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Sharpless	Instrument	Exposure	Camera	Filters
SH2-308	MakNewt 8 inch F/4	16 hours 30 minutes	QSI 583 WSG	RGB

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Sharpless	Instrument	Exposure	Camera	Filters
SH2-308	MakNewt 8 inch F/4	16 hours 30 minutes	QSI 583 WSG	RGB

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Sharpless	Instrument	Exposure	Camera	Filters
SH2-308	MakNewt 8 inch F/4	18 Hours	ST-10 XME	SII, H-Alpha, OIII

Sharpless	SH2-308
Common Name	Sharpless 308
Filters	SII, H-Alpha, OIII

Exposure	18 Hours
Instrutments	MakNewt 8 inch F/4
Cameras	ST-10 XME

Sharpless	SH2-308
Common Name	Sharpless 308
Constellation	Canis Major
RA	6h 52m
DEC	-23d 52m
Size	35
Shape	Irregular
Brightness	Midrange
Object Type	Diffuse Nebula
Type	Emission
Other Catalog #	None

This small nebula is surrounded by a number of Sharpless objects SH2-304, Sh2-303, and SH2-310 which is the largest. This object is very faint and will take a long exposure in any filter used. The color image of this does not use any narrowband filters because I wanted to show the colors you can expect with green covering most of it. The brightest area is the bottom loop and this might be a good area for larger telescopes to center on. Sh2-308 does not respond much at all in Sulfur II but better in Hydrogen-Alpha. However, the Oxygen III is by far the strongest channel. So I used H-Alpha for red, OIII for green, and SII for blue. A large camera with a very large field of view can pick up a lot of nebula in the surrounding area

Web page for SH2-308

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