Thursday, March 28, 2013

I will attempt to photograph the comet again Thursday morning if the sky is clear and I wake up early enough.

The comet will still be not quite high enough to get good photos and clouds could interfere.

My first photos from yesterday were when the comet was about 1 degree lower than it would be today.

Look at the Altitude figures in the two charts below.

As you can see the comet will be approximately one degree higher over the horizon at the same time of roughly 6:20am.

This means I may have a little more time with a little darker sky to see the comet, or rather photograph the comet. It's still likely impossible to see because the c14 won't be able to see it easily in the sky.

The c14 may show it, if the mount is accurate enough and we can center it, but unfortunately we may have to wait forty more minutes if we think about the relative position of the bigger telescope. That lower position means the comet will have to be ten degrees higher. Or we can wait about forth minutes. But forty minutes later is close to 7:30 when the sun will be rising. That means the sky will be very bright.

Looking at a 4 magnitude dim star in almost complete daylight will likely not show much detail, certainly not the tail once the sun is that high.

So it's highly likely that if the comet is moving say one degree a day or slightly quicker, it may be a week or more before it's a good morning target for the c14 and by that time it will be much dimmer.

The difference in magnitude can also be seen in the charts below.










I'll post a chart next for Thursday morning.

These are from Sky Safari, an app for the iPad I highly recommend.


Posted using BlogPress from my iPad

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