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The Rosette Nebula in Monoceros (H alpha)

Started by reconair, 01/25/2007 06:01AM
Posted 01/25/2007 06:01AM Opening Post
Takahashi FS60C/G-11/ST2000XM (unguided) 10X60 sec Ha


LSB

Attached Image:

reconair's attachment for post 35493

Scott Busby
A.K.A. Reconair

Carpe Noctum

Mortal as I am, I know that I am born for a day. But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the earth.
- Ptolemy,c.150 AD
Posted 01/25/2007 06:29AM #1
Hi Luis,

Good effort. You are doing it tough doing 60 second exposures. Your camera has an ideal exposure length of approx 3.4 minutes.
When you do 60 sec shots the exposure does not get much above the read noise (the noise created by the electronics reading the chip's image).

So you really need to work out how to use the autoguider it has. Its confusing at first but becomes easy after a few times working it.

Greg.
Posted 01/25/2007 07:15AM #2
Great work Louis!
Looking forward to your longer exposure/autoguided shots! 8)

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 01/25/2007 04:45PM #3
Louis,

Great job! Get your guider going so you can shot longer subs. 10 minutes is a good target. 3.4 is not enough for Ha.

Are you using a reducer?

Posted 01/27/2007 09:39PM #4
Here's a better rendition of the same 60X60s Ha frames.

Attached Image:

reconair's attachment for post 111160

Scott Busby
A.K.A. Reconair

Carpe Noctum

Mortal as I am, I know that I am born for a day. But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the earth.
- Ptolemy,c.150 AD