Table 1: Parameters of all known pulsating PG 1159 stars (corresponding to filled dots in Fig. 1), including the new pulsator HE 1429-1209. See text for references.
$T_{\rm eff}$ $\log g$ M Unstable periods Observed periods

Name (1000 K) (cm/s²) ( $M_\odot$ ) (s) (s)

PG 0122+200 80 7.5 0.50 202-822 336-612

PG 1159-035 140 7.0 0.53 483-704 430-840

PG 1707+427 85 7.5 0.52 200-778 336-942

RX J2117.1+3412 170 6.0 0.70 1289-2332 694-1530

PG 2131+066 95 7.5 0.55 191-643 339-598

HS 2324+3944 130 6.2 0.55 1355-3013 2005-2569

K1-16 140 6.4 0.50 857-2192 1500-1700

NGC 246 150 5.7 0.70 1160-1466 1460-1840

Longmore 4 120 5.5 0.65 831-2325

HE 1429-1209 160 6.0 0.68 919

**Table 1:** Parameters of all known pulsating PG 1159 stars (corresponding to filled dots in Fig. 1), including the new pulsator HE 1429-1209. See text for references.
	$T_{\rm eff}$	$\log g$	M	Unstable periods	Observed periods
Name	(1000 K)	(cm/s²)	( $M_\odot$ )	(s)	(s)
PG 0122+200	80	7.5	0.50	202-822	336-612
PG 1159-035	140	7.0	0.53	483-704	430-840
PG 1707+427	85	7.5	0.52	200-778	336-942
RX J2117.1+3412	170	6.0	0.70	1289-2332	694-1530
PG 2131+066	95	7.5	0.55	191-643	339-598
HS 2324+3944	130	6.2	0.55	1355-3013	2005-2569
K1-16	140	6.4	0.50	857-2192	1500-1700
NGC 246	150	5.7	0.70	1160-1466	1460-1840
Longmore 4	120	5.5	0.65		831-2325
HE 1429-1209	160	6.0	0.68		919

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