Globular Cluster Messier 14

Messier 14
Messier 14: Globular cluster M 14 in constellation Serpent Bearer; Refractor Takahashi TOA 150/1100 APO f/5.6 (TOA-645 Reducer); ASI 1600 MM-Cool; 10 Micron GM 2000 QCI Ultraportable; 1x5 min L, 8x5 min R, 2x5 min G, 3x5 min B (Total 70 Minuten); Muri near Bern, 515 m AMSL; © 14. 6. 2021 Manuel Jung [45]

History

The globular cluster Messier 14 was added to his list of nebulous celestial objects by Charles Messier just a few days after the discovery of M 9 and M 10 in June 1764.

Physical Properties

M 14 belongs to those globular clusters that do not have a sharply defined central compression. The brightness curve extends gently over the entire pane and drops continuously at the outer edges. The integrated spectral type is given as G0 and the distance as about 70'000 light years, but this value still needs a large correction due to the dusty region of the Milky Way, which is in the line of sight to M14. The cluster shows a radial speed of 130 km/s in our direction [4]

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Designation NGC 6402
Type GCL (VIII)
Right Ascension (J2000.0) 17h 37m 36.1s
Declination (J2000.0) -03° 14' 43"
Diameter 11 arcmin
Visual magnitude 7.6 mag
Metric Distance 9.300 kpc
Identification, Remarks h 1983=3698; GC 4315; M 14; GCL 72

Finder Chart

The globular cluster Messier 14 is located in the constellation Serpent Bearer (Ophiuchus). The best observation time is March to August.

Finder Chart Globular Cluster Messier 14
Globular Cluster Messier 14 in constellation Ophiuchus. 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]

Visual Observation

400 mm Aperture: The globular cluster M 14 is not easy to find, especially when the sky is so milky and bright that you can barely make out the stars of the Serpent Bearer, but once you find it in the 21 mm Ethos eyepiece, you are rewarded for your search with beautifully resolved stars all the way to the core region. With increasing magnification, more stars become visible in the core region. — 400 mm f/4.5 Taurus Dobsonian, Glaubenberg, 17. 6. 2023, Bernd Nies

Objects Within a Radius of 15°

References