Tail of Scorpius

[nebulosity. (Jo)]

G'day fellas,

Here is a wide field I captured the other day, turned out not to bad I think.

1.6 hours, 4 minute subs at iso 400, Canon 350D, 85mm lens at F5.6

Had some trouble with hot pixel streaks and stuff in the stacked image so on the next night I took 40 darks and restacked it using standard deviation stacking in Nebulosity and it cleaned up pretty well.

Biggerer proper version Here.

EDIT, did a repro, new version Here.

Cheers
Jo

[multiweb (Marc)]

Really cool shot. The clusters came up well.

[Rex]

Beautiful shot Jo! You've even got the cat's paw in there. Well done mate!

[rustigsmed (Russell)]

that is awesome Jo, I really like the detail and natural looking star clouds.

Rusty

[Regulus (Trevor)]

Very nice result Jo.

[cometcatcher (Kevin)]

Beautiful shot Jo. Nicely processed.

[nebulosity. (Jo)]

Thank you Marc, Rex, Russel, Trevor and Kevin!

I'm pretty happy with the clusters considering that the camera is only 8mp, they had a bit of CA around them from the lens but I was able to remove most of it.

Never properly images the cats paw before so was happy to get that.

I have had some trouble getting the star fields the right temperature to glad you like them.

Cheers
Jo

[SimmoW (SIMON)]

That's an ace wide field! Must be a good lens, Sharp stars.

[nebulosity. (Jo)]

Originally Posted by SimmoW

That's an ace wide field! Must be a good lens, Sharp stars.

Thanks Simon, yes the 85mm is a beauty. Best lens I have ever used for wide fields.

Jo

[LightningNZ (Cam)]

Really nice image Jo. Those long subs clearly pay off. I'd have thought with 1.6 hours the two nebulae would be appear brighter though? I've never imaged them, so just wondering aloud.
Cheers,
Cam

[raymo]

Great job Jo, I haven't done much wide field, must do some.
raymo

[nebulosity. (Jo)]

Originally Posted by LightningNZ

Really nice image Jo. Those long subs clearly pay off. I'd have thought with 1.6 hours the two nebulae would be appear brighter though? I've never imaged them, so just wondering aloud.
Cheers,
Cam

Thanks for your input Cam, these two nebs are pretty difficult targets for unmoded cameras, and it looks like the 350D isn't real sensitive to the Ha as much as the newer cameras like the 1100D. I did do a repro and gave the image a bit more life, see Here.

Originally Posted by raymo

Great job Jo, I haven't done much wide field, must do some.
raymo

Yes, would be great so see some wide field from you.

Cheers
Jo

[glenc (Glen)]

Great image Jo. I just picked out the middle of our galaxy, Sgr A*

[nebulosity. (Jo)]

Originally Posted by glenc

Great image Jo. I just picked out the middle of our galaxy, Sgr A*

Thanks Glen, will have to have a look.

Jo

[RickS (Rick)]

The Astrobin version is very nice, Jo!