Galactic Nebulae Sh 2-89 and Sh 2-90

Sh 2-89 and Sh 2-90
Sh 2-89 and Sh 2-90: Section of IRAC HEALPix survey, color - Spitzer mission - JPL/NASA [147]

History

The American astronomer Stewart Sharpless searched in the 1950-ies the photo plates of the «Palomar Observatory Sky Survey» made with the 48 inch Schmidt telescope and published it in 1959 a catalogue of 313 H-II regions, among them Sh 2-89 and Sh 2-90. [310] In 1965 Beverly T. Lynds added the nebula Sh 2-90 as LBN 063.10+00.46 (or LBN 144) in her «Catalogue of Bright Nebulae». [270]

Physical Properties

Sh 2-89 and 2-90 are H-II regions with active star formation. Many young stellar objects have been identified within the nebula. The gas is excited by O and B type of stars. The distance is estimated to 1.5 kpc. [145, 218, 607]

Coordinates in J2000.0. Data from Simbad [145]
Name RA [hms] Dec [dms] B Mag V Mag
Sh 2-89 19 50 04 +26 28 23 13.72 12.11
Sh 2-90 19 49 12 +26 51 36 14.6 13.63

Finder Chart

The nebula Sharpess 2-90 is located in the constellation Vulpecula. The best observation time is May to October.

Finder Chart Galactic Nebulae Sh 2-89 and Sh 2-90
Galactic Nebulae Sh 2-89 and Sh 2-90 in constellation Vulpecula. Charts created using SkySafari 6 Pro and STScI Digitized Sky Survey. Limiting magnitudes: Constellation chart ~6.5 mag, DSS2 close-ups ~20 mag. [149, 160]

More Objects Nearby (±15°)

References