14 July 2010 Crescent moon at 5.47pm

[h0ughy (David)]

it was windy, cool and low cloud was about but i managed to get a happy snap of the crescent moon.
I tried a HDR - and in hindsight i should have had the tracking working better. taken through the 127ED facing the wind (LOL) with the cooled Canon 40D. Its a ordinary but it does show the earthshine

on another note when do you use king rate, lunar rate, and sidereal rate - especially when the object is getting close to the horizon?

[Mighty_oz (Marcus)]

Nice shot all the same

[h0ughy (David)]

thanks

[Liz]

I like it too.

[erick (Eric)]

Yes, I caught a glimpse between clouds.

I like the shot, David. Well done, given the massive difference between fully lit and earthshine parts. And a couple of stars streaking by as well.

[h0ughy (David)]

thanks Eric and Liz - here is repro1. The colour fringing in this is horrible - thats cheap scopes for you

[astro744]

Solar - Sun
Lunar - Moon
Sidereal - Star, based on single rotation of the Earth 1436.5 minutes.
King - Same as sidereal but takes into account refraction. Used for long exposure deep sky astro-photography.

[Dennis]

Very nicely done Dave! Quite an eerie feeling to it.

Cheers

Dennis

[h0ughy (David)]

Originally Posted by astro744

Solar - Sun
Lunar - Moon
Sidereal - Star, based on single rotation of the Earth 1436.5 minutes.
King - Same as sidereal but takes into account refraction. Used for long exposure deep sky astro-photography.

thanks - i wonder who uses king? solar is interesting?

Originally Posted by Dennis

Very nicely done Dave! Quite an eerie feeling to it.

Cheers

Dennis

thanks Denis - i am not happy with it but gave it a go anyway. apart from the flaring the wind didnt help much