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Molecular Cloud MBM 25 (Lynx)


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#1 afesan

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Posted 07 March 2017 - 01:42 PM

Molecular Cloud MBM 25 ( Lynx) * February 2017 * ASA N12 astrograph (f/3,6 1081mm) * DDM85 mount * G3 16200 Moravian * LRGB Baader filters * All subframes unguided - acquired with Sequence & Autoslew * L: 384min R:216min G:156 min B:232min *

 

 

MBM 25 is a very diffuse molecular cloud that covers practically the whole image, extending in the constellation of the Lynx. These molecular clouds, also referred to as flow nebulae or galactic cirrus, are made up of gigantic dust and gas clouds of very low density (estimated to be between 25-50 particles per cubic centimeter), basically H and CO. They belong to our own galaxy but are located in high latitudes galactic, that is, above and below the main disk or galactic plane of the Milky Way. They are at distances of the order of thousands or tens of thousands of light years, much closer that distant galaxies that glows in the background (in this case, literally hundreds of them in the background) and whose vision and light filter us by getting in our visual. The dust disperses the blue light and reinforces a broad spectrum of red light, known effect known as "ERE "(Extended Red Emission). This sensibly attenuates blue glimpses and enhances the reds in visual images. These structures were first detected in 1984 by the infrared IRAS satellite and later studied in depth by Magnani, Blitz and Mundy constituting the MBM catalog. Credits: Wikipedia,Steve Mandel,Ignacio de la Cueva.

 

MBM 25 (Lynx)
 
 
 
73´s !

Best regards:
Antonio
Spag-Monfrague Remote Observatory
http://afesan.es

#2 MarkS

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Posted 08 March 2017 - 12:59 PM

Unusual subject, Antonio. The cloud is very well caught - interesting image!

 

(Love the camera :) )

 

Mark



#3 afesan

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Posted 08 March 2017 - 04:44 PM

Me love the camera too,Mark. I´m trying to improve some minor adjustments. I have some vignetting and a local turner is on the work of an adapting piece ( greater than the Moravian adapter).Even with the Moravian´s native adapter I had vignetting problems. Curious,

BTW: Required assistance from ASA in order to fix some minor software focuser problems. Fast response and will have a remote session in next weeks ..when I can install in the remote observatory all required hardware.

Thanks!


Edited by afesan, 08 March 2017 - 04:45 PM.

Best regards:
Antonio
Spag-Monfrague Remote Observatory
http://afesan.es

#4 MarkS

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Posted 09 March 2017 - 12:35 AM

Antonio,

 

Re vignetting: I calculated that for the Wynne corrector you need at least 49mm diameter clearance due to the f/3.6 focal ratio and the position of the adapter. So I had a new camera nosepiece and matching adapter made with 54mm diameter thread and 49mm inside clearance. This worked.

 

Mark






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