Deep Sky Object in Winter
Wide field around Rosette Nebula

Date & Time: Jan 28 2006, from 23:47 to 24:17, from 25:31 to 26:01 JST(+0900)
Mosaic of 2 images
Optical: SMC PENTAX f=300mm F4.0, Aperture: F4.0
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial
Camera: PENTAX 67
Film: Ektachrome E200 (+1EV pushed)
Location: Ooizumi, Hokuto city, Yamanashi pref.

This is a wide field image captured around the Rosette Nebula floating in the dimmed Milky Way of Monoceros. One is likely to take an attention to only the Rosette Nebula, but we can detect very faint nebulosities in wider field.
The dimmed and vast reddish region in upper part of this picture is an inter-stellar gaseous matter surrounding an open cluster of NGC2264 that contains a variable of S Mon. And the pale nebula and Rosette Nebula are linked with a moreover slight reddish nebula like a swirling gaseous flow. Those nebulae cannot be detected with our naked eyes at all, and it might be needed very high transparency and dark night skies to record those nebulae on photo films.
This picture contains several other diffused nebulae bathed in the winter's Milky Way; you can browse individual images from anchors below.

Rosette Nebula(NGC2237)

Southern region of Rosette Nebula

Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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