Iiro's DeepSky Sketches

Name: NGC 3372Other name: Dunlop 309
RA: 10h 45.1m DEC: -59° 52'
Constellation: CAR
Type: Bright nebula
Magnitude: 3
Size: 120' x 120'
Classification: E
Description: ! great neb,Eta Carinae
Notes: Keyhole Nebula & nova-like var Eta Car invl,many drk lanes
Observer: Iiro Sairanen
Location: Nangerwalla, Mullewa, Australia
Date: 17/18.12.2009 1:30
Instrument: Newton 110/805 mm
Magnification: 38xFilter: O-III
Field: 106'Seeing: 2
Background sky: 1NE lim mag: 7.8
Visuality: IHeight: 42°
Weather: +19°C
Description: Eta Carinae Nebula. What a mess! The largest possible field is needed to see the whole complex at the same time. This is very good object for binoculars and small telescopes. O-III filter gives a good contrast and weak structures become much sharper, of course many of them are visible without filters. Especially Key Hole Nebula around Eta Carinae is full of details. Reminds me little bit of M8 with dark canals and open clusters.
Updated: 27.8.2010 23:26