7640 is a barred galaxy close to edge-on - SB(s)c. It lies in a relatively dense foreground star field along with some faint cirrus. NGC
7640 is about 26 million light years distant by Tully-Fisher estimate and about 26.8 million light years (by redshift estimate).
There are a number of background galaxies - one identified by PGC ID others by 2MASS - none have distance estimates. There are a number of other visible background galaxies, but they are only identified as IR sources. The visible Quasars are are from 4.279 to 9.165 billion years (Lookback or light travel time).
Image and details can be accessed at the link below (or by clicking on the image crop below). The annotated image has a link below but it can also be accessed from the main image webpage as well - or seen on astrobin. The full FOV
image can be accessed from the image webpage and has an image scale of about 0.59 arcsec/pixel.
NGC 7640 Region Annotated
Images also available on astrobin - https://www.astrobin.com/l3tw9y/
Scope: Celestron 9.25 Edge HD 235 mm at f/7
Camera: ASI294MM (Baader LRGB Filters)
Location: DAA Observatory, Shelter Valley, CA
David Levy Maksutov Newtonian, Celestron Edge 9.25, FSQ-106N Refractor (on loan), WO ZenithStar 66 APO Refractor, WO Megrez II APO, Sigma 150 mm EOS Lens
Losmandy G11/Gemini, iOptron GEM45, Celestron Advanced VX, iOptron CEM70
ST8300M Camera, Atik 383L, Canon 350D (IR cut modified), ASI1600M, ASI294M, ASI260M
Observatory - Desert Astronomy Association
(Shelter Valley, CA)