Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  NGC 5229  ·  Whirlpool Galaxy
M51 and NGC 5198 tidal tail, David Wills (PixelSkiesAstro)
M51 and NGC 5198 tidal tail
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M51 and NGC 5198 tidal tail

M51 and NGC 5198 tidal tail, David Wills (PixelSkiesAstro)
M51 and NGC 5198 tidal tail
Powered byPixInsight

M51 and NGC 5198 tidal tail

Equipment

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Acquisition details

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Description

Captured at PixelSkies, Castillejar, Spain 

www.pixelskiesastro.com

Located south of the Whirlpool Galaxy, NGC 5198 is a seemingly ordinary elliptical galaxy discovered in 1787 by William Herschel. Deep images however reveal a recently discovered tidal tail in addition to an outer tidal shell. The length of the tidal tail is approximately 300,000 light-years and is the remains of a small galaxy that has been absorbed by NGC 5198. The linear nature of the tidal tail is indicative of a recent collision with a previous companion or satellite galaxy, which has been tidally disrupted by the larger galaxy.

Lum 139 x 300s
Red 57 x 300s
Green 81 x 300s
Blue 81 x 300s
Ha 78 x 300s

36 Hours 20 mins in total.

Equipment used:

Telescope: Takahashi Baby Q FSQ-85ED F3.9

Camera: Xpress Trius SX-694 Pro Mono Cooled to -20C

Image Scale: 2.08

Guiding: OAG

Filters: Astronomik Lum, Red,Green,Blue,Ha

Mount: iOptron CEM60 "Standard" GOTO Centre Balanced Equatorial Mount

Image Acquisition: Voyager

Observatory control: Lunatico Dragonfly

Stacking and Calibrating: Pixinsight

Processing: Pixinsight 1.8, Photoshop CC, StarXTerminator, StarNet v2, NoiseXTerminator, BlurXTerminator

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