NGC7822 - The Question Mark Nebula.
My longest integration time so far, with 31 hours across 5 nights.
ZWO Seestar S30 Pro.
160mm, f5.3, 3715 exposures of 30’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars30pro #seestar #seestars30pro #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #ngc #ngc7822

NGC7822 - The Question Mark Nebula.
My longest integration time so far, with 31 hours across 5 nights.
ZWO Seestar S30 Pro.
160mm, f5.3, 3715 exposures of 30’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars30pro #seestar #seestars30pro #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #ngc #ngc7822

The Question Mark Nebula
====================

2,600 light-years away in Cepheus, a cosmic question mark is being written in gas and dust. Sharpless 171 (NGC 7822) is an active stellar nursery spanning over 100 light-years, powered by Berkeley 59 — a star cluster just two million years old. Its brightest member, BD+66 1673, burns at nearly 45,000 Kelvin, sculpting the surrounding cloud into the elephant trunks and dark pillars you see here. A two-million-year-old star carving a hundred-light-year nebula. The universe doesn't do things small.

The foreground scatter of stars in the upper part of the frame belongs to NGC 7762 — an unrelated open cluster that is 2.5 billion years old and just happens to share the same patch of sky. Ancient stars looking on as new ones are born.

Two-panel mosaic captured over two nights from Chemnitz, processed in Hubble Palette (HSO). 🔭

Scope: Askar 103APO
Lens: Askar 0.6x Reducer
Camera: ZWO ASI 294MC Pro
Filter: Antlia Tri-Band RGB Ultra
Mount: SkyWatcher AZ-EQ5-GT
Guiding: SkyWatcher Evoguide 50ED with ZWO ASI 224MC
Controller: ZWO ASIAir Pro
Focusser: ZWO EAF

Integration time: 16hrs 50min

Full version and print available at:
https://adfr.io/astro/20260310_sh2-171

#astrophotography #deepskyobject #narrowband #hubblepalette #emissionnebula #sh2171 #ngc7822 #questionmarknebula #cepheus #starforming #stellarnursery #berkeleycluster #hso #pixinsight #astronomyphotography #spacephotography #nightsky #cosmiclandscape #astrophoto #nebula #Sternenfotografie #Astrofotografie #deepsky #mosaic #longexposure #fromchemnitz

NGC7822 - Quick session interrupted by clouds.
ZWO Seestar S50 - @seestar.official.
250mm, f5, 660 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars50 #seestar #seestars50 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #ngc #ngc7822

NGC7822 - Quick session interrupted by clouds.
ZWO Seestar S50.
250mm, f5, 660 exposures of 10’’.
#telescope #telescopes #zwo #zwoasi #zwoseestar #zwoseestars50 #seestar #seestars50 #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #ngc #ngc7822

A cosmic question mark
==================

Last but not least in my little series from last week is an object rarely shown - Sh2-171. Together with Sh2-170 (the red "dot" on the left), it somewhat resembles a giant question mark, with a lot of interesting dark nebulosity and structure inside.

Scope: Askar 103APO 
Lens: Askar 0.6x Reducer 
Camera: Canon EOS 6Da 
Filter: Altair Tri-Band 
Mount: Skywatcher AZ-EQ5-GT 
Guiding: Svbony SV165 with ZWO ASI224MC 
Controller: ZWO ASIAir Pro

Integration time: 7hrs 15min

Full version at https://adfr.io

#astrophotography #astrophoto #narrowband #narrowbandimaging #deepsky #deepskyobjects #deepskyphotography #sh2-171 #sh2-170 #ngc7762 #ngc7822 #berkeley59 #10cas #v398cephei

#SkyWatch #Astrophotography #NGC7822 is a large emission nebula about 3000 light years from Earth in the constellation #Cepheus. The bright nebulosity is a star formation area comprised of mostly hydrogen. It is illuminated by its very hot central star, which is 100,000 times more luminous than our sun. #StillLearning

#SkyWatch #Astrophotography #NGC7822 is a large diffuse emission nebula about 3000 light years away in Cepheus. It is the site of active star formation and is home to one of the brightest nearby stars V398 Cep. V398 Cep is a red M5 star and is more than 77 times larger than our sun. Because it is so large and bright, it is expected to explode relatively quickly in a few thousand years. #StillLearning