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About this Object
Object Name:
M106, NGC 4258
Object Description:
Active Spiral Galaxy
Positions (J2000):
R.A. 12h 18m 57s.5
Dec. +47° 18' 14"
.29
Constellation:
Canes Venatici
Distance:
23.5 million light-years (700,000 pasecs)
About the Data
Note:
Ground based image data provided by R. Gendler and J. GaBany was used to fill in or supplement areas where HST data did not exist or was limited. 
Data Description:
The image was created from Hubble data from proposal 11570: PI A. Riess (STScI) and collaborators. Other ACS and WFPC2 datasets from various other proposals were used to augment this proposal's data. 
Instruments:
ACS, WFPC2, WFC3/UVIS
Filters:
F435W (B), F555W (V), F606W (V), F656N (H-alpha), and F814W (I)
About this Image
Credit:
NASA, ESA, the Hubble Heritage Team (STScI/AURA), and R. Gendler (for the Hubble Heritage Team)
Release Date:
February 5, 2013
Color:
This image is a composite of separate exposures acquired by various Hubble instruments and ground-based telescopes. Several filters were used to sample various wavelengths. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are:
ACS: F814W (I) luminosity
ACS: F814W (I) red
WFC3: F814W (I) red
WFPC2: F656N (H-alpha) red
ACS: F555W(V)+F606W (V) green
WFC3: F555W (V) green
ACS: F435W (B) blue
Orientation/Scale: