Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4485  ·  NGC 4490
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NGC 4490, a LRGB picture, Niels V. Christensen
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NGC 4490, a LRGB picture

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Description

A LRGB picture of the NGC 4490 galaxy.

The below text taken from here:

https://www.cloudynights.com/topic/318388-april-2011-challenge-entries-ngc-4490/#entry4078202

The picture was taken during two nights, 08 april 2011 and 10 april 2011 in Copenhagen Denmark.

Telescope: Meade LX200ACF 16". Mount: Ken Milburn wedge, Camera: SBIG ST-8XME, Reducer: Lepus 0.62X

Guiding: Via Individual ED70/SBIG STL 237H CCD using CCDSoft.

Exposure: RGB each channel 12*5min and LUM 12*5min+16*10min.

Filters: 2" IDAS LPS and 1.25" LRGB astronomik.

Preprocessed, and stacked in CCDStack2 using dark, flat, dark-flat and bias frames.

Further processed in Adobe PhotoShop CS4.

My home build observatory is placed in my front yard/in the "red light" polution zone, have a look here,

Red Zone

Kind regards Niels

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NGC 4490, a LRGB picture, Niels V. Christensen