A couple of Moons tonight through broken cloud – these were the best of a dozen or so before the cloud really closed in and it began to rain! Taken with a DSLR and telescope.
Wednesday, 22 September 2010
Bizibilder has just taken this mosaic of the Moon – six pictures joined together to give the whole Moon. The night was very hazy so the quality is poor but it was a useful experiment and the first time Bizibilder had managed a Lunar mosaic – So he is quite chuffed with himself. The Moon is not quite full 99.8% illuminated– you can see the left hand side is still slightly in shadow.
Wednesday, 8 September 2010
| Moon for comparison ||M103|
Monday, 6 September 2010
One of the most famous objects in the night sky but omitted from Messier’s catalogue! The Double Cluster is visible to the naked eye as a smudge – binoculars or a small telescope show these objects well. (20 Mins exposure, 200mm telescope).
Bizibilder seems to be getting better at processing these images (He says with some modesty!). This is Messier’s number 27, commonly known as the Dumbbell Nebula. (20 x 1 min exposures using a 200mm telescope, unguided mount, ISO 1600, for the techies!). This is a similar object to the Ring Nebula a couple of posts back.
Saturday, 4 September 2010
M71 is a cluster of stars in the constellation Saggita (a tiny constellation!). This is 12mins exposure 200mm telescope (rest of techie stuff as below).
(This cluster is considerably smaller in apparent diameter than M13 the Hercules cluster – picture below.)
Another clear night at Bizibilder’s Observatory has resulted in a few more pictures! Above is (part of) the star cluster known as M45 or The Pleiades in the constellation Taurus. This is a naked eye object and most folk can see the six or seven brightest stars (four of them in the picture above). The stars, which are very young, are blue and you can see faint nebulosity (clouds of gas) around each one.
Thursday, 2 September 2010
The Ring Nebula in the constellation Lyra is the result of a star exploding and throwing off a cloud of gas. We see it as a ring (with what’s left of the star in the middle). This object is comparatively small. (In terms of apparent size M31 (below) is about 6 “Moons” long in its entirety, the ring is roughly the same size as a medium sized crater on the moon!). Bizibilder thinks it is a rather pretty object! It is decidedly green/blue to look at.
Techie: 22 Minutes of exposure, ISO 800, 200mm reflecting telescope.
Wednesday, 1 September 2010
Well! This is the processed image – after quite a few problems as Bizibilder is not at all sure how to use the rather complicated software needed to stack 80 x 1minute images and then process something out of them! He feels he has achieved something in the last three hours! The picture represents a total exposure of 1hour 21mins of the Galaxy known as M31 or the “Great Andromeda Galaxy” You can clearly see the central core and some of the surrounding spiral arms and dust lanes. The smudge in the lower right is a second Galaxy M32 which is a satellite galaxy of M31 (ie part of the same system).