NGC 4565, the Needle Galaxy

Posted: May 30th, 2024

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Technical Info

Telescope/Lens: SHARPSTAR 130/2.8

Camera: ZWO ASI 2600 MC

Mount: Ioptron HAE 29

Guide Scope: ZWO 30F4

Guide Camera: SVBONY SV 905 C

Software: SharpCap 4.0, Siril, Adobe Photoshop

Exposure:

120 x 60" ISO/Gain: 160

Orange zoneLight Pollution:

Petushki Vladimirskaya Oblast, Russia

May 30th, 2024

NGC 4565, THE NEEDLE GALAXY

Telescope/Lens: SHARPSTAR 130/2.8
Camera: ZWO ASI 2600 MC
Mount: Ioptron HAE 29
Guide Scope: ZWO 30F4
Guide Camera: SVBONY SV 905 C
Software: SharpCap 4.0, Siril, Adobe Photoshop

Petushki Vladimirskaya Oblast, Russia
Light Pollution: Orange zone

Exposure:
120 x 60" ISO/Gain: 160

Two photographs of NGC 4565 (the Needle Galaxy) are grouped together. They are absolutely identical in all parameters except for the astronomy cameras used. One was taken with a ZWO 2600 MC camera (pixel size 3.76 µm), the other with a ZWO 183 MC (pixel size 2.4 µm). The image with the smaller pixel shows more detail, and the galaxy itself appears almost twice as large. The image with the 3.76 µm pixel has less noise, but not significantly. For short-focus telescopes (mine is a SharpStar 130 f/2.8, 364 mm), in my amateur opinion, a small-pixel camera is more suitable. Resolution for 2.4 µm is 1.4 arcseconds per pixel. Resolution for 3.76 µm is 2.16 arcseconds per pixel. There is a formula available online for calculation.

Original size: https://deepskyhosting.com/k96NJ6q
Author: Ryjov Aleksey

2 h 0 m

1307

Two photographs of NGC 4565 (the Needle Galaxy) are grouped together.
They are absolutely identical in all parameters except for the astronomy cameras used.
One was taken with a ZWO 2600 MC camera (pixel size 3.76 µm), the other with a ZWO 183 MC (pixel size 2.4 µm).
The image with the smaller pixel shows more detail, and the galaxy itself appears almost twice as large.
The image with the 3.76 µm pixel has less noise, but not significantly.
For short-focus telescopes (mine is a SharpStar 130 f/2.8, 364 mm), in my amateur opinion, a small-pixel camera is more suitable.
Resolution for 2.4 µm is 1.4 arcseconds per pixel.
Resolution for 3.76 µm is 2.16 arcseconds per pixel.
There is a formula available online for calculation.

Resolution: 5498x3671 px

Scale: 18534 KB

Ryjov Aleksey

194

Current photo Updated

NGC 4565, Галактика Игла

30 May, 2024

2 h 0 m

Сгруппированы две фотографии NGC 4565 (Игла) Абсолютно идентичные по всем параметрам, кроме астрокамер Одна снята на астрокамеру ZWO 2600 MC (размер пикселя 3,76 мкм), другая на ZWO 183 MC (разме...