Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: The Thing on Feb 18, 2023, 15:24:28

Title: The Whale and the Hockey Stick, NGC 4631 and NGC 4656 NED01
Post by: The Thing on Feb 18, 2023, 15:24:28
I've done the Whale before with my Meade 8" LX90 SCT but with this scope I had an opportunity to grab both.

Object details underneath for those that want to know.

Acquisition: N.I.N.A. 69x240s= 4.6 hours Gain 120 Offset 4 Temp -5C
Pixinsight: WBPP, autocrop, ABEsubtract, ABE division, Dust Donut Removal,  EZdecon, repeat Dust Donut Removal, EZDnoise, GSH colour, CT
Affinity: Clarity with mask, Astrophoto - Background Removal
Image date, time and location: 2023-02-12, Manche, France
Telescope aperture and focal ratio: TS1506UNC, TSGPU Coma Corrector, f4 Fl 602mm
Camera and filters used: ZWO ASI294MC Pro, Svbony UVIR
   


Click here for Full Size
(http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/normal_WhaleHockey_autocrop_ABEsub_ABEdiv_LS_EZdecon_LS1_EZDnoise_GSHcol_CT.jpg) (http://gallery.orpington-astronomy.org.uk/albums/userpics/10050/WhaleHockey_autocrop_ABEsub_ABEdiv_LS_EZdecon_LS1_EZDnoise_GSHcol_CT.jpg)

NGC 4631 Galaxy
Magnitude: 9.47
Surface brightness: 22.44
Dimension: 14.4 x 2.2 '
Position angle: 86
Class: SBcd
Common name: Whale Galaxy
Constellation: Canes Venatici

NGC 4656 NED01
Information from catalog: ONGC
Magnitude: 9.82
Surface brightness: 20.62
Dimension: 6.5 x 0.7 '
Class: SBm
Common name: Hockey Stick
Constellation: Canes Venatici
Title: Re: The Whale and the Hockey Stick, NGC 4631 and NGC 4656 NED01
Post by: Roberto on Feb 20, 2023, 15:37:03
Excellent pair.  These are great looking galaxies - so full of structure.

Roberto
Title: Re: The Whale and the Hockey Stick, NGC 4631 and NGC 4656 NED01
Post by: Carole on Feb 20, 2023, 21:18:45
Well done Duncan. 

Carole