NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T12:00:12 PDT
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Notes for object NGC 6984

5 note(s) found in NED.


1. 1994CAG1..B...0000S
Re:NGC 6984
Sbc(r)I.8
CD-1595-S/Br
Aug 12/13, 1980
103aO + GG385
45 min
The two principal arms in NGC 6984 begin
on the rim of an almost-complete internal ring
which, as usual, is itself the near-overlapping of
the tightly wound spirals near the center.
One of the two principal outer arms is thick
near its beginning, although it is detached at this
point from the inner near-ring much like one of
the principal arms in M51 (panel 177).
The redshift of NGC 6984 is one of the
larger in the RSA at v_o = 4435 km/s. Nevertheless,
the two largest HII regions in the thick arm
resolve at the 1" level, consistent with core plus
halo diameters of 450 kpc in luminous galaxies
(Sandage and Tammann 1974a).

2. 1985SGC...C...0000C
Re:NGC 6984
Plate 1577
Overexposed center. Small SA(r)0? 5.5 north-north-following.
Plate 3389
Overexposed center. Thick knotty arms. Interacting(?) pair with NGC 6982
at 5.6 preceding. Interacting(?) pair with (R')Sa? at 5.7 north-following.

3. 1982ESOU..C...0000L
Re:ESO 205419-5203.8
=ESO 235- G 20
in cluster

4. 1976RC2...C...0000d
Re:NGC 6984
Pair with NGC 6982 at 6 arcmin

5. 1964RC1...C...0000d
Re:NGC 6984
(r): 0.35 arcmin x 0.25 arcmin. Asymmetric.
There is a bright star 1.3 arcmin following.
Pair with NGC 6982 at 6 arcmin.
Note revision of Mt. Stromlo (1956) classification


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