Constellation
Hydra
Hydra (Hya) is one of the 88 constellations recognised by the International Astronomical Union. Its brightest star is Alphard (magnitude 1.99).
| Latin name | Hydra |
|---|---|
| Abbreviation | Hya |
| Brightest star | Alphard |
| Stars in this encyclopedia | 504 |
| Stars with exoplanets | 70 |
| Deep-sky objects | 26 |
| Galaxies | 78 |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. It stands highest at midnight in February, the best time to observe it.
Its brightest stars
- Alphard 1.99 · 180.3 light-years
- γ Hya 2.99 · 127.8 light-years
- ζ Hya 3.11 · 153.0 light-years
- ν Hya 3.11 · 137.1 light-years
- π Hya 3.25 · 105.6 light-years
- Ashlesha 3.38 · 129.3 light-years
- ξ Hya 3.54 · 130.7 light-years
- λ Hya 3.61 · 108.6 light-years
- μ Hya 3.83 · 243.9 light-years
- θ Hya 3.89 · 120.5 light-years
- Ukdah 3.90 · 252.7 light-years
- HIP 41307 3.91 · 128.7 light-years
- Zhang 4.11 · 248.5 light-years
- δ Hya 4.14 · 177.0 light-years
- β Hya 4.29 · 309.7 light-years
- η Hya 4.30 · 510.8 light-years
- 12 Hya 4.32 · 205.3 light-years
- ρ Hya 4.35 · 312.3 light-years
- 58 Hya 4.42 · 301.9 light-years
- Minchir 4.45 · 375.4 light-years
- τ² Hya 4.54 · 591.7 light-years
- τ¹ Hya 4.59 · 59.4 light-years
- υ² Hya 4.60 · 327.8 light-years
- HIP 42835 4.63 · 933.2 light-years
- HIP 47310 4.68 · 315.6 light-years
Its stars with exoplanets
- HD 79181 1 planet(s)
- HD 102888 1 planet(s)
- HD 96700 3 planet(s)
- HD 82943 2 planet(s)
- HD 90156 1 planet(s)
- HD 94771 1 planet(s)
- HD 86264 1 planet(s)
- HD 75302 1 planet(s)
- HD 72659 2 planet(s)
- HD 86950 1 planet(s)
- HD 74156 2 planet(s)
- HD 86226 2 planet(s)
- HD 128356 1 planet(s)
- TOI-1203 4 planet(s)
- HD 70573 1 planet(s)
- HD 72892 1 planet(s)
- HD 109988 1 planet(s)
- HD 86065 1 planet(s)
- Filetdor 1 planet(s)
- TOI-2545 1 planet(s)
- HD 73583 2 planet(s)
- GJ 433 3 planet(s)
- HAT-P-69 1 planet(s)
- HIP 54597 1 planet(s)
- GJ 328 2 planet(s)
- TOI-4551 1 planet(s)
- TOI-603 1 planet(s)
- HAT-P-30 1 planet(s)
- WASP-180 A 1 planet(s)
- GJ 357 3 planet(s)
- WASP-84 2 planet(s)
- TOI-2669 1 planet(s)
- BD-14 3065 A 1 planet(s)
- TOI-564 1 planet(s)
- HAT-P-35 1 planet(s)
- WASP-149 1 planet(s)
- TOI-2992 1 planet(s)
- WASP-25 1 planet(s)
- TOI-4324 1 planet(s)
- GJ 3634 1 planet(s)
- WASP-193 1 planet(s)
- HATS-38 1 planet(s)
- HAT-P-42 1 planet(s)
- WASP-169 1 planet(s)
- TOI-620 1 planet(s)
- TOI-4914 1 planet(s)
- HATS-37 A 1 planet(s)
- NGTS-12 1 planet(s)
- TOI-3160 A 1 planet(s)
- WASP-36 1 planet(s)
- NGTS-9 1 planet(s)
- WASP-142 1 planet(s)
- WASP-175 1 planet(s)
- NGTS-35 1 planet(s)
- LTT 3780 2 planet(s)
- TOI-4559 1 planet(s)
- HATS-25 1 planet(s)
- HATS-31 1 planet(s)
- TOI-2981 1 planet(s)
- HATS-22 1 planet(s)
- TIC 290487717 1 planet(s)
- TOI-6450 1 planet(s)
- TOI-2989 1 planet(s)
- HATS-53 1 planet(s)
- HATS-18 1 planet(s)
- NGTS-18 1 planet(s)
- UCAC4 328-061594 1 planet(s)
- TOI-6478 1 planet(s)
- TOI-1883 1 planet(s)
- ZTF J1230-2655 1 planet(s)
Deep-sky objects
- PSR J1346-2610 Pulsar
- PSR B1010-23 (J1012-2337) Pulsar
- PSR B1039-19 (J1041-1942) Pulsar
- PSR B0906-17 (J0908-1739) Pulsar
- PSR B1016-16 (J1018-1642) Pulsar
- PSR J1018-1523 Pulsar
- PSR B0942-13 (J0944-1354) Pulsar
- PSR J0824+0028 Pulsar
- PSR B0820+02 (J0823+0159) Pulsar
- PSR B0834+06 (J0837+0610) Pulsar
- AM 4 Globular cluster
- M 68 (NGC 4590) Globular cluster
- NGC 5694 Globular cluster
- ESO 447-29 Star cluster
- ESO 502-19 Star cluster
- FSR 1304 Star cluster
- FSR 1280 Star cluster
- FSR 1251 Star cluster
- NGC 2548 Star cluster
- BIP 14 Star cluster
- K 1-22 Planetary nebula
- A 35 Planetary nebula
- NGC 3242 Planetary nebula
- NGC 2610 Planetary nebula
- A 34 Planetary nebula
- A 33 Planetary nebula
Galaxies
- Southern Pinwheel (M83) 15.0 million light-years
- ESO 379-007 17.0 million light-years
- HIPASS J1133-32 21.9 million light-years
- NGC 3621 21.9 million light-years
- HIPASS J1131-31 21.9 million light-years
- KK 218 15.0 million light-years
- NGC 5264 14.8 million light-years
- KK 208 15.3 million light-years
- UGCA 365 17.1 million light-years
- IC 4316 14.4 million light-years
- ESO 443-009 18.9 million light-years
- ESO 444-084 15.0 million light-years
- MCG -04-31-038 25.4 million light-years
- NGC 3037 26.4 million light-years
- ESO 499-038 49.9 million light-years
- NGC 3109 4.31 million light-years
- ESO 501-023 22.8 million light-years
- KK 73 32.0 million light-years
- NGC 2784 dw01 32.0 million light-years
- NGC 2784 32.0 million light-years
- KK 72 32.0 million light-years
- AM1320-230 15.0 million light-years
- HIPASS J0916-23b 33.6 million light-years
- LV J0944-2254 19.7 million light-years
- DDO 62 60.7 million light-years
- NGC 2835 33.6 million light-years
- ESO 565-003 24.5 million light-years
- UGCA 153 71.4 million light-years
- LV J0935-1348 23.8 million light-years
- KKSG19 16.7 million light-years
- KDG058 32.6 million light-years
- KKH 46 18.3 million light-years
- CGCG 35-007 42.4 million light-years
- IC 760 103.7 million light-years
- NGC 5626 321.0 million light-years
- NGC 4806 112.2 million light-years
- NGC 3483 165.5 million light-years
- IC 4290 224.7 million light-years
- IC 4243 552.5 million light-years
- NGC 3312 134.5 million light-years
- NGC 3308 165.6 million light-years
- IC 4255 475.0 million light-years
- IC 4252 634.3 million light-years
- IC 4374 304.5 million light-years
- NGC 3078 120.2 million light-years
- NGC 3393 174.7 million light-years
- IC 3927 224.9 million light-years
- NGC 3282 172.4 million light-years
- NGC 3464 174.1 million light-years
- NGC 2921 138.0 million light-years
- NGC 2920 154.1 million light-years
- NGC 3096 197.0 million light-years
- NGC 3091 184.7 million light-years
- NGC 3085 186.6 million light-years
- NGC 3028 188.6 million light-years
- NGC 2956 449.1 million light-years
- NGC 3420 279.5 million light-years
- NGC 3409 286.7 million light-years
- NGC 3058 348.0 million light-years
- NGC 3145 170.2 million light-years
- IC 2482 164.1 million light-years
- NGC 2889 155.5 million light-years
- NGC 2863 83.3 million light-years
- NGC 2574 133.5 million light-years
- NGC 2583 275.4 million light-years
- NGC 2817 164.7 million light-years
- NGC 2706 76.0 million light-years
- NGC 2951 NED01 224.1 million light-years
- NGC 2618 187.8 million light-years
- NGC 2555 205.6 million light-years
- NGC 2936 325.6 million light-years
- IC 2327 125.0 million light-years
- NGC 2723 180.2 million light-years
- NGC 2960 229.8 million light-years
- IC 504 193.9 million light-years
- NGC 2561 192.2 million light-years
- NGC 2644 90.3 million light-years
- NGC 2962 91.6 million light-years
Its other stars
- ο Hya
- HIP 46371
- HIP 47522
- 26 Hya
- 51 Hya
- 27 Hya
- 9 Hya
- HIP 48559
- HIP 51979
- HIP 52009
- φ³ Hya
- χ¹ Hya
- Gl 364
- HIP 56280
- Felis
- ψ Hya
- 52 Hya
- 6 Hya
- ω Hya
- Gl 355.2
- κ Hya
- 50 Hya
- 44 Hya
- HIP 57613
- HIP 56332
- 54 Hya
- HIP 57047
- 47 Hya
- Gl 403.1
- 56 Hya
- 23 Hya
- HIP 58082
- HIP 43142
- 14 Hya
- HIP 49809
- HIP 40107
- Gl 344A
- HIP 61621
- HIP 54477
- HIP 52737
- HIP 62131
- 20 Hya
- HIP 68581
- 24 Hya
- 15 Hya
- 33 Hya
- HIP 60735
- HIP 51364
- HIP 49569
- HIP 51491
- 2 Hya
- 19 Hya
- 28 Hya
- 1 Hya
- 55 Hya
- HIP 44356
- HIP 62500
- 59 Hya
- HIP 46511
- χ² Hya
- HIP 66065
- HIP 43026
- HIP 49339
- HIP 53699
- Gl 398.1
- HIP 56620
- 3 Hya
- HD 79181
- HIP 44923
- HIP 66400
- HIP 41299
- HIP 46813
- HIP 43798
- HIP 44936
- 57 Hya
- 48 Hya
- HIP 45743
- HIP 54561
- HIP 42028
- GJ 3523
- HIP 66563
- HIP 67143
- HIP 45559
- 60 Hya
- HIP 57841
- HIP 46618
- HIP 61720
- HIP 52841
- Gl 542.1A
- HIP 42008
- HIP 41080
- HIP 46897
- HIP 58158
- HIP 43899
- HIP 46859
- Gl 432A
- HIP 41597
- Gl 327
- HIP 46288
- HIP 50536
- φ² Hya
- HIP 41214
- HIP 40818
- HIP 51551
- HIP 52113
- HIP 67890
- HIP 53818
- 17 Hya
- HIP 44315
- HIP 48396
- HIP 43204
- HIP 60603
- 21 Hya
- HIP 51795
- HIP 69623
- HIP 46840
- HIP 48943
- HIP 40859
- HIP 43580
- HIP 46768
- HIP 46869
- HIP 50790
- 10 Hya
- HIP 43902
- HIP 46744
- HIP 41036
- HIP 45167
- HIP 46529
- HIP 62788
- HIP 68177
- HIP 56293
- HIP 44738
- HIP 59307
- HIP 57971
- HIP 40858
- HIP 42299
- HIP 44162
- HIP 67523
- HIP 58272
- HIP 53963
- HIP 67071
- HIP 43035
- HIP 48584
- HIP 50066
- HIP 59008
- HIP 69458
- HIP 49802
- HIP 52391
- HIP 46543
- HIP 46893
- HIP 49689
- HIP 46569
- HIP 46504
- HIP 48763
- HIP 73171
- HIP 51885
- HIP 45854
- HIP 49321
- HIP 40766
- 37 Hya
- HIP 63243
- HIP 45424
- HIP 56657
- HIP 47070
- HIP 43570
- HIP 45150
- HIP 59588
- HIP 59622
- HIP 42142
- HIP 54725
- HIP 69398
- HIP 69977
- HIP 50142
- HIP 42854
- HIP 47454
- HIP 41893
- HIP 60468
- 34 Hya
- HIP 65835
- HIP 42951
- HIP 41564
- HIP 43246
- HIP 58436
- HIP 68224
- HIP 41547
- HIP 43623
- HIP 54703
- HIP 62448
- Gl 530
- HIP 54030
- HIP 55164
- HIP 55953
- GJ 3680
- HIP 42981
- HIP 45543
- HIP 47242
- HIP 50013
- HIP 53387
- HIP 66060
- HIP 42701
- HIP 45305
- HIP 61172
- HIP 43850
- HIP 50728
- HIP 54430
- HIP 40263
- HIP 43152
- HIP 44888
- Gl 446
- HD 102888
- HIP 65969
- HIP 70538
- HIP 51852
- HIP 59021
- HIP 64375
- HIP 65682
- HIP 50693
- HIP 59742
- HD 96700
- 29 Hya
- HD 82943
- Gl 344B
- GJ 3544
- GJ 9273
- Gl 454.2A
- HD 90156
- Gl 453
- GJ 9336
- GJ 3648
- GJ 3687
- Gl 561.1B
- GJ 3535
- Gl 388.2
- Gl 348B
- Gl 349
- GJ 3507
- HD 94771
- HD 86264
- HD 75302
- HD 72659
- HD 86950
- HD 74156
- GJ 3615
- Gl 355
- Gl 339A
- GJ 9258
- HD 86226
- GJ 3594
- Gl 454.2B
- Gl 340.2
- HD 128356
- GJ 9340
- GJ 3538
- TOI-1203
- GJ 3581
- HD 70573
- Gl 511
- HD 72892
- HD 109988
- GJ 1164A
- GJ 9407
- Gl 340.3
- Gl 369
- Gl 412.3
- HD 86065
- GJ 3620
- Filetdor
- Gl 334
- GJ 1181A
- TOI-2545
- HD 73583
- GJ 9299
- GJ 1145
- GJ 433
- HAT-P-69
- HIP 54597
- Gl 316
- GJ 1164B
- Gl 383
- GJ 328
- Gl 352A
- GJ 2066
- TOI-4551
- GJ 9315
- TOI-603
- HAT-P-30
- Gl 346
- GJ 3608A
- WASP-180 A
- GJ 3543
- Gl 352B
- GJ 357
- WASP-84
- Gl 386
- Gl 401A
- Gl 510
- TOI-2669
- BD-14 3065 A
- TOI-564
- GJ 3501A
- GJ 3555
- GJ 3530
- GJ 1125
- Gl 563.2B
- HAT-P-35
- WASP-149
- GJ 3527
- TOI-2992
- WASP-25
- TOI-4324
- GJ 3634
- WASP-193
- HATS-38
- Gl 563.2A
- Gl 347A
- HAT-P-42
- GJ 3823
- WASP-169
- TOI-620
- TOI-4914
- HATS-37 A
- GJ 3502B
- Ross 687
- NGTS-12
- Gl 326A
- GJ 1129
- TOI-3160 A
- Ross 686
- GJ 2070
- Gl 326B
- WASP-36
- NGTS-9
- WASP-142
- GJ 3780
- WASP-175
- NGTS-35
- LTT 3780
- TOI-4559
- GJ 3609C
- HATS-25
- Gl 542.1B
- HATS-31
- GJ 3553
- TOI-2981
- HATS-22
- TIC 290487717
- GJ 3692
- GJ 3654
- TOI-6450
- TOI-2989
- HATS-53
- GJ 3513
- GJ 3561
- GJ 3702
- GJ 3791
- HATS-18
- NGTS-18
- GJ 3819
- GJ 3503
- Gl 347B
- Gl 432B
- UCAC4 328-061594
- GJ 3816
- TOI-6478
- TOI-1883
- GJ 3614
- Gl 401B
- GJ 3877
- GJ 3504
- 2MASSI J0835425-081923
- GJ 3517
- ZTF J1230-2655
- 2MASS J08194351-0450071
- SSSPM J0829-1309
- 2MASS J09211410-2104446
- DENIS J1019245-270717
- DENIS-P J090957.1-065806
- 2MASSW J1326201-272937
- 2MASS J11544223-3400390
- 2MASS J08355829+0548308
- SIMP J09155650+0514212
- SDSS J084610.73+030837.5
- 2MASSI J0847287-153237
- PSO J159.0433-27.6357
- PSO J136.5494-06.1944
- DENIS J1004403-131818
- WISEA J085633.87-181546.6
- SDSS J093242.84+042215.2
- DENIS-P J104731.1-181558
- 2MASSW J0928397-160312
- SIMP J10035482-1441534
- SDSS J083646.35+052642.6
- SDSS J093858.88+044343.9
- 2MASS J08254335-0029110
- 2MASS J11001126-2718386
- SDSS J093600.12+043147.9
- Kelu-1
- SIMP J09514402-1343474
- 2MASS J12070374-3151298
- SDSS J092300.89+052801.5
- SIMP J10391406-1904471
- SDSS J084751.48+013811.0
- PSO J149.0341-14.7857
- 2MASSW J0832045-012835
- SIMP J10135847-1946546
- SIMP J09213274-1534290
- 2MASSI J1315309-264951
- 2MASS J12563961-2718455
- PSO J149.1907-19.1730
- SDSS J090347.55+011446.0
- PSO J143.8+001.7
- PSO J182.6569-26.6197
- SDSS J084149.77+005844.6
- PSO J218.5616-27.8952
- 2MASS J11220826-3512363
- SDSS J093109.56+032732.5
- SDSS J090509.00+043819.9
- PSO J213.3-027.3
- 2MASS J09153413+0422045
- 2MASS J10212570-2830427
- WISEPA J081958.05-033529.0
- 2MASS J12255432-2739466
- ULAS J093512.60+012347.4
- ULAS J082428.08+055742.5
- ULAS J085559.77+003048.3
- ULAS J091740.85+004254.0
- ULAS J092646.81-015150.0
- ULAS J084302.02+001246.9
- ULAS J085311.68+032147.7
- 2MASS J11145133-2618235
- PSO J127.5648-11.1861
- ULAS J090710.26-022145.7
- ULAS J092432.13+005835.6
- PSO J180.1475-28.6160
- ULAS J092659.46-005611.1
- WISEA J084254.56-061023.7
- ULAS J083258.66+011241.9
- PSO J133.8016-02.5658
- ULAS J093129.56-020902.8
- 2MASS J09490860-1545485
- 2MASS J12154432-3420591
- ULAS J084710.35+020413.3
- SDSS J083048.80+012831.1
- WISE J122152.28-313600.8
- PSO J136.5380-14.3267
- PSO J160.0416-21.3281
- SIMP J10390264-2829293
- PSO J159.2399-26.3885
- ULAS J091544.13+053104.1
- WISEPA J132233.66-234017.1
- SDSSp J083717.22-000018.3
- PSO J168.1800-27.2264
- WISE J105257.95-194250.2
- ULAS J082707.67-020408.2
- WISEPC J092906.77+040957.9
- WISE J103907.73-160002.9
- WISE J094020.10-220820.5
- VIK J091641.18-010911.5
- ULAS J083408.92+040728.7
- WISEPC J101808.05-244557.7
- ULAS J090116.23-030635.0
- WISE J113949.24-332425.1
- ULAS J093951.04+001653.6
- ULAS J083346.88+001248.0
- ULAS J082327.46+002424.4
- ULAS J084743.93+035040.2
- ULAS J083756.19-004156.0
- ULAS J093829.28-001112.6
- ULAS J092608.82+040239.7
- ULAS J085342.94+000651.8
- ULAS J091804.71+043949.6
- ULAS J092608.93+020807.3
- ULAS J085139.03+005340.9
- WISE J105130.01-213859.7
- ULAS J091309.55-003136.9
- WISE J144806.48-253420.3
- WISE J114156.71-332635.8
- WISP 130525.51-253828.8
- WISE J085510.83-071442.5