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 Constellation Guide ANDROMEDA

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scopeman

scopeman

Posts : 116
Join date : 2011-08-23

PostSubject: Constellation Guide ANDROMEDA   Fri Aug 26, 2011 5:29 pm

Andromeda - Princess, and daughter of Cassiopeia



Pronounced "And - Rom - Eh - Da"



Where to find the constellation









Constellation Chart









The beautiful Princess Andromeda, rescued by the hero Perseus, when her mother and father, Queen Cassiopeia, and King Cepheus tried to sacrifice her to the sea-beast.

The real showpiece object here is the Great Andromeda Galaxy, M31 - Even larger than our own Milky Way galaxy, and also the closest major galaxy to us, means it is enormous through the eyepiece.

Much larger than the full-Moon, but this means that it's light is also very diffuse, making it only a naked-eye object from a reasonably dark site - however, almost any binoculars will show at least it's bright central core.

From a very dark site, in October 2006, this thing almost filled the field of view through my 15x70 binoculars.

M32 and M110, are two small 'satellite' oval galaxies of M31 - also possible to see with binocs.

Two smaller galaxies, ngc404 and ngc891, are possible to see with beginner's equipment - two open clusters, one of them very large - the 'Blue Snowball' planetary nebula - and the striking, colourful double star Almach.





M31

A HUGE object - much larger than the field of view used for all the other Messier objects





and here it is (portion) to same scale as other Messiers listed here





M32

Brighter of M31's two satellite galaxies





M110

Larger, but dimmer , of M31's satellite galaxies





ngc404

Small, dim galaxy. A REAL challenge for amateur scopes, mainly because it is nestled so close to the bright star Mirach (for this reason, it also gets called 'Mirach's Ghost')

The glare from Mirach makes it really difficult to pick this one out visually.





ngc891

Very nice edge-on galaxy - quite widee too, but because it's so wide, it's light is spread out, making it also very diffuse.

Larger aoerture, or dark sky required





ngc752

Very large, spread-out open cluster. Reasonably bright, but again, it's so spread out that it is very diffuse - about 60 stars, brightest of which is around 9th magnitude.



ngc7686

Moderate-sized open cluster - visible in binoculars - easy in almost any telescope



ngc7662

The Blue Snowball - small, but fairly bright planetary nebula - will look like an out of focus star until you crank up the magnification - blue colour only really shows up in photographs.





Almach

Very nice colour-contrasting double star - similar colours to Albireo, but a tighter split.

Yellow, mag 2.3 - Blue, mag 5 - seperation 10 arcsec







Andromeda NGCs (with magnitudes) - from my own "1200 Northern NGCs" list

For those with 'GoTo' or a good chart

205 - Gal - 7.9 (m110)

214 - Gal - 12.3

221 - Gal - 8.1 (m32)

224 - Gal - 3.4 (m31)

266 - Gal - 11.6

404 - Gal - 10.3

752 - OC - 5.7

812 - Gal - 11.2

891 - Gal - 9.9

7640 - Gal - 11.3

7662 - PN - 8

7686 - OC - 5.6
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astrolover

astrolover

Posts : 95
Join date : 2011-08-23
Age : 30

PostSubject: Re: Constellation Guide ANDROMEDA   Fri Aug 26, 2011 6:06 pm

Nicely put together again, there is so much to see in this constellation many a night ive just spent hours (Average 7) just scanning around it in awe cheers
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Clive_D



Posts : 36
Join date : 2011-08-23

PostSubject: Re: Constellation Guide ANDROMEDA   Fri Aug 26, 2011 6:07 pm

Excellent post - I know I will use it.

Thanks!
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TomK

TomK

Posts : 58
Join date : 2011-08-23

PostSubject: Re: Constellation Guide ANDROMEDA   Fri Aug 26, 2011 6:08 pm

I will definitely be using this one!

Many thanks for making this so easy to understand as well.
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astro_alan

astro_alan

Posts : 37
Join date : 2011-08-23
Age : 38

PostSubject: Re: Constellation Guide ANDROMEDA   Fri Aug 26, 2011 6:08 pm

That was a very interesting post for sure, and one I will keep going back to for information.
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