Friday, 24 September 2010

More Moons!!

Moon 240910Moonbig 240910 

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

Moon Mosaic

Moon 22092010a 

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

A True Comparison

    IMG_0188Moon for comparison
M103 FinishedM103
M27 Dumbell FInished in GimpM27 Hercules ClusterM13
M71 Finished in GIMPM71 M45 FInished in GIMPM45
 M57 M57 Double Final Double
Bizibilder has always had a problem knowing just what size celestial bodies actually appear in the sky!  When looking at a photo (which is likely to be taken through some form of optical system and then cropped) one has absolutely no idea how big the objects that you can see actually are!!  So Bizibilder has reproduced these eight pictures here (They can all be seen in posts below).  They are all the full frame shot with no cropping at all, taken with exactly the same optical system – so they should give a good representation of relative size.  Bizibilder has included a photo of the Moon, for comparison, as this is a familiar object to everyone (in terms of its apparent size anyway).

Monday, 6 September 2010

The Double Cluster in Perseus

Double Cluster

 

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).

M103 Cluster in Cassiopeia

M103

 

Yet another star cluster – this time a smallish one in the constellation Cassiopeia.  16 mins exposure.  Number 103 in Messier’s catalogue.

M27 in Vulpecula - The Dumbbell Nebula

M27 Dumbell 2

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

The last subject from last night – M71 Open Cluster

M71 Cluster

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.)

M45 The Pleiades

M45 Pleiades

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

Close up of M57

The RIng Nebula M57

A slightly larger (and I think better!) view of the ring and its central star!

The Ring Nebula M57 in Lyra

The RIng Nebula M57 JPEG

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

Bizibilder’s first Galaxy – M31 in Andromeda

 

M31 Image 1

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).

M31 The Great Andromeda Galaxy

Small 5min M31

Just a taster. This is a single 5 minute exposure of the Galaxy M31 in Andromeda.  Bizibilder spent all night taking pics of this object and intends to process the images in the morning!