IC 4628 Prawn Nebula

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Startrek
Posts: 138
Joined: Mon Dec 30, 2019 3:49 am

IC 4628 Prawn Nebula

Post by Startrek »

Captured the Prawn Nebula for only the second time under Bortle 8 City suburban skies ( Southern Hemisphere)
No moon

6” f6 GSO Newt
Skywatcher EQ6-R pro mount
ZWOASI2600MC cooled to -10C , Gain 100 LRN
Optolong L Extreme filter
TS GPU coma corrector
68 x 2 minute dithered guided subs
40 x Flats
50 x Bias
EQMOD, Stellarium, APT
PHD2 Multistar guiding ( 0.55 to 0.65 are sec error total)
Stacked in DSS
Processed in Startools V1.7 Compose OSC Bi Color SHO

Comments welcome
Thanks
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Troy Galebach
Posts: 39
Joined: Fri Dec 28, 2018 8:31 pm

Re: IC 4628 Prawn Nebula

Post by Troy Galebach »

Very nice Startrek. If I ever get clear weather here, I might just try the same target, though I don't use filters.
Good job!

Regards,
Troy
Startrek
Posts: 138
Joined: Mon Dec 30, 2019 3:49 am

Re: IC 4628 Prawn Nebula

Post by Startrek »

Thanks Troy
I think this nebula is primarily a Southern Hemisphere object but it may be high enough for you to image in the Northern hemisphere ?
As this object is so dim, it’s not very interesting when imaged in broadband RGB ( unless you have a big scope +10” ) to pick up faint detail
Those nebulosity clouds would not appear so dynamic if imaging in broadband RGB. Narrowband imaging provided another level of detail as it only captures the specific wavelengths Ha , Oiii and Sii emitted from the object.Maybe invest in a OSC narrowband filter like the L enhance or L Extreme ( I use the L Extreme, it’s fantastic)
If it’s high enough please give this object a try !!

Thanks again
Martin
( aka Startrek)
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