Arp 135 / NGC 1023

Designation(s)Arp 135, NGC 1023
Object Type(s)Galaxy
Relevant Catalog(s)All (Chron), Arp, NGC
Arp CategoryGalaxies with nearby fragments
Obs. Lat/Long42° 17', 073° 57'
ConstellationPerseus
Date and Time Observed2024-03-13 11:09:27
Instrument8" EdgeHD SCT
CameraASI294mc-Pro
Image DetailsUp is 92.3 degrees E of N. Total integration time was 25m 30s. Exposures 30s@305g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding..
DescriptionFirst observation of the evening starting with Astronomical Dusk. Altitude just under 40° at start. This is a relatively large and bright object that appeared almost immediately in SharpCap. I stayed on it as long as needed to clearly see the bulge at the bottom which is NGC 1023A merging into it; the enhanced version of the image makes this obvious, though increases noise. Note Arp comparison is rotate 180° to match Arp's original image.
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