Orion Nebula in Narrowband, My First Attempt

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
Post Reply
User avatar
Meng Lee
Posts: 1233
Joined: Wed Mar 28, 2007 1:36 pm
Location: NTU, Woodlands

Orion Nebula in Narrowband, My First Attempt

Post by Meng Lee »

Hi all,

My first attempt on full narrowband imaging of Orion Nebula

Scope: Vixen ED 115 with reducer
Filters: Baader Ha, SII, OIII
Ha = 30 mins
SII = 40 mins
OIII = 30 mins

Colour Palatte : RGB = HSO

It looks noisy due to the poor data from SII and the background colour looks strange due to the poor data from SII also.


Image
Top
User avatar
cataclysm
Posts: 1024
Joined: Mon Aug 29, 2005 11:23 pm

Post by cataclysm »

Hi Meng Lee, nice attempt! Lots of details, yes the picture will smooth out with more data. Is your camera cooled? ............I shot this all time favourite a couple of nights ago in narrowbands with 350D, yet to process it....... [smilie=good-job.gif]
Top
User avatar
Tachyon
Posts: 2038
Joined: Wed Jun 01, 2005 11:40 am
Location: Bedok

Post by Tachyon »

Nice attempt! I also learned by experience that you need LOTS of data for SII. Ha and OIII are abundant in nebulae but SII is pretty tricky! Try 1:3:2 for Ha:SII:OIII.
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
Top
User avatar
wucheeyiun
Posts: 1758
Joined: Tue Sep 07, 2004 5:57 pm
Location: marine parade
Contact:
Contact wucheeyiun

Post by wucheeyiun »

Nice.....lots of nebula ... i have yet process my "point and shoot" m42 yet :)
Top
User avatar
Clifford60
Posts: 1289
Joined: Mon Sep 04, 2006 8:41 pm
Location: Central

Post by Clifford60 »

Other than color and noise, it is a great attempt for 1st try.
Top
User avatar
swat_pup6433
Posts: 310
Joined: Sun Aug 15, 2004 2:16 am
Contact:
Contact swat_pup6433

Post by swat_pup6433 »

what camera is this taken with ?
Top
User avatar
Meng Lee
Posts: 1233
Joined: Wed Mar 28, 2007 1:36 pm
Location: NTU, Woodlands

Post by Meng Lee »

Hi all,

Thanks for all that. I think it is quite fun to try all these false colour images. At least imaging in urban areas + half a moon is not about trying to remove gradients!

Oh Kelvin, the Atik camera is cooled.

I think based on the histograms I see, I suggest the ratio Ha : SII : OIII = 1 : 5 : 1.2 in order to match S/N of all channels to achieve real narrowband imaging for Orion Nebula.

Guys, share your processed pics soon :) [smilie=cute.gif]
Top
User avatar
Meng Lee
Posts: 1233
Joined: Wed Mar 28, 2007 1:36 pm
Location: NTU, Woodlands

Post by Meng Lee »

So, Zongye, itching for the DSI 3 now? hehe

Anyway, this is in the Hubble space telescope colour scheme. Notice the characteristic red stars.

Image
Top
User avatar
swat_pup6433
Posts: 310
Joined: Sun Aug 15, 2004 2:16 am
Contact:
Contact swat_pup6433

Post by swat_pup6433 »

haha no lae.. think i am still eyeing ur atik! LOL
Top
User avatar
swat_pup6433
Posts: 310
Joined: Sun Aug 15, 2004 2:16 am
Contact:
Contact swat_pup6433

Post by swat_pup6433 »

hmm but wad camera did you use for the orion? the atik or the starshoot pro ?
Top
Post Reply

Return to “Astrophotography”