UGCA 442
UGCA 442 (HIPASS J2343-31)
is a Magellanic barred spiral galaxy oriented close to edge-on.
Karachentsev et al. (2003) give a TRGB distance of 4.27 ± 0.52 Mpc. Its
nearest neighbour is the bright spiral galaxy NGC 7793, just over 3 degr away
Using our ATCA HI data we find an extended, regular rotating HI disc apart
from minor deviations towards the southern (receding) end (see also Cote et
al. 2000). We measure FHI = 52.2 Jy km/s, in agreement with HIPASS (Koribalski
et al. 2004), and derive MHI = 2.2 × 108 M☉.
Hα imaging of UGCA 442 revealed five HII regions within the stellar
disc, which are discussed by Miller (1996), Lee et al. (2003), and Meurer et
al. (2006).
Reference:
Koribalski et al. 2018
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