# List of stars in Triangulum Australe

This is the list of notable stars in the constellation Triangulum Australe, sorted by decreasing brightness.
| Name | B | Var | HD | HIP | RA | Dec | vis. mag. | abs. mag. | Dist. (ly) | Sp. class | Notes |
| α TrA | α | | 150798 | 82273 | 16$^h$ 48$^m$ 39.87$^s$ | −69° 01′ 39.5″ | 1.91 | −3.62 | 391 | K2IIb-IIIa | Atria, possible binary star |
| β TrA | β | | 141891 | 77952 | 15$^h$ 55$^m$ 08.81$^s$ | −63° 25′ 47.1″ | 2.83 | 2.38 | 40 | F1 V | |
| γ TrA | γ | | 135382 | 74946 | 15$^h$ 18$^m$ 54.69$^s$ | −68° 40′ 46.1″ | 2.87 | −0.87 | 183 | A1V | |
| δ TrA | δ | | 145544 | 79664 | 16$^h$ 15$^m$ 26.27$^s$ | −63° 41′ 08.3″ | 3.86 | −2.54 | 621 | G5II | |
| ε TrA | ε | | 138538 | 76440 | 15$^h$ 36$^m$ 43.19$^s$ | −66° 19′ 00.9″ | 4.11 | 0.00 | 216 | K0III | |
| ζ TrA | ζ | | 147584 | 80686 | 16$^h$ 28$^m$ 27.80$^s$ | −70° 05′ 04.8″ | 4.90 | 4.49 | 39 | F9V | |
| LP TrA | | LP | 150549 | 82129 | 16$^h$ 46$^m$ 40.01$^s$ | −67° 06′ 34.8″ | 5.10 | −1.32 | 626 | A0II-IIIp | α² CVn variable, ΔV = 0.033$^m$, P = 3.76 d |
| κ TrA | κ | | 141767 | 77982 | 15$^h$ 55$^m$ 29.61$^s$ | −68° 36′ 10.8″ | 5.11 | −4.70 | 2991 | G6IIa | semiregular variable, V$_{max}$ = 5.08$^m$, V$_{min}$ = 5.11$^m$, P = 600 d |
| HD 148291 | | | 148291 | 80874 | 16$^h$ 30$^m$ 49.37$^s$ | −61° 38′ 00.5″ | 5.19 | −1.37 | 669 | K0II/IIICN. | |
| ι TrA | ι | | 147787 | 80645 | 16$^h$ 27$^m$ 57.27$^s$ | −64° 03′ 28.8″ | 5.28 | 2.25 | 132 | F4IV | γ Dor variable, triple star |
| θ TrA | θ | | 148890 | 81252 | 16$^h$ 35$^m$ 44.77$^s$ | −65° 29′ 43.2″ | 5.50 | 0.49 | 328 | G8/K0III | |
| HD 140483 | | | 140483 | 77390 | 15$^h$ 47$^m$ 53.10$^s$ | −65° 26′ 31.9″ | 5.54 | 0.06 | 406 | A5 | |
| LX TrA | | LX | 137066 | 75665 | 15$^h$ 27$^m$ 33.10$^s$ | −64° 31′ 53.2″ | 5.71 | −0.88 | 679 | K5/M0III | semiregular variable |
| HD 142514 | | | 142514 | 78279 | 15$^h$ 58$^m$ 58.16$^s$ | −65° 02′ 15.2″ | 5.74 | −1.08 | 753 | B7III | |
| X TrA | | X | 134453 | 74582 | 15$^h$ 14$^m$ 19.17$^s$ | −70° 04′ 46.0″ | 5.75 | −2.56 | 1495 | C5.5 | semiregular variable, V$_{max}$ = 5.03$^m$, V$_{min}$ = 6.05$^m$, P = 361.1 d |
| HD 133683 | | | 133683 | 74184 | 15$^h$ 09$^m$ 29.92$^s$ | −67° 05′ 02.9″ | 5.76 | −5.58 | 6037 | F8Iab-Ib | |
| HD 142139 | | | 142139 | 78045 | 15$^h$ 56$^m$ 05.96$^s$ | −60° 28′ 56.3″ | 5.76 | 1.66 | 215 | A3V | |
| MX TrA | | MX | 152564 | 83150 | 16$^h$ 59$^m$ 33.98$^s$ | −69° 16′ 05.3″ | 5.79 | −1.60 | 982 | Ap Si | α² CVn variable |
| HD 136672 | | | 136672 | 75565 | 15$^h$ 26$^m$ 14.53$^s$ | −68° 18′ 33.1″ | 5.89 | 0.84 | 334 | K0III | |
| η$^1$ TrA | η$^1$ | | 149671 | 81710 | 16$^h$ 41$^m$ 23.13$^s$ | −68° 17′ 45.9″ | 5.89 | −0.73 | 688 | B7IV | |
| HD 145689 | | | 145689 | 79797 | 16$^h$ 17$^m$ 05.48$^s$ | −67° 56′ 27.9″ | 5.95 | 2.24 | 180 | A4V | suspected variable |
| HD 150026 | | | 150026 | 81873 | 16$^h$ 43$^m$ 22.11$^s$ | −67° 25′ 56.3″ | 6.02 | 1.17 | 305 | A0Vn | suspected variable |
| HD 151441 | | | 151441 | 82517 | 16$^h$ 51$^m$ 53.88$^s$ | −65° 22′ 31.5″ | 6.12 | −1.20 | 948 | B8II/III | |
| HD 141913 | | | 141913 | 77927 | 15$^h$ 54$^m$ 52.64$^s$ | −60° 44′ 37.1″ | 6.14 | −2.45 | 1707 | B9II | suspected variable, V$_{max}$ = 6.11$^m$, V$_{min}$ = 6.15$^m$ |
| HD 147349 | | | 147349 | 80455 | 16$^h$ 25$^m$ 22.15$^s$ | −63° 07′ 30.9″ | 6.14 | 0.55 | 428 | A1V | |
| HD 133456 | | | 133456 | 74047 | 15$^h$ 07$^m$ 56.75$^s$ | −65° 16′ 31.6″ | 6.18 | −0.75 | 793 | K3III | 34 G. Cir |
| HD 141585 | | | 141585 | 77817 | 15$^h$ 53$^m$ 22.94$^s$ | −62° 36′ 23.6″ | 6.22 | −0.19 | 623 | K3III | suspected variable, V$_{max}$ = 6.18$^m$, V$_{min}$ = 6.21$^m$ |
| HD 150097 | | | 150097 | 81823 | 16$^h$ 42$^m$ 48.42$^s$ | −62° 33′ 14.1″ | 6.23 | −2.04 | 1468 | K3III | |
| HD 143238 | | | 143238 | 78603 | 16$^h$ 02$^m$ 52.53$^s$ | −62° 32′ 29.5″ | 6.25 | 1.17 | 339 | B9.5V | |
| HD 135737 | | | 135737 | 75091 | 15$^h$ 20$^m$ 40.56$^s$ | −67° 28′ 53.4″ | 6.27 | −1.66 | 1254 | B3V | suspected variable |
| HD 151404 | | | 151404 | 82539 | 16$^h$ 52$^m$ 17.78$^s$ | −67° 40′ 53.4″ | 6.33 | 1.01 | 377 | K2III | |
| R TrA | | R | 135592 | 75018 | 15$^h$ 19$^m$ 45.71$^s$ | −66° 29′ 45.7″ | 6.39 | | 3500 | F7Ib/II | Cepheid variable, V$_{max}$ = 6.33$^m$, V$_{min}$ = 7$^m$, P = 3.389287 d |
| S TrA | | S | 142941 | 78476 | 16$^h$ 01$^m$ 10.72$^s$ | −63° 46′ 35.5″ | 6.42 | −2.57 | 2050 | F8II | Cepheid variable, V$_{max}$ = 5.95$^m$, V$_{min}$ = 6.81$^m$, P = 6.32344 d |
| HD 138965 | | | 138965 | 76736 | 15$^h$ 40$^m$ 11.63$^s$ | −70° 13′ 39.9″ | 6.45 | 2.01 | 252 | A5V | |
| HD 153389 | | | 153389 | 83556 | 17$^h$ 04$^m$ 33.70$^s$ | −68° 16′ 43.1″ | 6.47 | −1.46 | 1254 | M3/M4III | suspected irregular variable |
| HD 144481 | | | 144481 | 79208 | 16$^h$ 09$^m$ 59.19$^s$ | −62° 58′ 01.2″ | 6.50 | 1.41 | 340 | A3m... | |
| U TrA | | U | 143999 | 78978 | 16$^h$ 07$^m$ 09.01$^s$ | −62° 54′ 38.0″ | 7.89 | | 3130 | F8Ib/II | Cepheid variable, V$_{max}$ = 7.3$^m$, V$_{min}$ = 8.29$^m$, P = 2.568423 d |
| HD 147018 | | | 147018 | 80250 | 16$^h$ 23$^m$ 00.15$^s$ | −61° 41′ 19.5″ | 8.37 | 5.22 | 139 | G9V | has two planets (b & c) |
| RT TrA | | RT | | 81157 | 16$^h$ 34$^m$ 30.89$^s$ | −63° 08′ 00.8″ | 9.70 | | 2590 | G2Ib-II: | W Virginis variable, V$_{max}$ = 9.43$^m$, V$_{min}$ = 10.18$^m$, P = 1.9461124 d |
| WR 71 | | LT | 143414 | 78689 | 16$^h$ 03$^m$ 49.34$^s$ | −62° 41′ 36.0″ | 10.10 | | 2940 | WN6w | Wolf–Rayet star, ΔV = 0.13$^m$ |
| EK TrA | | EK | | | 15$^h$ 14$^m$ 01.47$^s$ | −65° 05′ 32.1″ | 10.40 | | | | SU Ursae Majoris variable, V$_{max}$ = 10.4$^m$, V$_{min}$ = <15.0$^m$, P = 0.06288 d |
| HD 141969 | | MM | 141969 | 78034 | 15$^h$ 56$^m$ 01.69$^s$ | −66° 09′ 09.2″ | 11.00 | | 3500 | BC0Ibe | central star of planetary nebula He 2-138 |
| KX TrA | | KX | | | 16$^h$ 44$^m$ 35.47$^s$ | −62° 37′ 14.08″ | 11.38 | | | M6 | Z Andromedae variable |
| 4U 1626-67 | | KZ | | | 16$^h$ 32$^m$ 16.8$^s$ | −67° 27′ 43″ | 18.50 | | | | Low-mass X-ray binary, V$_{max}$ = 18.23$^m$, V$_{min}$ = 19$^m$ |
| X1556-605 | | LU | | | 16$^h$ 01$^m$ 02.3$^s$ | −60° 44′ 18″ | 18.60 | | | | Low-mass X-ray binary, V$_{max}$ = 18.6$^m$, V$_{min}$ = 19.2$^m$, P = 0.46229 d |
| TrA X-1 | | KY | | | 15$^h$ 28$^m$ 17.2$^s$ | −61° 52′ 58″ | | | | | Low-mass X-ray binary |
| WISE 1639-6847 | | | | | 16$^h$ 39$^m$ 40.83$^s$ | −68° 47′ 38.6″ | | | 16 | Y | brown dwarf |
| Table legend:  • Name = Proper name  • B = Bayer designation  • F or/and G. = Flamsteed designation or Gould designation  • Var = Variable star designation  • HD = Henry Draper Catalogue designation number  • HIP = Hipparcos Catalogue designation number  • RA = Right ascension for the Epoch/Equinox J2000.0  • Dec = Declination for the Epoch/Equinox J2000.0  • vis. mag. = visual magnitude (m or m$_v$), also known as apparent magnitude  • abs. mag. = absolute magnitude (M$_v$)  • Dist. (ly) = Distance in light-years from Earth  • Sp. class = Spectral class of the star in the stellar classification system  • Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] ||||||||||||