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NGC 7331 Spectra

Technical card

Imaging telescope or lens: SkyWatcher Newton 150-750

Imaging camera: Atik 314L+

Mount: Sky-Watcher HEQ5

Guiding telescope or lens: SkyWatcher Newton 150-750

Guiding camera: Atik 314L+

Software: Astrobodger Bass v1.8.2

Filter: Shelyak Instruments Alpy 600

Resolution: 1400x500

Dates: Aug. 12, 2016

Frames: 2x1200"

Integration: 0.7 hours

Avg. Moon age: 8.95 days

Avg. Moon phase: 66.40% job: 1238367

Locations: OHP, Observatoire de Haute Provence, Haute Provence, France


Observed NGC 7331 spectra versus reference spectra.
Doppler shift shows a redshift (z) = 0.00238
Galaxy velocity = 714 km/s + earth velocity correction13km/s.
Using Hubble constant 71km/s/Mpc we do have here a distance of D=V/H D=10,25 Mpc
in LY = 33,4 million Light years away.

NED database references



Stephane Neveu


NGC 7331  Spectra, 


        Stephane Neveu