Astro Home

Welcome to my Astro Home! I will try to document my astronomy activites on these pages, so you might want to check back from time to time. If you want to comment on anything, don't hesitate to to me.

Astronomy Awards

Legal notice: All images, video or text on this website is Copyright (c) Carsten A. Arnholm. Any commercial use of this information requires an advance, written permission from me. Please contact .

Merk: Alle bilder, video eller tekst på dette webstedet er Copyright (c) Carsten A. Arnholm. All kommersiell bruk av denne informasjonen forutsetter skriftlig forhåndstillatelse. Kontakt .

Latest updates

19 Feb, 2010 Rustadgrenda Weather Station is online! (Update 26. Jan 2011: broken link fixed)

Rustadgrenda Weather Station

8 Nov, 2009

wxAstroCapture 1.7

A new version of wxAstroCapture supporting Windows and Linux has been released. Download via the wxAstroCapture page.

Kubuntu 8.04

Windows XP

Kubuntu 9.10

11 Mar, 2009 The following programs are now available for download (Windows and Linux)

SolarSimulator (a.k.a. "Sim1")
SolarSimulator2 (a.k.a. "Sim2")
Solar System 3d Simulator

01 Aug, 2008

Partial solar eclipse from my home observatory

Click image below to see all other images

04 May, 2008

Solar Cycle 24 sunspot

Captured using wxAstroCapture using C8 with full aperture Baader astrosolar film and Philips ToUcam 740k in prime focus (F10).

A full disk image indicating the spot location can be seen here. (FS60C and Coolpix 995)

09 Nov 2007

NGC 206

Star forming region in Andromeda, 2.5 million light years away.

03 Nov 2007

Comet 17p/Holmes

04 Sep 2007

NGC 7635
Bubble Nebula

04 Sep 2007

IC 1396
Elephant's Trunk

04 Sep 2007

Tulip nebula

01 Sep 2007


31 Aug 2007

Pelican nebula

28 March, 2007


22 Jan, 2007

NGC 2264, Cone Nebula

05 Jan, 2007

ImageTOOLSca 3.0, new version released!

Now with automatic alignment and stacking More info and download here.

  • Fast processing.
  • Fully automatic, no need to select alignment star.
  • Supports translation, rotation and scaling alignments.
  • Automatic resampling allows stacking of images with different binning.
  • Each aligned frame may be saved separately.
  • Save to 16 bit or 32 bit FITS for max dynamic range.

Example stacked image: IC410
C8 @ f6 using Artemis 285 camera
15x240s (2x2 binning)
16x240s (1x1 binning)

Dec 27, 2006

M1 in Ha

Nov 19, 2006


Nov 14, 2006

M33 in Triangulum

Oct 08, 2006

NGC7822 in Cepheus

Aug 30, 2006

Bubble nebula

  • C8 @ f6

  • Artemis 285. LRGB

  • Image Calibration in ImageTOOLSca
  • Aug 30, 2006

    M27 LRGB

  • C8 @ f6

  • Artemis 285. LRGB

  • Image Calibration in ImageTOOLSca
  • 03 August, 2006

    Cocoon Nebula (IC5146)
    in H-alpha

    April 16, 2006

    Abell 2065

    Cluster of galaxies 1,500,000,000 Light years away.

    (Click image for full size)

    April 16, 2006

    Animation and still image of comet 73P Schwassmann-Wachmann fragment C, seen from Norway

    (Click image for animation)

    February 24, 2006

    M35 and NGC 2158

    (Click image for full size)

    January 28, 2006

    NGC 2237, the Rosette Nebula

    October 16. 2005

    I have released my review of the Artemis 285 CCD camera.

    October 3. 2005

    I participated in a solar eclipse webcast

    See the time-lapse replay video of the eclipse.

    I operated the "Heggedal" cameras. Heggedal is my home ~30km south of Oslo, Norway. I also assisted the Spain team with software and other feedback.

    October 28, 2004

    Lunar eclipse

    See the Time-Lapse animation (1.3MB AVI DivX)
    See also the animation from Lunar eclipse 08-09 Nov 2003 (9.3MB MPEG).