Étoiles de type spectral S
S-type stars are cool giants which show evidence of bands of ZrO in
their spectra (4641A, 4620A, 5304A, 5379A, 5551A). The TiO bands are
also visibles and some time, strong hydrogen emission lines due to
shock waves in pulsating atmosphere. This stars are often variables
of many type. The Mira-type is the major population.
A list of bright S stars:
HD Name R.A.
Dec. Mv Spec.
224960 W Cet 00 02 07.4
-14 40 30 7.1 S5-7/1.5-3e
4350 U Cas 00 46 21.4 +48 14 42 8.0 S5/3e
4489 RW And 00 47 18.9 +32 41 19 7.9 S6/2e
4895 RR And 00 51 23.5 +34 22 39 8.4 S6/3e
5840 V365 Cas 01 00 53.1 +56 36 46 8.0 S6/3
7351 01 14 04.4 +28 31 48 6.6 S3/2
7769 S Cas 01 19 42.1 +72 36 41 7.9 S4,6e
14028 W And 02 17 33.0 +44 18 20 6.7 S7/1e
22649 BD Cam 03 42 09.4 +63 13 25 5.1 S4/2
29147 T Cam 04 40 08.8 +66 08 48 7.3 S6/5e
29704 04 39 23.6 -30 27 13 8.5 S:
30959 Omi 1 Ori 04 52 31.5 +14 15 05 5.2 S3/1
RZ Lep 05 18 46.0 -22 12 39 8.3 S4/4
35155 V1261 Ori 05 22 18.4 -08 40 04 7.0 S4,1
37536 NO Aur 05 40 41.9 +31 55 17 6.7 M2S
40101 05 55 35.4 -28 57 04 7.8 S
49368 06 48 22.8 +05 32 35 8.5 S3/2
51610 R Lyn 07 01 17.9 +55 20 02 7.2 S5/5e
53791 R Gem 07 07 21.1 +22 42 17 6.0 S5/5
56567 RR Mon 07 17 32.0 +01 05 40 8.4 M7Se:
61913 07 42 03.4 +14 12 59 5.8 M3S
63334 T Gem 07 49 18.2 +23 44 02 8.0 S4/4e
63733 07 49 45.8 -19 00 21 8.5 S4/3
64332 NQ Pup 07 53 05.3 -11 37 31 7.6 S5/2
70276 V Cnc 08 21 42.8 +17 17 03 7.5 S3/6e
96360 11 07 52.5 +68 21 59 8.4 M3
97393 BI Hya 11 12 13.1 -32 25 37 6.5 S
110813 U Ma 12 43 56.2 +61 05 35 7.4 S3/6e
127226 R Cam 14 17 50.9 +83 49 57 7.9 S4/4e
RT Sco 17 03 31.2 -36 55 14 7.0 S7,2
170970 V463 Lyr 18 30 36.3 +36 15 12 7.6 S3/1
176592 ST Sgr 19 01 28.9 -12 45 32 7.6 S6/3e
W Aql 19 15 23.7 -07 02 55 7.8 S6/6e
180196 T Sgr 19 16 14.4 -16 58 11 7.7 S5/6e
185456 R Cyg 19 36 49.1 +50 11 59 6.5 S6/6e
187796 Chi Cyg 19 50 33.8 +32 54 51 3.3 S7/1.5e
188339 19 56 10.9 -38 19 12 6.6 S
191226 20 07 25.2 +36 34 24 7.4 M1S-M3SIIIa
191589 20 09 28.2 +33 40 39 7.7 S:
195763 Z Del 20 32 39.1 +17 27 06 8.3 S4/2e
FF Cyg 20 38 52.4 +37 53 20 8.2 S5/6e
199799 20 57 53.1 +44 47 20 8.0 MS
211610 X Aqr 22 18 39.1 -20 54 04 7.5 S6,3e:
216672
HR
Peg 22 54 35.3 +16
56 39 6.5 S4/1
218634 57 Peg 23 09 31.9 +08 40 31 5.4 M4S
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