Deep sky observing in Parainen 10./11.3.2013

Date: 10./11.3.2013
Time: 21:00-23:20
Observing site: Stormälö, Parainen, Finland
Instrument: L102/1000mm (4” Refractor)

NELM: 6,0
SQM: 20,91
Darkness of the background sky: 3
Seeing: 2
Transparency: 2
Weather: Clear sky, -19 °C, calm, snow on the ground, no Moon, no aurora, zodiacal light visible in NW sky

Objects observed: Messier 3 (visual, sketching)

This was my second trip to my observing place in Parainen now in March 2013! Also this time the zodiacal light was visible, and this time I was also able to photograph this phenomena! Also now the zodiacal light was visible in the NW sky as a faint, southwards tilted, diffuse glow of light that was following the line of the ecliptic. And just like last time, it was best visible with averted vision and sweeping. Winter Milky way was somewhat visible, and the conditions were pretty much the same than last time two nights ago.


Besides photographing this light scattered by interplanetary dust, I made also one deep sky -sketch. This time I observed Messier 3, a globular cluster in Canes Venatici. I made the observation with my 102/1000mm refractor (4” refractor).

Messier 3: with 102/1000mm refractor @67x this cluster appeared as a bright, round nebula. The brightness of the cluster increases inwards, and it seems to be well condensed and concentrated towards the center. The cluster is clearly granulated, and some individual stars can be resolved. @133x several individual stars can be seen.

Messier 3 observed with 4'' Refractor
Messier 3 observed with 4” Refractor
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