Profile cover photo
Profile photo
Michael Cook
125 followers -
Owner-operator of Newcastle Observatory
Owner-operator of Newcastle Observatory

125 followers
About
Michael's posts

Post has attachment
Happy New Year Goggle Friends!
Photo

Post has attachment
Just completed in time for the New Year. 2017 Moon Phase Calendar is available for download. http://www.newcastleobservatory.ca/node/153

Enjoy and Happy New Year!


Post has attachment
The November issue of Sky & Telescope arrived in the mail a few days ago. It is the 75th Anniversary issue, and that prompted me to get the the DVDs of "the Sky" and "The Telescope" magazines, which merged to form Sky & Telescope in 1941. Since I love historical astronomy, I'm looking forward to "leafing" through the DVDs. Happy anniversary +SkyandTelescope magazine!
Photo

Post has attachment
Been a while since I posted anything. But I found this light curve of the cataclysmic variable star LS Peg particularly interesting. There is quite the inflection at minima. The data was obtained over 5 hours in V-band at +newcastleobservatory.
Photo

Post has attachment
My second time-series attempt captured two complete eclipses of the DQ Her system (http://simbad.u-strasbg.fr/simbad/sim-id…). Photometry in V-band, 60s cadence, 6 hours of data. Dome, telescope and CCD managed by https://plus.google.com/+Dc3DreamsAstro
Photo

Post has attachment
Almost captured a second complete eclipse of the DQ Her system (http://simbad.u-strasbg.fr/simbad/sim-id?Ident=V*+DQ+Her&NbIdent=1) last night.

This was my first time-series on DQ Her. The light curve (top curve) is from data over ~6 hrs. Exposures were 60s in V-band, giving good SNR. For photometry I used AAVSO AUID 000-BCN-345 as comp star (C) and 000-BCb-308 as check star (K). Data reported to AAVSO and CBA.

The bottom (flat-line) curve is K-C (C2-C1) is to show that sky conditions and the time series are nominal.
Photo

Post has attachment
Assisting astronomer using William Herschel Telescope (WHT) at La Palma tonight with monitoring of 20 CVs https://www.aavso.org/aavso-alert-notice-543

Looking for outburst events.

Post has attachment

Post has attachment
About 30 minutes past mid-transit during #MercuryTransit. Still nearly 3 hours to go!
Photo

Post has attachment
Progression #MercuryTransit. <30 min to mid-transit. https://youtu.be/cqm-yazOd2o
Wait while more posts are being loaded