Deep Sky Object in Summer
Nebulae in northern region of Antares

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Date & Time:	May 11 2007, from 24:11 to 24:53 JST(+0900), 4min. x 4shots
	May 11 2007, from 24:58 to 25:11 JST(+0900), 4min. x 4shots
	Mosaic of 2 images
Optical:	TAMRON SP 300mmF2.8, Aperture: F2.8
	with IDAS LPS-P2 Light-pollution suppression filter
	Auto-guided with TAKAHASHI JP Equatorial
Digital Camera:	Nikon D70 (Remodeled)
Location:	Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings:	Recording Format...12bit CCD-RAW, converted to 8bit TIFF(3008 x 2000)
	CCD Sensitivity...ISO800

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This image shows you a star filed around northern region of Antares in Scorpius with a span of about 5 degrees. There is a vast dark nebula in this area, and very complicated reflection and ionized nebulae are tangled. It can be said this field is one of the most colorful areas in heavens. A dark nebula near Antares is reflecting the Antares's light and we can see it as an orange-colored reflection nebula, has a number of IC4606. And you can see a round bluish reflection nebula of IC4604 in upper side, is reflecting a blue light from rho Ophiuchi. And one more, a reddish diffused nebula of Sh2-9 in right hand side is glittering by ionized from the light of sigma Scorpii, the mechanism of luminescence is different from that of former two nebulae.

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Diffused Nebulae in Cygnus

Nebulosities around head of Scorpius

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