NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-03-19 T12:44:56 PDT
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Notes for object NGC 3687

2 note(s) found in NED.


1. 1994CAG1..B...0000S
Re:NGC 3687
SBbc(r)I.2
PH-7606-S
April 3/4, 1979
IIIaJ + GG385
30 min
The multiple-arm pattern in NGC 3687
begins from an almost-complete inner ring that
defines the end of the inner smooth disk. The
bright part of the bar terminates just before the
inner edge of the internal ring.
The thin, regular spiral arms, which eventually
divide into multiple fragments, wind outward
for a radius over the outer disk that is
about twice the radius of the inner ring. The
pattern is regular, requiring an early luminosity
class.
The redshift is v_o = 2456 km/s. The galaxy
that is superposed on one of the outermost arms
is probably a distant elliptical associated with a
cluster that can be seen over the extended field.

2. 1973UGC...C...0000N
Re:UGC 06463
Companion superimposed on the disk at 0.8, 93, 0.1 x 0.1, probably at tip of
spiral arm


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