Telescope Reviews: ghost nebulae around gamma CAS

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Astrophotography and Sketching >> Sketching

Pages: 1

yann pothier
member

Reged: 10/16/07

Loc: Paris, France

ghost nebulae around gamma CAS
#3087855 - 05/06/09 03:04 AM

Hi,

I am in the process of revisiting some old drawings of mine, making them bigger (30cm rather than <10cm), using new drawing tools (blur pencil) and digital finish (place and form of stars, spikes), a mix of standard drawing and electronic means !

Here after is a final rendition of IC 59 and 63 around Gamma CAS seen through the 17.5" coulter at 74x (Hbeta filter was used for the nebulae).

Below are the same fields seen on DSS2 (wikisky.org) and a scan of the original drawing obtained at the telescope.

For the Gamma spikes, I used the following tutorial for photoshop :
http://www.iceinspace.com.au/63-430-0-0-1-0.html

clear skies to you, Yann.

Post Extras:

Jeremy Perez
Carpal Tunnel

Reged: 08/12/04

Loc: Flagstaff, Arizona, USA

Re: ghost nebulae around gamma CAS new

[Re: yann pothier]
#3087879 - 05/06/09 03:30 AM

Excellent sketch, Yann. It's nice to see the old & new and the photo comparison. Have fun with the rest!

Post Extras:

frank5817
Postmaster

Reged: 06/13/06

Loc: Illinois

Re: ghost nebulae around gamma CAS new

[Re: Jeremy Perez]
#3088561 - 05/06/09 01:52 PM

Yann,

This is a beautiful sketch; it is so nice to see the comparison between the photon accumulation of a photo versus the instantaneous rendering of the eye at the eyepiece. This is most enlightening for newbie visual observers wanting to do deep sky observing to the limit.