hg (0.8%) Po (0.4%)
Dumbau MM-V d2-36 A 7 d / Rocky body (Landable)
Distance to arrival:
2,240 ls
Estimated value:
500 cr

Earth masses:
0.0069
Radius:
1,331 km

Gravity:
0.16 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
151 K

Materials:
Fe (19.7%) S (19.1%) C (16.0%) Ni (14.9%) P (10.3%) Mn (8.1%) V (4.8%) Se (3.0%) Cd (1.5%) Nb (1.4%) Sb (1.2%)
Dumbau MM-V d2-36 A 8 / Class I gas giant
Distance to arrival:
2,139 ls
Estimated value:
2,898 cr

Earth masses:
4.0866
Radius:
20,960 km

Reserve level:
Pristine

Gravity:
0.38 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
123 K
Dumbau MM-V d2-36 A 8 a / Rocky body (Landable)
Distance to arrival:
2,138 ls
Estimated value:
500 cr

Earth masses:
0.0004
Radius:
499 km

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
125 K

Materials:
Fe (19.6%) S (19.0%) C (15.9%) Ni (14.8%) P (10.2%) Mn (8.1%) Ge (5.6%) Se (3.0%) Cd (1.5%) Y (1.2%) Sn (1.2%)
Dumbau MM-V d2-36 A 8 b / Rocky body (Landable)
Distance to arrival:
2,139 ls
Estimated value:
500 cr

Earth masses:
0.0004
Radius:
501 km

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
125 K

Materials:
Fe (19.2%) S (18.4%) C (15.5%) Ni (14.5%) P (9.9%) Cr (8.6%) Ge (5.5%) V (4.7%) Cd (1.5%) Te (1.4%) Hg (0.8%)
Dumbau MM-V d2-36 A 9 / Gas giant with water-based life
Distance to arrival:
2,973 ls
Estimated value:
944 cr

Earth masses:
783.7979
Radius:
76,346 km

Gravity:
5.47 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
219 K
Dumbau MM-V d2-36 A 9 a / Icy body (Landable)
Distance to arrival:
2,968 ls
Estimated value:
500 cr

Earth masses:
0.0131
Radius:
2,004 km

Gravity:
0.13 G

Volcanism:
Minor Nitrogen Magma
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
101 K

Materials:
S (25.5%) C (21.5%) P (13.7%) Fe (13.4%) Ni (10.2%) Cr (6.1%) Ge (3.9%) V (3.3%) Cd (1.0%) Ru (0.8%) Hg (0.6%)
Dumbau MM-V d2-36 A 9 b / Icy body (Landable)
Distance to arrival:
2,971 ls
Estimated value:
500 cr

Earth masses:
0.0306
Radius:
2,677 km

Gravity:
0.17 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
97 K

Materials:
S (25.5%) C (21.5%) P (13.7%) Fe (12.8%) Ni (9.7%) Cr (5.7%) Mn (5.3%) Zn (3.5%) Nb (0.9%) Ru (0.8%) Sn (0.8%)
Dumbau MM-V d2-36 A 9 b a / Icy body (Landable)
Distance to arrival:
2,971 ls
Estimated value:
500 cr

Earth masses:
0.0029
Radius:
1,281 km

Gravity:
0.07 G

Volcanism:
Major Water Geysers
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
97 K

Materials:
S (29.1%) C (24.5%) P (15.7%) Fe (9.8%) Ni (7.4%) Se (4.6%) Cr (4.4%) Zn (2.7%) Te (0.8%) Cd (0.8%) Hg (0.4%)
Dumbau MM-V d2-36 A 9 c / Icy body (Landable)
Distance to arrival:
2,964 ls
Estimated value:
500 cr

Earth masses:
0.0343
Radius:
2,821 km

Gravity:
0.18 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
93 K

Materials:
S (27.5%) C (23.1%) P (14.8%) Fe (12.5%) Ni (9.5%) Ge (3.6%) Zn (3.4%) V (3.1%) Cd (1.0%) Ru (0.8%) Sn (0.7%)
Dumbau MM-V d2-36 A 9 d / Icy body (Landable)
Distance to arrival:
2,964 ls
Estimated value:
500 cr

Earth masses:
0.0280
Radius:
2,641 km

Gravity:
0.16 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
93 K

Materials:
S (27.4%) C (23.0%) P (14.7%) Fe (12.4%) Ni (9.4%) Cr (5.6%) Zn (3.4%) As (1.6%) Cd (1.0%) Ru (0.8%) Sn (0.7%)
Dumbau MM-V d2-36 A 10 / Class III gas giant
Distance to arrival:
4,237 ls
Estimated value:
1,143 cr

Earth masses:
3,027.2178
Radius:
67,389 km

Reserve level:
Pristine

Gravity:
27.12 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
759 K
Dumbau MM-V d2-36 A 10 a / Rocky Ice world (Landable)
Distance to arrival:
4,239 ls
Estimated value:
500 cr

Earth masses:
0.0001
Radius:
387 km

Gravity:
0.04 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
182 K

Materials:
S (20.7%) Fe (18.3%) C (17.4%) Ni (13.8%) P (11.2%) Cr (8.2%) Ge (5.2%) Zr (2.1%) Mo (1.2%) Ru (1.1%) Hg (0.8%)
Dumbau MM-V d2-36 A 10 b / Rocky Ice world
Distance to arrival:
4,240 ls
Estimated value:
500 cr

Earth masses:
0.0002
Radius:
430 km

Surface pressure:
0.00 Atmospheres

Gravity:
0.04 G

Volcanism:
No volcanism
Atmosphere:
Thin Ammonia
Terraforming state:
Not terraformable

Surface temperature:
171 K
Dumbau MM-V d2-36 A 10 c / Rocky Ice world
Distance to arrival:
4,245 ls
Estimated value:
500 cr

Earth masses:
0.0007
Radius:
669 km

Surface pressure:
51.63 Atmospheres

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
Thick Carbon dioxide
Terraforming state:
Not terraformable

Surface temperature:
369 K
Dumbau MM-V d2-36 A 10 d / Rocky Ice world (Landable)
Distance to arrival:
4,245 ls
Estimated value:
500 cr

Earth masses:
0.0012
Radius:
828 km

Gravity:
0.07 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
128 K

Materials:
S (23.4%) C (19.7%) Fe (17.0%) Ni (12.9%) P (12.6%) Ge (4.9%) V (4.2%) Zr (2.0%) Cd (1.3%) Y (1.0%) W (0.9%)
Dumbau MM-V d2-36 A 10 e / Rocky Ice world (Landable)
Distance to arrival:
4,244 ls
Estimated value:
500 cr

Earth masses:
0.0008
Radius:
718 km

Gravity:
0.06 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
115 K

Materials:
S (23.4%) C (19.7%) Fe (17.0%) Ni (12.9%) P (12.6%) Cr (7.6%) As (2.2%) Zr (2.0%) Mo (1.1%) Sn (1.0%) Tc (0.6%)
Dumbau MM-V d2-36 A 10 f / Icy body (Landable)
Distance to arrival:
4,241 ls
Estimated value:
500 cr

Earth masses:
0.0024
Radius:
1,134 km

Gravity:
0.08 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
108 K

Materials:
S (25.1%) C (21.1%) Fe (14.0%) P (13.5%) Ni (10.6%) Mn (5.8%) Ge (4.0%) V (3.4%) Te (1.0%) Sn (0.8%) Hg (0.6%)
Dumbau MM-V d2-36 A 10 g / Icy body (Landable)
Distance to arrival:
4,272 ls
Estimated value:
500 cr

Earth masses:
0.0027
Radius:
1,181 km

Gravity:
0.08 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
102 K

Materials:
S (24.9%) C (20.9%) Fe (13.9%) P (13.4%) Ni (10.5%) Cr (6.2%) Ge (4.0%) Se (3.9%) Nb (1.0%) Mo (0.9%) Tc (0.5%)
Dumbau MM-V d2-36 A 10 h / Icy body (Landable)
Distance to arrival:
4,272 ls
Estimated value:
500 cr

Earth masses:
0.0026
Radius:
1,165 km

Gravity:
0.08 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
102 K

Materials:
S (24.8%) C (20.9%) Fe (13.8%) P (13.4%) Ni (10.5%) Cr (6.2%) Ge (4.0%) Zn (3.8%) Cd (1.1%) Y (0.8%) Sn (0.8%)
Dumbau MM-V d2-36 A 11 / Icy body
Distance to arrival:
4,085 ls
Estimated value:
609 cr

Earth masses:
20.0196
Radius:
17,490 km

Surface pressure:
4.92 Atmospheres

Gravity:
2.66 G

Volcanism:
Water Geysers
Atmosphere:
Helium
Terraforming state:
Not terraformable

Surface temperature:
94 K
Dumbau MM-V d2-36 A 12 / Class I gas giant
Distance to arrival:
15,045 ls
Estimated value:
4,667 cr

Earth masses:
342.4172
Radius:
68,025 km

Gravity:
3.01 G

Volcanism:
No volcanism
Atmosphere:
No atmosphere
Terraforming state:
Not terraformable

Surface temperature:
89 K
Dumbau MM-V d2-36 B / M (Red dwarf) Star (Scoopable)
Distance to arrival:
173,440 ls
Estimated value:
1,206 cr

Solar masses:
0.3359
Solar radius:
0.4869
Age:
1,554 million years
Luminosity:
Va

Surface temperature:
2,889 K