Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  37 gam Cyg  ·  NGC 6910  ·  Sadr  ·  Sh2-108  ·  The star Sadr (γCyg)
Getting plate-solving status, please wait...
Gamma Cygni Nebula - SHO, Thomas Richter
Powered byPixInsight

Gamma Cygni Nebula - SHO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
Gamma Cygni Nebula - SHO, Thomas Richter
Powered byPixInsight

Gamma Cygni Nebula - SHO

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Equipment

Loading...

Acquisition details

Loading...

Description

Object description (www.constellation-guide.com):

The Gamma Cygni Nebula, also known as the Sadr Region or IC 1318, is a diffuse emission nebula that can be seen around Sadr (Gamma Cygni), the star at the center of the Northern Cross, which marks the heart of Cygnus, the Swan. Despite the name, the star and the nebula are unrelated. Even though it looks embedded in the nebulosity, Sadr is approximately 1,800 light years distant, while the nebula is much further away, at 4,900 light years.

The Gamma Cygni Nebula is considered an emission nebula because it is ionized by the radiation of the nearby stars and it emits visible light as a result. The visible portion of the H II region stretches over an area more than 100 light years across. The nebula is illuminated by an O9-class star which is visually obscured by interstellar material.

The Sadr Region is very easy to find in the sky. Sadr is one of the bright stars of the Northern Cross and it marks the heart of the celestial Swan. It is a white supergiant star with an apparent magnitude of 2.23. With 12 solar masses and 150 times the Sun’s radius, the star is about 33,000 times more luminous than the Sun.

Comments

Revisions

    Gamma Cygni Nebula - SHO, Thomas Richter
    Original
  • Final
    Gamma Cygni Nebula - SHO, Thomas Richter
    B

B

Description: reducing color blotch

Uploaded: ...

Sky plot

Sky plot

Histogram

Gamma Cygni Nebula - SHO, Thomas Richter