Minor Planet - 133 Cyrene

07/11/2008 (10:49) by Petri Kehusmaa

Last night I continued testing automated session with CCDAutopilot. Target was asteroid 133 Cyrene. This is data for more than 4 hours. Individual exposure 2 minutes and 103 data points.

133 Cyrene

133 Cyrene

Minor Planet - 376 Geometria

06/11/2008 (12:00) by Petri Kehusmaa

I decided to have this asteroid for my target when testing CCDAutopilot. This session was fully automated for almost 4 hours (I was a sleep when session ended). Everything went well and here is the result. There is a sum image where asteroid movement is visible and lightcurve to see variations of reflected sunlight from asteroid’s surface.

376 Geometria trail

376 Geometria trail

376 Geometria

376 Geometria

V466 AND Faded Away

30/09/2008 (16:00) by Petri Kehusmaa
V466 AND

V466 AND

With only six days in between observations, this dwarf nova faded away for my equipment. On 22nd of September I was able to catch it with my 8″ SCT but six days later it was gone. Light curve below.

V466 AND 080922

V466 AND 080922

HS 2331+3905 kääpiönova / white dwarf on it’s superoutburst

09/09/2007 (11:09) by Petri Kehusmaa

HS2331+3905 HS2331+3905

Havaintokausi on sitten vihdoinkin lähtenyt oikein kunnolla käyntiin pienten takaiskujen jälkeen (laitteet sateessa yli 3 tuntia!)

Ja mikäpä olisi parempi aloitus, kun tämän harvinaisen kääpiönovan ensimmäisen superpurkauksen havainnointi (AAVSO Alert Notice 357). Ensimmäinen käyrä on 06.-07.09.2007 yöltä ja jälkimmäinen 07.-08.09.2007. Jälkimmäisessä on 208 datapistettä ja se on otettu reilun 6 tunnin ajalta.

54 Alexandran valokäyrä / Light curve of 54 Alexandra

28/05/2007 (21:15) by Petri Kehusmaa

54 Alexandra

Lisäsin galleriaan vanhalta sivustolta 54 Alexandran valokäyrän.

I added the light curve of 54 Alexandra to my Astro-gallery from old site.