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Last night (16 April), 9 people attended the SCC Observatory to hunt comets. We got a good look at comets 41P/tuttle-Giacobinni-Kresak and C/2015 V2 Johnson, added objects to member’s Messier lists, and got a good look at Jupiter. Danny and Neil brought their own telescopes to join the sky survey.
Comet US10 Catalina was discovered on October 31st, 2013 during the routine Catalina Sky Survey sweeping the sky for comets and asteroids. Originally it was Mag 18 object but brightened considerably, last week it was at Mag 7.8 mag and visible in binoculars. While comets are notoriously hard to predict, Catalina is expected to fade rapidly now.
I imaged the comet on Feb 8th from Roberts Creek with a Megrez 120mm, Canon 60Da, it is a stack of 17 x 2 minute exposures at 1600 ISO with darks, flats and dark flats applied using Deep Sky Stacker. The comet was in Camelopardis at the time of the image at a DEC of about 74◦, just below Polaris. Time is running out to see Catalina, so grab the binoculars on the next clear night and look north!
Comet Lovejoy c2014/Q2 continues to impress. On Sunday night I tracked it for 2 hours taking a series of 7 second exposures on my Mallincam. Each image was separated by 2 minutes. I then stacked the 60 images using the comet as the reference. The result showing the star trails around a nice comet core is attached.
Comet 15P/Finlay is back and apparently it has reached a brightness level making it visible in binoculars this time. Currently it is visible in the western sky at the end of evening twilight.
Mike Bradley, Past President, Sunshine Coast Centre RASC
If you haven’t seen comet Lovejoy yet its putting on its best show now and during the upcoming moonless nights. Its up pretty early now and is now above Orion, not below.
I saw it last night through a foggy sky in my 70mm binos and it was very bright, large and diffuse. I would think it would be an easy naked eye object from the sunshine coast on a clear evening.
*** TIP If cloudy check outside every half an hour as this current weather pattern seems to offer short breaks of clear sky and then back to cloudy conditions…
Sunshine Coast Centre RASC
I have attached an updated finder chart for Comet Lovejoy. It is higher and brighter and should now be much easier to find. If you know Orion use some of its brighter stars to form an alignment with the Comet. The moon is a bit of an issue at the moment and I haven’t tried it for a couple of days but I will try tonight and pass along my results. I suspect it should be visible in binoculars in spite of the moon.
Sunshine Coast Centre RASC member