Observing comet PanSTARRS 15./16.3.2013

Date: 15./16.3.2013
Time: 19:00-21:00
Observing site: Stormälö, Parainen, Finland
Instrument: L102/1000mm (4” Refractor), Canon EOS 1100D, lens: Canon EF-S 18-55mm IS

NELM: 6,0
SQM: 20,44
Darkness of the background sky: 3
Seeing: 2
Transparency: 2
Weather: Clear sky, -15 °C, calm, light sky (nautical twilight)

Objects observed: Comet C/2011 L4 (PanSTARRS) (visual, sketching, photography)

Also this time I started the engine of my car and headed to my observing site in Parainen, where this time I set up my telescope (L102/1000mm) to observe the comet! This time I found the comet at 19:28. The comet became visible with naked eye at 19:39. The comet disappeared behind the trees in horizon at 20:02. This time the time window for observing the comet was much longer, about 30 minutes!

This time I photographed the comet with Canon EOS 1100D through 102/1000mm refractor and with Canon EF-S 18-55mm IS -lens. Besides this, I made also a sketch of the comet.

With my 102/1000mm refractor, the coma of the comet appears to be very condensed, but not totally starlike. The tail of the comet appears to be rather long, the length of the tail is about 30′ (visually). The PA of the tail is roughly 50°. The sky was still pretty light during the observation (nautical twilight).

Comet C/2011 L4 (PanSTARRS) observed with 4'' Refractor at 2013/03/15
Comet C/2011 L4 (PanSTARRS) observed with 4” Refractor at 2013/03/15

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