[Prev][Next][Index][Thread][Search][Objects]
(IAAC) Obj: NGC2440 - Inst: 30cm f/10 SCT, 61cm f/4.5, 56cm f/4.1
----
Observation Poster: James (Jim) Anderson <madmoon@bellsouth.net>
Observer: James (Jim) Anderson
Your skills: Intermediate (some years)
Date/time of observation: 02212004/03554ut
Location of site: W. Summerland Key, FL (Lat 24.6, Elev 10')
Site classification: Exurban
Sky darkness: 6/10 <1-10 Scale (10 best)>
Seeing: >8/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 30cm f/10 SCT, 61cm f/4.5, 56cm f/4.1
Magnification: 134X, 254X, '~366X'
Filter(s): O-III
Object(s): NGC2440
Category: Planetary nebula.
Class: 5+3
Constellation: Pup
Data: mag 11.5v size 54.0" x 20.0"
Position: RA 07:41.9 DEC -18:12.5
Description:
134X-NGC2440 appears as a blue-green tiny spot, not quite star like. It blinks
strongly with the O-III filter. Note the double stream of stars across the
North.
254X-NGC2440 appears as an oval with fairly well defined edge, with noticably
bright center, but without a center star.
(Using Pierre Faucher's 61CM; f:4.5 StarMaster, NGC2440 appears much the same
as with the 30CM, f:10 SCT with the addition of some very faint arcs outward
from the minor axis and a very tiny dark speck near the center and the disc
fleetingly seems mottled.)
My observation sketch and notes of NGC2440 from 04062002/0434ut made at Clark
Creek, NC (35.5N) with my 56CM;f:4.1 StarMaster seems slightly superior even
with poorer seeing, though the transparency and darkness was better.
--
Optional related URLs: http://visualdeepsky.org/logs/msg03139.html
--
** This observing log automatically submitted via the Web from:
http://www.visualdeepsky.org/enter-log.html
To stop receiving all 'netastrocatalog' lists, use the Web forms at:
http://www.visualdeepsky.org/subscribe.html