Hemisphere:  Northern  ·  Constellation: Leo (Leo)  ·  Contains:  NGC 3628
Getting plate-solving status, please wait...
NGC 3628 the Hamburger Galaxy in Leo, 



    
        

            Mark Wetzel
NGC 3628 the Hamburger Galaxy in Leo
Powered byPixInsight

NGC 3628 the Hamburger Galaxy in Leo

Getting plate-solving status, please wait...
NGC 3628 the Hamburger Galaxy in Leo, 



    
        

            Mark Wetzel
NGC 3628 the Hamburger Galaxy in Leo
Powered byPixInsight

NGC 3628 the Hamburger Galaxy in Leo

Technical card

Imaging telescopes or lenses: Celestron C9.25 Edge HD

Imaging cameras: ZWO ASI 1600MM-Pro Cool

Mounts: Celestron CGEMⅡ

Guiding telescopes or lenses: Celestron C9.25 Edge HD

Guiding cameras: ZWO 174MM Mini

Focal reducers: Celestron 0.7x Focal Reducer

Software: Celestron CPWI  ·  Main Sequence Software Seqence Generator Pro 3  ·  Pleiades Astrophoto PinInsight  ·  Adobe Photoshop CC 2021 Photoshop 2021  ·  PHD 2

Filters: ZWO 36mm Red  ·  ZWO 36mm Green Filter  ·  ZWO 36mm Blue Filter  ·  ZWO 36mm Luminance Filter

Accessory: Celestron OAG


Dates:March 25, 2020March 26, 2020April 13, 2020April 14, 2020

Frames:
ZWO 36mm Blue Filter: 33x180" (1h 39') (gain: 139.00) -10C bin 1x1
ZWO 36mm Green Filter: 40x180" (2h) (gain: 139.00) -10C bin 1x1
ZWO 36mm Luminance Filter: 90x120" (3h) (gain: 139.00) -10C bin 1x1
ZWO 36mm Red: 35x180" (1h 45') (gain: 139.00) -10C bin 1x1

Integration: 8h 24'

Darks: ~50

Flats: ~50

Avg. Moon age: 11.32 days

Avg. Moon phase: 31.21%

Bortle Dark-Sky Scale: 3.00


Basic astrometry details

Astrometry.net job: 4293375

RA center: 11h 20' 19"

DEC center: +13° 35' 16"

Pixel scale: 0.848 arcsec/pixel

Orientation: 317.967 degrees

Field radius: 0.353 degrees


Resolution: 2400x1800

Locations: Home Driveway, Florence, Oregon, United States; Coast Range Remote Site, Walton, Oregon, United States

Data source: Backyard

Description

Florence and Linslaw Point, Oregon
March 25 – April 13, 2020

NGC 3628, the Hamburger Galaxy, was captured with broadband filters, Luminance, Red, Green and Blue. This edge-on galaxy is located in the constellation Leo. NGC 3628, M65 and M66 form the Leo Triplet, three gravitationally interacting galaxies. NGC 3628 is fainter than its companions, which is why Charles Messier missed it. It is about 35 million light years from Earth and is about 113,000 light years across (SkySafari Pro). There is a faint tidal tail of stars in the upper left part of the frame, likely caused by gravitational interactions with M65 and M66. The disk is also highly distorted from these interactions and perhaps from a past merger with another galaxy. There is also a small companion galaxy below the center of NGC 3628.

Since the 2021 galaxy season is beginning and Western Oregon has been suffering endless cloudy and rainy nights, I reprocessed the 2020 data in Pixinsight using my new workflow for handling RGB color and luminance images separately. The image really needs much more luminance and some more R, G and B subframes in order to bring out the elusive tidal tail.

Comments