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Contains:  NGC 5195, Whirlpool galaxy, M 51, NGC 5194
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M 51- High resolution and deep field with Newton 350

Acquisition type: Lucky imaging

Technical card

Resolution: 3185x2431

Dates:April 21, 2017June 3, 2019

Frames:
45x180" (gain: 300.00) -15C bin 1x1
7000x1" (gain: 500.00) bin 1x1
38x90" -15C

Integration: 5.1 hours

Darks: ~46

Avg. Moon age: 12.10 days

Avg. Moon phase: 14.76%

Temperature: 18.00

Astrometry.net job: 2736137

RA center: 202.477 degrees

DEC center: 47.212 degrees

Pixel scale: 0.484 arcsec/pixel

Orientation: 71.123 degrees

Field radius: 0.270 degrees

Locations: GIMEUX, GIMEUX, CHARENTE, France

Data source: Backyard

Description

M 51 high resolution picture using Lucky Imaging and deep field using normal exposures.

High lights : 7000 x 1 sec. with ASI 290 MM
Medium lights and core colors : ASI 1600 MCC 38 x 90sec. (2017)
Field and extensions : ASI 294 MC Pro : 45 x 180 sec.

In the last version, the 2000 best Lucky Imaging frames have been isolated (version F) and a highpass filter has been Added using it on the full image.

Clear skies.

JF

Comments

Author

jeffbax
Jeffbax Velocicaptor
License: None (All rights reserved)
216522
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Revisions

D

Minor correction of color gradient on bright stars and color calibration.

E

Background set to 28 (+ 5) to get the faintest objects in the field.

F

2000 best ASI 290 MM pictures (1 sec. exposure).

G

USing frame F for a highpass filter. Details in the high lights increased.

H

A few Ha Added. Thanks to Alain Lafont who proposed me this layer after seeing my image on Astrosurf forum. Taken with his Newton SW 254/1000. Camera ASI183 MM 11 x 120s binning 2. Tha layer couldn't be used for lumlnance because of a high resolution and noise difference. It has been mixed only for color. JF

Sky plot

Sky plot

Histogram

M 51- High resolution and deep field with Newton 350, 





    
        

            Jeffbax Velocicaptor