Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: JohnP on Nov 06, 2004, 01:07:00

Title: M45 with TouCam
Post by: JohnP on Nov 06, 2004, 01:07:00
Had a chance to do some imaging around Chris's house last night . We decided to try a mosaic of M45 using my colour TouCam (long exposure mod) mounted on Chris's 400mm Scope all piggybacked on his LX90. The image is a mosaic of 8 individual images - Each of the 8 images is a stack of 50 X 5 secs frame (darkframe subtracted) - Virtually no post processing except to darken back ground sky due to the 'zillion watt' floodlights at the back of Chris's garden - It amazes me that you can image anything at all. We got most of M45 (should have planned a bit better). I've included an inverted image which shows stars to about mag 13. Both images were reduced in size from original 1820X873 pixels.

Cheers, John


M45 Colour:

(http://homepage.ntlworld.com/john.punnett/graphics/oas/M45_OAS1.jpg)

M45 B&W Inverted:

(http://homepage.ntlworld.com/john.punnett/graphics/oas/M45_OAS2.bmp)

[ This Message was edited by: JohnP on 2004-11-05 17:09 ]

[ This Message was edited by: JohnP on 2004-11-05 17:10 ]
Title: M45 with TouCam
Post by: Rick on Nov 07, 2004, 02:56:00
Interesting to see the negative image as well. It does seem to make the fainter stars easier to see.
Title: M45 with TouCam
Post by: Rick on Nov 08, 2004, 07:46:00
John, would you be prepared to submit those two to the OAS website gallery? Please? I think the comparison between them makes a useful point, and the mosaic is impressive by itself too.
Title: M45 with TouCam
Post by: JohnP on Nov 11, 2004, 18:10:00
Hi Rick,

Yep - No problem - I'll send them to the gallery by the end of the week.

Cheers,  John