M 20 ZWO ASI 071

[Benklerk]

Messier 20
The Trifid Nebula is an H II region located in Sagittarius. The object is an unusual combination of an open cluster of stars; an emission nebula a reflection nebula and and a dark nebula. The Trifid Nebula is a star-forming region in the Scutum spiral arm of the Milky Way.
The most massive star that has formed in this region is HD 164492A, an O7.5III star with a mass more than 20 times the mass of the Sun.

GSO 6" RC
HEQ5 Pro
ZWO ASI 071 OSC Gain 0
4min x 15 = 1hr

[MarsG76]

Beautiful result... something to be proud of... 

[PeterCPC]

I agree but the background looks a bit yellow on my screen.

Peter

[Allinthehead]

That's lovely. You must have wonderful conditions to get a result like that from 1 hr.

[ollypenrice]

Isn't that great. And done in an hour! Amazing.

For me the golden background sky is right. Widefields of this and neighbouring targets show this golden colour as a result of all the gas and dust around the galactic centre. It reddens the stars as well.

Olly

[Benklerk]

Thanks for you comments, my avg seeing for this night was about 2.5 arc sec, and live 1050m above sea level, 100km away from the nearest city. So I do have clear skies. Each time I use my new camera on my 6". I surprise my self on how good the images come out.

Can't wait to start building my observatory with all new gear. I wounder what I could do with a Ha filter if I get good OSC images now.

[wimvb]

19 hours ago, ollypenrice said:

Isn't that great. And done in an hour! Amazing.

.

Olly

Certainly great. And with a 6" RC!

But, @Benklerk, is this with a reducer? It seems a wide field for the native f/9.

[Benklerk]

1 hour ago, wimvb said:

Certainly great. And with a 6" RC!

But, @Benklerk, is this with a reducer? It seems a wide field for the native f/9.

Hi wim

No, I don't use a focal reducer. I have a flattner. One problem with the GSO 6" is it has bad coma around the edges and a field flattner reduces this.

The FL is 1370mm, and the chip size is 15.6 x 23.6.

ben

[Rodd]

Wonderful delicate M20--details galore.  I do not think the background is yellow--there are allot of yellow/red stars that kind of give the impression of a yellowish background, but as Olly said--I think that's right from what I have seen. 

Rodd