The revised distance to NGC 55 2003-08-29 The revised distance to NGC 55 G. C. Van de Steene (ROB) G. H. Jacoby (WIYN) C. Praet (U. Gent) H. Dejonghe (U. Gent) Seattle, APN

NGC 55 SB(s)m Sculptor Group i = 85° Vhelio 111 km/s 2003-08-29 NGC 55 SB(s)m Sculptor Group i = 85° Vhelio 111 km/s R25 18.′9 =8.8 kpc M0B 18.4 DSS 2004-05-19 ESO, PNe beyond the MW Seattle, APN

Data WFI at ESO 2.2 m telescope July 1999. FOV 34'. Seeing ~1.5". 2003-08-29 Data WFI at ESO 2.2 m telescope July 1999. FOV 34'. Seeing ~1.5". OIII/ 8 5023.93 80.34 88% 2h35min 518/16 5188.29 163.45 1h20min Hα/7 6588.27 74.31 87% 3h Reduced with the mscred package in iraf PNe by blinking Point sources, [OIII]>Hα, no continuum 2004-05-19 ESO, PNe beyond the MW Seattle, APN

PNe Candidates 2004-05-19 ESO, PNe beyond the MW 2003-08-29 Seattle, APN

PNLF distance 2.6 +/- 0.4 Mpc 2004-05-19 ESO, PNe beyond the MW 2003-08-29 PNLF distance 2.6 +/- 0.4 Mpc 2004-05-19 ESO, PNe beyond the MW Seattle, APN

Distance determinations to NGC 300 and NGC 55 2003-08-29 Distance determinations to NGC 300 and NGC 55 PNe PNe PNe PNe Cep SG TF TF SG 2004-05-19 ESO, PNe beyond the MW Seattle, APN

The Sculptor Group Karachentsev et al. 2003 2004-05-19 2003-08-29 The Sculptor Group Karachentsev et al. 2003 2004-05-19 ESO, PNe beyond the MW Seattle, APN

Distances Structure + Karachentsev et al. 2003 2004-05-19 2003-08-29 Distances Structure + 2004-05-19 ESO, PNe beyond the MW Karachentsev et al. 2003 Seattle, APN

Conclusions We found 21 PNe candidates in NGC 55 2003-08-29 Conclusions We found 21 PNe candidates in NGC 55 2.0 < DistNGC55 < 2.6 Mpc +/- 0.4 Mpc It probably forms a pair with NGC 300 and E410-005 may be an isolated dwarf galaxy. NGC55 needs a better determined distance. 2004-05-19 ESO, PNe beyond the MW Seattle, APN