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Table 1

Basic data on Mrk 996.

Parameter Value

α(J2000) 01h27m355
δ(J2000) −06°19′36′′
Heliocentric velocity [km s-1] 1622
z 0.0054
Distance [Mpc] 21.7
C(Hβ) 0.53a
E(B − V)Gal 0.044



Logarithmic reddening parameter from the 086 aperture HST spectrum of Thuan et al. (1996).

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