Hydra (Hya)
Here is a listing of 107 double stars in Hydra. Doubles which have stars that show colour are marked in shaded rows. The names of the stars contains a link to the Simbad entry for it, containing more information.
| Name | Sep | PA | Mag1 | Mag2 | RA | Dec | Spect | Comments |
|---|---|---|---|---|---|---|---|---|
| BU 1244 | 0.9 | 26 | 8.0 | 8.0 | 08:13.8 | +01:58 | A0 | |
| STF 1210 | 15.5 | 113 | 7.0 | 9.5 | 08:15.8 | +02:47 | A0 | |
| HWE 21 | 1.4 | 241 | 7.5 | 11.0 | 08:16.5 | -03:13 | F8 | |
| BU 102 | 3.3 | 120 | 7.0 | 10.5 | 08:16.8 | -09:01 | A0 | |
| RST 5297 | 39.0 | 84 | 7.5 | 10.5 | 08:26.3 | -00:24 | G5 | |
| STF 1243 | 2.0 | 228 | 8.0 | 10.5 | 08:33.9 | +01:34 | A0 | |
| HJ 99 | 61.0 | 202 | 6.5 | 7.5 | 08:37.9 | -06:48 | A0 | optical double. B is also a double sep 9.8, PA 211 mat 7.5/12 |
| STF 1255 | 26.6 | 31 | 7.0 | 8.0 | 08:39.7 | +05:46 | G5 | |
| STF 1260 | 5.1 | 304 | 7.5 | 8.0 | 08:40.7 | -12:10 | A2 | |
| 9 HYA | 31.0 | 111 | 5.0 | 11.5 | 08:41.7 | -15:56 | K1 | |
| STF 1270 | 4.7 | 262 | 6.5 | 7.5 | 08:45.3 | -02:35 | F5 | |
| STF 1069 | 2.4 | 68 | 7.5 | 11.0 | 08:46.1 | -11:01 | K5 | |
| EPS HYA | 3.1 | 271 | 3.5 | 8.0 | 08:46.9 | +06:24 | G5 | primary is a close binary sep 0.3, mag 5 |
| STT 194 | 12.6 | 56 | 7.0 | 10.5 | 08:48.3 | +00:32 | K2 | |
| RHO HYA | 12.4 | 145 | 4.5 | 12.0 | 08:48.4 | +05:49 | A4 | |
| HJ 107 | 27.3 | 52 | 7.5 | 11.0 | 08:50.4 | -04:11 | K0 | |
| 15 HYA | 0.9 | 125 | 6.0 | 9.0 | 08:51.6 | -07:10 | A2 | third component sep 45.9, pa 0 mag 10. Fourth component sep 51.9, pa 54 mag 11 |
| STF 1290 | 3.0 | 320 | 8.0 | 10.0 | 08:52.0 | +04:27 | A2 | |
| STF 1292 | 6.5 | 188 | 9.0 | 9.0 | 08:53.8 | -00:34 | A5 | |
| 17 HYA | 4.3 | 359 | 7.0 | 7.0 | 08:55.5 | -07:58 | A3/A5 | |
| HO 358 | 1.9 | 298 | 7.0 | 12.0 | 08:57.9 | -18:52 | A0 | |
| KUI 36 | 2.5 | 197 | 6.5 | 12.0 | 08:58.2 | +01:32 | A0 | |
| BU 409 | 9.7 | 185 | 8.0 | 10.5 | 09:00.7 | -09:11 | A0 | |
| STF 1302 | 2.4 | 232 | 8.5 | 9.0 | 09:01.2 | +02:44 | F8 | |
| STF 1308 | 10.5 | 85 | 8.0 | 9.0 | 09:05.0 | -03:59 | F5 | |
| STF 1309 | 11.5 | 273 | 8.0 | 8.5 | 09:06.6 | +02:48 | F5 | |
| HJ 804 | 12.8 | 329 | 8.0 | 11.0 | 09:07.7 | -10:29 | A0 | |
| STF 1316 | 7.1 | 138 | 8.0 | 11.5 | 09:07.9 | -07:08 | AB | |
| 19 HYA | 1.5 | 296 | 5.5 | 10.0 | 09:08.7 | -08:35 | B9 | |
| STT 197 | 1.4 | 62 | 7.5 | 9.0 | 09:09.5 | +02:56 | F0 | |
| HJ 4182 | 25.2 | 107 | 7.0 | 10.5 | 09:10.1 | -16:51 | F0 | |
| BU 104 | 2.5 | 103 | 7.0 | 12.0 | 09:11.5 | +00:17 | K0 | |
| BU 336 | 2.0 | 238 | 8.5 | 9.5 | 09:11.7 | -16:48 | A0 | |
| A 2973 | 2.6 | 7 | 7.5 | 12.5 | 09:12.5 | -06:55 | K0 | |
| THETA HYA | 29.4 | 197 | 4.0 | 10.0 | 09:14.4 | +02:19 | B9 | |
| WEI 21 | 25.8 | 14 | 7.5 | 9.0 | 09:14.8 | -08:45 | A0 | |
| HO 363 | 2.4 | 181 | 7.0 | 9.0 | 09:15.0 | -20:07 | A0 | |
| STF 1329 | 14.5 | 253 | 8.5 | 8.5 | 09:15.7 | -01:14 | G5 | |
| BU 212 | 1.3 | 209 | 7.5 | 8.0 | 09:16.1 | -08:20 | A5 | |
| BU 588 | 2.2 | 142 | 6.5 | 11.0 | 09:16.7 | +00:43 | F5 | |
| 23 HYA | 1.6 | 282 | 5.0 | 11.0 | 09:16.7 | -06:21 | K0 | |
| A 125 | 2.9 | 29 | 7.5 | 11.0 | 09:18.7 | -10:24 | A2 | |
| A 1343 | 4.1 | 190 | 6.0 | 11.0 | 09:19.6 | -15:49 | K0 | |
| STF 1343 | 9.8 | 272 | 8.5 | 9.0 | 09:20.0 | +05:00 | G5 | |
| HW 6 | 1.5 | 45 | 8.0 | 9.5 | 09:20.3 | -23:28 | F0 | |
| 27 HYA | 229.0 | 211 | 5.0 | 7.0 | 09:20.4 | -09:32 | G8/F5 | |
| 27B HYA | 9.6 | 196 | 7.0 | 9.0 | 09:20.4 | -09:32 | F5/K2 | |
| BU 337 | 8.3 | 334 | 7.0 | 11.0 | 09:22.5 | -17:53 | F2 | |
| A 1342 | 1.8 | 204 | 7.0 | 11.5 | 09:22.8 | -09:49 | A2 | Primary is a close binary sep 0.1 period 15 years |
| STF 1347 | 21.1 | 311 | 6.5 | 8.0 | 09:23.3 | +03:30 | F0 | |
| HD 123 | 4.4 | 5 | 7.5 | 10.0 | 09:23.9 | -23:39 | F2 | Eclipsing Binary system third component sep 54.4 pa 191 mag 10.5 |
| STF 1348 | 1.7 | 317 | 7.5 | 7.5 | 09:24.4 | +06:21 | F5 | |
| STF 1355 | 2.6 | 345 | 7.0 | 7.0 | 09:27.3 | +06:13 | F5 | |
| 29 HYA | 10.8 | 174 | 7.0 | 11.5 | 09:27.3 | -09:13 | A0 | Primary is a binary sep 0.2 mags 7/7 |
| STF 1357 | 7.4 | 54 | 7.0 | 10.5 | 09:28.2 | -06:59 | K0 | |
| BU 591 | 0.8 | 26 | 7.5 | 8.5 | 09:29.6 | -03:07 | F3/A3 | |
| BU 339 | 1.3 | 236 | 9.0 | 9.5 | 09:31.0 | -15:44 | G0 | |
| STF 1365 | 3.4 | 156 | 7.0 | 8.0 | 09:31.6 | +01:27 | F8 | |
| STF 1367 | 5.4 | 183 | 8.0 | 9.5 | 09:32.2 | -10:50 | G0 | |
| BU 910 | 6.8 | 305 | 7.5 | 10.0 | 09:32.9 | -14:00 | G5 | third component sep 166 pa 278 mag 9 |
| S 604 | 51.5 | 91 | 6.0 | 9.5 | 09:35.7 | -19:34 | A1 | |
| STN 19 | 2.7 | 266 | 7.5 | 9.5 | 09:40.1 | -17:09 | F2 | |
| SAO 177863 | 54.4 | 292 | 5.0 | 8.0 | 09:41.3 | -23:35 | B2 | |
| BU 214 | 3.2 | 250 | 7.0 | 11.0 | 09:41.6 | -18:28 | F8 | |
| HJ 4261 | 8.2 | 84 | 8.0 | 10.0 | 09:53.6 | -19:29 | G5 | |
| BU 592 | 9.9 | 192 | 6.5 | 12.0 | 09:55.0 | -16:11 | G0 | |
| BU 216 | 3.4 | 156 | 6.0 | 11.0 | 09:56.8 | -26:33 | A2 | |
| HDO 124 | 13.2 | 8 | 8.0 | 10.0 | 10:01.2 | -22:45 | A0 | |
| BU 1072 | 11.9 | 48 | 6.0 | 12.0 | 10:04.1 | -18:05 | A0 | third component sep 21.0, pa 274 mag 7 |
| S 607 | 9.5 | 146 | 8.5 | 9.5 | 10:06.7 | -19:18 | G5 | galaxy NGC 3124 is 4' North |
| HJ 4285 | 8.7 | 358 | 8.0 | 10.5 | 10:06.7 | -23:08 | F5 | |
| BU 217 | 1.9 | 121 | 8.0 | 8.0 | 10:06.8 | -24:42 | F8 | |
| BU 911 | 4.6 | 312 | 7.5 | 11.0 | 10:08.4 | -19:44 | G0 | Optical double, third component sep 66.4 pa 62 mag 9.5 |
| STF 1416 | 11.5 | 277 | 6.5 | 8.5 | 10:12.3 | -16:04 | A2 | |
| SAO 178610 | 1.3 | 110 | 6.0 | 10.0 | 10:16.8 | -20:40 | F0 | |
| BU 219 | 1.9 | 187 | 7.5 | 9.0 | 10:21.6 | -22:32 | A0 | |
| HJ 4311 | 4.2 | 122 | 7.5 | 10.5 | 10:23.4 | -13:22 | F8 | |
| BU 1075 | 3.3 | 280 | 6.0 | 12.0 | 10:36.1 | -16:20 | M1 | |
| BU 411 | 0.7 | 338 | 6.5 | 8.0 | 10:36.1 | -26:40 | F6 | |
| STF 1474 | 69.4 | 25 | 7.0 | 8.0 | 10:47.7 | -15:15 | A0 | Component B is also a double with seperation of 6.7, pa 25 mag 7.5/7.5 |
| STF 1473 | 30.7 | 10 | 8.0 | 8.5 | 10:47.7 | -15:35 | F8 | |
| I 503 | 1.2 | 115 | 7.5 | 9.0 | 10:49.3 | -26:48 | F2 | |
| I 211 | 1.9 | 207 | 5.5 | 9.5 | 10:59.3 | -33:44 | A8 | |
| HJ 4412 | 12.7 | 266 | 8.0 | 8.5 | 11:10.0 | -29:36 | A0 | |
| HD 100286 | 9.1 | 210 | 6.0 | 6.0 | 11:32.3 | -29:15 | F6 | |
| HJ 4465 | 67.0 | 44 | 5.5 | 7.5 | 11:41.7 | -32:29 | K5/F7 | |
| BETA HYA | 0.9 | 8 | 4.5 | 5.0 | 11:52.9 | -33:54 | A0 | |
| DUN 116 | 19.6 | 263 | 7.0 | 7.0 | 11:56.7 | -32:15 | G6 | Third component sep 24.3 pa 333 mag 11.5 |
| HJ 4495 | 6.6 | 317 | 6.5 | 9.0 | 12:06.1 | -32:57 | G0 | |
| JC 17 | 3.4 | 20 | 6.5 | 8.5 | 12:10.1 | -34:42 | A0 | |
| HJ 4505 | 10.2 | 271 | 7.5 | 10.5 | 12:11.7 | -30:35 | K0 | |
| HWE 72 | 1.3 | 164 | 6.5 | 8.5 | 12:13.6 | -33:47 | B9 | |
| HJ 4513 | 47.0 | 99 | 7.5 | 10.0 | 12:19.0 | -33:15 | K0 | |
| HJ 4528 | 26.8 | 145 | 7.0 | 11.5 | 12:34.2 | -32:05 | A5 | |
| SAO 180965 | 1.3 | 170 | 5.5 | 12.0 | 12:37.7 | -27:08 | F2 | Small globular cluster near |
| ES 439 | 2.1 | 64 | 9.0 | 9.5 | 12:51.7 | -28:16 | F5 | |
| STN 26 | 3.0 | 33 | 7.5 | 9.5 | 12:53.9 | -29:18 | G5 | |
| HJ 3556 | 6.0 | 82 | 8.0 | 9.0 | 12:54.3 | -27:57 | G0 | |
| HWE 27 | 2.7 | 293 | 7.5 | 9.0 | 13:13.0 | -29:05 | A0 | |
| HU 1503 | 1.2 | 192 | 7.0 | 10.5 | 13:21.4 | -22:47 | F5 | |
| SAO 181790 | 10.9 | 192 | 5.0 | 7.0 | 13:36.8 | -26:29 | A3/A5 | |
| HJ 4606 | 31.3 | 352 | 7.0 | 9.0 | 13:41.6 | -23:27 | A0 | |
| HJ 4617 | 4.9 | 261 | 8.0 | 9.5 | 13:50.8 | -29:52 | G5 | |
| BU 806 | 0.7 | 97 | 7.5 | 9.5 | 14:40.4 | -26:15 | A2 | Near Globular Cluster NGC 5694 |
| BU 345 | 0.9 | 292 | 7.0 | 7.5 | 14:41.8 | -29:41 | F0 | |
| 54 HYA | 8.8 | 126 | 5.0 | 7.0 | 14:46.0 | -25:26 | F1 | |
| 59 HYA | 0.8 | 335 | 6.0 | 6.0 | 14:58.7 | -27:38 | A5 |