Hubble Variable Nebula (ハッブルの変光星雲) NGC 2261

The discoverer of this nebula is Hershel, not Hubble. Nevertheless, the name Hubble is given because Hubble used this nebula for the First Light at Palomar Observatory.
This nebula is a reflection nebula, a nebula that has a bright star in the lower part of the photo and shines in response to the light, but there is a dark nebula around the star, and the luminosity of the star looks different. It seems that this nebula is also changing its altitude accordingly.
Many of the photographs are shown as pure white nebulae, but in reality, the periphery is shining light red as shown in this photograph.
Drizzle Integration

この星雲の発見者はHubbleでは無く、Hershelである。それにも関わらずHubbleの名前がついているのは、パロマ天文台のFirst LightにHubbleがこの星雲を利用したからである。

Drizzle Integration
Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 21.9%)
Date:7th / Feb / 2021 22:25(UTC+7)
TS TSRC10T Carbon Truss Prime Focus (250mm F/8 f/2000mm)
L-Pro 40 SubsX180sec Total 2 hours OSC:RGB
Filter: Optolong L-Pro
Mount :iOptron CEM70G
Guide: ZWO ASI 120MC-S
Guide Scope:SVbony 30mm F/4.0
Controler: ZWO ASIAIR-Pro On iPad, Dither 3 Pixs
Pre-Processing APP (Drizzle Droplet 2.0, Integrate 2.0 Scale)
Post-Processing PI,PS
Shot By Taro Seki