The HDF "Hayes Deep Field" ;-) - Virgo Cluster - Warning a

[Whitters]

A Chart from Guide 8 showing stars to appx mag 16.5



Full size imagehttp://homepage.ntlworld.com/paul_whitmarsh/Astronomy/Images/MX916/April_11_2004/VirgoMap.png




Now the image, 300mm at f2.8. three images eaxh 10 x 120seconds ha filter
Full size imagehttp://homepage.ntlworld.com/paul_whitmarsh/Astronomy/Images/MX916/April_11_2004/Virgo_Cluster_1a.png
Full size image processed by Greg, Thanks Greg http://homepage.ntlworld.com/paul_whitmarsh/Astronomy/Images/MX916/April_11_2004/VirgoMapgreg_a.jpg

[ This Message was edited by: Whitters on 2004-04-17 00:43 ]

(IMG tags changed to URL tags in interests of legibility.)

[ This Message was edited by: Rick on 2004-04-21 13:23 ]

[ This Message was edited by: Whitters on 2004-04-21 22:28 ]

[Mike]

Right that's it....... Your just showing off now !! Stop it !

[Rocket Pooch]

All hail Paul king of fuzzies!!!!

God lord thats good.  One question, last night the seeing was poor for planetary imaging, I thought about getting the SAC out and playing with it bacause I could see a lot of stars.  

The question is (remember I'm a newbie) is that the difference between seeing as in the detail and transparency as in the amount you can see?

[Whitters]

Chris,
As you have already worked out poor seeing, boiling atmousphere, means that you are unable to record fine detail. So no good for planetary or double star observing. Deep sky objects are usualy of a larger angular size (take up a larger amount of sky) and don't loose so much in poor seeing. Transparency is usualy affected by aerosoles in the air, which reflects the artificial light back to Earth, thereby making the whole sky brighter, and in some cases as bright or brighter than the object you want to observe, rendering it invisible. Less aerosole less back scatter, the artificial light is still there but radiating into space.

[Mike]

The amount of objects in these images is staggering. Paul the images you have been generating since having the secondary recoated are just awesome !!

[Whitters]

Mike,
I have got into the 40's with the number of galaxies I have identified over the three images. This wasn't taken with the C8 but with the 300mm camera lens.
I havn't started with the C8 yet;-)

[Mike]

What !!??? My god !! I hate to imagine then !!

[Whitters]

Objects identified so far. detail from NGC2000.0
Obj_Name   RA   Dec   Magnitude   Angular_Size   Type_Desc   Constellation_name
IC3303   12h 25.2m    +12¢ª 43'       1.4'   Galaxy   Virgo
IC3432   12h 30.4m    +14¢ª 10'    15   0.6'   Galaxy   Coma Berenices
IC3442   12h 31.3m    +14¢ª 7'       1.5'   Galaxy   Coma Berenices
IC3457   12h 31.9m    +12¢ª 39'       1.6'   Galaxy   Virgo
IC3475   12h 32.7m    +12¢ª 46'    13.3   2.6'   Galaxy   Virgo
IC3476   12h 32.7m    +14¢ª 3'    12.7   2.2'   Galaxy   Coma Berenices
IC3478   12h 32.7m    +14¢ª 12'       1.3'   Galaxy   Coma Berenices
IC3486   12h 33.2m    +12¢ª 52'       '   Unidentified at the place given, or type unknown   Virgo
IC3492   12h 33.2m    +12¢ª 51'    15   '   Galaxy   Virgo
IC3583   12h 36.7m    +13¢ª 15'    14   2.2'   Galaxy   Virgo
M84   12h 25.1m    +12¢ª 53'    9.1   5'   Lenticular (S0) Galaxy   Virgo
M86   12h 26.2m    +12¢ª 57'    8.9   7.5x5.5'   Lenticular (S0) Galaxy   Virgo
M87   12h 30.8m    +12¢ª 24'    8.6   7'   Elliptical Galaxy   Virgo
M88   12h 32m    +14¢ª 25'    9.6   7x4'   Spiral Galaxy   Coma Berenices
M89   12h 35.7m    +12¢ª 33'    9.8   4'   Elliptical Galaxy   Virgo
M90   12h 36.8m    +13¢ª 10'    9.5   9.5x4.5'   Spiral Galaxy   Virgo
M91   12h 35.4m    +14¢ª 30'    10.2   5.4x4.4'   Spiral Galaxy   Coma Berenices
NGC4387   12h 25.7m    +12¢ª 49'    12   1.9'   Galaxy   Virgo
NGC4388   12h 25.8m    +12¢ª 40'    11.1   5.1'   Galaxy   Virgo
NGC4402   12h 26.1m    +13¢ª 7'    11.7   4.1'   Galaxy   Virgo
NGC4407   12h 26.3m    +12¢ª 39'       '   Object called nonexistent in the RNGC (Sulentic and Tifft 1973)   Virgo
NGC4425   12h 27.2m    +12¢ª 44'    11.9   3.4'   Galaxy   Virgo
NGC4431   12h 27.5m    +12¢ª 18'    12.8   2'   Galaxy   Virgo
NGC4435   12h 27.7m    +13¢ª 5'    10.9   3'   Galaxy   Virgo
NGC4436   12h 27.7m    +12¢ª 19'    13.1   1.9'   Galaxy   Virgo
NGC4438   12h 27.8m    +13¢ª 1'    10.1   9.3'   Galaxy   Virgo
NGC4440   12h 27.9m    +12¢ª 18'    11.8   2'   Galaxy   Virgo
NGC4458   12h 29m    +13¢ª 15'    12.1   1.9'   Galaxy   Virgo
NGC4461   12h 29m    +13¢ª 11'    11.2   3.7'   Galaxy   Virgo
NGC4473   12h 29.8m    +13¢ª 26'    10.2   4.5'   Galaxy   Coma Berenices
NGC4476   12h 30m    +12¢ª 21'    12.3   1.9'   Galaxy   Virgo
NGC4477   12h 30m    +13¢ª 38'    10.4   4'   Galaxy   Coma Berenices
NGC4478   12h 30.3m    +12¢ª 20'    11.2   2'   Galaxy   Virgo
NGC4479   12h 30.3m    +13¢ª 35'    12.5   1.8'   Galaxy   Coma Berenices
NGC4486A   12h 30.8m    +12¢ª 16'    8.6   7.2'   Galaxy   Virgo
NGC4486B   12h 30.8m    +12¢ª 29'    8.6   7.2'   Galaxy   Virgo
NGC4506   12h 32.2m    +13¢ª 25'    14   1.6'   Galaxy   Coma Berenices
NGC4516   12h 33.1m    +14¢ª 34'    14   1.9'   Galaxy   Coma Berenices
NGC4531   12h 34.3m    +13¢ª 5'    13   3'   Galaxy   Virgo
NGC4550   12h 35.5m    +12¢ª 13'    11.6   3.5'   Galaxy   Virgo
NGC4551   12h 35.6m    +12¢ª 16'    11.9   2'   Galaxy   Virgo
NGC4571   12h 36.9m    +14¢ª 13'    11.3   3.8'   Galaxy   Coma Berenices