NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-03-26 T17:56:43 PDT
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Notes for object IC 4441

6 note(s) found in NED.


1. 2002ApJS..143...73E
Re:IC 4444
IC 4444.---(R)SB(r)cd: Star just north of nucleus. Small, faint bulge,
threaded by well-defined bar. There appears to be a complete inner
ring at the radius of the bar ends, but the star makes this diffcult
to determine. There are at least three spiral arms, all of which
commence from the ends of the bar. The SE end of the bar has one arm
emanating from it, winding to the west. This arm extends only
90deg before it fades into the ambient disk. The NW end of the bar has
two arms emanating from it. One is tightly wound, short, and full of
bright star-forming knots. The other is quite loosely wound and wraps
for ~180deg before fading. This third arm has a region of intense star
formation roughly east of the bulge (winding angle of ~120deg).

2. 1994CAG1..B...0000S
Re:IC 4444
Sc(s)II pec
CD-1875-HB
April 10/11, 1981
103aO + GG385
45 min
The surface brightness of the central region
and the two inner spiral fragments beginning
therein is very high. The arm pattern is not
symmetrical, yet the spiral feature of the three
(perhaps four) arm segments is definite.
The redshift is v_o = 1760 km/s. Only a
very few (if any) HII-region candidates have been
identified.

3. 1985SGC...C...0000C
Re:IC 4444
Plate 2286
Overexposed center, very thick arms; similar to NGC 0278. IC 4441 (Scp+Im;
note correction to IC position in ESO/Upps) 17.9 south-preceding.

4. 1982ESOU..C...0000L
Re:ESO 142827-4311.9
=ESO 272- G 14
speckled

5. 1979AJ.....84..472S
Re:IC 4444
May have hot spots in nucleus.
High SB central region.
Suggestions of HII regions.

6. 1976RC2...C...0000d
Re:IC 4444
Classification, Photograph, and Dimensions:
Ap. & Space Sc., 28, 365, 1974.


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