Bill Richards
Well-Known Member
The Silver Sliver Galaxy (aka NGC 891) is a beautiful example of an edge-on spiral galaxy about 30 million light-years away.
The next image is uncropped and has been annotated, highlighting many other galaxies in the frame. I don't know if the forum supports this, but when you zoom way in on the image, you can see even more distant galaxies.
This is the result of over 4.25 hours of exposure time taken on 2025-12-18 and 2026-10-09.
Equipment and Software:
=======================
Mount: 10Micron GM1000HPS w/PoleMaster
Telescope: Celestron EdgeHD 8 w/0.7x focal reducer
Auto-Focuser: Rigel Systems nFOCUS
Imaging Camera: ASI2600MC-Duo
Guide Camera: ASI174MM-Mini on OAG
Imaging S/W: NINA
Guiding S/W: PHD2
Image Processing S/W: PixInsight
Exposure Details:
=================
Camera Temperature -15C
Bias: 50
Gain: 100
85 x 180s
Plus 32x Darks, Flats, and Dark Flats
#SilverSliverGalaxy #NGC891 #amateurastrophotography #astronomy #astronomydaily #astronomyphotography #astrophotography #cosmos #deepsky #deepskyobject #galaxy #longexposure #nightphotography #nightsky #outerspace #photography #science #space #spacephotography #stargazing #stars #telescope #universe
The next image is uncropped and has been annotated, highlighting many other galaxies in the frame. I don't know if the forum supports this, but when you zoom way in on the image, you can see even more distant galaxies.
This is the result of over 4.25 hours of exposure time taken on 2025-12-18 and 2026-10-09.
Equipment and Software:
=======================
Mount: 10Micron GM1000HPS w/PoleMaster
Telescope: Celestron EdgeHD 8 w/0.7x focal reducer
Auto-Focuser: Rigel Systems nFOCUS
Imaging Camera: ASI2600MC-Duo
Guide Camera: ASI174MM-Mini on OAG
Imaging S/W: NINA
Guiding S/W: PHD2
Image Processing S/W: PixInsight
Exposure Details:
=================
Camera Temperature -15C
Bias: 50
Gain: 100
85 x 180s
Plus 32x Darks, Flats, and Dark Flats
#SilverSliverGalaxy #NGC891 #amateurastrophotography #astronomy #astronomydaily #astronomyphotography #astrophotography #cosmos #deepsky #deepskyobject #galaxy #longexposure #nightphotography #nightsky #outerspace #photography #science #space #spacephotography #stargazing #stars #telescope #universe
