NGC 7822 - The Cosmic Question Mark Nebula - Chuck Novice

Posted: Apr 23rd, 2025

Show astrometry on hover

NGC

Technical Info

Telescope/Lens: Sky-Watcher 200/1000PDS

Camera: Canon 6d

Mount: HEQ5 Pro

Guide Scope: Skywatcher 9/50

Guide Camera: ZWO ASI 120mm Mini

Software: Pixinsight, Photoshop

Accessories: TS-Optics Superflat GPU

Exposure:

110 x 120" ISO/Gain: 1600 - Filter ALP-T Dual Band (Ha-OIII) 5nm

Green zoneLight Pollution:

Gers, France

Feb 6th, 2024

NGC 7822 - THE COSMIC QUESTION MARK NEBULA - CHUCK NOVICE

Telescope/Lens: Sky-Watcher 200/1000PDS
Camera: Canon 6d
Mount: HEQ5 Pro
Guide Scope: Skywatcher 9/50
Guide Camera: ZWO ASI 120mm Mini
Software: Pixinsight, Photoshop
Accessories: TS-Optics Superflat GPU

Gers, France
Light Pollution: Green zone

Exposure:
110 x 120" ISO/Gain: 1600 - Filter ALP-T Dual Band (Ha-OIII) 5nm

Constellation: Cepheus
 Object type: Emitting nebula
 Distance: 3,000 light-years
 Magnitude: 6.5
 
 Fun Facts !
 Zoom in on the question mark loop: with NGC 7822, LBN 584 and LBN 588.
 
 This nebula contains the star BD+66 1673, the hottest star discovered within 1 kiloparsec of Earth (its surface temperature exceeds 45,000 degrees and its luminosity is 100,000 times that of the Sun).
 
 Intense radiation from this star (and others around it) is responsible for the ionization of the gas cloud and hence the colors that make up the nebula.
 
 The pillars of collapsing gas we see are nurseries for new stars, and are very similar to the famous “pillars of creation” in the Eagle Nebula (M16).

Original size: https://deepskyhosting.com/hVnqBiI
Author: Chuck Novice

3 h 40 m

721

Constellation: Cepheus
Object type: Emitting nebula
Distance: 3,000 light-years
Magnitude: 6.5

Fun Facts !
Zoom in on the question mark loop: with NGC 7822, LBN 584 and LBN 588.

This nebula contains the star BD+66 1673, the hottest star discovered within 1 kiloparsec of Earth (its surface temperature exceeds 45,000 degrees and its luminosity is 100,000 times that of the Sun).

Intense radiation from this star (and others around it) is responsible for the ionization of the gas cloud and hence the colors that make up the nebula.

The pillars of collapsing gas we see are nurseries for new stars, and are very similar to the famous “pillars of creation” in the Eagle Nebula (M16).

Resolution: 10608x6908 px

Scale: 31594 KB