Kinematic study of planetary nebulae in NGC 6822 | Astronomy & Astrophysics (A&A)

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Table 1

Physical properties of NGC 6822.

Property	Value	Ref.

Hubble type	IB(s)m	(1)
Other ID	DDO 209, IC 4895
RA (J2000)^a	19h44m56.6s	(2)
Dec (J2000)^a	–14° 48′ 04.5′′	(2)
Distance (kpc)	459 ± 17	(3)
Systemic Vel. (km s^-1)	–57 ± 2, 55 ± 2	(4, 5)
Inclination (deg)	50.1	(2)
E(B − V)	0.231	(3)
M _V	–15.2 ± 0.2	(6)
M_⋆ (10⁶M_⊙)	100	(4)
M_HI (10⁶M_⊙)	130	(7)
12 + log (O/H), A	8.36 ± 0.19	(8)
12 + log (O/H), H ii	8.11 ± 0.10	(9)

Notes.

^(a)

H i dynamical center coordinates.

Reference. (1) NASA/IPAC Extragalactic Database; (2) Brandenburg & Skillman (1998); (3) Gieren et al. (2006); (4) Koribalski et al. (2004); (5) Mateo (1998); (6) Dale et al. (2007); (7) Weldrake et al. (2003); (8) Venn et al. (2001); (9) Hernández-Martínez et al. (2009).

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