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 1.91 −3.62 391 K2IIb-IIIa Atria, possible binary star β TrA β 141891 77952 2.83 2.38 40 F1 V γ TrA γ 135382 74946 2.87 −0.87 183 A1V δ TrA δ 145544 79664 3.86 −2.54 621 G5II ε TrA ε 138538 76440 4.11 0.00 216 K0III ζ TrA ζ 147584 80686 4.90 4.49 39 F9V LP TrA LP 150549 82129 5.10 −1.32 626 A0II-IIIp α² CVn variable, κ TrA κ 141767 77982 5.11 −4.70 2991 G6IIa semiregular variable, HD 148291 148291 80874 5.19 −1.37 669 K0II/IIICN. ι TrA ι 147787 80645 5.28 2.25 132 F4IV γ Dor variable, triple star θ TrA θ 148890 81252 5.50 0.49 328 G8/K0III HD 140483 140483 77390 5.54 0.06 406 A5 LX TrA LX 137066 75665 5.71 −0.88 679 K5/M0III semiregular variable HD 142514 λ 142514 78279 5.74 −1.08 753 B7III X TrA X 134453 74582 5.75 −2.56 1495 C5.5 semiregular variable, HD 133683 133683 74184 5.76 −5.58 6037 F8Iab-Ib HD 142139 142139 78045 5.76 1.66 215 A3V MX TrA MX 152564 83150 5.79 −1.60 982 Ap Si α² CVn variable HD 136672 136672 75565 5.89 0.84 334 K0III η1 TrA η1 149671 81710 5.89 −0.73 688 B7IV HD 145689 145689 79797 5.95 2.24 180 A4V suspected variable HD 150026 150026 81873 6.02 1.17 305 A0Vn suspected variable HD 151441 151441 82517 6.12 −1.20 948 B8II/III HD 141913 141913 77927 6.14 −2.45 1707 B9II suspected variable, HD 147349 147349 80455 6.14 0.55 428 A1V HD 133456 133456 74047 6.18 −0.75 793 K3III 34 G. Cir HD 141585 141585 77817 6.22 −0.19 623 K3III suspected variable, HD 150097 150097 81823 6.23 −2.04 1468 K3III HD 143238 143238 78603 6.25 1.17 339 B9.5V HD 135737 135737 75091 6.27 −1.66 1254 B3V suspected variable HD 151404 151404 82539 6.33 1.01 377 K2III R TrA R 135592 75018 6.39 3500 F7Ib/II Cepheid variable, S TrA S 142941 78476 6.42 −2.57 2050 F8II Cepheid variable, HD 138965 138965 76736 6.45 2.01 252 A5V HD 153389 153389 83556 6.47 −1.46 1254 M3/M4III suspected irregular variable HD 144481 144481 79208 6.50 1.41 340 A3m... U TrA U 143999 78978 7.89 3130 F8Ib/II Cepheid variable, HD 147018 147018 80250 8.37 5.22 139 G9V has two planets (b & c) RT TrA RT 81157 9.70 2590 G2Ib-II: W Virginis variable, WR 71 LT 143414 78689 10.10 2940 WN6w Wolf–Rayet star, EK TrA EK 10.40 SU Ursae Majoris variable, HD 141969 MM 141969 78034 11.00 3500 BC0Ibe central star of planetary nebula He 2-138 KX TrA KX 11.38 M6 Z Andromedae variable 4U 1626-67 KZ 18.50 Low-mass X-ray binary, X1556-605 LU 18.60 Low-mass X-ray binary, TrA X-1 KY Low-mass X-ray binary WISE 1639-6847 16 Y brown dwarf

Notes

See also List of stars by constellation

References