B33 Horsehead Nebula and IC434, NGC2024 Flame Nebula

 

Date: 29 November 2003 night

Telescope: Bosma 80mm F6.25 refractor with Televue 0.8x reducer, piggybacked on C8 and Gemini G-41 mount

Guiding: ST-4 Autoguider with Celestron C8

Camera: Genesis KAF1602E with Astronomik Filterwheel

Location: Tai Mei Tuk, Hong Kong

Exposure: with Astronomik Hydrogen Alpha filter: 30 x 5mins

Software: Image acquisition by MaximDL, calibration and auto-aligned by Astroart

 

Date: 28 December 2003 morning

Telescope: Borg 76ED with Televue 0.8x reducer, piggybacked on C8 and Gemini G-41 mount

Guiding: ST-4 Autoguider with Celestron C8

Camera: Genesis KAF1602E with Astronomik Filterwheel

Location: Tai Mei Tuk, Hong Kong

Exposure: with Astronomik Hydrogen Alpha filter: 20 x 10mins

Software: Image acquisition by Astroart, calibration and auto-aligned and coregistered by Astroart to the previous exposure on 29 Nov., the two exposures  were combined by Sigma Beta11 using sigma clipping, blooming spikes removed in Photoshop, R-L deconvolution in AIP4WIN.