Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  37 gam Cyg  ·  B347  ·  IC 1318  ·  LBN 234  ·  LBN 240  ·  LBN 241  ·  LBN 245  ·  LBN 248  ·  LBN 249  ·  LBN 251  ·  LBN 253  ·  LBN 257  ·  LBN 259  ·  LBN 261  ·  LBN 267  ·  LBN 268  ·  LBN 270  ·  LBN 273  ·  LBN 274  ·  LBN 279  ·  LBN 280  ·  LBN 281  ·  LBN 293  ·  LDN 879  ·  LDN 881  ·  LDN 882  ·  LDN 883  ·  LDN 886  ·  LDN 888  ·  LDN 889  ·  And 15 more.
Getting plate-solving status, please wait...
NGC 6910 Wide Field -  Sadr Region in Cygnus, Sigga
Powered byPixInsight

NGC 6910 Wide Field - Sadr Region in Cygnus

Getting plate-solving status, please wait...
NGC 6910 Wide Field -  Sadr Region in Cygnus, Sigga
Powered byPixInsight

NGC 6910 Wide Field - Sadr Region in Cygnus

Equipment

Loading...

Acquisition details

Loading...

Description

NGC 6910 is a young open cluster visible in the Swan constellation ; Is linked to the great nebula complex of Cygnus X and its numerous OB associations . NGC 6910 was first identified by William Herschel in 1786, through a 18.7- inch reflector telescope. His son John Herschel inserted it into the General Catalog of Nebulae and Clusters with the number 2077.

NGC 6910 is a cluster of tens of stars of brighter magnitude than 12. Its distance has been estimated to be approximately 1140 parsec (3710 light years ) or slightly higher, around 1500 parsec (4890 years light); In both cases, the cluster is located in the surrounding Cygnus X large nebula system, to which numerous OB associations are tied, including Cygnus OB2 and Cygnus OB9 , probably to which NGC 6910 is physically bound. His age was estimated at 5-10 million years at most and was determined by photometric studies.

Among its components are many remarkable variable stars , including the brightest star of the storage, HD 194279, also known as Cygni V2118; It is a Be star whose minimum oscillation is in the order of 0.07 magnitudes. Numerous are the β Cephei variables , all oscillating around magnitude 10. A large number of components are for intrinsically very bright blue supergiants .

The surrounding area is rich in clouds where stellar formation is active, as evidenced by the presence of at least 40 stars showing significant emissions in the Hα band.

Gamma Cygni (γ Cygni, abbreviated Gamma Cyg, γ Cyg), also named Sadr, is a star in the northern constellation of Cygnus, forming the intersection of an asterism of five stars called the Northern Cross.

With an apparent visual magnitude of 2.23, this is among the brighter stars visible in the night sky. Parallax measurements give a distance estimate of 1,800 light years (560 parsecs), with a 15% margin of error. The stellar classification of this star is F8 Iab, indicating that it has reached the supergiant stage of its stellar evolution. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.

Compared to the Sun this is an enormous star, with 12 times the Sun's mass and about 150 times the Sun's radius. It is emitting over 33,000 times as much energy as the Sun, at an effective temperature of 6,100 K in its outer envelope. This temperature is what gives the star the characteristic yellow-white hue of an F-type star. Massive stars such as this consume their nuclear fuel much more rapidly than the Sun, so the estimated age of this star is only about 12 million years old.

--Wikipedia

More:

APOD 9 July 2013

APOD 22 March 2017

360 seconds each through LRGB filters.

Comments

Revisions

  • Final
    NGC 6910 Wide Field -  Sadr Region in Cygnus, Sigga
    Original
  • NGC 6910 Wide Field -  Sadr Region in Cygnus, Sigga
    B

B

Description: NGC 6910 crop from larger image.

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 6910 Wide Field -  Sadr Region in Cygnus, Sigga