Rosette visually

[russ]

Has anyone viewed this visually from a typical town backgarden?

This was one of my failures on Saturday night. Used the Ultrablock but no sign of it.

[Casus belli]

Nope. I think the Rosette is just to low for me to observe. I tried a few times last year and had no success.

[Talitha]

I'm out in the country and the Rosette is do-able without a filter but much easier with the O-III. Is your Ultrablock the same as a UHC (narrow-band)? The UHC and O-III are the recommended filters for this nebula but TBH I'm not sure how much light pollution they can cut through.

[stefski]

This is one of my targets for the year as well.

NB. It's size.......Will it fit in your fov?

Stef

[russ]

It should fit? The Rosette is 80'x60' for the whole thing.....i think? The TFOV for my scope with the 26mm Swan is 1.22deg.

Looking at location chart online, i think i may have been in the wrong place.

[ChrisEdu]

It should fit? The Rosette is 80'x60' for the whole thing.....i think? The TFOV for my scope with the 26mm Swan is 1.22deg.

Looking at location chart online, i think i may have been in the wrong place.

In which case, GOTO is your friend!

[russ]

The dob has Push Too but i can never be bothered to set it up. I will have to make the effort next time.

[ChrisEdu]

The dob has Push Too but i can never be bothered to set it up. I will have to make the effort next time.

Indeed - must try harder!

[russ]

yes, slapped wrist for me

[acey]

Rosette is relatively easy to find because it surrounds a cluster (NGC 2244) so if you find the cluster you've found the nebula. But it's big and won't fit in the field of a medium sized scope. So the best way to start on it is with a small instrument - my first view was with 70mm binoculars from a dark site, and I've also viewed it with an 80mm short-tube refractor (unfiltered).

With my 8-inch scope I have to view the Rosette in chunks: it has multiple NGC desginations, and there are definite areas of brightness linked by more tenuous nebulosity. A UHC filter enhances the view, so if I were trying to see the Rosette from a light-polluted site I would definitely use a nebula filter of some type (such as UHC) but would not expect a "light pollution" filter to help. I would start by making sure I'd got the cluster (the right one!) then I'd nudge the scope outwards to try and see any trace of the surrounding nebula. For best results I'd put a hood over my head to block stray light.

Andrew

[russ]

Many thanks Andrew......that's sounds a big help, I'll give that go next time out.

[stefski]

Hi Andrew,

You say a UHC, not an LPR filter will help......Does that mean that the Rosette is an emission nebula? If so, would my OIII filter be a good 'un?

stef

[Doc]

Good advice from Andrew.

Start from outside and work in. This way you might be able to tell where the nebula starts or ends by comparing the different backgrounds.

[acey]

You say a UHC, not an LPR filter will help......Does that mean that the Rosette is an emission nebula? If so, would my OIII filter be a good 'un?

Yes, Stef, it's an emission nebula, so OIII should help.

[stefski]

Cheers Acey!