Tag Archives: NGC 4258

Spiral galaxy Messier 106, NGC 4258


Messier 106 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy. Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. NGC 4217 is a possible companion galaxy of Messier 106.

Imaging telescopes or lenses: Gso RC 10″ GSO
Imaging cameras: FLI MicroLine 8300 CCD-camera FLI
Mounts: Astro-Physics Mach1AP GTO with GTOCP3
Guiding telescopes or lenses: 90mm Guidescope Guidescope
Focal reducers: Astro Physics CDDT67
Software: Photoshop CS 6 Photoshop CS6, Pixinsight 1.8
Filters: Baader 2″ Green,  Baader 2″ Blue, Baader 2″ Red,  Baader 2″ Lum
Accessories: Starlight Xpress lodestar 2
Resolution: 3084×2058
Dates: April 20, 2015
Baader 2″ Blue: 10×300″ -35C bin 2×2
Baader 2″ Green: 9×300″ -35C bin 2×2
Baader 2″ Lum: 14×600″ -35C bin 1×1
Baader 2″ Red: 10×300″ -35C bin 2×2
Integration: 4.8 hours
Avg. Moon age: 1.37 days
Avg. Moon phase: 2.09%
RA center: 184.756 degrees
DEC center: 47.297 degrees
Pixel scale: 0.767 arcsec/pixel
Orientation: -5.667 degrees
Field radius: 0.395 degrees
Locations: Home Observatory, Home, Worcestershire, United Kingdom
Author: Patrick (Paddy) Gilliland

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M106 in Canes Venatici

99b618b064d4d26186ffd743ea941d9b.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright Emiel Kempen
Messier 106
 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchainin 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy. Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. NGC 4217 is a possible companion galaxy of Messier 106.

Imaging telescopes or lenses: Telescope Services 10″ F/4 Carbon Imaging Newton
Imaging cameras: SBIG ST-10XME
Mounts: Sky-Watcher HEQ6 Pro
Guiding telescopes or lenses: Teleskop-Service 8×50 Finderscope
Guiding cameras: Lodestar Autoguider
Focal reducers: Baader Planetarium MPCC
Software: Steve Brady Larry Weber FocusMax, Pleiades Astrophoto PixInsight Core 1.8, CCDWare CCDAutoPilot 5, Diffraction Limited MaximDL 5, Software Bisque, Cynogen, TheSkyX Professional Edition, Adobe Photoshop CS5, CCDWare CCD Inspector
Frames: 70×339″
Integration: 6.6 hours

Author: Emiel Kempen
AstroPhotography of the day by SPONLI 21 Aug 2014 

M106 Across the Spectrum 


Image Credit: X-ray – NASA / CXC / Caltech / P.Ogle et al.,
Optical – NASA/STScI, IR – NASA/JPL-Caltech, Radio – NSF/NRAO/VLA

 The spiral arms of bright, active galaxy M106 sprawl through this remarkable multiwavelength portrait, composed of image data from radio to X-rays, across the electromagnetic spectrum. Also known as NGC 4258, M106 can be found toward the northern constellation Canes Venatici. The well-measured distance to M106 is 23.5 million light-years, making this cosmic scene about 60,000 light-years across. Typical in grand spiral galaxies, dark dust lanes, youthful star clusters, and star forming regions trace spiral arms that converge on a bright nucleus. But this composite highlights two anomalous arms in radio (purple) and X-ray (blue) that seem to arise in the central region of M106, evidence of energetic jets of material blasting into the galaxy’s disk. The jets are likely powered by matter falling into a massive central black hole.

APOD NASA 05-Jul-14